Anton E. Coy, John D. Gassett, and J. LaDon Day Editors

Transcription

1 The Georgia Agricultural Experiment Stations Annual Publication College of Agricultural and Environmental Sciences October 2013 The University of Georgia Georgia 2013 Corn Performance Tests Anton E. Coy, John D. Gassett, and J. LaDon Day Editors Department of Crop and Soil Sciences Griffin Campus

2 Conversion Table U.S. Abbr. Unit Approximate Metric Equivalent Length mi mile kilometers yd yard meters ft or ' foot centimeters in or " inch 2.54 centimeters Area sq mi or mi 2 square mile 2.59 square kilometers acre acre hectares or 4047 square meters sq ft or ft 2 square foot square meters Volume/Capacity gal gallon liters qt quart liters pt pint liters fl oz fluid ounce milliliters or cubic centimeters bu bushel liters cu ft or ft 3 cubic foot cubic meters Mass/Weight ton ton metric ton lb pound kilogram oz ounce grams Metric Abbr. Unit Approximate U.S. Equivalent Length km kilometer 0.62 mile m meter inches or 1.09 yards cm centimeter 0.39 inch mm millimeter 0.04 inch Area ha hectare 2.47 acres Volume/Capacity liter liter cubic inches or quarts ml milliliter 0.06 cubic inch or fluid ounce cc cubic centimeter cubic inch or fluid ounce Mass/Weight MT metric ton 1.1 tons kg kilogram pounds g gram ounce mg milligram 3.5 x 10-5 ounce J. Scott Angle Joe W. West Dean and Director Assistant Dean Southern Region Gerald F. Arkin Assistant Dean Northern Region Robert N. Shulstad Associate Dean and Senior Associate Director ISSN X

3 PREFACE In this research report, the results of the 2013 corn performance trials are presented. Corn performance trials were conducted at six locations throughout Georgia (see map inside back cover) in Short-season and mid-season hybrids were planted at Tifton, Plains, and Midville in the Coastal Plain region; at Griffin in the Piedmont region; at Calhoun in the Limestone Valley region; and at Blairsville in the Mountain region. Hybrids used for silage were evaluated at Tifton, Griffin, Calhoun, and Blairsville. At each site all plots within a maturity group were seeded at the rates specified and not thinned, and the populations at harvest are included in the tables. Information concerning fertilization and cultural practices used in each trial is included with the tables. Grain harvesting was done with a plot combine, and yields were adjusted to 15.5% moisture. Since data averaged over several years indicate a hybrid's yield potential better than data from only a single year, average yields over several years are included in this report. The least significant difference (LSD) at the 10% level has been included in the tables to aid in comparing hybrids. If the yields' difference of any two hybrids exceeds the LSD value, they can be considered different in yield ability. Bolding is used in the performance tables to indicate hybrids with yields statistically equal to the highest yielding entry in the test. The standard error (Std. Err.) of an entry mean is included at the bottom of each table to provide a general indicator of the level of precision of each experiment. The lower the value of the standard error of the entry mean, the more precise the experiment. Producers of hybrid seed corn are invited to enter their hybrids in the Georgia performance trials. Most hybrids entered are commercially available in Georgia, but a few experimental hybrids are also entered. Entry of a hybrid in these trials does not imply endorsement or recommendation by the University of Georgia College of Agricultural and Environmental Sciences. This report is one of four publications presenting the performance of agronomic crops in Georgia. For information concerning the performance of other crops, refer to one of the following research reports: Small Grains Performance Tests (Annual Publication #100-5); the 2012 Soybean, Sorghum Grain and Silage, and Summer Annual Forages Performance Tests (Annual Publication #103-4); the 2012 Peanut, Cotton and Tobacco Performance Tests (Annual Publication #104-4); and the 2013 Canola Performance data ( This report, along with performance test information on other crops, is also available online at Additional information may be obtained by writing J. LaDon Day, Department of Crop and Soil Sciences, University of Georgia Griffin Campus, 1109 Experiment Street, Griffin, GA

