Soybean VARIETY TRIALS, Mississippi MISSISSIPPI S OFFICIAL VARIETY TRIALS. Information Bulletin 504 December 2015 GEORGE M.

Transcription

1 Information Bulletin 504 December 05 Mississippi Soybean VARIETY TRIALS, 05 MISSISSIPPI S OFFICIAL VARIETY TRIALS MISSISSIPPI AGRICULTURAL & FORESTRY EXPERIMENT STATION GEORGE M. HOPPER, DIRECTOR MISSISSIPPI STATE UNIVERSITY MARK E. KEENUM, PRESIDENT GREGORY A BOHACH, VICE PRESIDENT

2 TECHNICAL ADVISORY COMMITTEE Reuben Moore, Chairman Associate Director, MAFES Mississippi State University Tom Allen Associate Extension/Research Professor and Plant Pathologist Delta Research and Extension Center Wes Burger Associate Director, MAFES Mississippi State University Greg Ferguson Industry Representative Monsanto Anne M. Gillen USDA-ARS Stoneville Jeff Hollowell Industry Representative DuPont Pioneer Trent Irby Assistant Extension Professor and Soybean Specialist Mississippi State University Mark Kurtz Variety Trial Coordinator Mississippi State University Chris Ouzts Industry Representative Armor Seed Dennis Reginelli Regional Extension Specialist II Noxubee County Jan de Regt Producer Representative Dennis Rowe Statistician MSU Experimental Statistics Gibb Steele Producer Representative Randy Vaughan Foundation Seed Mississippi State University The Mississippi Soybean Promotion Board provided partial funding for this project.

3 NOTICE TO USER This information bulletin is a summary of research conducted under project number MIS 348 at seven locations in the state (see map). It is intended for farmers, seedsmen, colleagues, cooperators, and sponsors. Interpretation of this data should not be construed as a recommendation or as an endorsement of a specific variety or product. This report contains data generated as part of the Mississippi Agricultural and Forestry Experiment Station research program. Joint sponsorship by the organizations listed on pages 60-6 is gratefully acknowledged. Trade names of commercial products used in this report are included only for clarity and understanding. All available names (i.e., trade names, code numbers, chemical names, etc.) of varieties or products used in this research project are listed on pages 60-6.

4 Mississippi Soybean Variety Trials, 05 MAFES Official Variety Trial Contributors Brad Burgess Director, Variety Testing Mississippi State University Jake Bullard Assistant Director, Variety Testing Mississippi State University Tom Allen Associate Extension/Research Professor and Plant Pathologist Delta Research and Extension Center Dan Haire Area Extension Agent II DeSoto County Trent Irby Assistant Extension Professor and Soybean Specialist Mississippi State University Bisoondat Macoon Associate Professor and Interim Facilities Coordinator Brown Loam Branch Experiment Station Dennis Reginelli Regional Extension Specialist II Noxubee County Don Respess County Extension Director Coahoma County Extension Service Dennis Rowe Statistician, Experimental Statistics Mississippi State University Mark Silva Extension Associate III Delta Research and Extension Center Nick Simmons Extension Agent I Tippah County Extension Service Lester Stephens Extension Agent II Washington County Extension Service For more information, contact Burgess at (66) ; , Brad.Burgess@msstate.edu. Recognition is given to Jason Hillhouse and Jerry W. Nail, research technicians for the Variety Trial Program, for their assistance in packaging, planting, harvesting, and recording plot data. This publication was prepared by Dixie Albright, office associate for MAFES Research Support Units. This document was approved for publication as Information Bulletin 504 of the Mississippi Agricultural and Forestry Experiment Station. It was published by the Office of Agricultural Communications, a unit of the Mississippi State University Division of Agriculture, Forestry, and Veterinary Medicine. Copyright 05 by Mississippi State University. All rights reserved. This publication may be copied and distributed without alteration for nonprofit educational purposes provided that credit is given to the Mississippi Agricultural and Forestry Experiment Station. Find variety trial information online at mafes.msstate.edu/variety-trials.

5 TODD WILLIAMS FARM Olive Branch MORTON FARMS Falkner DULANEY FARMS & MATTSON FARMS Clarksdale DELTA BRANCH Stoneville STEELE FARMS Longwood BLACK BELT BRANCH Brooksville BROWN LOAM BRANCH Raymond Soybean Variety TEST LOCATIONS

6 Contents Introduction Summary of Yields by Maturity Group Conventional Group IV Conventional Group V Roundup Ready Group IV & V Year Summary of Yields by Maturity Group Conventional Group IV & V Roundup Ready Group IV & V Year Summary of Yields by Maturity Group Conventional Group IV & V Roundup Ready Group IV & V Results Stoneville (clay), Delta Branch Location. Irrigated and Nonirrigated 30 Rows Roundup Ready Group IV Roundup Ready Group V Liberty Link Group IV and V Stoneville (loam), Delta Branch Location. Bosket very fine sandy loam Irrigated 30 Rows Roundup Ready Group IV Roundup Ready Group V Clarksdale, Dulaney Farms Location. Sharkey clay Irrigated 30 Rows Roundup Ready Group IV Roundup Ready Group V Clarksdale, Mattson Farms Location. Dubbs very fine sandy loam Nonirrigated 9 Rows Roundup Ready Group IV Early and Group IV Late Brooksville, Black Belt Branch Location 5. Brooksville silty clay 9 Rows Conventional Group IV Conventional Group V Roundup Ready Group IV and V Liberty Link Group IV and V Falkner, Morton Farms Location 6. Falaya silt loam 9 Rows Roundup Ready Group IV and V Liberty Link Group IV and V Raymond, Brown Loam Branch Location 7. Loring silt loam 9 Rows Roundup Ready Group IV Roundup Ready Group V Olive Branch, Todd Williams Farm Longwood, Steele Farms Soybean Variety Trial Stem Canker Report Plant Characteristics Public Varieties Entered Commercial Varieties Entered

7 Mississippi Soybean Variety Trials, 05 Procedures INTRODUCTION There has been a proliferation of soybean varieties in recent years, and many good varieties are available to Mississippi producers. No single variety is superior, but in some situations, there are varieties that are more specifically adapted than others. Selecting a variety for planting requires knowledge of disease, nematode, and herbicide reactions, as well as the yield performance of each variety on a particular soil type. In many cases, planting the proper varieties will make substantial differences in yield and profitability on a farm. Proper management, including adequate lime, fertilizer, and weed control, is required to produce high yields of any variety, but yields may be limited, even under good management, unless the proper varieties are planted. Soybean variety trials were conducted at eight locations in 05 (see map). Commercial seed companies were given the opportunity to enter varieties for testing. Seed of all private entries were supplied by the participating companies. Public varieties were selected by the Technical Advisory Committee for evaluation at each location. The experimental design at each location for each maturity group was a randomized complete block, with three replications of each entry. Seeding Rate. All seeds were packaged for planting at the rate of nine seeds per foot of row for 30-inch row spacing and at the rate of six seeds per foot for 9-inch row spacing. Plots were planted with a cone planter. Irrigated plots had four rows, spaced 30 inches apart; nonirrigated plots had three rows, spaced 9 inches apart. All irrigated plots were planted to a plot length of 5 feet by using a planter with a cable trip system. All nonirrigated plots were planted to a length of 8 feet. Plot ends were trimmed to a uniform length 3 to 4 weeks after emergence. Cultural Practices. Cultural and pest control practices for optimum yields were followed. Plots were limed and fertilized on the basis of an annual soil test. All seeds were treated with an insecticide/fungicide before planting. Only herbicides currently registered for use on soybeans with strict adherence to all label instructions were used in these studies. Maturity Date. Maturity is considered to be the date when the pods are dry and most of the leaves have dropped. Under most conditions, the stems are also dry. Yield. An Almaco plot combine was used to harvest each plot. Harvested seed were allowed to dry at ambient temperature to a uniform moisture content before weighing. Weights were converted to yield in bushels per acre (60 pounds per bushel) at 3% moisture. Plant Height. Plants were measured from the soil to the top extremity, at maturity, and plant height was recorded as the average of the height of plants measured. Lodging. Lodging was rated and recorded on a scale of = almost all plants erect, = all plants leaning slightly or only a few plants down, 3 = all plants leaning moderately or 5 to 50 percent of plants down, 4 = all plants leaning considerably or 50 to 80 percent of plants down, and 5 = all plants down. Mississippi Agricultural and Forestry Experiment Station

8 How to Select Varieties In Problem or Difficult Fields () Identify fields that have had problems in the past. Problems to consider may include diseases, nematodes, or fields that make planting or harvest difficult because of extremely dry or wet conditions. The Mississippi State University Extension Service offers a disease diagnostic service and nematode analysis free of charge. () Use Tables 60 to 67 to select varieties for fields that need disease resistance. (3) Select varieties using multiyear averages from all available locations. Identify those varieties that have desired pest resistance along with a high yield potential. Use data from a test site or sites with a soil type similar to that where the soybeans will be grown. Consider planting dates and maturity dates that may allow you to avoid historical field problems. In Nonproblem Fields () Identify the farm s highest yielding fields that have no specific disease problems. () Select varieties with the best yield potential using multiyear averages from all available locations. Use data from a test site or sites with a soil type similar to that where the soybeans will be grown. (3) Try new varieties on a limited number of acres. Don t abandon older, consistent-performing varieties that are yielding well unless research and experience show an advantage for newer varieties. Planting Date and Maturity Date () Varieties in Maturity Groups IV and V are recommended. Earlier maturing varieties should be considered for planting where fall seedbed preparation was done the previous year and in fields that are subject to drought stress during the growing season and/or wet soils during the usual harvest period. Later maturing varieties should be considered for planting in fields that are not as prone to drought stress, where irrigation will be used to alleviate drought stress, and for later planting. However, early General Characteristics of Varieties planting of all acreage is encouraged to reduce risk from drought and obtain higher yields. () Early-season production is a practice that has been quite successful and consistent for several years. Cool, wet soils at planting may justify the use of a seed treatment that has activity against Pythium, since no varieties have resistance to infection and resulting damage from this organism. Most Maturity Group IV soybeans have a narrow growth habit. Given their growth, habit narrow rows are quite advantageous. Early April to early May planting is recommended for early-season production of Group IV varieties. Irrigation allows later planting of early-maturing soybeans; however, the full yield potential may not be realized when planted late. Timely harvest is crucial with early-maturing varieties because dry weather at maturity may promote shattering. There is a wide range in maturity within Group IV soybeans. Determine if an early Group IV or a late Group IV variety, or some acreage of both, will fit into your operation. (3) Timely planting is crucial for optimum production of all maturity groups of soybeans. An attempt should be made to complete soybean planting as early as possible. Planting of Group V and Group VI can be made in April. Delays in planting will result in reduced yield potential for almost all varieties in all maturity groups. Herbicide-Resistant Varieties () Evaluate overall performance characteristics of the variety including yield potential, disease and nematode resistance, maturity date, lodging, etc. as you would any variety. () Compare these characteristics to other varieties, conventional and herbicide-resistant. (3) Consider seed premiums, technology fees, and specific weed problems. Determine total cost of conventional and herbicide-resistant-crop weed control programs, and combine this information with factors listed above in choosing a variety. Soybean varieties differ in significant characteristics that may not affect their performance. Tables 68 to 75 give the general characteristics of most varieties grown in Mississippi. Pubescence and Hilum Color. Brown (tawny) and gray are the basic pubescence (hair) colors found among varieties. Varying pod-wall colors result in different intensities of mature pod colors. The eye of the seed is called a hilum, or point of attachment to the pod, and it differs in color by variety. Seed Size. There is no relationship between inherited seed size and seed yield. A small-seeded variety may yield as much as or more than a large-seeded variety. The average seed per pound for different varieties is shown in Tables 68 to 75, but this is subject to seasonal variation. Knowing the number of seed per pound is important in determining the amount of seed needed for planting. Fewer pounds are required for small-seeded varieties than for large-seeded varieties. Your county Extension office has a publication (Information Sheet 94) that deals with seeding rates and plant populations. Mississippi Soybean Variety Trials, 05

9 Flowering. Varieties of Maturity Group IV generally display an indeterminate growth habit. This means that a large portion of their vegetative growth occurs after the onset of flowering begins. In contrast, varieties of Groups V and VI display a determinate growth habit, where most of the vegetative growth occurs before flowering. The date of first flower will be determined by the time of planting and maturity. For example, a mid-group IV variety may bloom 3 weeks earlier than a Group V variety, whereas a late Group IV variety may bloom only week earlier than a Group V variety. Soybean flower petals are purple or white. The flower color is controlled strictly by genetics, and only one flower color occurs in a pure variety. Maturity Group. Within the Maturity Group IV trials, the wide variation in maturity dates is attributed to lack of rigid standards for classifying varieties within a group. It Use of Data Tables and Summary Statistics was decided to subdivide both the Group IV and Group V trials into two maturity groups. All maturity groups were assigned an early- and late-maturity check: Conventional Test Maturity Group Check Group IV AG463 Group V RC508 Roundup Ready Test Maturity Group Early Check Late Check Group IV Early AG463 Group IV Late AG463 48X0 Group V Early AG533 AG583 Group V Late AG583 Liberty Link Check Group IV DG 4967LL Group V P 560 LL The yield potential of a given variety cannot be measured with complete accuracy. Consequently, replicated plots of all varieties are evaluated for yield, and the yield of a given variety is estimated as the mean of all replicated plots of that variety. Yields may vary from one plot to another, which introduces a certain degree of error to the estimation of yield potential. This natural variation is often responsible for yield differences seen among different varieties. Thus, even if the mean yield of two varieties is numerically different, they are not necessarily significantly different in terms of yield potential. In other words, the ability to measure yield is not precise enough to determine whether such small differences are observed purely by chance or because of superior performance. The least significant difference (LSD) is an estimate of the smallest difference between two varieties that can be declared to be the result of something other than random variation in a particular trial. Consider the following example for a given trial: Variety Abe Bill Charlie LSD Yield 40 bu/a 35 bu/a 3 bu/a 7 bu/a The difference between variety Abe and variety Bill is 5 bushels per acre (40-35 = 5). This difference is smaller than the LSD (7 bushels per acre). Consequently, it is concluded that variety Abe and variety Bill have the same yield potential, since the observed difference occurred purely due to chance. The difference between variety Abe and variety Charlie is 9 bushels per acre (40-3 = 9), which is larger than the LSD (7 bushels per acre). Therefore, it is concluded that the yield potential of variety Abe is superior to that of variety Charlie, since the difference is larger than would be expected purely by chance. The coefficient of variation (CV) is a measure of the relative precision of a given trial and is used to compare the relative precision of different trials. The CV is generally considered to be an estimate of the amount of unexplained variation in a given trial. This unexplained variation could be the result of variation between plots, with respect to soil type, fertility, insects, diseases, drought stress, etc. In general, the higher the CV, the less precise a given trial is. The coefficient of determination (R ) is another measure of the level of precision in a trial and is also used to compare the relative precision of different trials. The R is a measure of the amount of variation that is explained, or accounted for, in a given trial. For example, an R value of 90 percent indicates that 90 percent of the observed variation in the trial has been accounted for, with the remaining 0 percent being unaccounted for. The higher the R value, the more precise the trial. The R is generally considered to be a better measure of precision than is the CV, for comparison of different trials. Note: Varieties in the following tables with names in italics are experimental. Mississippi Agricultural and Forestry Experiment Station 3

