Five Colorado Sunflower Trial Locations in 2000 with 1999 acreage harvested

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KNOW YOUR SUNFLOWER IMPROVEMENT TEAM Jerry J. Johnson, Extension Specialist Crop Production (970) 49-454 jjj@lamar.colostate.edu James P. Hain, Research Associate, Soil and Crop Sciences (970) 345-59 Cynthia L. Johnson, Research Associate, Soil and Crop Sciences (970) 49-94 cjohnson@agsci.colostate.edu Ron Meyer, Extension Agronomist, Golden Plains Area (79) 346-557 rmeyer@coop.ext.colostate.edu Five Colorado Sunflower Trial Locations in 000 with 999 acreage harvested Weld 5,000 Morgan 9,500 Adams 7,00 Arapahoe 4,600 Elbert 3,300 Logan 4,000 Akron Washington 9,000 Sedgwick 6,500 Haxtun Phillips 5,00 Yuma 8,700 Wray Bethune Kit Carson 63,000 Colorado Lincoln 8,500 Cheyenne Wells Cheyenne 46,500 Kiowa 4,000 Prowers 3,00 Baca 6,800 ACKNOWLEDGMENTS The authors wish to express their gratitude to the Colorado farmers who generously contributed the use of their land, equipment, and time to conduct these trials for the good of all Colorado sunflower producers and dealers: Akron - Jason Shook; Bethune - Dale Hansen; Cheyenne Wells - Dennis Campbell; Haxtun - Richard Fryrear; Wray- Jim Roberts. We also gratefully acknowledge Triumph Seed Co., Inc. (P.O. Box 050, Ralls TX 79357) for oil analyses and Red River Commodities, Inc. (30 East College Drive, Colby KS 6770) for seed-sizing analyses.

Technical Report TR 00- Agricultural Department of Cooperative December Experiment Soil and Crop Extension 000 Station Sciences TABLE OF CONTENTS Introduction... The 000 Cropping Season... Cultural Conditions for Sunflower ing in 000 Table... Oil Sunflower Performance Data... Akron Dryland Table -3... Bethune Irrigated Table 4...3 Cheyenne Wells Dryland Table 5-6...4 Wray Dryland Table 7-8...5 Confection Sunflower Performance Data...6 Akron Dryland Table 9-...6 Bethune Irrigated Table -3...7 Cheyenne Wells Dryland Table 4-6...8 Wray Dryland Table 7-9...9 Seed Company Entrants in the 000 Colorado Sunflower Performance Trials...9 Entry Forms for 00 Trials... 0 i

000 COLORADO SUNFLOWER PERFORMANCE TRIALS Introduction In ten short years sunflower have become an important crop in eastern Colorado with acreage surpassing a record 300,000 acres in 999 and a crop value of over $30 million. Statewide, sunflower for oil accounted for over $7 million and confection sunflower production was valued at $3 million. Colorado acreage in 000 planted to sunflower is estimated to be 75,000 acres and approximately $.3 million was spent by Colorado sunflower producers on hybrid seed to plant this acreage. assist Colorado sunflower producers to make the best seed decision, CSU personnel evaluate commercial sunflower hybrids at different locations in northeastern Colorado. The 000 Cropping Season The results of our 000 dryland sunflower oil and confection trials at Akron, Cheyenne Wells, and Wray are shown below. The Haxtun dryland trial was lost to poor emergence resulting from dry planting conditions and followed by mid-summer drought. The 000 irrigated sunflower trial was moved from Bethune to four miles north of Burlington this year. The two locations are approximately 5 miles apart so the Bethune trial name was kept and results are averaged over two and three years. A randomized complete block design with three replicates was used for all trials. The center two rows of four row plots (30" spacing between rows and 40' long) were harvested for grain yield. Oil hybrids were planted at 9,000 seeds/acre under dryland conditions and at 4,000 seeds/acre under irrigation. Confection hybrids were planted at 5,000 seeds/acre under dryland conditions and at 7,000 seeds/acre under irrigation. Seed yields are reported in pounds per acre adjusted to 0% moisture content. The least significant difference (LSD) value, alpha=0.30, is reported for yield. Information regarding sunflower production practices and pest control can be obtained from the following source: High Plains Sunflower Production and IPM, Bulletin No. 556A, Colorado State University Cooperative Extension, Fort Collins, 8053. Call CERC at (970) 49-698 to order your copy. Table. Cultural conditions for sunflower testing in 000. Akron Bethune Cheyenne Wells Wray Soil Type Ascalon Sandy Loam Kieth Silt Loam Kieth-Ulysses Silt Loam Colby Silt Loam Previous Crop Corn Corn Wheat Wheat Fertilization N acre - P O 5 acre - Herbicide 50 0 Prowl Spartan 0 Sonalan 0G Post Insecticide None Parathion Warrior 60 0 Spartan None 0 0 Roundup None Fungicide None Folicure - for rust None None Irrigation None Sprinkler None None

