Cotton Variety Selection and Management Guy D. Collins, Ph.D. Cotton Extension Associate Professor Cotton County Meetings
Successful Launch in 2015 !!
NC On-Farm Cotton Variety Evaluation Program 2015 Variety Entries NG 3405 B2XF DP 1538 B2XF NG 3406 B2XF DP 1522 B2XF PHY 495 W3RF PHY 333 WRF ST 4946 GLB2 PHY 444 WRF ST 4747 GLB2 DG 3385 B2XF
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Thank You!! NCSU County Agents Consultants Seed Companies Cooperating Growers
2015 Costs of Improper Variety Selection: $0.65/lb Variety Average Selection Range of costs Cost Error Large Error (Top vs Bottom variety) $103 to $315 per acre $156 Small Error $69 to $236 per acre $120 (Top 3 vs the others) Improper Variety Selection could ’ ve cost NC growers $45,600,000 to $59,280,000 on AVG in 2015 when choosing among only best varieties!!!
Variety selection considerations Understand your Yield Limiting Factors.......field x field basis • Water (soils), weed control, nematodes, plant growth, realistic yield potential Be CAUTIOUS with field observations !!! • Every variety can perform well or poorly • Yield is influenced by small variations in environment • Evaluate varieties under the SAME conditions !!! 2015 trials Lowest Yield Env. Highest Yield Env. Top Variety 464 1337 Bottom Variety 287 1093 Difference in Yield 177 244 Stability is the best predictor of performance • Every variety can win or lose a trial….no variety wins them all!! • How frequently a variety performs at or near the top determines stability = strong performance across soils, weather and rainfall patterns, planting dates, grower management practices, etc • Observe Multi-Location and Multi-Year Data (OVT & On-Farm Trials) • Plant multiple varieties (all have strengths and weaknesses)
NC On-Farm Trials (Stability) % of trials in Combined highest group Variety AVG Yield % #1 % Top 2 % Top 3 (p<0.1) 988 47 76 82 81 DP 1538 B2XF 948 12 29 47 63 ST 4946 GLB2 948 18 24 35 75 DP 1522 B2XF 925 6 18 35 50 PHY 495 W3RF 906 6 24 35 44 PHY 333 WRF 900 12 12 29 50 PHY 444 WRF 897 0 6 18 38 DG 3385 B2XF 880 0 0 6 31 NG 3405 B2XF 851 0 12 12 38 ST 4747 GLB2 847 0 0 0 31 NG 3406 B2XF
NC OVT 2015 (TOP 20) AVG 1 2 3 4 5 6 Variety Yield % NS p<0.1 DP 1558 NR B2RF 530 706 963 998 1258 1336 965 67 508 792 966 999 1158 1334 960 50 DG 3757 B2XF 427 797 BX 1532 GLT 1013 1006 1250 1261 959 67 358 773 1028 999 1197 1385 957 67 BX 1531 GLT 492 785 949 1065 1141 1288 953 33 DG 3526 B2XF 550 768 943 938 1176 1292 945 50 NG 3522 B2XF 512 700 924 1089 1204 1225 942 33 DP 1639 B2XF 470 816 990 981 1100 1285 940 50 DP 1646 B2XF 529 805 942 1100 1136 1090 934 33 DP 1522 B2XF 443 923 955 901 1229 1151 934 33 PHY 333 WRF 407 799 834 1071 1196 1279 931 50 DP 1614 B2XF PHY 499 WRF 424 754 869 934 1279 1326 931 33 438 849 939 1050 1066 1212 926 17 MON 15R513B2XF 449 719 837 908 DP 1555 B2RF 1192 1423 921 33 438 736 895 957 1258 1214 916 17 PHY 495 W3RF 549 784 869 916 1104 1276 916 33 DP 1538 B2XF 458 775 967 899 1276 1110 914 17 PHY 312 WRF 408 852 993 895 1107 1218 912 17 ST 4946 GLB2 573 702 986 837 1172 1158 905 50 DP 1553 B2XF 402 730 1061 910 1197 1128 905 33 ST 6182 GLT 440 753 901 974 1130 1212 Trial AVG
NC OVT 2015 (TOP 20) AVG 1 2 3 4 5 6 Variety Yield % NS p<0.1 DP 1558 NR B2RF 530 706 963 998 1258 1336 965 67 508 792 966 999 1158 1334 960 50 DG 3757 B2XF 427 797 BX 1532 GLT 1013 1006 1250 1261 959 67 358 773 1028 999 1197 1385 957 67 BX 1531 GLT 492 785 949 1065 1141 1288 953 33 DG 3526 B2XF 550 768 943 938 1176 1292 945 50 NG 3522 B2XF 512 700 924 1089 1204 1225 942 33 DP 1639 B2XF 470 816 990 981 1100 1285 940 50 DP 1646 B2XF 529 805 942 1100 1136 1090 934 33 DP 1522 B2XF 443 923 955 901 1229 1151 934 33 PHY 333 WRF 407 799 834 1071 1196 1279 931 50 DP 1614 B2XF PHY 499 WRF 424 754 869 934 1279 1326 931 33 438 849 939 1050 1066 1212 926 17 MON 15R513B2XF 449 719 837 908 DP 1555 B2RF 1192 1423 921 33 438 736 895 957 1258 1214 916 17 PHY 495 W3RF 549 784 869 916 1104 1276 916 33 DP 1538 B2XF 458 775 967 899 1276 1110 914 17 PHY 312 WRF 408 852 993 895 1107 1218 912 17 ST 4946 GLB2 573 702 986 837 1172 1158 905 50 DP 1553 B2XF 402 730 1061 910 1197 1128 905 33 ST 6182 GLT 440 753 901 974 1130 1212 Trial AVG