10 Table. Summary of Yields for Maturity Group IV Conventional for the 05 Mississippi Soybean Variety Trials. Brand Variety Brooksville Nonirr. bu/a GoSoy GLIDER 37.9 GoSoy IRENE 4.4 MPV 483C 48. U. of Arkansas R U. of Arkansas UA 504C 4.9 U. of Arkansas UA 574HP 5.4 U. of Missouri S USG Ellis 4.6 Mean 43.4 LSD 8.8 Error df 4 CV 4.3 R 83 Table. Summary of Yields for Maturity Group V Conventional for the 05 Mississippi Soybean Variety Trials. Brand Variety Brooksville Nonirr. bu/a GoSoy LELAND 46. U. of Arkansas Osage 3. U. of Arkansas R U. of Arkansas R U. of Arkansas UA53C 43.0 U. of Arkansas UA U. of Missouri S U. of Missouri S U. of Missouri S USDA-ARS JTN Mean 47.6 LSD 7.9 Error df 8 CV.8 R 75.9 Table 3. Summary of Yields for Maturity Group IV Early Roundup Ready for the 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Clarksdale Falkner Raymond Stoneville Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Nonirr. Nonirr. (clay) Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Armor 46-R Armor 43-R Armor AR Armor AR Asgrow AG Asgrow AG Asgrow AG Asgrow AG Asgrow AG Credenz CZ 48 RY Credenz CZ 4590 RY Croplan RC Croplan RC Delta Grow DG4670RY Dyna-Gro 3RY Dyna-Gro S43RY Dyna-Gro S46RY Great Heart Seed GT-435CR Great Heart Seed GT-469CRS Morsoy Extra 46X Mycogen 5N404R Mycogen 5N433R Mycogen 5N45R NK Brand S45-V Progeny P 4 RY Progeny P 44 RY Progeny P 463 RYS Steyer 4303R Steyer 460R USG 74F4RS Mean LSD Error df CV R Mississippi Soybean Variety Trials, 05

11 Table 4. Summary of Yields for Maturity Group IV Late Roundup Ready for the 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Clarksdale Falkner Raymond Stoneville Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Nonirr. Nonirr. (clay) Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Armor 47-R Armor 49-R Armor AR49X Asgrow AG Asgrow AG Credenz CZ 4959 RY Croplan RC 475S Delta Grow DG4755RR Delta Grow DG4765RR/STS Delta Grow DG4775RR/STS Delta Grow DG4790RR Delta Grow DG485RR/STS Delta Grow DG4880RR Delta Grow DG4935RR/STS Delta Grow DG4970RR Delta Grow DG4995 RR Dyna-Gro 37RY Dyna-Gro S48RS Dyna-Gro S49RY GoSoy 474GTS GoSoy 494GTS GoSoy 495R Great Heart Seed GT-476CR Great Heart Seed GT-477CR Great Heart Seed GT-48 CRS Hornbeck HBK RY MorSoy Extra 49X Morsoy Xtra 47X Morsoy Xtra 48X Mycogen 5N479R Mycogen 5N490R NK Brand S47-K NK Brand S48-D Progeny P 4757 RY Progeny P 4788 RY Progeny P 4850 RYS Progeny P 4900 RY REV 47R REV 47R REV 48A REV 49A REV 49A REV 49A REV 49R Schillinger 495.RC Steyer 480R U. of Missouri S USG 74B83RS USG 74D95RS USG 74K95RS USG 74A74RS Mean LSD Error df CV R Mississippi Agricultural and Forestry Experiment Station 5

12 Table 5. Summary of Yields for Maturity Group V Early Roundup Ready for the 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Falkner Raymond Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Armor 50-R Armor 5-R Armor AR Armor AR Armor 55-R Asgrow AG Asgrow AG Asgrow AG Asgrow AG Asgrow AG Croplan RC Delta Grow DG570RR/STS Delta Grow DG530RR Delta Grow DG5575RR Delta Grow DG565RR Dyna-Gro 3RY Dyna-Gro S5RY Dyna-Gro S56RY Great Heart Seed GT56CR MorSoy Extra 55X Mycogen 5N50R Mycogen 5N550R Mycogen 5N5R NK Brand S50-J NK Brand S5-Y NK Brand S55-Q Progeny P 50 RY Progeny P 53 RY Progeny P 56 RYS Progeny P 5333 RY Progeny P 5555 RY Progeny P 560 RY REV 5A REV 5A REV 54R REV 55R REV 56R Schillinger 50.RC U. of Arkansas R0-97RY U. of Arkansas R-89RY U. of Arkansas UA 544RR U. of Missouri S USG 75J45R Mean LSD Error df CV R Mississippi Soybean Variety Trials, 05

13 Table 6. Summary of Yields for Maturity Group V Late Roundup Ready for the 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Falkner Raymond Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Asgrow AG Dyna-Gro 39RY Dyna-Gro S57RY NK Brand S58-Z NK Brand S59-V Progeny P 575 RY REV 57R USG 75B75R Mean LSD Error df CV R Table 7. Summary of Yields for Maturity Group IV Liberty Link for the 05 Mississippi Soybean Variety Trials. Brand Variety Stoneville Brooksville Falkner Nonirr. Overall Irr. (clay) Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a Armor 47-L Armor 49X5L Credenz CZ 3945 LL Credenz CZ 405 LL Credenz CZ 4540LL Credenz CZ 4748 LL Credenz CZ 488 LL Delta Grow DG4567LL Delta Grow DG478LL Delta Grow DG4967LL Delta Grow DG4977LL/STS Delta Grow DG498LL/STS Delta Grow DG4990LL Dyna-Gro S49LL GoSoy 474LL Halo Halo Halo Hornbeck HBK LL Hornbeck HBK LL Hornbeck LL Progeny P 4560 LL Progeny P 484 LLS Progeny P 4930 LL REV 49L Mean LSD Error df CV R Mississippi Agricultural and Forestry Experiment Station 7

14 Table 8. Summary of Yields for Maturity Group V Liberty Link for the 05 Mississippi Soybean Variety Trials. Brand Variety Stoneville Brooksville Falkner Nonirr. Overall Irr. (clay) Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a Armor 5X5L Armor 53-L Credenz CZ 547 LL Credenz CZ 550 LL Credenz CZ 54 LL Credenz CZ 5445 LL Credenz CZ 555 LL Credenz CZ 577 LL Delta Grow DG5067LL Delta Grow DG5367LL Delta Grow DG546LL Delta Grow DG5467LL Dyna-Gro S5LL Dyna-Gro S55LS GoSoy 55LL GoSoy 55LL GoSoy 555LL Halo Progeny P 560 LL Progeny P 544 LLS Progeny P 5460 LL Progeny P 5960 LL Progeny P 6355 LL REV 55L USG 75G4L Mean LSD Error df CV R Table 9. Summary of -Year Yields for Maturity Group IV Conventional for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Brooksville Nonirr. bu/a MPV 483C 5.8 USG Ellis 47.6 Overall Mean 49.7 Table 0. Summary of -Year Yields for Maturity Group V Conventional for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Brooksville Nonirr. bu/a GoSoy LELAND 48.3 U. of Arkansas Osage 38.3 U. of Arkansas R U. of Arkansas UA53C 45.7 U. of Arkansas UA U. of Missouri S USDA-ARS JTN Overall Mean Mississippi Soybean Variety Trials, 05

15 Table. Summary of -Year Yields for Maturity Group IV Early Roundup Ready for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Clarksdale Falkner Raymond Stoneville Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Nonirr. Nonirr. (clay) Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Armor 46-R Armor AR Asgrow AG Asgrow AG Asgrow AG Asgrow AG Croplan RC Delta Grow DG4670RY Dyna-Gro 3RY Dyna-Gro S43RY Dyna-Gro S46RY Mycogen 5N45R NK Brand S45-V Progeny P 4 RY Progeny P 463 RYS Steyer 4303R USG 74F4RS Overall Mean Table. Summary of -Year Yields for Maturity Group IV Late Roundup Ready for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Clarksdale Falkner Raymond Stoneville Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Nonirr. Nonirr. (clay) Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Asgrow AG Asgrow AG Croplan RC 475S Delta Grow DG4755RR Delta Grow DG4765RR/STS Delta Grow DG4775RR/STS Delta Grow DG485RR/STS Delta Grow DG4880RR Delta Grow DG4970RR Dyna-Gro 37RY Dyna-Gro S48RS Dyna-Gro S49RY Great Heart Seed GT-476CR Great Heart Seed GT-48 CRS Hornbeck HBK RY Morsoy Extra 47X Morsoy Extra 48X Mycogen 5N479R NK Brand S47-K Progeny P 4788 RY Progeny P 4850 RYS Progeny P 4900 RY REV 47R REV 47R REV 49A REV 49R USG 74B83RS Overall Mean Mississippi Agricultural and Forestry Experiment Station 9

16 Table 3. Summary of the -Year Yields for Maturity Group V Early Roundup Ready for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Falkner Raymond Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Armor 50-R Armor 5-R Asgrow AG Asgrow AG Asgrow AG Asgrow AG Asgrow AG Croplan RC Delta Grow DG530RR Delta Grow DG5575RR Dyna-Gro S5RY Dyna-Gro S56RY Great Heart Seed GT56CR Mycogen 5N50R Mycogen 5N550R Mycogen 5N5R NK Brand S5-Y NK Brand S55-Q Progeny P 53 RY Progeny P 5333 RY Progeny P 5555 RY Progeny P 560 RY REV 5A REV 54R REV 55R REV 56R U. of Arkansas R0-97RY Overall Mean Table 4. Summary of -Year Yields for Maturity Group V Late Roundup Ready for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Falkner Raymond Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Asgrow AG Dyna-Gro 39RY REV 57R Overall Mean Table 5. Summary of -Year Yields for Maturity Group IV Liberty Link for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Stoneville Brooksville Falkner Nonirr. Overall Irr. (clay) Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a Delta Grow DG4967LL Delta Grow DG498LL/STS Delta Grow DG4990LL Dyna-Gro S49LL Halo Hornbeck HBK LL Hornbeck LL Progeny P 4560 LL REV 49L Overall Mean Mississippi Soybean Variety Trials, 05

17 Table 6. Summary of -Year Yields for Maturity Group V Liberty Link for the 04 and 05 Mississippi Soybean Variety Trials. Brand Variety Stoneville Brooksville Falkner Nonirr. Overall Irr. (clay) Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a Credenz CZ 550 LL Credenz CZ 54 LL Delta Grow DG5367LL Delta Grow DG546LL Halo Progeny P 560 LL Progeny P 5460 LL Progeny P 5960 LL REV 55L Overall Mean Table 7. Summary of 3-Year Yields for Maturity Group V Conventional for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Brooksville Nonirr. bu/a GoSoy LELAND 49.9 U. of Arkansas Osage 4.3 U. of Arkansas UA Overall Mean 47.5 Table 8. Summary of 3-Year Yields for Maturity Group IV Early Roundup Ready for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Clarksdale Falkner Raymond Stoneville Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Nonirr. Nonirr. (clay) Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Armor 46-R Asgrow AG Asgrow AG Asgrow AG Croplan RC Delta Grow DG4670RY Dyna-Gro 3RY Progeny P 4 RY Progeny P 463 RYS Overall Mean Mississippi Agricultural and Forestry Experiment Station

18 Table 9. Summary of 3-Year Yields for Maturity Group IV Late Roundup Ready for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Clarksdale Falkner Raymond Stoneville Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Nonirr. Nonirr. (clay) Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Asgrow AG Croplan RC 475S Delta Grow DG4755RR Delta Grow DG4765RR/STS Delta Grow DG485RR/STS Delta Grow DG4880RR Delta Grow DG4970RR Dyna-Gro 37RY Dyna-Gro S48RS Great Heart Seed GT-476CR Hornbeck HBK RY Morsoy Extra 47X Morsoy Extra 48X Progeny P 4850 RYS Progeny P 4900 RY REV 47R REV 47R REV 49R USG 74B83RS Overall Mean Table 0. Summary of 3-Year Yields for Maturity Group V Early Roundup Ready for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Falkner Raymond Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Asgrow AG Asgrow AG Croplan RC Delta Grow DG5575RR Dyna-Gro S56RY NK Brand S5-Y Progeny P 53 RY Progeny P 5333 RY Progeny P 5555 RY Progeny P 560 RY REV 54R REV 55R REV 56R Overall Mean Table. Summary of 3-Year Yields for Maturity Group V Late Roundup Ready for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Clarksdale Stoneville Stoneville Irr. Brooksville Falkner Raymond Nonirr. Overall Irr. Irr. (clay) Irr. (loam) Avg. Nonirr. Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a bu/a Asgrow AG Dyna-Gro 39RY REV 57R Overall Mean Mississippi Soybean Variety Trials, 05

19 Table. Summary of 3-Year Yields for Maturity Group IV Liberty Link for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Stoneville Brooksville Falkner Nonirr. Overall Irr. (clay) Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a Delta Grow DG4967LL Delta Grow DG498LL/STS Delta Grow DG4990LL Dyna-Gro S49LL Progeny P 4560 LL Overall Mean Table 3. Summary of 3-Year Yields for Maturity Group V Liberty Link for the 03, 04, and 05 Mississippi Soybean Variety Trials. Brand Variety Stoneville Brooksville Falkner Nonirr. Overall Irr. (clay) Nonirr. Nonirr. Avg. Avg. bu/a bu/a bu/a bu/a bu/a Delta Grow DG546LL Progeny P 560 LL Progeny P 5460 LL Progeny P 5960 LL Overall Mean Mississippi Agricultural and Forestry Experiment Station 3