Table. Dryland sunflower oil performance at Akron in 000. Height Density Lodging Oil lb/ac bu/ac in plants/a % % Croplan CL385 NS 847.4 35 663 36.59 Interstate IS X74066 664 0.5 39 007 35.97 Mycogen 8468 607 3.5 38 363 0 36.55 Garst IS 4340 457 0.9 36 30 0 37.65 Triumph 65 450 8.7 44 455 0 36.83 Garst IS 6767 446 4.3 43 550 35.7 Garst Hysun 450 49 4.4 33 6 35.97 Pioneer brand 63M80 33 3. 4 869 37.6 Mycogen 8377 NS 33 4.6 45 500 0 37. Triumph 56 30 0.9 4 994 35.80 Pioneer brand 63A70 95 3. 48 088 38.55 DEKALB DK3900 74 5.0 36 55 0 37.30 Croplan CL345 NS 4 4.8 46 9 35.9 Pioneer brand 63M9 05 5.6 44 460 37.05 Interstate IS X7409 03.7 38 3893 35.59 Garst IS 4049 078 4.0 44 83 0 36.77 DEKALB DKF3-0 NS 036 6.3 46 8 35.87 Pioneer brand 63A 08 5.3 44 430 35.50 DEKALB DKF36-40 NS 005 4.6 43 5 5 37.0 Average 37 3.9 4 073 36.56 CV%.8 LSD (0.30) 59.7 Trial conducted on Jason Shook farm; seeded 6/4 and harvested 0/8. Table 3. -yr average dryland sunflower oil performance at Akron, 999-00. lb/ac bu/ac Triumph 56 636 3.5 DEKALB DK3900 594 6.0 Garst IS 4049 83 5.5 Garst IS 6767 547 5. Garst Hysun 450 709 5. Pioneer brand 63A70 65 4.4 Average 489 5.0

Table 4. Irrigated sunflower oil performance at Bethune in 000. Height Density Lodging Oil lb/ac bu/ac in plants/a % % Mycogen Cavalry 35 5.3 58 3489 4 39.03 Pioneer brand 63M9 36 7.3 60 563 38.36 Kaystar 950 987 8.6 63 85 9 33.84 Kaystar 9404 983 6. 60 343 8 37.74 Garst IS 4049 958 8.9 6 378 9 38.77 DEKALB DK3900 948 7.9 53 33 9 38.58 Garst IS 6767 99 6.8 60 3699 7 37.8 Interstate IS X7409 865 5. 56 776 0 38.9 Mycogen 8488 NS 855 8. 6 67 8 39.34 DEKALB DKF36-40 NS 847 6.4 59 34 4 37.33 Novartis NK brand 78 769.8 56 57 6 37.4 DEKALB DKF9-90 763 9.5 56 3497 7 4.65 Novartis NK brand T46-R9 753 8.8 58 44 37.03 Interstate IS X74066 730 7.6 57 500 8 39.38 Triumph TRX9443 74 6.9 60 74 7 39.66 Triumph 65 600 7.7 59 4303 6 37.7 Pioneer brand 63M80 59 4.3 55 3730 3 40.4 Garst Hysun 450 587 7.0 5 893 7 38.8 Triumph 545A 584 7.7 60 48 3 4.57 Seeds 000 Mustang 544 9. 58 488 5 38.33 Triumph 56 54 8.8 64 337 9 39.54 Pioneer brand 63A70 504 7.7 54 70 5 4. DEKALB EX998 NS 49 5.0 57 40 3 37.65 DEKALB EX995 NS 49 9.3 56 4063 7 38.05 DEKALB DK387 NS 456 4. 58 959 38.73 DEKALB DKF3-0 NS 45 6.7 59 3097 6 37.36 Interstate IS K4978 44 4. 6 3056 4.7 DEKALB EX990 NS 40 5.3 56 564 3 38.63 DEKALB EX997 NS 405 8.6 63 563 38.46 Garst IS 4340 373 30.6 5 3573 38.3 Seeds 000 Maverick 370 5.5 60 34 4 37.3 Seeds 000 Bronco 6 9. 5 686 3 39.3 Pioneer brand 63A 034 6.0 40 349 5 36.79 Average 654 7. 57 3304 0 38.6 CV% 8. LSD (0.30) 56.8 Trial conducted on Dale Hansen farm; seeded 5/30 and harvested 0/. Trial irrigated two times. 3