4 Cooperators Mr. A. Black, Southeast Research & Education Center, Midville, Georgia. Dr. D. Buntin, Department of Entomology, UGA Griffin Campus, Griffin, Georgia. Dr. Kedong Da, USDA-ARS, UGA Tifton Campus, Tifton, Georgia. Dr. I. Flitcroft, UGA Griffin Campus, Griffin, Georgia. Mr. G. Granade, Field Research Services, UGA Griffin Campus, Griffin, Georgia. Dr. B. Z. Guo, USDA-ARS, UGA Tifton Campus, Tifton, Georgia. Mr. S. R. Jones, Southwest Research & Education Center, Plains, Georgia. Mr. R. Covington, Mountain Research & Education Center, Blairsville, Georgia. Mr. S. Mullis, Mountain Research & Education Center, Blairsville, Georgia. Dr. X. Ni, USDA-ARS Crop Genetics & Breeding Research Unit, UGA Tifton Campus, Tifton, Georgia. Mr. E. T. Ross, Field Research Services, UGA Tifton Campus, Tifton, Georgia. Mr. J. Stubbs III, Northwest Research & Education Center, Calhoun, Georgia. Dr. M. Toews, Department of Entomology, UGA Tifton Campus, Tifton, Georgia. Mr. P. C. Worley, Northwest Research & Education Center, Calhoun, Georgia. Contributors The following individuals contributed to the gathering of data and preparation of this report: R. Beck, R. Brooke, K. Cobb, P. Compton, D. Dunn, M. Flynn, M. Gilmer, J. Gamblin, D. Gordan, D. Griffin, W. Hedden, W. Jones, L. Lee, B. McCranie, R. Milton, A. Overton, D. Patterson, D. Pearce, J. Penn, T. Perla, J. Roberts, D. Rogers, D. Stephens, T. Strickland, P. Tapp, J. Wallace, G. Ware, and X. Wei.

5 CONTENTS The Season... 1 Growing Season Rainfall, Grain Tests Results Corn Hybrid Performance in the Coastal Plain Coastal Plain Region, Georgia: Summary of Corn Hybrid Performance, Tifton, Georgia: Short-Season Corn Hybrid Performance, 2013, Nonirrigated... 4 Tifton, Georgia: Mid-Season Corn Hybrid Performance, 2013, Nonirrigated... 6 Tifton, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated... 8 Tifton, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Tifton, Georgia: Preliminary Corn Hybrid Performance, 2013, Irrigated Plains, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Plains, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Midville, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Midville, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Corn Hybrid Performance in the Piedmont Region Griffin, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Griffin, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Corn Hybrid Performance in North Georgia Calhoun, Georgia: Short-Season Corn Hybrid Performance, 2013, Nonirrigated Calhoun, Georgia: Mid-Season Corn Hybrid Performance, 2013, Nonirrigated Calhoun, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Calhoun, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Blairsville, Georgia: Short-Season Corn Hybrid Performance, 2013, Nonirrigated Blairsville, Georgia: Mid-Season Corn Hybrid Performance, 2013, Nonirrigated Silage Tests Results Corn Hybrid Performance for Use as Silage Summary of Evaluations of Corn Hybrids for Silage: Blairsville, Calhoun, Griffin, and Tifton, Georgia, Summary of Quality Factors of Short-Season Corn Hybrids for Silage, Tifton, Georgia, Summary of Quality Factors of Mid-Season Corn Hybrids for Silage, Tifton, Georgia, Tifton, Georgia: Evaluation of Corn Hybrids for Silage, 2013, Irrigated Griffin, Georgia: Evaluation of Corn Hybrids for Silage, 2013, Irrigated Calhoun, Georgia: Evaluation of Corn Hybrids for Silage, 2013 Irrigated Blairsville, Georgia: Evaluation of Corn Hybrids for Silage, 2013, Nonirrigated Insect Screening Results Multiple Insect Resistance in 70 Commercial Corn Hybrids, Tifton, Georgia: Ear-Feeding Insect Resistance in 70 Commercial Corn Hybrids, Sources of Seed for the 2013 Corn Hybrid Tests... 48