20 STONEVILLE (clay) IRR. AND NONIRRIGATED, DELTA BRANCH Crop Summary The plots were planted into a stale seedbed. Soil moisture at planting was optimum for germination. Timely irrigation in combination with rainfall allowed for ample soil moisture throughout the growing season in the irrigated plots. High temperatures and dry weather took a toll on the dryland plots. Harvest was completed in a timely manner without difficulties. Good yields were observed in the irrigated plots at this location; however, the dry summer resulted in low yields within the dryland trials. Planting date: may 5 Harvest date: iv Early and IV Late Roundup Ready on September 5 (Nonirrigated) IV Early and IV Late Roundup Ready on September 3 (Irrigated) V Early and V Late Roundup Ready on September 30 (Irrigated) IV and V Liberty Link on September 30 (Irrigated) Soil type: sharkey clay Soil ph: Soil fertility: p=h, K=H Previous crop: soybeans (irrigated), Corn (nonirrigated) Fertilizer added: preplant lb/a Irrigation dates: june 4, July 5, July 8, August 7, August 9, September Herbicide applied:......preemergence Authority oz/a, Dual II 3 oz/a, and Gramoxone 3 oz/a on May 5 (Irrigated and Nonirrigated) Postemergence Roundup Ready Roundup 3 oz/a, 0.6 oz/a, and 0 oz/a on July 3 (Irrigated and Nonirrigated) Liberty Link 30 oz/a, 0.6 oz/a, 4 oz/a, and 0 oz/a on July 3 (Irrigated) DELTA BRANCH Stoneville Rainfall Summary Inches May June July August September Total Mississippi Soybean Variety Trials, 05

21 Table 4. Roundup Ready Maturity Group IV Early Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Morsoy Extra 46X Asgrow AG Dyna-Gro 3RY Mycogen 5N45R Croplan RC Delta Grow DG4670RY Mycogen 5N433R Dyna-Gro S43RY Asgrow AG Armor AR Progeny P 463 RYS Armor 46-R Great Heart Seed GT-469CRS Progeny P 4 RY USG 74F4RS NK Brand S45-V Armor AR Steyer 4303R Steyer 460R Credenz CZ 48 RY Croplan RC Credenz CZ 4590 RY Asgrow AG Progeny P 44 RY Dyna-Gro S46RY Great Heart Seed GT-435CR Asgrow AG Asgrow AG Armor 43-R Mycogen 5N404R Mean 68.6 LSD 4.7 Error df 58 CV 5 R 88.4 No maturity dates taken. Table 5. Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Steyer 4303R Progeny P 463 RYS Armor 46-R Asgrow AG Croplan RC Dyna-Gro S43RY Armor AR Mycogen 5N433R USG 74F4RS Great Heart Seed GT-469CRS Progeny P 44 RY Progeny P 4 RY Morsoy Extra 46X Armor 43-R Credenz CZ 48 RY No maturity dates taken. Mississippi Agricultural and Forestry Experiment Station 5

22 Table 5 (continued). Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG Asgrow AG Croplan RC Mycogen 5N404R NK Brand S45-V Mycogen 5N45R Dyna-Gro 3RY Asgrow AG Delta Grow DG4670RY Armor AR Great Heart Seed GT-435CR Steyer 460R.6 7 Asgrow AG Credenz CZ 4590 RY.6 3 Dyna-Gro S46RY Mean 7.9 LSD 4.3 Error df 58 CV.4 R 73.6 No maturity dates taken. Table 6. Roundup Ready Maturity Group IV Late Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Delta Grow DG4790RR Great Heart Seed GT-477CR REV 49R Progeny P 4788 RY NK Brand S48-D Armor 47-R Progeny P 4757 RY NK Brand S47-K REV 47R Hornbeck HBK RY Delta Grow DG4935RR/STS GoSoy 495R REV 49A Dyna-Gro S49RY Asgrow AG U. of Missouri S MorSoy Extra 49X Croplan RC 475S Progeny P 4850 RYS Dyna-Gro S48RS Morsoy Extra 47X REV 49A USG 74K95RS REV 48A Mycogen 5N479R Morsoy Extra 48X Armor AR49X REV 49A Great Heart Seed GT-476CR Delta Grow DG4970RR No maturity dates taken. 6 Mississippi Soybean Variety Trials, 05

23 Table 6 (cont.). Roundup Ready Maturity Group IV Late Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Steyer 480R Schillinger 495.RC Delta Grow DG4880RR Mycogen 5N490R Asgrow AG Delta Grow DG485RR/STS REV 47R Great Heart Seed GT-48 CRS Delta Grow DG4765RR/STS Progeny P 4900 RY Delta Grow DG4755RR USG 74B83RS GoSoy 474GTS USG 74D95RS Delta Grow DG4995 RR 64.7 GoSoy 494GTS Armor 49-R USG 74A74RS Delta Grow DG4775RR/STS Credenz CZ 4959 RY Dyna-Gro 37RY Mean 7.7 LSD 5.4 Error df 00 CV 5.5 R 76.7 No maturity dates taken. Table 7. Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 REV 47R REV 47R NK Brand S48-D Great Heart Seed GT-477CR Armor 47-R Delta Grow DG4935RR/STS Armor AR49X 9. 9 REV 49A Delta Grow DG485RR/STS Progeny P 4757 RY NK Brand S47-K USG 74D95RS Morsoy Extra 47X REV 49A Delta Grow DG4765RR/STS Delta Grow DG4790RR Dyna-Gro S48RS Delta Grow DG4755RR Asgrow AG Delta Grow DG4880RR Asgrow AG Morsoy Extra 48X Mycogen 5N490R Progeny P 4788 RY No maturity dates taken. Mississippi Agricultural and Forestry Experiment Station 7

24 Table 7 (continued). Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Great Heart Seed GT-476CR Progeny P 4900 RY Hornbeck HBK RY REV 48A GoSoy 474GTS 4. 3 GoSoy 495R Steyer 480R Great Heart Seed GT-48 CRS Mycogen 5N479R Dyna-Gro 37RY USG 74A74RS.8 30 Armor 49-R44. 9 Delta Grow DG4775RR/STS REV 49R Croplan RC 475S GoSoy 494GTS.7 5 Delta Grow DG4970RR Dyna-Gro S49RY Delta Grow DG4995 RR. 8 Credenz CZ 4959 RY MorSoy Extra 49X REV 49A Schillinger 495.RC USG 74K95RS USG 74B83RS U. of Missouri S Progeny P 4850 RYS Mean 5.4 LSD 6.4 Error df 00 CV 8.5 R 60.8 No maturity dates taken. Table 8. Roundup Ready Maturity Group V Early Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG Progeny P 5555 RY Delta Grow DG530RR Armor 55-R Armor 5-R Dyna-Gro S56RY Asgrow AG Mycogen 5N550R Armor AR Dyna-Gro S5RY REV 56R MorSoy Extra 55X Progeny P 560 RY REV 5A Mycogen 5N5R Dyna-Gro 3RY Great Heart Seed GT56CR No maturity dates taken. 8 Mississippi Soybean Variety Trials, 05

25 Table 8 (cont.). Roundup Ready Maturity Group V Early Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 75J45R Mycogen 5N50R U. of Arkansas R0-97RY Delta Grow DG5575RR Progeny P 50 RY Armor 50-R Delta Grow DG565RR NK Brand S50-J NK Brand S55-Q Progeny P 53 RY Asgrow AG Asgrow AG REV 5A Delta Grow DG 570 RR/STS Asgrow AG REV 54R Progeny P 5333 RY Progeny P 56 RYS REV 55R Croplan RC U. of Missouri S Armor AR U. of Arkansas UA 544RR U. of Arkansas R-89RY NK Brand S5-Y Schillinger 50.RC Mean 85. LSD 5.6 Error df 84 CV 4.9 R 75. No maturity dates taken. Table 9. Roundup Ready Maturity Group V Late Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 REV 57R USG 75B75R Dyna-Gro S57RY NK Brand S59-V Asgrow AG Dyna-Gro 39RY Progeny P 575 RY NK Brand S58-Z Mean 84.7 LSD 0.8 Error df 4 CV 8.9 R 38.7 No maturity dates taken. Mississippi Agricultural and Forestry Experiment Station 9

26 Table 30. Maturity Group IV Liberty Link Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 GoSoy 474LL Dyna-Gro S49LL Delta Grow DG478LL Hornbeck HBK LL Armor 47-L Halo Credenz CZ 4748 LL REV 49L Progeny P 4930 LL Delta Grow DG4990LL Delta Grow DG498LL/STS Progeny P 484 LLS Delta Grow DG4967LL Hornbeck LL Armor 49X5L Progeny P 4560 LL Delta Grow DG4977LL/STS Halo Halo Credenz CZ 488 LL Delta Grow DG4567LL Credenz CZ 4540LL Hornbeck HBK LL Credenz CZ 405 LL Credenz CZ 3945 LL Mean 76. LSD 5. Error df 48 CV 4.9 R 88.4 No maturity dates taken. 0 Mississippi Soybean Variety Trials, 05

27 Table 3. Maturity Group V Liberty Link Soybeans (Delta Branch Experiment Station, Stoneville, clay). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 75G4L Armor 5X5L 8. 4 REV 55L Credenz CZ 550 LL Delta Grow DG5067LL GoSoy 55LL GoSoy 55LL Credenz CZ 54 LL Dyna-Gro S5LL Delta Grow DG546LL GoSoy 555LL Credenz CZ 577 LL Delta Grow DG5467LL Credenz CZ 547 LL 7.5 Dyna-Gro S55LS Armor 53-L Progeny P 5960 LL Halo Progeny P 5460 LL Progeny P 560 LL Delta Grow DG5367LL Progeny P 544 LLS Credenz CZ 555 LL Credenz CZ 5445 LL Progeny P 6355 LL Mean 70. LSD 7. Error df 48 CV 7.5 R 89.5 No maturity dates taken. Mississippi Agricultural and Forestry Experiment Station

28 Crop Summary STONEVILLE (loam), DELTA BRANCH Soybean plots were planted into a seedbed that had been freshly hipped and do-alled. Soil moisture at planting was optimum for germination. All plots quickly emerged to a good stand. Timely irrigation and rainfall allowed for sufficient soil moisture throughout the growing season. Harvest was completed in a timely manner, and good yields were observed. Planting date: april Harvest date: iv Early Roundup Ready on September 3 IV Late Roundup Ready on September 3 V Early and V Late Roundup Ready on September 30 Soil type: bosket very fine sandy loam Soil ph: Soil fertility: p=h, K=H Previous crop: cotton Fertilizer added: preplant 500 lb/a Irrigation dates: july 6, July 0, August 6 Herbicide applied:......preplant pt/a Preemergence Authority oz/a and Dual II 4 oz/a on April DELTA BRANCH Stoneville Rainfall Summary Inches May June July August September Total Mississippi Soybean Variety Trials, 05

29 Table 3. Roundup Ready Maturity Group IV Early Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, loam). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Morsoy Extra 46X Dyna-Gro 3RY Mycogen 5N433R Mycogen 5N45R Croplan RC Delta Grow DG4670RY Credenz CZ 4590 RY USG 74F4RS Armor AR Steyer 4303R Asgrow AG Armor 46-R Dyna-Gro S43RY Asgrow AG Dyna-Gro S46RY Steyer 460R Armor AR Croplan RC Progeny P 4 RY Progeny P 463 RYS NK Brand S45-V Asgrow AG Asgrow AG Credenz CZ 48 RY Great Heart Seed GT-469CRS Asgrow AG Great Heart Seed GT-435CR Mycogen 5N404R 65.0 Armor 43-R Progeny P 44 RY Mean 75.5 LSD 7.3 Error df 58.0 CV 7.0 R 7. No maturity dates taken. Table 33. Roundup Ready Maturity Group IV Late Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, loam). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Armor 47-R Delta Grow DG4790RR Great Heart Seed GT-477CR Steyer 480R Progeny P 4757 RY Progeny P 4900 RY NK Brand S47-K Morsoy Extra 48X REV 49A REV 48A REV 49A NK Brand S48-D Armor AR49X Delta Grow DG4880RR REV 49R Delta Grow DG4970RR GoSoy 474GTS Hornbeck HBK RY No maturity dates taken. Mississippi Agricultural and Forestry Experiment Station 3

30 Table 33 (cont.). Roundup Ready Maturity Group IV Late Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, loam). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 74A74RS Armor 49-R Delta Grow DG4935RR/STS Mycogen 5N490R Credenz CZ 4959 RY Dyna-Gro 37RY Asgrow AG USG 74B83RS USG 74D95RS Progeny P 4788 RY REV 49A Schillinger 495.RC Dyna-Gro S48RS Delta Grow DG485RR/STS U. of Missouri S Asgrow AG Delta Grow DG4755RR Great Heart Seed GT-476CR REV 47R Mycogen 5N479R REV 47R Progeny P 4850 RYS MorSoy Extra 49X Delta Grow DG4775RR/STS Great Heart Seed GT-48 CRS Croplan RC 475S Dyna-Gro S49RY Delta Grow DG4765RR/STS USG 74K95RS GoSoy 495R GoSoy 494GTS Delta Grow DG4995 RR 60.0 Morsoy Extra 47X Mean 70.6 LSD 8.8 Error df 00 CV 9. R 58.3 No maturity dates taken. Table 34. Roundup Ready Maturity Group V Early Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, loam). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG Croplan RC NK Brand S5-Y Delta Grow DG530RR Dyna-Gro S5RY REV 5A Mycogen 5N50R Armor 50-R Asgrow AG U. of Missouri S Great Heart Seed GT56CR Delta Grow DG 570 RR/STS Armor 5-R REV 5A No maturity dates taken. 4 Mississippi Soybean Variety Trials, 05

31 Table 34 (cont.). Roundup Ready Maturity Group V Early Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, loam). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Mycogen 5N5R Asgrow AG Armor AR REV 54R Asgrow AG Asgrow AG REV 55R Progeny P 50 RY Armor AR Progeny P 56 RYS Progeny P 53 RY MorSoy Extra 55X NK Brand S50-J U. of Arkansas R-89RY Schillinger 50.RC Mycogen 5N550R Delta Grow DG565RR NK Brand S55-Q U. of Arkansas R0-97RY U. of Arkansas UA 544RR REV 56R Progeny P 5333 RY USG 75J45R 7. 3 Progeny P 560 RY Dyna-Gro 3RY Dyna-Gro S56RY Progeny P 5555 RY Delta Grow DG5575RR Armor 55-R Mean 79.6 LSD 9.7 Error df 84 CV 8.9 R 53.4 No maturity dates taken. Table 35. Roundup Ready Maturity Group V Late Irrigated Soybeans (Delta Branch Experiment Station, Stoneville, loam). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 75B75R Progeny P 575 RY Asgrow AG REV 57R Dyna-Gro 39RY NK Brand S59-V NK Brand S58-Z Dyna-Gro S57RY Mean 7.7 LSD 8.4 Error df 4 CV 8. R 75.8 No maturity dates taken. Mississippi Agricultural and Forestry Experiment Station 5