Table 5. Dryland sunflower oil performance at Cheyenne Wells in 000. Height Density Lodging Oil lb/ac bu/ac in plants/a % % Seeds 000 Bronco 3 8.9 4 0864 7 39.0 Interstate IS X7409 0 8.5 5 967 3 38.73 Garst IS 4049 9 8.8 56 385 40.4 Pioneer brand 63M9 4 8.6 48 0549 5 40.8 Triumph 56 3 9.4 55 996 6 39.63 Novartis NK brand 78 3 7. 48 73 7 37.46 Garst Hysun 450 05 8.6 4 989 6 4.64 Interstate IS X74066 089 7.7 50 9559 5 39. Novartis NK brand T46-R9 088 8.3 5 0953 6 38.5 Kaystar 9404 065 9.9 48 0606 6 37.58 Garst IS 4340 047 8.7 46 0965 7 40.93 Croplan CL385 NS 04 8.8 39 995 0 39.37 Mycogen Cavalry 036 30.5 5 0857 7 4.83 Interstate IS K4978 036 7.0 54 68 3 37.8 Pioneer brand 63M80 035 8.3 5 845 3 40.04 Seeds 000 Mustang 975 9.0 54 456 0 37.80 Pioneer brand 63A70 964 8. 47 066 4.8 Garst IS 6767 97 30.4 46 07 9 39.64 DEKALB DK3900 93 9. 46 0894 4 39.83 Kaystar 950 90 7.6 5 789 3 38.7 Seeds 000 Maverick 89 8.5 47 0395 3 37. DEKALB DKF36-40 NS 85 9. 45 0730 5 37.68 DEKALB DKF9-90 844 8.9 45 033 4 4.3 Mycogen 837 83 9.8 4 758 4 4.50 Pioneer brand 63A 8 7.4 35 0755 3 36.95 Triumph 540 80 8. 46 68 3 39.68 DEKALB DKF3-0 NS 76 8.6 53 8 8 38.8 Average 999 8.7 48 086 0 39.35 CV% 7.7 LSD (0.30) 5. Trial conducted on Dennis Campbell farm; seeded 6/6 and harvested 0/7. Table 6. -yr average dryland sunflower oil performance at Cheyenne Wells, 999-00. lb/ac bu/ac Novartis NK brand 78 358 6. Kaystar 950 099 7.4 Pioneer brand 63M9 5 7.4 DEKALB DK3900 098 8. Novartis NK brand T46-R9 38 7.4 Pioneer brand 63M80 8 7.5 Mycogen 837 65 8. Triumph 56 44 8.0 Interstate IS K4978 80 6. Garst Hysun 450 077 7. Garst IS 6767 050 8.7 Garst IS 4049 34 7.8 Triumph 540 080 6.8 Pioneer brand 63A70 045 6.6 Average 74 7.4 4

