Athens, Georgia: Dryland Later Maturity Cotton Variety Performance, 2016

Transcription

1 Athens, Georgia: Variety Lint Yield Lint* Index* Length* Strength* Micronaire* PHY 496 W3RF PHY 487 WRF ST 6448GLB GA DP 1639 B2XF CG 3787 B2RF DG 3757 B2XF NG 5007 B2XF BX 1739GLT DP 1646 B2XF PHY 444 WRF ST 4848GLT PHY 499 WRF PHY 333 WRF DP 1555 B2RF ST 6182GLT GA GA DP 1558NR B2RF MON 15R535B2XF Croplan 3885 B2XF BRS ST 5115GLT DP 1538 B2XF ST 4949GLT DP 1553 B2XF Average LSD at 10% Level CV %

2 Athens, Georgia: (Continued) * A random quality sample was taken on the picker during harvest and ginned in small gin in the SWVT Lab on the UGA Griffin Campus to determine lint fraction. A lint sample was sent to the USDA classing office in Macon, Georgia, for quality testing. Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: May 3, October 5, seeds/foot in 36" rows. Madison A and B. P = Very High, K = High, and ph = lb N, 78 lb P 2 O 5, and 78 lb K 2 O/acre. Sidedress: 94 lb N/acre. Fallow. Disked and rototilled; Glyphosate used for burndown; Prowl, Reflex, Cotoran, Staple, Poast, Diuron, MSMA, and Envoke used for weed control; Folex and Clean Pik used for defoliants; Super Boll and Response used for boll openers; Acephate used for insect control. May June July Aug. Sept. Rainfall (in): Trials conducted by H. Jordan Jr., G. Ware, and K. Roach. 45

3 Midville, Georgia: Variety Lint Yield Lint* Index* Length* Strength* Micronaire* PHY 444 WRF ST 6182GLT Croplan 3885 B2XF BX 1739GLT DP 1725 B2XF ST 4949GLT DP 1646 B2XF DP 1538 B2XF ST 6448GLB DP 1555 B2RF PHY 496 W3RF ST 4848GLT PHY 499 WRF DP 1639 B2XF DG 3757 B2XF ST 5115GLT GA PHY 487 WRF PHY 333 WRF NG 5007 B2XF BRS GA DP 1558NR B2RF DP 1553 B2XF CG 3787 B2RF GA Average LSD at 10% Level N.S CV %

4 Midville, Georgia: (Continued) * A random quality sample was taken on the picker during harvest and ginned in small gin in the SWVT Lab on the UGA Griffin Campus to determine lint fraction. A lint sample was sent to the USDA classing office in Macon, Georgia, for quality testing. 1. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore, an LSD value was not calculated. Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Peanuts. Management: May 9, October 6, seeds/foot in 36" rows. Tifton loamy sand. P = High, K = Medium, and ph = lb N, 30 lb P 2 O 5, and 80 lb K 2 O/acre. Sidedress: 65 lb N and.25 lb Boron/acre. Disked and subsoiled/bedded; Pendimethalin, Diuron, Reflex, Staple, MSMA, Envoke, and Select used for weed control; Acephate and Prevathon used for insect control; Telon II used for nematode control; Mepiquat, Def, Drop, and Ethephon used for PGR. May June July Aug. Sept. Rainfall (in): Trials conducted by R. Brooke, D. Dunn, and G. South. 47

5 Plains, Georgia: Dryland Later Maturity Cotton Strains Performance, 2016 Variety Lint Yield Lint* Index* Length* Strength* Micronaire* DP 1555 B2RF PHY 496 W3RF PHY 499 WRF PHY 444 WRF ST 6182GLT CG 3787 B2RF Croplan 3885 B2XF DG 3757 B2XF DP 1558NR B2RF GA DP 1646 B2XF PHY 487 WRF GA ST 6448GLB PHY 333 WRF DP 1538 B2XF DP 1639 B2XF BRS NG 5007 B2XF ST 4848GLT DP 1725 B2XF GA ST 4949GLT ST 5115GLT BX 1739GLT DP 1553 B2XF Average LSD at 10% Level CV % * A random quality sample was taken on the picker during harvest and ginned in small gin in the SWVT Lab on the UGA Griffin Campus to determine lint fraction. A lint sample was sent to the USDA classing office in Macon, Georgia, for quality testing. Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Management: May 4, October 18, seeds/foot in 36" rows. Greenville sandy loam. P = Medium, K = High, and ph = lb N, 16 lb P 2 O 5, 60 lb K 2 O, and 1000 lb lime/acre. Sidedress: 80 lb N/acre. Soybeans. Disked, subsoiled/bedded, rototilled, and cultivated; Prowl, Reflex, Diuron, MSMA, Staple used for weed control; Bidrin and Bifenthrin used for insect control; Mepiquate Chloride used for PGR. May June July Aug. Sept. Rainfall (in): Trials conducted by W. Jones, D. Dunn, R. Brooke, and G. South. 48