32 Crop Summary CLARKSDALE IRRIGATED, DULANEY FARMS Soybean plots were planted into a stale seedbed in early May. The plots quickly emerged to a good stand. Timely irrigation allowed for sufficient soil moisture throughout the season. Harvest was completed in a timely manner without difficulties and good yields were observed at this location. Planting date: may 4 Harvest date: iv Early and IV Late Roundup Ready on September 30 V Early and V Late Roundup Ready on October 4 Soil type: sharkey clay Soil ph: Soil fertility: p=h, K=H Previous crop: rice Irrigation dates: furrow irrigated, as needed Herbicide applied:......preemergence Authority oz/a, Dual II 3 oz/a, and Gramoxone 3 oz/a on May 4 Postemergence Roundup 3 oz/a and 0.6 oz/a on July DULANEY FARMS & MATTSON FARMS Clarksdale Rainfall Summary Inches May June July August September Total Mississippi Soybean Variety Trials, 05

33 Table 36. Roundup Ready Maturity Group IV Early Irrigated Soybeans (Dulaney Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Morsoy Extra 46X /5 3 Steyer 4303R / 35 Progeny P 463 RYS /3 3 Steyer 460R /3 8 Asgrow AG /4 34 Armor 46-R /3 3 Mycogen 5N45R /4 9 Great Heart Seed GT-469CRS 83. 9/ 3 Dyna-Gro 3RY /3 30 USG 74F4RS / 34 Croplan RC / 35 Asgrow AG / 34 Great Heart Seed GT-435CR /7 30 Armor AR /4 3 Armor AR /3 8 Delta Grow DG4670RY /4 30 Dyna-Gro S46RY /3 5 Croplan RC /4 7 Credenz CZ 4590 RY / 3 Asgrow AG /0 33 NK Brand S45-V / 9 Mycogen 5N433R / 3 Dyna-Gro S43RY / 34 Progeny P 4 RY /8 6 Asgrow AG /5 8 Credenz CZ 48 RY /7 3 Asgrow AG / 9 Mycogen 5N404R 7.6 9/09 3 Progeny P 44 RY 7.3 9/7 35 Armor 43-R /6 35 Mean 79.3 LSD 8.4 Error df 58 CV 7.8 R 50.9 Table 37. Roundup Ready Maturity Group IV Late Irrigated Soybeans (Dulaney Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Delta Grow DG4790RR /7 35 Great Heart Seed GT-477CR 9.9 9/8 3 Progeny P 4757 RY 9. 9/4 34 Progeny P 4788 RY / 38 GoSoy 495R /6 3 Armor 47-R /8 37 Mycogen 5N479R /6 35 REV 47R / 8 Delta Grow DG4935RR/STS /5 3 Croplan RC 475S /6 33 NK Brand S47-K /7 3 REV 49R /7 33 Morsoy Extra 47X /6 35 Asgrow AG /8 35 Dyna-Gro S48RS /6 37 Progeny P 4850 RYS /6 35 REV 49A /4 38 Mississippi Agricultural and Forestry Experiment Station 7

34 Table 37 (continued). Roundup Ready Maturity Group IV Late Irrigated Soybeans (Dulaney Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro S49RY /7 39 Progeny P 4900 RY /9 9 Hornbeck HBK RY /8 40 Delta Grow DG4765RR/STS /6 30 USG 74K95RS 83. 9/7 3 Schillinger 495.RC 83. 9/8 40 REV 48A /6 3 Delta Grow DG4755RR /6 35 Morsoy Extra 48X /4 34 Great Heart Seed GT-476CR / 38 USG 74D95RS 8.7 9/4 3 USG 74B83RS /6 9 Delta Grow DG4880RR /6 3 Armor AR49X /8 30 REV 49A /8 3 NK Brand S48-D /30 7 Delta Grow DG4970RR /4 38 Great Heart Seed GT-48 CRS /8 3 Asgrow AG /7 30 Steyer 480R /8 30 USG 74A74RS 77. 9/6 3 MorSoy Extra 49X /9 30 REV 49A / 38 REV 47R /7 7 Armor 49-R /8 33 Delta Grow DG4775RR/STS /7 38 GoSoy 474GTS / 37 Mycogen 5N490R /8 8 Credenz CZ 4959 RY /5 33 Dyna-Gro 37RY / 3 Delta Grow DG485RR/STS /8 6 U. of Missouri S /8 GoSoy 494GTS /8 Delta Grow DG4995 RR 65. 9/7 0 Mean 8.9 LSD 7. Error df 00 CV 6.4 R 73 Table 38. Roundup Ready Maturity Group V Early Irrigated Soybeans (Dulaney Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Armor 55-R /06 9 Progeny P 5555 RY /03 8 Mycogen 5N550R /0 3 Mycogen 5N50R /30 4 Progeny P 560 RY /05 4 Progeny P 53 RY /06 43 Dyna-Gro S5RY / Great Heart Seed GT56CR /8 39 REV 55R /03 Asgrow AG /06 36 Delta Grow DG 570 RR/STS 84. 0/ 35 Progeny P 50 RY /8 9 8 Mississippi Soybean Variety Trials, 05

35 Table 38 (continued). Roundup Ready Maturity Group V Early Irrigated Soybeans (Dulaney Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 MorSoy Extra 55X /4 5 Asgrow AG /07 5 Armor AR / 37 Progeny P 56 RYS /05 36 REV 56R /08 8 NK Brand S5-Y /30 37 Dyna-Gro S56RY /03 3 REV 54R /0 7 Armor 5-R /06 3 NK Brand S55-Q /07 8 REV 5A /30 6 Asgrow AG /05 9 NK Brand S50-J /09 38 U. of Arkansas R-89RY /05 4 USG 75J45R /9 8 Progeny P 5333 RY / 0 Armor AR /08 Asgrow AG /30 37 Dyna-Gro 3RY /06 37 Armor 50-R /06 37 Delta Grow DG530RR /0 U. of Arkansas R0-97RY /0 9 Mycogen 5N5R /30 7 Asgrow AG /05 5 Delta Grow DG5575RR /07 30 REV 5A /9 3 Croplan RC /0 8 Schillinger 50.RC /0 33 Delta Grow DG565RR /06 6 U. of Missouri S /30 U. of Arkansas UA 544RR /03 Mean 78. LSD 8.8 Error df 84 CV 8.3 R 67.7 Table 39. Roundup Ready Maturity Group V Late Irrigated Soybeans (Dulaney Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Progeny P 575 RY 8.0 0/07 3 Dyna-Gro S57RY /0 6 NK Brand S58-Z /08 33 REV 57R /30 9 Dyna-Gro 39RY /07 34 USG 75B75R /06 35 NK Brand S59-V / 8 Asgrow AG /09 3 Mean 77.4 LSD 8.5 Error df 4 CV 7.6 R 48.7 Mississippi Agricultural and Forestry Experiment Station 9

36 Crop Summary CLARKSDALE NONIRRIGATED, MATTSON FARMS Plots were planted into a stale seedbed following the previous year s soybean crop. All plots quickly emerged to a stand. The plots experienced a hot and dry period during midsummer but were still able to produce respectable yields for a dryland location. All plots were harvested in a timely manner. Planting date: may Harvest date: iv Early Roundup Ready on September 8 IV Late Roundup Ready on September 5 Soil type: dubbs very fine sandy loam Soil ph: Soil fertility: p=h +, K=H + Previous crop: soybean Herbicide applied:......preemergence Authority oz/a, Dual II 3 oz/a, Gramoxone 3 oz/a, and oz/a on May Postemergence Roundup 3 oz/a and oz/a on June ; Roundup 3 oz/a and 0.6 oz/a on July DULANEY FARMS & MATTSON FARMS Clarksdale Rainfall Summary Inches May June July August September Total Mississippi Soybean Variety Trials, 05

37 Table 40. Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Mattson Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Morsoy Extra 46X /0 30 Progeny P 463 RYS /9 8 Armor 46-R /9 8 Armor 43-R /08 30 Steyer 460R / 6 Mycogen 5N45R /8 3 USG 74F4RS / 9 Croplan RC / 7 Armor AR /5 6 Delta Grow DG4670RY /9 4 NK Brand S45-V /4 6 Dyna-Gro 3RY /9 6 Great Heart Seed GT-469CRS /8 6 Armor AR /8 3 Asgrow AG /5 34 Steyer 4303R / 3 Asgrow AG /8 7 Progeny P 44 RY 54. 9/0 9 Dyna-Gro S43RY / 5 Mycogen 5N433R 5.6 9/7 8 Dyna-Gro S46RY /8 3 Asgrow AG /08 8 Credenz CZ 4590 RY /4 30 Croplan RC /03 3 Credenz CZ 48 RY /04 7 Progeny P 4 RY /09 5 Great Heart Seed GT-435CR 46. 9/04 6 Asgrow AG /3 6 Asgrow AG /0 7 Mycogen 5N404R /0 Mean 53.6 LSD 8.5 Error df 58 CV.6 R 58.8 Table 4. Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Mattson Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 REV 48A /3 8 Delta Grow DG4790RR 7.3 9/0 34 Hornbeck HBK RY / 33 NK Brand S47-K / 8 Armor 47-R /7 3 Asgrow AG / 30 Croplan RC 475S / 30 REV 47R /5 6 REV 47R / 5 Mycogen 5N479R /6 3 USG 74D95RS 66. 9/6 6 REV 49R /3 9 Morsoy Extra 47X /3 34 Dyna-Gro S48RS /0 3 REV 49A4 6. 9/3 35 Armor AR49X 6.7 9/7 30 Delta Grow DG4765RR/STS / 7 Mississippi Agricultural and Forestry Experiment Station 3

38 Table 4 (continued). Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Mattson Farms, Coahoma County). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro S49RY / 35 Morsoy Extra 48X /3 38 GoSoy 474GTS /9 3 Progeny P 4788 RY /4 7 Progeny P 4757 RY 60. 9/3 9 MorSoy Extra 49X /4 40 Mycogen 5N490R /3 34 GoSoy 494GTS /3 3 Delta Grow DG4935RR/STS /0 9 USG 74B83RS /4 9 Asgrow AG / 9 Dyna-Gro 37RY /9 6 Delta Grow DG485RR/STS / REV 49A /9 3 GoSoy 495R / 3 Delta Grow DG4755RR /4 6 USG 74K95RS / 30 Delta Grow DG4775RR/STS / 30 Steyer 480R 5.6 9/3 30 Schillinger 495.RC 5.4 9/3 37 Great Heart Seed GT-476CR /4 4 U. of Missouri S /0 7 REV 49A /9 33 NK Brand S48-D9 5. 9/5 0 USG 74A74RS / 30 Great Heart Seed GT-477CR /5 8 Credenz CZ 4959 RY /9 Delta Grow DG4970RR / 3 Armor 49-R /8 3 Great Heart Seed GT-48 CRS /4 30 Delta Grow DG4880RR / Progeny P 4900 RY /9 4 Progeny P 4850 RYS /8 8 Delta Grow DG4995 RR /4 6 Mean 57.4 LSD.4 Error df 00 CV 4.7 R 6 3 Mississippi Soybean Variety Trials, 05

39 Crop Summary BROOKSVILLE, BLACK BELT BRANCH Soil conditions during the early spring were very wet. The plots were planted in late April into a stale seedbed with adequate moisture for germination. After planting, the weather turned hot and dry at this location. After the next rainfall event, the plots finally emerged to a stand. Rainfall was not frequent or timely throughout the season. As a result, some of the varieties at this location experienced yields that were below average for this location. Planting date: april 30 Harvest date: iv Early Roundup Ready on September 6 IV Late Roundup Ready and IV Liberty Link on September 5 V Early, V Late Roundup Ready, and IV Conventional on October V Liberty Link and V Conventional on October 8 Soil type: brooksville silty clay Soil ph: Soil fertility: p=h, K=M Previous crop: corn Herbicide applied:......preemergence Authority oz/a, Dual II 3 oz/a, Gramoxone 3 oz/a, and oz/a on April 30 Postemergence Roundup Ready Roundup 3 oz/a and 0.6 oz/a on June 6 Liberty Link 30 oz/a and 0.6 oz/a on June 6 Conventional oz/a and 0.6 oz/a on June 6 Insecticide 6 oz/a on June 6; oz/a and oz/a on August 0 BLACK BELT BRANCH Brooksville Rainfall Summary Inches April May June July August September October Total Mississippi Agricultural and Forestry Experiment Station 33

40 Table 4. Maturity Group IV Conventional Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 U. of Arkansas R /7 4 U. of Arkansas UA 574HP 5.4 9/3 0 MPV 483C /7 U. of Arkansas UA 504C 4.9 9/0 9 USG Ellis /8 6 GoSoy IRENE 4.4 9/ 0 GoSoy GLIDER /07 0 U. of Missouri S /3 0 Mean 43.4 LSD 8.8 Error df 4 CV 4.3 R 83 No 3-year averages Table 43. Maturity Group V Conventional Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 U. of Missouri S / 8 U. of Missouri S /4 4 USDA-ARS JTN / 7 U. of Missouri S /8 4 U. of Arkansas UA /6 GoSoy LELAND / U. of Arkansas R /6 U. of Arkansas UA53C /3 3 U. of Arkansas R /7 0 U. of Arkansas Osage /0 Mean 47.6 LSD 7.9 Error df 8 CV.8 R 75.9 Table 44. Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Credenz CZ 4590 RY 4. 9/08 6 Delta Grow DG4670RY /04 7 Morsoy Extra 46X /06 5 Dyna-Gro 3RY /08 3 Mycogen 5N45R /0 4 Asgrow AG /8 7 Croplan RC /08 3 Dyna-Gro S43RY /30 8 Steyer 460R 36. 9/04 Armor AR /0 6 Great Heart Seed GT-469CRS /0 7 Progeny P 44 RY /3 4 Mycogen 5N433R / Mississippi Soybean Variety Trials, 05