Table 7. Dryland sunflower oil performance at Wray in 000. Height Density Lodging Oil lb/ac bu/ac in plants/a % % Mycogen 8377 NS 448 4. 53 9983 39.64 DEKALB DK3900 336 8.4 44 359 5 38.66 Triumph 65 3 9. 5 309 0 38.93 DEKALB DKF3-0 NS 305 4. 53 47 0 36.53 Pioneer brand 63M80 67 6.8 5 0896 39. Pioneer brand 63M9 66 5. 49 676 39.59 Pioneer brand 63A70 34 5.0 54 38 3 38.75 Interstate IS X74066 7 5.4 46 74 38.40 Kaystar 950 63 7.7 5 73 3 37. Garst IS 4340 0 7.5 49 975 4 39.7 Garst IS 6767 067 7. 5 04 36.7 Mycogen 8468 058 6.4 4 34 7 38.3 Interstate IS X7409 057 8.0 46 90 7 38.4 DEKALB DKF9-90 07 7. 5 600 38.63 Triumph 56 994 6.9 59 9 3 38.9 Garst Hysun 450 978 5.0 38 037 4 38.74 Kaystar 9404 973. 53 4574 0 37.5 DEKALB DKF36-40 NS 959 8.5 55 309 36.79 Pioneer brand 63A 953 5. 49 86 8 37.09 Garst IS 4049 935 5.5 53 354 38.54 Average 33 6. 50 969 3 38.9 CV% 9. LSD (0.30) 86. Trial conducted on Jim Roberts farm; seeded 6/ and harvested 0/0. Table 8. -yr average dryland sunflower oil performance at Wray, 999-00. lb/ac bu/ac Triumph 65 930 9.6 DEKALB DK3900 69 30.0 Pioneer brand 63M9 55 8. Triumph 56 534 8.9 Garst IS 6767 468 8.8 Garst Hysun 450 439 6.4 Garst IS 4049 59 7.4 Pioneer brand 63M80 47 8.5 Kaystar 9404 47 4.8 Pioneer brand 63A70 399 7.8 Average 548 8. 5

Table 9. Dryland sunflower confection performance at Akron in 000. Height Density Lodging lb/ac bu/ac in plants/a % Sigco Sun EXP3993 84 4.9 48 8943 3 Pioneer brand 63C40 568 9. 48 0499 Triumph 765C 49 8.8 4 Triumph 766CRT 473 7. 4 8969 4 Seeds 000 X347 47 9.0 4 035 0 Seeds 000 X3988 396 8. 4 04 Red River RRC 58 364 9.9 39 0696 0 Sigco Sun EXP38 76 9.3 4 954 Agway Exp. 00 59 6.6 43 9809 Sigco Sun SS-6 8 9.3 48 03 Red River RRC 3 76 8.3 47 89 Red River RRC 43 6 8.0 4 36 Average 385 8. 44 0349 CV% 8.6 LSD (0.30) 3.7 Trial conducted on Jason Shook farm; seeded 6/4 and harvested 0/8. Table 0. -yr average dryland sunflower confection performance at Akron, 999-00. lb/ac bu/ac Red River RRC 58 76 9.8 Red River RRC 43 688 9.0 Sigco Sun SS-6 66 9.8 Triumph 766CRT 5 8.3 Red River RRC 3 500 9. Triumph 765C 456 9. Average 590 9. Table. Dryland sunflower confection at Akron in 000, percent by seed size screen size. /64 0/64 9/64 8/64 7/64 6/64 Above /64 Below 6/64 Agway Exp. 00 3.3 7.8.0.6 6.3 Pioneer brand 63C40 6.0 33. 9.0 3.6 8. Red River RRC 58 8.6 6.3 4.6 6.6 3.9 Red River RRC 43 0..3 5.9 0.0.5 Red River RRC 3 4.7 5.0 5.6. 3. Seeds 000 X347 0.6 9.8 7. 4.7 8.0 Seeds 000 X3988 5. 8.8 30. 7. 8.7 Sigco Sun EXP38 9.0 4.9 5.9 7.7.4 Sigco Sun EXP3993 4.8 0.9 9.. 3.3 Sigco Sun SS-6 7.5 7.3 6. 8.7 0.4 Triumph 765C 0.6 9. 4. 4.6.3 Triumph 766CRT 0.4 8. 30.3. 9.6 6