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7 2013 Corn Performance Tests Edited by Anton E. Coy, John D. Gassett, and J. LaDon Day The Season For the first time in a decade, Georgia s 2013 corn season began with an abundant amount of soil moisture. Rain and cool temperatures through February, March, and April delayed planting throughout much of the state. As the season progressed, irrigation was not much of a concern, and corn showed signs of yellowing due to the excessive amounts of rain. Corn drowning out and the lack of bright sunshine was a concern for the first time in years. Wet fields hampered silage harvest for many farmers. July rains combined with stink bug pressure caused quality problems in most of the corn-growing belt in Georgia. Seasonal rainfall totals, as shown in the table below, were above normal for all locations. Rainfall in north Georgia ranged from 4.8 inches to 15.2 inches above normal, while south Georgia was 13.6 inches to 26.8 inches above normal. Growing Season Rainfall 1, 2013 Month Blairsville Calhoun 2 Griffin Midville Plains Tifton inches February March April May June July August September Total (8 mo) Normal (8 mo) Data submitted by Dr. I. Flitcroft, Georgia Station, Griffin, GA. 2. Floyd County location. The good, corn crop progress in Georgia took a downward turn during June and July when excessive rainfall caused grain rot problem, especially at the base of ears where it s attached to the stalk. Total corn planted for grain in Georgia was 500,000 acres, up 69% from ,000 acres of corn grain were harvested. According to the October crop estimates from the USDA, Georgia corn producers averaged 183 bushels per acre of corn this growing season (7 bu/ac less than the new state yield record during 2012). A total production of million bushels of corn was an increase of 26.3 million bushels or 47% more than last year. The large total production this season was due mainly to adequate rainfall for nonirrigated acres. Anton E. Coy is a senior agricultural specialist in the Department of Crop and Soil Sciences at the UGA Tifton Campus in Tifton, Georgia John D. Gassett is the program director of the statewide variety testing program and J. LaDon Day is a research scientist in the Department of Crop and Soil Sciences at the UGA Griffin Campus in Griffin, Georgia

8 Grain Tests Results Coastal Plain Region Coastal Plain Region of Georgia: Summary of Corn Hybrid Performance, 2013 Company or Brand Name Variety Coastal Plain Average Tifton Non-Irr. Tifton Irrigated Midville Irrigated Plains Irrigated Irrigated Average bu/acre Short-Season Pfister Phoenix Dyna-Gro D55GT T. A. Seeds TA Terral-REV 25BHR Augusta Seed Dyna-Gro D55VP Croplan Genetics 6960 VT3 PRO Croplan Genetics 6640 VT3 Pro AgraTech 1777GT Pioneer P1319HR Dyna-Gro D52VC AgraTech 744VT3PRO Augusta Seed 5465GTCGLL Pfister Terral-REV 17HR Augusta Seed Pfister Augusta Seed Syngenta NK N68B Pfister Armor 1555SS Terral-REV 22BHR Dyna-Gro D54VP Armor 1550PRO Terral-REV 18BHR DeKalb DKC64-99 VT2P DeKalb DKC65-19 VT3P T. A. Seeds TA753-22DP Armor 1133PRO Armor 1262PRO Average LSD at 10% Level Std. Err. of Entry Mean Yield 2 AP Georgia 2013 Corn Performance Tests

9 Company or Brand Name Mid-Season Coastal Plain Region of Georgia: Summary of Corn Hybrid Performance, 2013 (Continued) Variety Coastal Plain Average Tifton Non-Irr. Tifton Irrigated Midville Irrigated Plains Irrigated Irrigated Average bu/acre Terral-REV 28R Augusta Seed 6866GT3000A Pioneer P1685YHR Pioneer P1690YHR Syngenta NK N79T Augusta Seed Syngenta NK N82V Croplan Genetics 8621 VT3 Pro Augusta Seed Terral-REV 26BHR Armor 1880PRO Dyna-Gro D57VP AgraTech 84G6 3000GT Terral-REV 28HR AgraTech 903 Viptera T. A. Seeds TA785-13VP Phoenix Phoenix Croplan Genetics 8410 VT3 PRO AgraTech 883VT3PRO Dyna-Gro DK56VC Pioneer P2023YHR Pioneer P1636YHR Syngenta NK N78S Terral-REV 27HR T. A. Seeds TA780-22DP Syngenta NK N74G-3000GT Dyna-Gro D57VP DeKalb DKC67-57 VT3P Phoenix Average LSD at 10% Level Std. Err. of Entry Mean Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Yield AP Georgia 2013 Corn Performance Tests 3