41 Table 44 (continued). Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Steyer 4303R /9 6 Progeny P 463 RYS /8 6 Armor 46-R /0 7 Mycogen 5N404R 3. 8/0 3 Dyna-Gro S46RY /30 3 Asgrow AG / 6 Armor 43-R /30 7 USG 74F4RS /30 7 Asgrow AG / 6 Credenz CZ 48 RY 8.9 9/08 3 Armor AR / Progeny P 4 RY /30 NK Brand S45-V /8 3 Asgrow AG /3 7 Great Heart Seed GT-435CR 5. 8/7 4 Croplan RC /8 3 Asgrow AG /6 Mean 3.5 LSD 7.5 Error df 58 CV 6.9 R 53.7 Table 45. Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro S49RY /08 3 REV 48A /09 6 REV 49A /9 6 GoSoy 474GTS 5.9 9/08 9 Asgrow AG /6 33 Dyna-Gro S48RS /07 5 GoSoy 495R 5.5 9/05 30 REV 49A /4 5 MorSoy Extra 49X /7 9 USG 74D95RS 5. 9/05 5 Armor 49-R /5 7 Delta Grow DG4765RR/STS /07 30 Asgrow AG /6 8 USG 74K95RS /06 7 Delta Grow DG4790RR /09 7 Delta Grow DG4935RR/STS /09 6 Progeny P 4850 RYS /5 5 Progeny P 4788 RY /08 7 REV 47R /03 4 Armor AR49X /0 U. of Missouri S / REV 49A /3 3 Delta Grow DG4970RR /0 9 Delta Grow DG4995 RR /7 5 REV 49R /08 3 Morsoy Extra 47X /5 7 REV 47R /03 3 Great Heart Seed GT-477CR /9 9 Croplan RC 475S /07 3 Mississippi Agricultural and Forestry Experiment Station 35

42 Table 45 (continued). Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Progeny P 4757 RY 4.4 9/0 3 Armor 47-R /30 6 Mycogen 5N479R /7 5 Delta Grow DG485RR/STS /9 Morsoy Extra 48X /06 5 Delta Grow DG4775RR/STS /5 8 Schillinger 495.RC 4.0 9/8 3 Dyna-Gro 37RY /3 6 USG 74B83RS /07 3 Mycogen 5N490R 40. 9/05 4 Progeny P 4900 RY /7 4 GoSoy 494GTS / 9 Steyer 480R /06 5 Delta Grow DG4755RR /7 36 USG 74A74RS 38. 9/ 4 NK Brand S47-K /0 4 NK Brand S48-D / 7 Great Heart Seed GT-476CR /4 4 Great Heart Seed GT-48 CRS /7 4 Credenz CZ 4959 RY /07 4 Delta Grow DG4880RR /7 7 Hornbeck HBK RY /3 7 Mean 44.6 LSD 7.4 Error df 00.0 CV. R 66.3 Table 46. Roundup Ready Maturity Group V Early Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 REV 5A /09 9 Armor 55-R / 0 Delta Grow DG 570 RR/STS 54. 9/ 5 NK Brand S55-Q /3 NK Brand S5-Y /8 4 U. of Arkansas R0-97RY /3 Asgrow AG /8 3 Asgrow AG / 4 Dyna-Gro S5RY /3 9 USG 75J45R / Progeny P 56 RYS /0 9 Armor 50-R /8 7 Progeny P 53 RY /7 9 Asgrow AG / Armor AR /30 REV 55R /5 6 REV 5A / 9 Armor AR /8 5 MorSoy Extra 55X /3 Progeny P 50 RY 4.9 9/8 3 Armor 5-R /7 3 Great Heart Seed GT56CR /5 6 Asgrow AG /5 7 Schillinger 50.RC 4.9 9/3 5 REV 56R / Mississippi Soybean Variety Trials, 05

43 Table 46 (continued). Roundup Ready Maturity Group V Early Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Progeny P 560 RY / 8 Mycogen 5N550R /3 U. of Missouri S /0 7 Mycogen 5N50R /3 Delta Grow DG530RR /3 8 NK Brand S50-J /07 3 Progeny P 5333 RY / 7 Asgrow AG /5 4 Dyna-Gro S56RY /0 Dyna-Gro 3RY /9 REV 54R /3 7 Delta Grow DG565RR 34. 9/ 3 Progeny P 5555 RY / 3 Mycogen 5N5R /8 7 Delta Grow DG5575RR /9 3 U. of Arkansas R-89RY 7.9 9/3 9 Croplan RC /7 7 U. of Arkansas UA 544RR 8.4 9/3 4 Mean 4.0 LSD 8.6 Error df 4 CV. R 85.6 Table 47. Roundup Ready Maturity Group V Late Nonirrigated Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro 39RY /8 6 NK Brand S59-V /4 USG 75B75R 44. 9/ 6 REV 57R / 30 Dyna-Gro S57RY /8 3 Asgrow AG /8 8 NK Brand S58-Z /9 7 Progeny P 575 RY / Mean 4.6 LSD 7. Error df 4 CV.8 R 66.8 Mississippi Agricultural and Forestry Experiment Station 37

44 Table 48. Maturity Group IV Liberty Link Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Delta Grow DG4967LL /8 36 Dyna-Gro S49LL /8 34 Armor 49X5L /9 36 Hornbeck LL /7 35 Halo /7 3 Hornbeck HBK LL /8 30 REV 49L / 8 Delta Grow DG4977LL/STS 5.6 9/6 3 Delta Grow DG498LL/STS /7 40 Delta Grow DG4990LL /6 37 Progeny P 4930 LL /8 9 Armor 47-L /3 3 Credenz CZ 4748 LL /09 9 Delta Grow DG478LL /08 30 Progeny P 484 LLS /3 7 GoSoy 474LL /4 7 Credenz CZ 488 LL /7 34 Credenz CZ 4540LL 4.3 9/0 6 Halo /7 4 Halo /7 6 Hornbeck HBK LL /0 3 Progeny P 4560 LL /0 7 Delta Grow DG4567LL 6.6 8/ Credenz CZ 405 LL.9 8/ Credenz CZ 3945 LL 5.0 8/4 7 Mean 45.3 LSD 7. Error df 48 CV.4 R Mississippi Soybean Variety Trials, 05

45 Table 49. Maturity Group V Liberty Link Soybeans (Black Belt Branch Station, Brooksville). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 75G4L 5. 9/5 34 Credenz CZ 5445 LL 5.8 9/3 0 Credenz CZ 550 LL /8 3 GoSoy 55LL /8 9 Credenz CZ 54 LL /7 35 Delta Grow DG5067LL /7 3 Armor 5X5L /7 34 Progeny P 5460 LL /7 30 Credenz CZ 577 LL /3 7 Credenz CZ 555 LL /3 4 Delta Grow DG546LL / 33 Dyna-Gro S5LL /7 3 GoSoy 55LL 4.7 9/7 33 Armor 53-L /3 Delta Grow DG5367LL / 7 Dyna-Gro S55LS /3 GoSoy 555LL /3 3 Progeny P 544 LLS / 6 REV 55L /0 9 Delta Grow DG5467LL /0 7 Credenz CZ 547 LL /3 9 Progeny P 5960 LL /3 8 Halo /3 3 Progeny P 560 LL /7 7 Progeny P 6355 LL 7.8 0/3 0 Mean 4.4 LSD 6.4 Error df 48 CV. R 73. Mississippi Agricultural and Forestry Experiment Station 39

46 Crop Summary Soybean plots were planted no-till into the previous year s corn residue. Soil moisture was optimum for germination. All plots quickly emerged to a good stand. This location received adequate rainfall at all the critical points FALKNER, MORTON FARMS during the growing season. As a result, the plants never showed any signs of stress and excellent yields were observed. Harvest was completed in a timely manner without difficulties. Planting date: may Harvest date: iv Early Roundup Ready on September 7 IV Late Roundup Ready and IV Liberty Link on October V Early and V Late Roundup Ready and V Liberty Link on October 3 Soil type: falaya silt loam Soil ph: Soil fertility: p=m +, K=M + Previous crop: corn Fertilizer added: preplant (fall applied) 0.4 tons/a; (variable rate) 00 lb/a and 50 lb/a Herbicide applied:......preemergence Authority oz/a, Dual II 4 oz/a, and Gramoxone 3 oz/a on May Postemergence Roundup Ready Roundup 3 oz/a and 0.6 oz/a on July 8 Liberty Link 30 oz/a and 0.6 oz/a on July 8 MORTON FARMS Falkner Rainfall Summary Inches May June July August September October Total Mississippi Soybean Variety Trials, 05

47 Table 50. Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG /3 39 Armor 46-R /6 39 Dyna-Gro 3RY /0 34 Delta Grow DG4670RY /4 37 Morsoy Extra 46X / 38 Progeny P 463 RYS / 37 Croplan RC /09 40 Armor AR /5 39 Mycogen 5N45R / 33 Asgrow AG / 44 Great Heart Seed GT-469CRS 95. 9/ 40 Credenz CZ 48 RY 9.8 9/03 35 Progeny P 4 RY /06 37 Dyna-Gro S43RY /03 37 USG 74F4RS /03 43 Steyer 4303R /3 4 Credenz CZ 4590 RY /05 34 Asgrow AG /0 36 Mycogen 5N433R /06 34 Armor AR / 34 Armor 43-R /06 43 Asgrow AG /07 37 NK Brand S45-V /3 37 Steyer 460R /06 36 Dyna-Gro S46RY /06 3 Asgrow AG /06 40 Great Heart Seed GT-435CR /07 37 Progeny P 44 RY /0 38 Mycogen 5N404R /9 3 Croplan RC /05 35 Mean 9.7 LSD 8 Error df 58 CV 6.3 R 78.9 Table 5. Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 74K95RS 3.5 9/7 38 Asgrow AG /6 40 Asgrow AG /5 38 Dyna-Gro S48RS /6 4 REV 47R /5 37 REV 49A /9 34 Mycogen 5N479R / 4 Great Heart Seed GT-477CR /0 33 Delta Grow DG4765RR/STS /7 37 REV 48A /9 33 NK Brand S48-D /7 36 Croplan RC 475S /4 4 Delta Grow DG4790RR /5 35 Morsoy Extra 47X /4 37 Progeny P 4788 RY /4 40 Great Heart Seed GT-476CR /09 3 Mississippi Agricultural and Forestry Experiment Station 4

48 Table 5 (continued). Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Progeny P 4757 RY 05. 9/5 3 REV 47R /09 36 Schillinger 495.RC /0 37 Morsoy Extra 48X / 38 Armor 47-R /0 34 NK Brand S47-K /5 35 Progeny P 4850 RYS /6 3 Dyna-Gro S49RY /8 39 Delta Grow DG4970RR /8 48 Delta Grow DG4755RR / 35 Great Heart Seed GT-48 CRS /5 3 GoSoy 495R 0. 9/7 38 Hornbeck HBK RY /5 40 REV 49A /6 3 REV 49R / 3 USG 74B83RS /6 3 REV 49A /5 33 Delta Grow DG4880RR /9 35 USG 74A74RS /6 36 Armor 49-R /7 37 Delta Grow DG4775RR/STS /5 3 Progeny P 4900 RY /9 33 Mycogen 5N490R / 38 U. of Missouri S /9 6 USG 74D95RS /9 44 Delta Grow DG4935RR/STS 95. 9/5 38 Delta Grow DG485RR/STS /7 3 Delta Grow DG4995 RR 9.9 9/9 5 Steyer 480R 9.3 9/5 33 Armor AR49X /7 35 Dyna-Gro 37RY /08 37 GoSoy 474GTS /6 4 GoSoy 494GTS /8 8 MorSoy Extra 49X /06 38 Credenz CZ 4959 RY /8 33 Mean 0. LSD 0.4 Error df 00.0 CV 7.6 R 58.8 Table 5. Roundup Ready Maturity Group V Early Nonirrigated Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG /9 4 Dyna-Gro S56RY /4 37 NK Brand S55-Q /5 4 3 Armor AR / 39 REV 5A /7 33 Armor 55-R / 37 Mycogen 5N550R /5 4 REV 56R /0 40 MorSoy Extra 55X / 33 Dyna-Gro S5RY /9 36 Progeny P 5555 RY /3 30 Asgrow AG / 37 4 Mississippi Soybean Variety Trials, 05

49 Table 5 (continued). Roundup Ready Maturity Group V Early Nonirrigated Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro 3RY / 37 Mycogen 5N5R /9 36 USG 75J45R 0. 9/3 37 U. of Arkansas R0-97RY / 30 Delta Grow DG5575RR /5 4 Delta Grow DG530RR /9 30 Progeny P 50 RY 0.0 9/3 37 Progeny P 5333 RY / Armor 5-R /8 39 Armor 50-R /8 40 Croplan RC /7 43 Progeny P 53 RY /5 47 Mycogen 5N50R /6 4 Delta Grow DG565RR 96. 9/4 3 NK Brand S5-Y /8 46 Progeny P 560 RY /4 3 Delta Grow DG 570 RR/STS 9.5 9/ 45 Great Heart Seed GT56CR /6 44 Asgrow AG /7 35 U. of Missouri S /9 9 U. of Arkansas UA 544RR 9.5 9/ 9 REV 55R / 5 REV 54R / 5 NK Brand S50-J /5 45 Asgrow AG /8 3 REV 5A /4 39 Armor AR / 45 U. of Arkansas R-89RY / 8 Asgrow AG /7 46 Schillinger 50.RC 8.8 9/0 3 Progeny P 56 RYS /9 45 Mean 97.9 LSD 9. Error df 84 CV 6.9 R 7.8 Table 53. Roundup Ready Maturity Group V Late Nonirrigated Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro S57RY /6 35 USG 75B75R 3.7 9/6 8 NK Brand S59-V /8 33 Dyna-Gro 39RY /8 40 Progeny P 575 RY 0.0 9/7 40 NK Brand S58-Z /0 36 REV 57R /6 40 Asgrow AG /7 9 Mean 06. LSD 8. Error df 4 CV 5.3 R 65. Mississippi Agricultural and Forestry Experiment Station 43

50 Table 54. Maturity Group IV Liberty Link Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro S49LL / 46 Progeny P 4930 LL 5.6 9/ 4 Armor 49X5L 3. 9/0 45 Progeny P 484 LLS 0.8 9/3 48 Hornbeck HBK LL /9 44 REV 49L /0 39 Delta Grow DG4990LL /8 45 Delta Grow DG4967LL /0 44 Hornbeck LL / Credenz CZ 4540LL 9.4 9/6 37 Armor 47-L /3 4 3 Halo /6 3 Delta Grow DG4977LL/STS /0 49 Delta Grow DG498LL/STS /0 60 Halo /0 4 3 Delta Grow DG478LL /4 40 Delta Grow DG4567LL /3 3 Credenz CZ 4748 LL 8.0 9/0 38 GoSoy 474LL /3 4 3 Credenz CZ 405 LL / 35 Halo /5 35 Progeny P 4560 LL /4 36 Credenz CZ 488 LL 7.5 9/6 39 Hornbeck HBK LL /5 5 3 Credenz CZ 3945 LL / 3 Mean 90. LSD 4. Error df 48 CV.4 R Mississippi Soybean Variety Trials, 05