6 Tifton, Georgia: Variety Lint Yield Lint* Index* Length* Strength* Micronaire* DP 1555 B2RF Croplan 3885 B2XF PHY 496 W3RF PHY 444 WRF GA DG 3757 B2XF DP 1538 B2XF DP 1558NR B2RF GA ST 4848GLT DP 1725 B2XF PHY 487 WRF ST 6182GLT DP 1639 B2XF GA PHY 499 WRF ST 6448GLB NG 5007 B2XF ST 4949GLT DP 1646 B2XF CG 3787 B2RF BRS PHY 333 WRF DP 1553 B2XF ST 5115GLT BX 1739GLT Average LSD at 10% Level N.S CV %

7 Tifton, Georgia: (Continued) * A random quality sample was taken on the picker during harvest and ginned in small gin in the SWVT Lab on the UGA Griffin Campus to determine lint fraction. A lint sample was sent to the USDA classing office in Macon, Georgia, for quality testing. 1. The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore, an LSD value was not calculated. Planted: Harvested: Seeding Rate: Soil Type: Soil Test: Fertilization: Previous Crop: Peanuts. Management: May 2, September 28, seeds/foot in 36" rows. Tifton sandy loam. P =Low, K = Medium, and ph = lb N, 80 lb P 2 O 5, and 80 lb K 2 O/acre. Sidedress: 75 lb N and 30 lb K 2 O/acre. Disked and subsoiled/bedded; Reflex, Cotoran, Warrant, Dual Magnum, and Select Max used for weed control; Besiege and Knack used for insect control; Prep, Folex, and Dropp used for defoliation. May June July Aug. Sept. Rainfall (in): Trials conducted by S. Willis, R. Brooke, D. Dunn, and G. South. 50

8 Variety Yield Summary of Dryland Later Maturity Cotton Varieties, 2016 Lint Yield a 4-Loc. Athens Midville Plains Tifton Average lb/acre Lint Unif. Index Length Strength Mic. % % in g/tex units PHY 496 W3RF PHY 444 WRF T DP 1555 B2RF DG 3757 B2XF Croplan 3885 B2XF ST 6182GLT T PHY 499 WRF ST 6448GLB GA T PHY 487 WRF T DP 1646 B2XF T DP 1639 B2XF T T CG 3787 B2RF T ST 4848GLT NG 5007 B2XF DP 1558NR B2RF GA DP 1538 B2XF DP 1725 B2XF T BX 1739GLT PHY 333 WRF GA T ST 4949GLT BRS ST 5115GLT DP 1553 B2XF Average LSD at 10% Level N.S. b N.S. CV % a Superscript numbers indicate ranking at that location. b The F-test indicated no statistical differences at the alpha = 0.10 probability level; therefore, an LSD value was not calculated. 51

9 Two-Year Summary of Dryland Later Maturity Cotton Varieties at Four Locations 1, Variety Lint Yield Lint Index Length Strength Micronaire DP 1555 B2RF PHY 444 WRF ST 6182GLT DP 1646 B2XF PHY 499 WRF DP 1558NR B2RF DP 1538 B2XF CG 3787 B2RF DP 1639 B2XF NG 5007 B2XF ST 6448GLB GA DP 1553 B2XF GA ST 5115GLT GA PHY 333 WRF BRS Average LSD at 10% Level CV % Athens, Midville, Plains, and Tifton. 52