10 Company or Brand Name Tifton, Georgia: Short-Season Corn Hybrid Performance, 2013, Nonirrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Terral-REV 25BHR T. A. Seeds TA Croplan Genetics 6960 VT3 PRO Dyna-Gro D55GT Croplan Genetics 6640 VT3 Pro Dyna-Gro D55VP Pioneer P1319HR Dyna-Gro D54VP AgraTech 744VT3PRO Phoenix Armor 1555SS Pfister Terral-REV 18BHR Syngenta NK N68B AgraTech 1777GT T. A. Seeds TA753-22DP Augusta Seed 5465GTCGLL Pfister Augusta Seed Pfister Dyna-Gro D52VC Augusta Seed DeKalb DKC65-19 VT3P Pfister Augusta Seed Armor 1550PRO Terral-REV 22BHR Terral-REV 17HR Armor 1262PRO DeKalb DKC64-99 VT2P Armor 1133PRO Average LSD at 10% Level 15.9 N.S. 5 - N.S N.S N.S. Std. Err. of Entry Mean AP Georgia 2013 Corn Performance Tests

11 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Tifton, Georgia: Short-Season Corn Hybrid Performance, 2013, Nonirrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 6.7%, and df for EMS = 90. April 9, August 13, ,000 seeds/acre in 30" rows. Fuquay loamy sand. P = Low, K = Medium, and ph = lb N, 80 lb P 2 O 5, and 88 lb K 2 O/acre as preplant; 130 lb N/acre as sidedress. Peanuts. Disked, subsoiled and bedded, rototilled; Atrazine, Prowl, and Accent used for weed control; Telone II used for nematode control. Test conducted by A. Coy, R. Brooke, D. Dunn, and B. McCranie. AP Georgia 2013 Corn Performance Tests 5

12 Company or Brand Name Tifton, Georgia: Mid-Season Corn Hybrid Performance, 2013, Nonirrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Augusta Seed Augusta Seed Terral-REV 28HR Terral-REV 28R Augusta Seed 6866GT3000A Croplan Genetics 8621 VT3 Pro Pioneer P2023YHR AgraTech 84G6 3000GT Phoenix Syngenta NK N79T Pioneer P1685YHR Syngenta NK N78S Dyna-Gro D57VP Terral-REV 26BHR Pioneer P1690YHR T. A. Seeds TA785-13VP AgraTech 883VT3PRO Armor 1880PRO Pioneer P1636YHR AgraTech 903 Viptera Croplan Genetics 8410 VT3 PRO DeKalb DKC67-57 VT3P Phoenix Terral-REV 27HR Dyna-Gro D57VP Dyna-Gro DK56VC Phoenix Syngenta NK N82V T. A. Seeds TA780-22DP Syngenta NK N74G-3000GT Average LSD at 10% Level N.S. 5 N.S N.S. Std. Err. of Entry Mean AP Georgia 2013 Corn Performance Tests

13 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Tifton, Georgia: Mid-Season Corn Hybrid Performance, 2013, Nonirrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 6.5%, and df for EMS = 87. April 9, August 13, ,000 seeds/acre in 30" rows. Fuquay loamy sand. P = Low, K = Medium, and ph = lb N, 80 lb P 2 O 5, and 88 lb K 2 O/acre as preplant; 130 lb N/acre as sidedress. Peanuts. Disked, subsoiled and bedded, rototilled; Atrazine, Prowl, and Accent used for weed control; Telone II used for nematode control. Test conducted by A. Coy, R. Brooke, D. Dunn, and B. McCranie. AP Georgia 2013 Corn Performance Tests 7