51 Table 55. Maturity Group V Liberty Link Soybeans (Morton Farms, Falkner). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Progeny P 6355 LL 4.6 9/8 38 Dyna-Gro S5LL / 48 GoSoy 55LL 0.6 9/ 50 Credenz CZ 577 LL 00. 9/5 46 Credenz CZ 550 LL / 45 Delta Grow DG546LL /3 54 Credenz CZ 5445 LL /3 3 GoSoy 555LL /5 39 Progeny P 544 LLS 97. 9/6 39 Delta Grow DG5067LL 97. 9/8 50 Armor 53-L / 4 GoSoy 55LL 96. 9/ USG 75G4L /9 49 Credenz CZ 555 LL 9.6 9/4 64 Armor 5X5L 9.0 9/0 45 Credenz CZ 547 LL 9.3 9/ 3 Progeny P 5460 LL / 46 Delta Grow DG5467LL / Credenz CZ 54 LL /9 49 Halo /4 35 Dyna-Gro S55LS /5 39 Delta Grow DG5367LL / REV 55L /5 34 Progeny P 560 LL /3 7 Progeny P 5960 LL /5 30 Mean 93.5 LSD Error df 48 CV 9.4 R 6.9 Mississippi Agricultural and Forestry Experiment Station 45

52 Crop Summary RAYMOND, BROWN LOAM BRANCH Soybean plots were initially planted on April 4, but heavy rains immediately after planting resulted in poor stands. After the initial plant stand was determined to be inadequate, the plots were replanted on May 8. The second planting quickly emerged to a stand. High temperatures persisted through the majority of the growing season. Harvest was completed in a timely manner, but yields observed were below average for this location. Planting date: initial planting, April 4; Replant, May 8 Harvest date: iv Early Roundup Ready on September 4 IV Late, V Early, and V Late Roundup Ready on October 6 Soil type: loring silt loam Soil ph: Soil fertility: p=h, K=L Previous crop: soybean Herbicide applied:......preemergence Authority oz/a, Dual II Magnum 4 oz/a, and Gramoxone 3 oz/a on May 8 Postemergence Roundup 3 oz/a on July ; Roundup 3 oz/a on July 9 Insecticide 6.4 oz/a on July 9; oz/a on July ; and oz/a and oz/a on August 3 BROWN LOAM BRANCH Raymond Rainfall Summary Inches April May June July August September October Total Mississippi Soybean Variety Trials, 05

53 Table 56. Roundup Ready Maturity Group IV Early Nonirrigated Soybeans (Brown Loam Branch, Raymond). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG / 30 Mycogen 5N45R /8 5 Mycogen 5N433R /4 7 Dyna-Gro S43RY /8 7 Steyer 460R /07 Progeny P 463 RYS /4 8 Steyer 4303R /0 8 Armor AR /8 30 USG 74F4RS /5 3 Croplan RC / 8 Credenz CZ 48 RY /07 30 Progeny P 44 RY /0 5 Delta Grow DG4670RY /4 9 Dyna-Gro 3RY /8 9 Asgrow AG /6 0 Asgrow AG /0 8 Morsoy Extra 46X / 5 NK Brand S45-V /6 4 Great Heart Seed GT-469CRS /4 3 Dyna-Gro S46RY / 3 Armor AR /4 4 Asgrow AG /8 9 Armor 46-R /4 34 Armor 43-R /0 7 Asgrow AG /0 5 Credenz CZ 4590 RY 44. 9/8 6 Progeny P 4 RY / 5 Croplan RC /0 Great Heart Seed GT-435CR 4.0 8/6 6 Mycogen 5N404R 3.6 8/3 Mean 55.4 LSD 0. Error df 58 CV 3.5 R 79.3 Table 57. Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Brown Loam Branch, Raymond). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 74B83RS /4 6 Progeny P 4850 RYS / 3 GoSoy 495R 6.9 9/8 8 MorSoy Extra 49X /4 6 Steyer 480R 6.3 9/5 7 Morsoy Extra 47X / 8 Armor 49-R /5 9 Delta Grow DG485RR/STS /4 7 Delta Grow DG4765RR/STS / 8 Asgrow AG / 3 Mycogen 5N479R / 30 USG 74D95RS /4 7 Delta Grow DG4935RR/STS 56. 9/5 3 USG 74K95RS /8 3 Great Heart Seed GT-48 CRS /4 7 Progeny P 4757 RY / 30 Mississippi Agricultural and Forestry Experiment Station 47

54 Table 57 (continued). Roundup Ready Maturity Group IV Late Nonirrigated Soybeans (Brown Loam Branch, Raymond). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Croplan RC 475S /8 35 REV 49A / 7 Mycogen 5N490R 5. 9/ 6 Dyna-Gro S49RY /4 30 Armor 47-R /5 3 Asgrow AG / 8 Dyna-Gro 37RY /4 6 Delta Grow DG4790RR /8 7 Delta Grow DG4775RR/STS /8 30 USG 74A74RS 48. 9/ 7 Dyna-Gro S48RS /8 35 REV 48A /5 4 REV 49A / 7 Credenz CZ 4959 RY / 5 U. of Missouri S /4 6 Armor AR49X 46. 9/4 4 Delta Grow DG4755RR /5 5 NK Brand S47-K /4 3 REV 49A /5 3 REV 47R / 30 REV 47R /5 6 Morsoy Extra 48X /4 5 Progeny P 4900 RY /4 5 REV 49R /8 30 Great Heart Seed GT-477CR 39. 9/ 7 Delta Grow DG4880RR /5 3 Delta Grow DG4970RR /5 6 GoSoy 474GTS /5 8 Progeny P 4788 RY /4 5 NK Brand S48-D / 6 Great Heart Seed GT-476CR / 4 Schillinger 495.RC /4 7 Hornbeck HBK RY / 30 GoSoy 494GTS 5.8 9/5 7 Delta Grow DG4995 RR 4.8 9/ 9 Mean 48.4 LSD 8 Error df 00 CV. R 89. Table 58. Roundup Ready Maturity Group V Early Nonirrigated Soybeans (Brown Loam Branch, Raymond). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Asgrow AG /5 9 NK Brand S5-Y /8 8 Armor AR /5 8 Progeny P 560 RY /8 4 Dyna-Gro S56RY /8 7 U. of Arkansas R-89RY /8 Progeny P 56 RYS /5 Asgrow AG /8 Asgrow AG / REV 5A /5 5 NK Brand S55-Q /5 9 Asgrow AG / Mississippi Soybean Variety Trials, 05

55 Table 58 (continued). Roundup Ready Maturity Group V Early Nonirrigated Soybeans (Brown Loam Branch, Raymond). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 Dyna-Gro 3RY / 7 Delta Grow DG 570 RR/STS /5 7 Croplan RC /5 8 Progeny P 5555 RY / 0 MorSoy Extra 55X / 6 Armor 50-R / 5 NK Brand S50-J / Great Heart Seed GT56CR / Progeny P 53 RY / 8 Mycogen 5N5R /8 4 Mycogen 5N550R /5 0 U. of Missouri S /5 0 Armor 5-R / 9 REV 55R /5 6 REV 56R /5 3 Asgrow AG /5 5 REV 54R /5 4 Schillinger 50.RC /8 4 U. of Arkansas R0-97RY / 7 U. of Arkansas UA 544RR 37. 9/ 0 Delta Grow DG530RR / 0 Delta Grow DG565RR 36. 9/5 4 Dyna-Gro S5RY /5 6 Progeny P 50 RY / 6 Armor 55-R /5 5 REV 5A / Mycogen 5N50R /8 USG 75J45R 3.5 9/8 3 Armor AR /8 9 Delta Grow DG5575RR /5 0 Progeny P 5333 RY /8 7 Mean 4.0 LSD 9 Error df 84 CV 5.7 R 8. Table 59. Roundup Ready Maturity Group V Late Nonirrigated Soybeans (Brown Loam Branch, Raymond). Brand Variety Yield Maturity date Plant height Lodging score 05 -yr. avg. 3-yr. avg. bu/a bu/a bu/a in -5 USG 75B75R /4 9 Progeny P 575 RY 4.7 9/4 NK Brand S59-V /5 0 Dyna-Gro S57RY /4 0 NK Brand S58-Z4 3. 9/4 8 REV 57R /4 Asgrow AG /5 7 Dyna-Gro 39RY /4 8 Mean 34 LSD 9.8 Error df 4 CV 0. R 68.7 Mississippi Agricultural and Forestry Experiment Station 49

56 Data Not Reported OLIVE BRANCH, TODD WILLIAMS FARM Data Not Reported Soybean harvest data and variety performance are not published from Steele Farms near Longwood due to accidental aerial applications of herbicide and a harvest aid. No Liberty Link or conventional soybean data are available because of an accidental application of glyphosate to the field that contained the variety trial. This herbicide LONGWOOD, STEELE FARMS Soybean harvest data and variety performance are not published from Todd Williams Farm near Olive Branch because the trial was not planted in 05. The frequency and volume of rainfall that occurred in the spring in north Mississippi did not allow the opportunity to plant a soybean trial at this location until after the optimum recommended planting window. It was determined that it was best not to plant this location because it was not possible to ensure all entries would have enough time to obtain full yield potential. application killed any soybeans that were not Roundup Ready. Also, a harvest aid was applied to the adjacent field before harvest, prematurely desiccating some of the remaining Roundup Ready plots. As a result of the premature desiccation, the Roundup Ready soybean data are valid for this location. 50 Mississippi Soybean Variety Trials, 05

57 05 SOYBEAN VARIETY TRIAL STEM CANKER REPORT All of the entries in the 05 Mississippi State University variety trials were evaluated for their reaction to the stem canker fungus. Trials consisted of single rows of each cultivar planted in 0-foot plots and replicated four times. Within each row, a total of eight plants were inoculated with a single toothpick that contained the fungus that causes stem canker. Plants were inoculated approximately eight weeks after planting. Evaluations of stem canker severity were conducted between R6 and R6.5 by observing the stem of each inoculated plant for the presence of a canker. Observations of each variety were conducted using a modified 0 9 scale. Information in each table (Tables 60 67) contains the analyzed stem canker rating as an average of all inoculated plants within a single plot. In addition, each cultivar includes a stem canker designation: R = resistant, MR = moderately resistant, MS = moderately susceptible, and S = susceptible. In field situations where stem canker has been observed, plant cultivars that have been observed to contain resistance to stem canker. In addition, keep in mind that observations of stem canker tend to be more obvious when the environment is conducive for disease development. Therefore, over time, and in years when the environment may not be conducive for the development of stem canker, it is possible that stem canker designations could change between years. Table 60. Field Evaluation of Maturity Group IV Conventional Soybean Cultivars for Resistance to Stem Canker, 05. Cultivar Stem canker rating, Cultivar designation 3 J (susceptible check) 6.75 a MS Go Soy b R Go Soy Glider 0.44 b R Go Soy Irene 0.03 b R U. of Arkansas R a S U. of Arkansas UA 504C (R05-339) 0.00 b R U. of Arkansas UA 574HP (R ) 0.00 b R U. of Missouri S a MS USG Ellis 0.00 b R LSD (0.05).8 CV (%) 80.9 P-value for F-statistic <0.000 Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. Table 6. Disease Ratings of Maturity Group V Conventional Soybean Cultivars to Stem Canker, 05. Cultivar Stem canker rating, Cultivar designation 3 J (susceptible check) 5.7 ab MS Go Soy Leland 5.69 ab MS U. of Missouri S d R U. of Missouri S ab MS U. of Missouri S a MS U. of Arkansas OSAGE 0.75 d R U. of Arkansas R bc MR U. of Arkansas R d R U. of Arkansas UA 53C 0.3 d R U. of Arkansas UA d R USDA-ARS JTN cd R LSD (0.05). CV (%) 49.6 P-value for F-statistic <0.000 Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. Mississippi Agricultural and Forestry Experiment Station 5

58 Table 6. Field Evaluation of Maturity Group IV Early Soybean Cultivars for Resistance to Stem Canker, 05. Cultivar Stem Canker Cultivar Cultivar Stem Canker Cultivar rating, designation 3 rating, designation 3 Dyna-Gro 39RY43 (susceptible check) 5.60 a MS Dyna-Gro S43RY a-f MR Armor 46-R def R Dyna-Gro S46RY85.66 b-f R Armor 43-R5 5.6 ab MS Great Heart Seed GT-435CR.03 def R Armor AR def R Great Heart Seed GT-469CRS.66 b-f R Armor AR f R MorSoy Extra 46X ef R Asgrow AG a-d MS Mycogen 5N404R 3.44 a-f MR Asgrow AG a-d MS Mycogen 5N433R 0.00 f R Asgrow AG a-d MS Mycogen 5N45R.63 c-f R Asgrow AG f R NK S45-V8.03 def R Asgrow AG f R Progeny Ag P 4RY 3. a-f MR Credenz CZ 48 RY 4.8 abc MS Progeny Ag P 44RY 3.85 a-e MR Credenz CZ 4590 RY 0.57 ef R Progeny Ag P 463RYS 0.63 ef R Croplan RC44.4 c-f R Steyer 4303R 0.63 ef R Croplan RC c-f R Steyer 460R.53 c-f R Delta Grow DG 4670RY 0. f R USG 74F4RS.6 a-f R Dyna-Gro 3RY f R LSD (0.05) 3.5 CV (%) 7. P-value for F-statistic Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. Table 63. Field Evaluation of Maturity Group IV Late Soybean Cultivars for Resistance to Stem Canker, 05. Cultivar Stem Canker Cultivar Cultivar Stem Canker Cultivar rating, designation 3 rating, designation 3 Dyna-Gro 39RY43 (susceptible check) 4.5 b MR Hornbeck HBK RY fg R Armor 49X 0.03 g R MorSoy Extra 47X 0.47 fg R Armor 47-R70.6 c-f R MorSoy Extra 48X0 0.6 g R Armor 49-R fg R MorSoy Extra 49X fg R Asgrow AG efg R Mycogen 5N479R 0.85 fg R Asgrow AG fg R Mycogen 5N490R (MYCX54480NR) 0.7 fg R Credenz CZ 4959 RY 0.03 g R NK S47-K5.5 efg R Croplan RC475S 0.3 g R NK S48-D fg R Delta Grow DG 4755RR.8 efg R Progeny Ag P 4757RY 0.35 fg R Delta Grow DG 4765RR/STS 0.60 fg R Progeny Ag P 4788RY.69 d-g R Delta Grow DG 4775RR/STS 0.56 fg R Progeny Ag P 4850RYS 0.63 fg R Delta Grow DG 4790 RR 3.9 b-e MR Progeny Ag P 4900RY.6 fg R Delta Grow DG 485RR/STS 0.5 fg R Schillinger 495.RC 0.38 fg R Delta Grow DG 4880RR 0.3 g R Steyer 480R 0.35 fg R Delta Grow DG 4935 RR/STS.44 efg R Terral REV 47R34.85 d-g R Delta Grow DG 4970RR 0.3 fg R Terral REV 47R bcd MR Delta Grow DG 4995 RR 4.04 bc MR Terral REV 48A fg R Dyna-Gro 37RY a MS Terral REV 49A4 0.9 fg R Dyna-Gro S48RS fg R Terral REV 49A55.63 d-g R Dyna-Gro S49RY fg R Terral REV 49A fg R Go Soy 474GTS(MPG 474).44 efg R Terral REV 49R fg R Go Soy 494GTS 4.3 b MR U. of Missouri S bc MR Go Soy 495R 0.56 fg R USG 74B83RS (74B83R) 0.38 fg R Great Heart Seed GT-476CR 3.44 bcd MR USG 74D95RS 0.97 fg R Great Heart Seed GT-477CR 0.94 fg R USG 74K95RS.07 fg R Great Heart Seed GT-48CRS 0.69 fg R USG 74A74RS 0.7 fg R LSD (0.05).0 CV (%) 3.9 P-value for F-statistic <0.000 Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. 5 Mississippi Soybean Variety Trials, 05