Table. Irrigated sunflower confection performance at Bethune in 000. Height Density Lodging lb/ac bu/ac in plants/a % Sigco Sun EXP3994 30 0.0 68 0300 4 Sigco Sun EXP3993 9 8.4 6 0344 6 Triumph TRX0453CRT 09 8.9 64 9569 7 Interstate IS 8048 996 0.9 6 0666 4 Triumph 766CRT 96 8.4 59 853 9 Red River RRC 3 90 9.8 56 5088 5 Seeds 000 X3988 90 0.8 6 9740 7 Red River RRC 58 8 9.7 6 949 9 Triumph TRX045CRT 83 0.3 63 379 9 Triumph 765C 809 8.5 59 985 3 Pioneer brand 63C40 78 0.4 58 57 9 Sigco Sun EXP38 755.9 60 496 7 Agway Exp. 00 70 0.6 63 335 5 Sigco Sun SS-6 657 8.4 53 0547 5 Seeds 000 X347 56.7 58 966 3 Red River RRC 43 335 9.8 5 406 8 Average 847 9.9 60 577 9 CV% 4.5 LSD (0.30) 30.3 Trial conducted on Dale Hansen farm; seeded 5/30 and harvested 0/. Trial irrigated two times. Table 3. Irrigated sunflower confection at Bethune in 000, percent by seed size screen size. /64 0/64 9/64 8/64 7/64 6/64 Above /64 Below 6/64 Agway Exp. 00 4.8 9. 4.9.4 8.5 Interstate IS 8048 6. 8.8.3 3.8 9.5 Pioneer brand 63C40 3.8 39.6 7..0 7.5 Red River RRC 3 6. 9.3 3.8 3.8 6.6 Red River RRC 43 0.8 3.0 3.5 9.9 6. Red River RRC 58 5.4 34.0.4 7.6 5. Seeds 000 X347.3 8.3.3 6..8 Seeds 000 X3988 7.0 37.4 6..4 7.7 Sigco Sun EXP38 4.4 4. 8.5 0.3.6 Sigco Sun EXP3993 5.7.0 8.5 4.4 0.3 Sigco Sun EXP3994 3.5.0 6.3 3. 0. Sigco Sun SS-6 3.4 3.5.7.8 9.6 Triumph 765C 5.9 30.8.3 9. 6. Triumph 766CRT 3.5 9.7 0.7 9.8.5 Triumph TRX045CRT 0. 9.7 3.0. 6.7 Triumph TRX0453CRT 3.4 3.0. 9.3 6.0 7

Table 4. Dryland sunflower confection performance at Cheyenne Wells in 000. Height Density Lodging lb/ac bu/ac in plants/a % Sigco Sun EXP3993 59 9.8 53 7006 6 Triumph 766CRT 330 6.6 45 005 5 Triumph 765C 85.8 5 849 3 Red River RRC 3 34 9.3 5 890 3 Sigco Sun EXP38 93 7.3 44 904 Red River RRC 58 53 8.3 48 864 5 Sigco Sun SS-6 0 8.9 53 9743 5 Pioneer brand 63C40 03 9.7 44 798 8 Red River RRC 43 950 8. 48 9654 5 Average 0 8.9 49 8755 5 CV%. LSD (0.30) 3. Trial conducted on Dennis Campbell farm; seeded 6/6 and harvested 0/7. Table 5. -yr average dryland sunflower confection performance at Cheyenne Wells, 999-00. lb/ac bu/ac Triumph 765C 395. Triumph 766CRT 35 8.5 Average 355 9.8 Table 6. Dryland sunflower confection at Cheyenne Wells in 000, percent by seed size screen size. /64 0/64 9/64 8/64 7/64 6/64 Above /64 Below 6/64 Pioneer brand 63C40 8.4 4. 4.4 3.9 9. Red River RRC 58.8. 6.8 8.9 0. Red River RRC 3 9.6 36.0 5.7.4 6. Red River RRC 43.6 7.9 8. 8.8.7 Sigco Sun EXP38 7.4 5.6 6. 6.7 4.0 Sigco Sun EXP3993 8.3 8.5. 0.4 0.4 Sigco Sun SS-6 7.5 3. 6.7 8.6 3.8 Triumph 765C 3.5 3.0 5.4 3. 7.0 Triumph 766CRT 0.6 6.7 3.0 6.4 5. 8