14 Company or Brand Name Tifton, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Terral-REV 25BHR T. A. Seeds TA AgraTech 1777GT Croplan Genetics 6640 VT3 Pro Dyna-Gro D55VP Dyna-Gro D55GT Phoenix Croplan Genetics 6960 VT3 PRO Pioneer P1319HR Dyna-Gro D52VC Pfister AgraTech 744VT3PRO Augusta Seed Armor 1555SS Pfister T. A. Seeds TA753-22DP Terral-REV 17HR Armor 1550PRO Terral-REV 22BHR Pfister Dyna-Gro D54VP Augusta Seed DeKalb DKC65-19 VT3P Terral-REV 18BHR DeKalb DKC64-99 VT2P Syngenta NK N68B Armor 1133PRO Augusta Seed 5465GTCGLL Armor 1262PRO Pfister Augusta Seed Average LSD at 10% Level 15.3 N.S N.S. Std. Err. of Entry Mean AP Georgia 2013 Corn Performance Tests

15 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Tifton, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 5.4%, and df for EMS = 90. April 8, August 20, ,500 seeds/acre in 30" rows. Tifton loamy sand. P = High, K = Medium, and ph = lb N, 176 lb P 2 O 5, and 280 lb K 2 O/acre as preplant; 260 lb N/acre as sidedress. Soybeans. Disked, subsoiled and bedded, rototilled; Atrazine, Prowl, and Accent used for weed control; Telone II used for nematode control; irrigated 3 inches. Test conducted by A. Coy, R. Brooke, D. Dunn, and B. McCranie. AP Georgia 2013 Corn Performance Tests 9

16 Company or Brand Name Tifton, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Pioneer P1690YHR Terral-REV 28HR Pioneer P1685YHR Pioneer P2023YHR Augusta Seed 6866GT3000A Syngenta NK N82V Terral-REV 26BHR Terral-REV 27HR Terral-REV 28R Syngenta NK N78S Augusta Seed Phoenix AgraTech 903 Viptera Phoenix Dyna-Gro D57VP Syngenta NK N79T Armor 1880PRO T. A. Seeds TA785-13VP Croplan Genetics 8621 VT3 Pro Pioneer P1636YHR Phoenix Dyna-Gro DK56VC AgraTech 883VT3PRO Dyna-Gro D57VP AgraTech 84G6 3000GT DeKalb DKC67-57 VT3P Croplan Genetics 8410 VT3 PRO T. A. Seeds TA780-22DP Syngenta NK N74G-3000GT Augusta Seed Average LSD at 10% Level 14.3 N.S Std. Err. of Entry Mean AP Georgia 2013 Corn Performance Tests

17 LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Tifton, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 4.8%, and df for EMS = The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected April 3, August 20, ,500 seeds/acre in 30" rows. Tifton loamy sand. P = High, K = Medium, and ph = lb N, 176 lb P 2 O 5, and 280 lb K 2 O/acre as preplant; 260 lb N/acre as sidedress. Soybeans. Disked, subsoiled and bedded, rototilled; Atrazine, Prowl, and Accent used for weed control; Telone II used for nematode control; irrigated 3 inches. Test conducted by A. Coy, R. Brooke, D. Dunn, and B. McCranie. AP Georgia 2013 Corn Performance Tests 11

18 Company or Brand Name Tifton, Georgia: Preliminary Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % T. A. Seeds TA784-13VP Pioneer P2023YHR T. A. Seeds X T. A. Seeds X18698D AgraTech 842VT3PRO T. A. Seeds X18696D AgraTech 883VT3PRO T. A. Seeds X Greenwood GW 3515 RR Terral-REV 18BHR T. A. Seeds X18691D T. A. Seeds X Syngenta NK N68B Greenwood GW 3560 RR Greenwood GW 3540 RR Average LSD at 10% Level N.S Std. Err. of Entry Mean Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 4.3%, and df for EMS = The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: April 8, August 20, ,000 seeds/acre in 30" rows. Tifton sandy loam. P = High, K = Medium, and ph = lb N, 176 lb P 2 O 5, and 280 lb K 2 O/acre as preplant; 260 lb N/acre as sidedress. Soybeans. Disked, subsoiled and bedded, rototilled; Atrazine, Prowl, and Accent used for weed control; irrigated 3 inches. Test conducted by A. Coy, R. Brooke, D. Dunn, and B. McCranie. 12 AP Georgia 2013 Corn Performance Tests