59 Table 64. Disease Ratings of Maturity Group V Early Soybean Cultivars to Stem Canker, 05. Cultivar Stem Canker Cultivar Cultivar Stem Canker Cultivar rating, designation 3 rating, designation 3 Dyna-Gro 39RY43 (susceptible check) 3.35 b-i MR Mycogen 5N5R (MYCX545NR).9 e-k R Armor 50-R(AX4500).44 g-k R Mycogen 5N550R 0.03 k R Armor 5-R k R NK S50-J7 7.6 a S Armor AR k R NK S5-Y.50 g-k R Armor AR g-k R NK S55-Q3 0.6 k R Armor 55-R k R Progeny Ag P 50RY 3.3 b-j MR Asgrow AG533.9 g-k R Progeny Ag P 53RY 5.63 ab MS Asgrow AG k R Progeny Ag P 56RYS 0.94 h-k R Asgrow AG e-k R Progeny Ag P 5333RY 4.9 abc MR Asgrow AG c-k R Progeny Ag P 5555RY 0.38 jk R Asgrow AG h-k R Progeny Ag P 560RY 4.35 a-f MR Croplan RC508.5 g-k R REV 5A56.00 g-k R Delta Grow 58 RR 5.9 ab MS REV 5A a-e MR Delta Grow DG 570 RR/STS 0. k R REV 54R84.9 e-k R Delta Grow DG 530RR.44 g-k R REV 55R53.60 f-k R Delta Grow DG 5575 RR.97 d-k R REV 56R h-k R Delta Grow DG 565 RR 3.78 b-g MR SCHILLINGER 50.RC 0.69 h-k R Dyna-Gro S5RY75.85 e-k R U. of Arkansas R0-97RY.03 g-k R Dyna-Gro S56RY84.75 c-k R U. of Arkansas R-89RY 0.60 ijk R Great Heart Seed GT-56CR.85 e-k R U. of Arkansas UA 544RR (R04-68RR) 3.44 b-h MR MorSoy Extra 55X75.6 g-k R U. of Missouri S a-d MR Mycogen 5N50R (MYCX54490NR).00 g-k R USG 75J45R 0.8 h-k R LSD (0.05).8 CV (%) 0.3 P-value for F-statistic <0.000 Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. Table 65. Disease Ratings of Maturity Group V Late Soybean Cultivars to Stem Canker, 05. Cultivar Stem canker rating, Cultivar designation 3 Dyna-Gro 39RY43 (susceptible check).35 R Asgrow AG R Dyna-Gro 39RY57.9 R Dyna-Gro S57RY MR NK S58-Z MR NK S59-V9 6.9 MS Progeny Ag P 575RY.97 R REV 57R.38 R USG 75B75R 0. R LSD (0.05) 5. CV (%) 6.6 P-value for F-statistic Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. Mississippi Agricultural and Forestry Experiment Station 53

60 Table 66. Disease Ratings of Maturity Group IV Liberty Link Soybean Cultivars to Stem Canker, 05. Cultivar Stem Canker Cultivar Cultivar Stem Canker Cultivar rating, designation 3 rating, designation 3 LL Check 0.00 R Delta Grow DG 4990 LL 0.60 R Armor 47-L0 0.8 R Dyna-Gro S49LL R Armor 49X5L 0.03 R Go Soy 474 LL 0.00 R Credenz CZ 3945 LL 0.3 R Halo R Credenz CZ 405 LL 0.00 R Halo R Credenz CZ 4540 LL 0.00 R Halo R Credenz CZ 4748 LL 0.03 R Hornbeck HBK LL R Credenz CZ 488 LL 0.00 R Hornbeck HBK LL R Delta Grow DG 4567 LL.8 R Hornbeck HBK LL R Delta Grow DG 478 LL 0.35 R Progeny Ag P 4560 LL 0.0 R Delta Grow DG 4967 LL 0.3 R Progeny Ag P 484 LLS 0.00 R Delta Grow DG 4977 LL/STS 0.00 R Progeny Ag P 4930 LL 0.30 R Delta Grow DG 498 LL/STS 0.00 R Terral REV 49L R LSD (0.05) 0.8 CV (%) P-value for F-statistic Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. Table 67. Disease Ratings of Maturity Group V Liberty Link Soybean Cultivars to Stem Canker, 05. Cultivar Stem Canker Cultivar Cultivar Stem Canker Cultivar rating, designation 3 rating, designation 3 LL Check 0.4 R Delta Grow DG 5467 LL 0.4 R Armor R Dyna-Gro S5LL R Armor 5X5L 0.00 R Dyna-Gro S55LS R Armor 53-L R Go Soy 55LL 0.06 R Credenz CZ 547 LL 0.03 R Go Soy 55LL 0.06 R Credenz CZ 550 LL 0.00 R Go Soy 555LL 0.00 R Credenz CZ 55 LL 0.03 R Halo R Credenz CZ 54 LL 0.03 R Progeny Ag P 560 LL 0.03 R Credenz CZ 5445 LL 0.03 R Progeny Ag P 544 LLS 0.0 R Credenz CZ 555 LL 0.03 R Progeny Ag P 5460 LL 0.3 R Credenz CZ 577 LL 0.00 R Progeny Ag P 5960 LL 0.00 R Delta Grow DG 5067 LL 0.00 R Progeny Ag P 6355 LL 0.06 R Delta Grow DG 5367 LL 0.8 R REV 55L R Delta Grow DG 546 LL 0.06 R USG 75G4L 0.3 R LSD (0.05) 0.6 CV (%) 39.5 P-value for F-statistic Stem Canker Reaction eight plants per plot were inoculated with infested toothpicks. Ratings were given by individual plant reaction using a modified 0 9 scale based on lesion severity and are presented as the average for the eight plants. Where a lesion did not appear, a rating of 0 (Resistant) was assessed. Ratings were assessed based on the presence of a lesion whereby a reaction that produced a visible lesion that did not expand up the length of the stem was assessed as a. Dead plants with lesions that extended up most of the plant s length received a score of 9. Means followed by the same letter(s) within a column are not significantly different according to Fisher s Protected LSD (P=0.05). 3 By using the Mean Disease Rating, a standardized designation system is as follows: = Resistant, 3 = Moderately Resistant, 5 = Moderately Susceptible, and 7 = Susceptible. 54 Mississippi Soybean Variety Trials, 05

61 PLANT CHARACTERISTICS Table 68. Plant Characteristics of Maturity Group IV Conventional Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 USG Ellis White Grey Tan Buff 3375 D 4.9 U. of Arkansas UA 504C Purple Tawny Tan Black U. of Arkansas R Purple Tawny Tan Black U. of Arkansas UA 574HP Purple Tawny Tan Brown U. of Missouri S-379 White Grey Tan Imp. black Go Soy GLIDER White Lt. tawny Tan Black 369 I 4.7 Go Soy 483C White Lt. tawny Tan Black 40 I 4.8 Go Soy IREANE White Grey Tan Buff 344 D 4.9 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 4.0 is very early in Group IV, while 4.9 is very late in Group IV. Table 69. Plant Characteristics of Maturity Group V Conventional Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 USDA-ARS JTN-50 Purple Tawny Black U. of Arkansas OSAGE Purple Grey Tan Imp. black U. of Arkansas UA 56 Purple Grey Tan Imp. black U. of Arkansas UA 53C Purple Grey Tan Imp. black U. of Arkansas R Purple Grey Tan U. of Arkansas R0-30 White Grey Tan Buff U. of Missouri S-04 White Tawny Tan Black 3584 D 5. U. of Missouri S-705 White Tawny Tan Black 3797 D 5.3 U. of Missouri S-6653 White Grey Tan Buff 30 D 5. Go Soy LELAND White Tawny Tan Black 37 D 5.0 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 5.0 is very early in Group V, while 5.9 is very late in Group V. Table 70. Plant Characteristics of Maturity Group IV Early Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Credenz CZ 48 RY Purple Lt. tawny Brown Black Credenz CZ 4590 RY Purple Tawny Tan Black Asgrow AG435 White Lt. tawny Brown Black 860 I 4. Asgrow AG43 Purple Lt. tawny Tan Black 700 I 4. Asgrow AG4336 Purple Lt. tawny Brown Black 850 I 4.3 Asgrow AG4533 Purple Lt. tawny Brown Black 850 I 4.5 Asgrow AG463 Purple Lt. tawny Brown Black 90 I 4.6 USG 74F4RS Purple Lt. tawny Brown Black 500 I 4. Progeny Ag P 4RY Purple Grey Tan Imp. black Progeny Ag P 44RY Purple Lt. tawny Tan Progeny Ag P 463RYS White Grey Brown Buff Mycogen 5N404R Purple Grey Brown Imp. black Mycogen 5N433R Purple Tawny Brown Black Mycogen 5N45R Purple Lt. tawny Brown Black Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 4.0 is very early in Group IV, while 4.9 is very late in Group IV. Mississippi Agricultural and Forestry Experiment Station 55

62 Table 70 (continued). Plant Characteristics of Maturity Group IV Early Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Morsoy Extra 46X95 White Lt. tawny Brown Black Dyna-Gro S43RY95 Purple Tawny Brown Black 748 I 4.3 Dyna-Gro 3RY45 Purple Lt. tawny Brown Black 898 I 4.5 Dyna-Gro S46RY85 Purple Grey Brown Imp. black 864 I 4.6 Delta Grow DG 4670RY Purple Lt. tawny Brown Black 3037 I 4.6 Croplan RC454 Purple Lt. tawny Brown Black 900 I 4.5 Steyer Seeds 4303R Purple Lt. tawny Brown Black Steyer Seeds 460R Purple Grey Brown Imp. black Armor 43-R Armor AR Armor AR Armor 46-R NK Brand S45-V8 Brand White Tawny Brown Brown Great Heart Seed GT-469CRS White Grey Brown Buff 976 I 4.6 Great Heart Seed GT-435CR Purple Lt. tawny Tan Black 668 I 4.3 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 4.0 is very early in Group IV, while 4.9 is very late in Group IV. Table 7. Plant Characteristics of Maturity Group IV Late Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Hornbeck HBK RY47 Purple Lt. tawny Brown Black Credenz CZ 4959 RY Purple Lt. tawny Tan Black Asgrow AG4835 Purple Lt. tawny Brown Black 390 I 4.8 Asgrow AG4934 Purple Lt. tawny Brown Black 800 I 4.9 USG 74A74RS Purple Lt. tawny Tan Black 84 I 4.7 USG 74B83RS White Lt. tawny Tan Black 909 I 4.8 USG 74D95RS Purple Grey Tan Imp. black 608 I 4.9 USG 74K95RS Purple Grey Tan Imp. black 3009 D 4.9 Progeny Ag P 4757RY White Lt. tawny Brown Black Progeny Ag P 4788RY Purple Lt. tawny Brown Black Progeny Ag P 4850RYS Purple Grey Tan Imp. black Progeny Ag P 4900 Purple Lt. tawny Tan Black Mycogen 5N479R Purple Grey Tan Imp. black Mycogen 5N490R Purple Lt. tawny Tan Black MorSoy Extra 47X Purple Grey Tan Imp. black MorSoy Extra 48X0 Purple Lt. tawny Brown Black MorSoy Extra 49X85 Purple Lt. tawny Tan Black U. of Missouri S-0337 Purple Tawny Tan Black 3843 D 4.9 REV 47R53 Purple Tawny Brown Black 3043 I 4.7 REV 47R34 Purple Lt. tawny Brown Black 963 I 4.7 REV 48A46 Purple Tawny Tan Black 70 I 4.9 REV 49R94 Purple Tawny Brown Black 886 I 4.9 REV 49A55 White Grey Brown Buff 303 I 4.9 REV 49A75 Purple Tan Brown Black 983 I 4.9 REV 49A4 White Lt. tawny Brown Black 3049 I 4.9 Go Soy 495R Purple Grey Tan Imp. black 3083 I 4.9 Go Soy 474GTS Purple Tawny Tan Black 3060 I 4.7 Go Soy 494GTS Purple Tawny Tan Black 360 I 4.9 Schillinger 495.RC Purple Lt. tawny Brown Black 360 I 4.9 Dyna-Gro 37RY47 Purple Lt. tawny Tan Black 690 I 4.7 Dyna-Gro S48RS53 Purple Grey Tan Imp. black 886 I 4.8 Dyna-Gro S49RY5 Purple Grey Brown Imp. black 336 I 4.9 Delta Grow DG 4755RR Purple Lt. tawny Brown Black 638 I 4.7 Delta Grow DG 4765RR/STS Purple Grey Tan Imp. black 3064 I 4.7 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 4.0 is very early in Group IV, while 4.9 is very late in Group IV. 56 Mississippi Soybean Variety Trials, 05