Low Yielding Environments (< 1000 lbs/A) 12 Trials Variety AVG Yield DP 1538 B2XF 790 DP 1522 B2XF 767 ST 4946 GLB2 754 PHY 333 WRF 736 PHY 495 W3RF 727 DG 3385 B2XF 720 NG 3406 B2XF 698 NG 3405 B2XF 687 PHY 444 WRF 680 ST 4747 GLB2 665
High Yielding Environments (> 1000 lbs/A) 11 Trials Variety AVG Yield DP 1538 B2XF 1165 ST 4946 GLB2 1141 DP 1522 B2XF 1137 PHY 495 W3RF 1137 PHY 444 WRF 1131 PHY 333 WRF 1107 NG 3405 B2XF 1101 DG 3385 B2XF 1081 ST 4747 GLB2 1059 NG 3406 B2XF 1022
Northeastern NC 8 Trials Variety AVG Yield DP 1538 B2XF 1119 ST 4946 GLB2 1070 PHY 333 WRF 1058 PHY 495 W3RF 1054 PHY 444 WRF 1050 NG 3405 B2XF 1050 DP 1522 B2XF 1048 DG 3385 B2XF 1012 ST 4747 GLB2 970 NG 3406 B2XF 954
Blacklands 4 Trials Variety AVG Yield DP 1522 B2XF 929 ST 4747 GLB2 890 DP 1538 B2XF 870 PHY 495 W3RF 866 DG 3385 B2XF 851 NG 3406 B2XF 839 PHY 333 WRF 839 NG 3405 B2XF 823 ST 4946 GLB2 822 PHY 444 WRF 808
Central Coastal Plains 7 Trials Variety AVG Yield DP 1538 B2XF 992 PHY 495 W3RF 970 ST 4946 GLB2 958 DP 1522 B2XF 949 PHY 444 WRF 923 PHY 333 WRF 886 NG 3405 B2XF 884 DG 3385 B2XF 862 NG 3406 B2XF 861 ST 4747 GLB2 834
Southern Coastal Plains 3 Trials Variety AVG Yield DP 1538 B2XF 698 DP 1522 B2XF 692 PHY 333 WRF 684 ST 4946 GLB2 669 PHY 444 WRF 663 PHY 495 W3RF 651 DG 3385 B2XF 646 ST 4747 GLB2 612 NG 3406 B2XF 599 NG 3405 B2XF 584
Piedmont 2 Trials Variety AVG Yield PHY 333 WRF 1083 ST 4946 GLB2 1071 DP 1522 B2XF 1014 DG 3385 B2XF 1005 NG 3406 B2XF 968 DP 1538 B2XF 966 NG 3405 B2XF 926 PHY 495 W3RF 924 PHY 444 WRF 902 ST 4747 GLB2 827
NCSU OVT 2-YEAR Statistically highest group
NC On-Farm Trials (Fiber Quality) Combined Color Leaf Variety AVG Yield Lint % Micronaire Length Strength Uniformity Grade Grade DP 1538 988 42.1 4.9 1.08 27.3 81.3 41-3 3 B2XF ST 4946 948 39.5 4.9 1.11 29.2 82.2 52-2 5 GLB2 DP 1522 948 40.8 5.0 1.11 28.6 82.0 51-2 5 B2XF PHY 495 925 40.0 4.7 1.07 29.5 81.5 52-2 5 W3RF PHY 333 906 41.1 4.7 1.13 28.4 82.2 52-2 5 WRF PHY 444 900 41.0 4.3 1.18 29.9 82.6 41-2 4 WRF DG 3385 897 40.9 4.9 1.09 27.1 82.3 52-2 3 B2XF NG 3405 880 41.5 4.6 1.07 26.6 80.6 52-2 4 B2XF ST 4747 851 39.0 4.6 1.14 27.2 81.2 51-2 5 GLB2 NG 3406 847 39.9 4.7 1.08 26.9 81.4 51-3 4 B2XF
NC On-Farm Trials (Fiber Quality) % High MIC Average % High Average % Short & Short Variety Micronaire MIC Variety Length Staple Variety Staple DP 1522 4.97 59 PHY 444 1.18 0 DP 1538 29 DG 3385 4.89 47 ST 4747 1.14 0 PHY 495 24 ST 4946 4.87 53 PHY 333 1.13 6 NG 3405 24 DP 1538 4.85 35 ST 4946 1.11 6 DG 3385 18 NG 3406 4.75 35 DP 1522 1.11 12 NG 3406 18 PHY 495 4.70 35 DG 3385 1.09 18 DP 1522 12 PHY 333 4.68 24 NG 3406 1.08 35 PHY 333 6 ST 4747 4.64 29 DP 1538 1.08 47 ST 4946 6 NG 3405 4.63 29 PHY 495 1.07 41 ST 4747 0 PHY 444 4.34 12 NG 3405 1.07 41 PHY 444 0
NC Cotton Variety Performance Calculator
Resources for You Cotton Portal Website: http://cotton.ces.ncsu.edu/ NC Variety Calculator: https://trials.ces.ncsu.edu/cotton/ SeedMatrix.com: https://seedmatrix.com/CottonIncRegistration Facebook: North Carolina Cotton facebook.com/groups/344058599029946 Twitter: List: NCSU Cotton Keith Edmisten: @NCcotton Guy Collins: @Cotton_Guy Dominic Reisig: @DominicDReisig
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