19 Company or Brand Name Plains, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Pfister Augusta Seed Phoenix Croplan Genetics 6960 VT3 PRO DeKalb DKC65-19 VT3P Dyna-Gro D55VP Terral-REV 25BHR Dyna-Gro D54VP Syngenta NK N68B T. A. Seeds TA Dyna-Gro D55GT Augusta Seed DeKalb DKC64-99 VT2P Croplan Genetics 6640 VT3 Pro AgraTech 744VT3PRO Terral-REV 17HR Augusta Seed Pfister Dyna-Gro D52VC Armor 1555SS Armor 1133PRO Pioneer P1319HR Armor 1550PRO Augusta Seed 5465GTCGLL AgraTech 1777GT Pfister Armor 1262PRO Terral-REV 22BHR T. A. Seeds TA753-22DP Pfister Terral-REV 18BHR Average LSD at 10% Level 29.0 N.S N.S. N.S. Std. Err. of Entry Mean AP Georgia 2013 Corn Performance Tests 13

20 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Plains, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 13.0%, and df for EMS = 60. April 11, August 26, ,500 seeds/acre in 30" rows. Greenville sandy loam. P = Medium, K = High, and ph = lb N, 190 lb P 2 O 5, and 43 lb K 2 O/acre as preplant; 180 lb N/acre as sidedress. Soybeans. Disked, subsoiled, rototilled; Atrazine and Prowl used for weed control; applied lime 800 lb/acre; irrigated 1 inch. Test conducted by A. Coy, W. Jones, D. Pearce, R. Brooke, D Dunn, and B. McCranie. 14 AP Georgia 2013 Corn Performance Tests

21 Company or Brand Name Plains, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Syngenta NK N79T Terral-REV 28R Augusta Seed 6866GT3000A Syngenta NK N82V Dyna-Gro D57VP Pioneer P1685YHR AgraTech 84G6 3000GT Syngenta NK N74G-3000GT Croplan Genetics 8621 VT3 Pro Armor 1880PRO Augusta Seed Phoenix Terral-REV 26BHR Croplan Genetics 8410 VT3 PRO T. A. Seeds TA785-13VP AgraTech 883VT3PRO Dyna-Gro DK56VC T. A. Seeds TA780-22DP Pioneer P1690YHR Dyna-Gro D57VP Augusta Seed AgraTech 903 Viptera Pioneer P1636YHR Phoenix DeKalb DKC67-57 VT3P Terral-REV 28HR Pioneer P2023YHR Syngenta NK N78S Terral-REV 27HR Phoenix Average LSD at 10% Level 23.1 N.S. 5 N.S. N.S N.S. Std. Err. of Entry Mean AP Georgia 2013 Corn Performance Tests 15

22 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Plains, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 13.8%, and df for EMS = 87. April 11, August 26, ,500 seeds/acre in 30" rows. Greenville sandy loam. P = Medium, K = High, and ph = lb N, 190 lb P 2 O 5, and 43 lb K 2 O/acre as preplant; 180 lb N/acre as sidedress. Soybeans. Disked, subsoiled, rototilled; Atrazine and Prowl used for weed control; applied lime 800 lb/acre; irrigated 1 inch. Test conducted by A. Coy, W. Jones, D. Pearce, R. Brooke, D Dunn, and B. McCranie. 16 AP Georgia 2013 Corn Performance Tests