63 Table 7 (continued). Plant Characteristics of Maturity Group IV Late Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Delta Grow DG 4775RR/STS Purple Lt. tawny Brown Black 39 I 4.7 Delta Grow DG 4790RR White Lt. tawny Brown Black 84 I 4.7 Delta Grow DG 485RR/STS White Lt. tawny Tan Black 34 I 4.8 Delta Grow DG 4935RR/STS Purple Grey Tan Imp. black 938 I 4.9 Delta Grow DG 4970RR Purple Tawny Tan Black 679 I 4.9 Delta Grow DG 4880RR White Tawny Brown Black 3409 I 4.8 Delta Grow DG 4995RR Purple Tawny Tan Black 3753 I 4.9 Croplan RC475S Purple Grey Tan Black 960 I 4.7 Steyer Seeds 480R White Lt. tawny Tan Black Armor 47-R Armor 49X Armor 49-R NK Brand S45-V8 White Lt. tawny Tan Black NK Brand S48-D9 White Lt. tawny Tan Black Great Heart Seed GT-477CR White Lt. tawny Brown Black 880 I 4.7 Great Heart Seed GT-476CR Purple Lt. tawny Brown Black 306 I 4.7 Great Heart Seed GT-48CRS Purple Lt. tawny Tan Black 940 I 4.8 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 4.0 is very early in Group IV, while 4.9 is very late in Group IV. Table 7. Plant Characteristics of Maturity Group V Early Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Asgrow AG533 Purple Lt. tawny Brown Black 340 I 5. Asgrow AG533 Purple Tawny Tan Black 30 I 5.3 Asgrow AG5335 White Lt. tawny Tan Black 800 I 5.3 Asgrow AG5533 Purple Grey Tan Imp. black 3000 D 5.5 Asgrow AG5535 White Tawny Tan Black 3000 D 5.5 USG 75J45R Purple Tawny Tan Brown U. of Arkansas UA 544RR White Grey Tan Buff U. of Arkansas R-89RY White Grey Tan Buff U. of Arkansas R0-97RY Purple Grey Tan Imp. black Progeny Ag P 53RY Purple Lt. tawny Brown Black Progeny Ag P 56RYS Purple Lt. tawny Tan Black Progeny Ag P 5333RY White Grey Tan Buff Progeny Ag P 5555RY Purple Tawny Tan Brown Progeny Ag P 560RY Purple Grey Tan Imp. black Mycogen 5N50R Purple Grey Brown Imp. black Mycogen 5N5R White Lt. tawny Tan Brown Mycogen 5N550R Purple Tawny Tan Brown MorSoy Extra 55X75 Purple Tawny Tan Brown U. of Missouri S-095 Purple Tawny Tan Black 3494 I 5.3 REV 5A REV 5A94 Purple Grey Tan Imp. black REV 54R84 Purple Tawny Tan Black REV 55R53 White Tawny Brown Black REV 56R63 Purple Grey Tan Buff Schillinger 50.RC White Lt. tawny Tan Black 3486 I 5. Dyna-Gro S5RY75 White Lt. tawny Tan Brown 335 D 5. Dyna-Gro 3RY55 Purple Grey Tan Imp. black 54 D 5.5 Dyna-Gro S56RY84 Purple Tawny Tan Brown 386 D 5.6 Delta Grow DG 570RR/STS Purple Lt. tawny Tan Black 79 I 5. Delta Grow DG 530RR White Lt. tawny Tan Brown 90 D 5. Delta Grow DG 5575RR Purple Lt. tawny Brown Brown 304 D 5.5 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 5.0 is very early in Group V, while 5.9 is very late in Group V. Mississippi Agricultural and Forestry Experiment Station 57

64 Table 7 (continued). Plant Characteristics of Maturity Group V Early Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Delta Grow DG 565RR Purple Tawny Tan Black Croplan RC508 White Grey Tan Buff 3350 D 5.0 Armor 50-R Armor 5-R Armor AR Armor AR Armor 55-R NK Brand S50-J7 White Grey Tan Buff NK Brand S5-Y Purple Lt. tawny Tan Imp. black NK Brand S55-Q3 Purple Tawny Tan Black Great Heart Seed GT-56CR Purple Grey Brown Imp. black 980 I 5. Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 5.0 is very early in Group V, while 5.9 is very late in Group V. Table 73. Plant Characteristics of Maturity Group V Late Roundup Ready Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Monsanto AG583 Purple Tawny Tan Black 960 D 5.8 USG 75B75R Purple Tawny Tan Brown Progeny Ag P 575RY Purple Tawny Tan Brown REV 57R Purple Tawny Tan Brown 85 D 5.7 Dyna-Gro 39RY57 Purple Tawny Tan Black 93 D 5.7 Dyna-Gro S57RY5 Purple Tawny Tan Brown 334 D 5.7 NK Brand S58-Z4 White Grey Tan Imp. black NK Brand S59-V9 Purple Grey Tan Imp. black Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 5.0 is very early in Group V, while 5.9 is very late in Group V. 58 Mississippi Soybean Variety Trials, 05

65 Table 74. Plant Characteristics of Maturity Group IV Liberty Link Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Credenz CZ 3945 LL White Grey Tan Buff Credenz CZ 405 LL White Lt. tawny Brown Black Credenz CZ 4540 LL White Lt. tawny Tan Black Hornbeck HBK LL4653 White Grey Tan Buff Credenz CZ 4748 LL White Lt. tawny Brown Black Credenz CZ 488 LL White Lt. tawny Tan Brown Hornbeck HBK LL4950 Mixed Grey Tan Buff Hornbeck HBK LL4953 Purple Grey Tan Imp. black Progeny Ag P 484LLS Purple Tawny Tan Black Progeny Ag P 4930LL Purple Grey Tan Imp. black Halo 4.8 Purple Lt. tawny Brown Black Halo 4.95 White Tawny Brown Brown Halo 4.98 Purple Grey Tan Imp. black Armor 47-L Armor 49X5L REV 49L9 355 I 4.9 Go Soy 474LL White Lt. tawny Brown Black 809 I 4.7 Dyna-Gro S49LL34 Purple Grey Tan Imp. black 3053 I 4.9 Delta Grow DG 4977LL/STS Purple Grey Tan Imp. black 90 I 4.9 Delta Grow DG 498LL/STS White Tawny Tan Black 98 D 4.9 Delta Grow DG 4967LL White Grey Tan Imp. black 3380 I 4.9 Delta Grow DG 4990LL Purple Grey Tan Imp. black 385 I 4.9 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 5.0 is very early in Group V, while 5.9 is very late in Group V. Table 75. Plant Characteristics of Maturity Group V Liberty Link Soybeans. Brand Variety Color Seeds Growth Bloom Pubescence Pod wall Hilum D/I RM 3 Credenz CZ 550 LL Purple Grey Tan Imp. black Credenz CZ 547 LL Purple Tawny Tan Black Credenz CZ 54 LL Purple Grey Tan Imp. black Credenz CZ 5445 LL White Tawny Tan Black Credenz CZ 555 LL Purple Lt. tawny Tan Brown Credenz CZ 577 LL White Tawny Tan Black Progeny Ag P 560LL White Tawny Tan Black Progeny Ag P 544LLS White Tawny Tan Black Progeny Ag P 5460LL Purple Lt. tawny Tan Brown Progeny Ag P 5960LL White Grey Brown Buff Progeny Ag P 6355LL White Tawny Tan Imp. black Halo 6:4 Purple Grey Tan Imp. black Armor 5X5L Armor 53-L REV 55L Go Soy 55LL Purple Grey Tan Imp. black 370 D 5. Go Soy 55LL Purple Grey Tan Imp. black 3343 D 5. Go Soy 555LL White Tawny Tan Black 465 D 5.5 Dyna-Gro S5LL66 Purple Grey Tan Imp. black 3386 I 5. Dyna-Gro S55LS75 White Tawny Tan Black 58 D 5.5 Delta Grow DG 5067LL Purple Grey Tan Imp. black 3537 I 5.0 Delta Grow DG 5367LL Purple Grey Tan Buff 353 D 5.3 Delta Grow DG 546LL Purple Lt. tawny Tan Brown 390 I 5.4 Represents an average number of seed per pound, seed may vary according to season and location. D = determinate; I = indeterminate. 3 Relative Maturity is an indicator of how this variety or line matures in relationship to other varieties or lines. The whole number refers to Maturity Groups IV and V. The decimal numbers convey the relative earliness or lateness. For example, 5.0 is very early in Group V, while 5.9 is very late in Group V. Mississippi Agricultural and Forestry Experiment Station 59

66 Public Varieties Entered University of Arkansas UA 504C R0-30 R-89RY R UA 574HP OSAGE UA 56 UA 53C R UA 544RR R0-97RY University of Missouri S-04 S-0337 S-095 S-705 S-6653 S-379 USDA Agricultural Research Service Tennessee JTN Mississippi Soybean Variety Trials, 05

67 Commercial Varieties Entered Armor Seed LLC Armor 47-L0 Armor 49X 83 Pennsylvania Avenue Armor 49X5L Armor AR 4904 Waldenburg, AR 7475 Armor AR 4305 Armor 50-R Armor AR 4504 Armor 50-R50 Armor AR 465 Armor AR 505 Armor 46-R65 Armor AR 5605 Armor AR 4705 Armor AR 565 Armor 5X5L Armor 53-L55 Bayer CropScience Credenz CZ 3945 LL Credenz CZ 5445 LL 39 County Road 83 Credenz CZ 405 LL Credenz CZ 555 LL McCarley, MS Credenz CZ 4540 LL Credenz CZ 577 LL Hornbeck HBK LL4653 Credenz CZ 48 RY Credenz CZ 4748 LL Credenz CZ 4590 RY Credenz CZ 488 LL Hornbeck HBK RY47 Hornbeck HBK LL4950 Credenz CZ 4959 RY Hornbeck HBK LL4953 Credenz CZ 550 LL Credenz CZ 547 LL Credenz CZ 54 LL Cache River Valley Seed LLC MorSoy Extra 46X95 Halo Highway 6 East MorSoy Extra 47X Halo 5.6 Cash, AR 74 MorSoy Extra 48X0 MorSoy Extra 49X85 MorSoy Extra 55X75 Halo 4.80 Halo 4.95 Delta Grow Seed Delta Grow 4670 RY Delta Grow 5555 RR P.O. Box 9 Delta Grow 4790 RR Delta Grow 4587 LL/STS England, AR 7046 Delta Grow 4755 RR Delta Grow 4977 LL/STS Delta Grow 4765 RR/STS Delta Grow 498 LL/STS Delta Grow 570 RR/STS Delta Grow 4967LL Delta Grow 4775 RR/STS Delta Grow 4990LL Delta Grow 485 RR/STS Delta Grow 5067LL Delta Grow 4930 RR/STS Delta Grow 5367LL Delta Grow 4935 RR/STS Delta Grow 546LL Delta Grow 530 RR Delta Grow 4567LL Delta Grow 4970 RR Delta Grow 478LL Delta Grow 4880 RR Delta Grow 565 RR Delta Grow 5467LL Delta Grow 5575 RR Delta Grow 4985 RR Delta Grow 5565 RR Delta Grow 530 RR Dyna-Gro Seed Dyna-Gro S43RY95 Dyna-Gro 3RY55 5 Robinson Road Dyna-Gro 3RY45 Dyna-Gro S56RY84 Houston, MS 3885 Dyna-Gro S46RY85 Dyna-Gro 39RY57 Dyna-Gro 37RY47 Dyna-Gro S49LL34 Dyna-Gro S57RY5 Dyna-Gro S5LL66 Dyna-Gro S48RS53 Dyna-Gro S49RY5 Dyna-Gro S5RY75 Dyna-Gro S55LS75 Great Heart Seed Great Heart Seed GT 56CR Great Heart Seed GT 469CRS 0 West Washington Street Great Heart Seed GT 477CR Paris, IL 6944 Great Heart Seed GT 476CR Great Heart Seed GT 48CRS Great Heart Seed GT 435CR Monsanto Asgrow AG435 Asgrow AG North Lindbergh Boulevard Asgrow AG43 Asgrow AG5535 St. Louis, MO 6367 Asgrow AG4336 Asgrow AG583 Asgrow AG4533 Asgrow AG463 Asgrow AG4835 Asgrow AG4934 Asgrow AG533 Asgrow AG533 Asgrow AG5335 Mississippi Agricultural and Forestry Experiment Station 6

68 Mycogen Seeds Mycogen 5N404R Mycogen 5N50R 07 Meritt Cove Mycogen 5N433R Mycogen 5N5R Marion, AR 7364 Mycogen 5N45R Mycogen 5N550R Mycogen 5N479R Mycogen 5N490R Progeny Ag Products Progeny 4 RY Progeny 575 RY 59 Highway 93 Progeny 44 RY Progeny 560 RY Wynne, AR 7396 Progeny 4757 RY Progeny 4560 LL Progeny 463 RYS Progeny 484 LLS Progeny 4850 RYS Progeny 544 LLS Progeny 4788 RY Progeny 6355 LL Progeny 4900 RY Progeny 4930 LL Progeny 56 RYS Progeny 560 LL Progeny 5555 RY Progeny 5460 LL Progeny 53 RY Progeny 5960 LL Progeny 5333 RY Progeny Steyer Seeds Steyer 460R P.O. Box 09 Steyer 480R Old Fort, OH 4486 Steyer 4303R Stratton Seed Company Go Soy 474LL Go Soy LELAND 530 Highway 79 South Go Soy 55LL Go Soy IREANE Stuttgart, AR 760 Go Soy 55LL Go Soy 495R Go Soy 535LL Go Soy 474GTS Go Soy 555LL Go Soy 494GTS Go Soy GLIDER Schillinger 495.RC Go Soy 483C Schillinger 50.RC Syngenta NK Brand S45-V8 Brand NK Brand S50-J7 Brand 3760 Business Drive, Suite 05 NK Brand S58-Z4 Brand NK Brand S59-V9 Brand Memphis, TN 385 NK Brand S47-K5 Brand NK Brand S5-Y Brand NK Brand S48-D9 Brand NK Brand S55-Q3 Brand Terral Seed Inc. REV 47R53TM REV 57RTM Ellington Drive REV 47R34TM REV 49A55TM Rayville, LA 769 REV 48A46TM REV 49A75TM REV 54R84TM REV 5A94TM REV 55R53TM REV 49L9TM REV 49R94TM REV 55L95TM REV 5A56TM REV 5A94TM REV 56R63TM UniSouth Genetics Inc. USG 75G4L USG 74K95RS 305-C Highway 46 South USG 74F4RS USG 75J45R Dickson, TN USG 74A74RS USG 75B75R USG 74B83RS USG Ellis USG 74D95RS USG Land O Lakes/Winfield/Croplan Croplan RC454 P.O. Box 643 Croplan RC475S St. Paul, MN Croplan RC508 Croplan RC 4Y 6 Mississippi Soybean Variety Trials, 05

69 Mention of a trademark or proprietary product does not constitute a guarantee or warranty of the product by the Mississippi Agricultural and Forestry Experiment Station and does not imply its approval to the exclusion of other products that also may be suitable. We are an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law. mafes.msstate.edu/variety-trials