Table 7. Dryland sunflower confection performance at Wray in 000. Height Density Lodging lb/ac bu/ac in plants/a % Triumph 766CRT 54. 5 9537 4 Interstate IS 8048 75.4 5 9404 Triumph 765C 06.3 50 0760 Pioneer brand 63C40 00. 56 985 3 Red River RRC 3 00.6 55 90 Red River RRC 43 835.4 46 08 Red River RRC 58 707.7 49 08 Average 006. 5 044 CV% 7.7 LSD (0.30) 58.0 Trial conducted on Jim Roberts farm; seeded 6/ and harvested 0/0. Table 8. -yr average dryland sunflower confection performance at Wray, 999-00. lb/ac bu/ac Triumph 766CRT 559.4 Triumph 765C 544.5 Interstate IS 8048 378 3.5 Average 494.8 Table 9. Dryland sunflower confection at Wray in 000, percent by seed size screen size. /64 0/64 9/64 8/64 7/64 6/64 Above /64 Below 6/64 Interstate IS 8048 7. 3.3 30.3 4.6 4.7 Pioneer brand 63C40 5.4 9.5 33.0 7.4 4.8 Red River RRC 58.7 3.9 8.6 8.0 6.7 Red River RRC 3 6..3 8.7 35.3 9. Red River RRC 43 5. 4.7 8.8 30.7 0.7 Triumph 765C 0.7 8.3 9.8 8. 3.0 Triumph 766CRT. 0.3 4.6 38.4 4. Seed Company Entrants in the 000 Colorado Sunflower Performance Trials BRAND/HYBRID ENTRANT ADDRESS TELEPHONE Agway Agway, Inc. 0 Clement Avenue, Grandin, ND 58038 (70) 484-533 Croplan Croplan Genetics PO Box 9, Minot, ND 5870 (70) 85-3556 DEKALB Monsanto 300 Sycamore Road, Dekalb, IL 605 (85) 758-933 Interstate/Garst Interstate Seed PO Box 338, West Fargo, ND 58078 (70) 8-3373 Kaystar Kaystar Seed PO Box 947, Huron, SD 57350 (605) 35-879 Mycogen Mycogen Seeds 340 Corporate Center Curve, Eagan, MN 55-33 (65) 405-5973 Northrup King Novartis Seeds One North Main, Ste. 57, Hutchinson, KS 6750-58 (36) 664-9830 Pioneer Pioneer Hi-Bred Int l., Inc. 0 Gateway Mall, Ste. 300, Lincoln, NE 68505-449 (40) 467-5458 Red River Red River Commodities, Inc. 30 East College Drive, Colby, KS 6770 (785) 46-39 SEEDS 000 SEEDS 000 PO Box 00, Breckenridge, MN 5650 (8) 643-40 SIGCO SIGCO Sun Products, Inc. PO Box 33, Breckenridge, MN 5650 (8) 643-8467 Triumph Triumph Seed Co., Inc. PO Box 050, Ralls, TX 79357 (800) 530-4789 9

Entry Forms for 00 Trials Entry forms for 00 trials may be obtained from the Department of Soil and Crop Sciences, Colorado State University, Cynthia Johnson, C-4 Science Building, Fort Collins, CO 8053-70; Telephone (970) 49-94; Fax (970) 49-758; e-mail cjohnson@agsci.colostate.edu or web site http://www.colostate.edu/depts/soilcrop/ extension/cropvar/index.html. Additional copies of this report may be ordered from the Department of Soil and Crop Sciences, Colorado State University, Cynthia Johnson, C-4 Science Building, Fort Collins, CO 8053-70; Telephone (970) 49-94; Fax (970) 49-758; or e-mail cjohnson@agsci.colostate.edu. Colorado State University does not discriminate on the basis of race, color, religion, national origin, sex, age, veteran status, or handicap. The University complies with the Civil Right Act of 964, related Executive Orders 46 and 375, Title IX of the Education Amendments Act of 97, Sections 503 and 504 of the Rehabilitation Act of 973, Section 40 of the Vietnam Era Veteran s Readjustment Act of 974, the Age Discrimination in Employment Act of 967, as amended, and all civil rights laws of the State of Colorado. Accordingly, equal opportunity for employment and admission shall be extended to all persons and the University shall promote equal opportunity and treatment through a positive and continuing affirmative action program. The Office of Equal Opportunity is located in Room, Spruce Hall. In order to assist Colorado State University in meeting its affirmative action responsibilities, ethnic minorities, women, and other protected class members are encouraged to apply and to so identify themselves.