23 Company or Brand Name Midville, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Pfister Phoenix Augusta Seed Dyna-Gro D55GT Augusta Seed 5465GTCGLL Pfister Pfister Pfister Augusta Seed T. A. Seeds TA AgraTech 1777GT Pioneer P1319R Dyna-Gro D52VC Terral-REV 17HR Terral-REV 22BHR Terral-REV 25BHR Croplan Genetics 6640 VT3 Pro Dyna-Gro D55VP Terral-REV 18BHR Augusta Seed AgraTech 744VT3PRO Armor 1550PRO Croplan Genetics 6960 VT3 PRO Syngenta NK N68B DeKalb DKC64-99 VT2P T. A. Seeds TA753-22DP Armor 1133PRO Armor 1555SS Armor 1262PRO DeKalb DKC65-19 VT3P Dyna-Gro D54VP Average LSD at 10% Level N.S Std. Err. of Entry Mean * AP Georgia 2013 Corn Performance Tests 17

24 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Midville, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 11.9%, and df for EMS = 90. April 18, August 28, ,500 seeds/acre in 30" rows. Tifton sandy loam. P = Medium, K = Medium, and ph = lb N, 180 lb P 2 O 5, and 250 lb K 2 O/acre as preplant; 220 lb N/acre as sidedress. Soybeans. Disked, subsoiled and bedded, rototilled; Atrazine and Prowl used for weed control; Telone II used for nematode control; irrigated 8 inches. Test conducted by A. Coy, R. Brooke, D. Dunn, B. McCranie, K. Cobb, and R. Milton. 18 AP Georgia 2013 Corn Performance Tests

25 Company or Brand Name Midville, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % AgraTech 903 Viptera Augusta Seed Pioneer P1690YHR Phoenix Terral-REV 27HR Augusta Seed Syngenta NK N78S T. A. Seeds TA785-13VP Terral-REV 28R Pioneer P1685YHR Armor 1880PRO Croplan Genetics 8410 VT3 PRO Croplan Genetics 8621 VT3 Pro Terral-REV 28HR Augusta Seed 6866GT3000A Pioneer P2023YHR Dyna-Gro DK56VC Phoenix T. A. Seeds TA780-22DP Pioneer P1636YHR Dyna-Gro D57VP Terral-REV 26BHR AgraTech 84G6 3000GT Syngenta NK N79T AgraTech 883VT3PRO Phoenix DeKalb DKC67-57 VT3P Syngenta NK N82V Syngenta NK N74G-3000GT Dyna-Gro D57VP Average LSD at 10% Level 19.9 N.S N.S. 19 Std. Err. of Entry Mean * AP Georgia 2013 Corn Performance Tests 19

26 5. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: Midville, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated (Continued) 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 7.8%, and df for EMS = 87. April 18, August 28, ,500 seeds/acre in 30" rows. Tifton sandy loam. P = Medium, K = Medium, and ph = lb N, 180 lb P 2 O 5, and 250 lb K 2 O/acre as preplant; 220 lb N/acre as sidedress. Soybeans. Disked, subsoiled and bedded, rototilled; Atrazine and Prowl used for weed control; Telone II used for nematode control; irrigated 8 inches. Test conducted by A. Coy, R. Brooke, D. Dunn, B. McCranie, K. Cobb, and R. Milton. 20 AP Georgia 2013 Corn Performance Tests

27 Piedmont Region Company or Brand Name Griffin, Georgia: Short-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Pioneer P1319HR Terral-REV 25BHR Croplan Genetics 6960 VT3 PRO Croplan Genetics 6640 VT3 Pro Augusta Seed Dyna-Gro D55VP Augusta Seed Terral-REV 18BHR AgraTech 1777GT T. A. Seeds TA DeKalb DKC64-99 VT2P DeKalb DKC65-19 VT3P Augusta Seed 5465GTCGLL Armor 1555SS Terral-REV 17HR T. A. Seeds TA753-22DP Pfister Syngenta NK N68B Armor 1550PRO Armor 1133PRO Pfister Terral-REV 22BHR Armor 1262PRO Augusta Seed Average LSD at 10% Level N.S. 5 Std. Err. of Entry Mean Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 7.5%, and df for EMS = The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: April 10, September 9, ,500 seeds/acre in 30" rows. Cecil sandy loam. P = Medium, K = High, and ph = lb N, 150 lb P 2 O 5, and 225 lb K 2 O/acre as preplant; 200 lb N/acre as sidedress. Soybeans. Subsoiled, disked, rotoilled; Lasso, Atrazine, and one cultivation used for weed control; irrigated 1 inch. Test conducted by J. Gassett and G. Ware. AP Georgia 2013 Corn Performance Tests 21

28 Company or Brand Name Griffin, Georgia: Mid-Season Corn Hybrid Performance, 2013, Irrigated Yield 1 Hybrid Name Yr 3-Yr bu/acre Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % Dyna-Gro D57VP Terral-REV 26BHR Augusta Seed Terral-REV 27HR Terral-REV 28HR Pioneer P1690YHR Terral-REV 28R Croplan Genetics 8621 VT3 Pro T. A. Seeds TA780-22DP Syngenta NK N82V Dyna-Gro D57VP Augusta Seed Augusta Seed 6866GT3000A Armor 1880PRO T. A. Seeds TA785-13VP Croplan Genetics 8410 VT3 PRO Syngenta NK N79T Pioneer P1636YHR DeKalb DKC67-57 VT3P Average LSD at 10% Level 20.8 N.S. 5 - N.S N.S. - Std. Err. of Entry Mean Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV = 6.8%, and df for EMS = The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: April 10, September 9, ,500 seeds/acre in 30" rows. Cecil sandy loam. P = Medium, K = High, and ph = lb N, 150 lb P 2 O 5, and 225 lb K 2 O/acre as preplant; 200 lb N/acre as sidedress. Soybeans. Subsoiled, disked, rotoilled; Lasso, Atrazine, and one cultivation used for weed control; irrigated 1 inch. Test conducted by J. Gassett and G. Ware. 22 AP Georgia 2013 Corn Performance Tests

29 Company or Brand Name Hybrid Name Yr 3-Yr bu/acre T. A. Seeds TA Terral-REV 24BHR Pioneer P1319HR Terral-REV 25BHR DeKalb DKC64-99 VT2P Terral-REV 22BHR AgraTech 1777GT Pfister Terral-REV 18BHR Croplan Genetics 6525 VT3/P Augusta Seed 5465GTCGLL Pfister Terral-REV 22BHR Augusta Seed Terral-REV 22BHR Terral-REV 17HR Croplan Genetics 6640 VT3 Pro Croplan Genetics 6265 VT2/P Syngenta NK N68B Augusta Seed Augusta Seed Dyna-Gro D52VC Croplan Genetics 6960 VT3 PRO T. A. Seeds TA753-22DP DeKalb DKC65-19 VT3P Croplan Genetics 6926 VT3 Pro Average LSD at 10% Level 20.1 N.S N.S. 0.7 N.S. 4 Std. Err. of Entry Mean LSD (P = 0.10). Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: North Georgia Region Calhoun, Georgia: Short-Season Corn Hybrid Performance, 2013, Nonirrigated Yield 1 Ears/ Ear 100 Grain Grain Grain Plant Erect Plants Wt. Quality 2 Moist. 3 Pop. Plants no. lb rating % no. % 1. Yields calculated at 15.5% moisture. 2. Grain quality rating: 1 = excellent to 5 = poor. 3. Grain moisture at harvest. 4. CV =8.8 %, and df for EMS = The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher's protected April 23, September 10, ,500 seeds/acre in 30" rows. Waynesboro loam. P = High, K = High, and ph = lb N, 65 lb P 2 O 5, and 170 lb K 2 O/acre as preplant; 150 lb N/acre as sidedress. Soybeans. Chiseled, disked, rototilled; Dual, Callisto, Atrazine, and one cultivation used for weed control; applied lime 1.75 tons/acre. Test conducted by J. Gassett, G. Ware, and J. Stubbs. AP Georgia 2013 Corn Performance Tests 23