Management Guy D. Collins, Ph.D. Cotton Extension Associate - - PowerPoint PPT Presentation

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Management Guy D. Collins, Ph.D. Cotton Extension Associate - - PowerPoint PPT Presentation

Feb 12, 2024 528 likes •943 views

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

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Guy D. Collins, Ph.D. Cotton Extension Associate Professor

Cotton Variety Selection and Management

Cotton County Meetings

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Successful Launch in 2015 !!

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NC On-Farm Cotton Variety Evaluation Program 2015 Variety Entries

DP 1538 B2XF DP 1522 B2XF NG 3405 B2XF NG 3406 B2XF PHY 495 W3RF PHY 333 WRF PHY 444 WRF ST 4946 GLB2 ST 4747 GLB2 DG 3385 B2XF

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Thank You!!

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Thank You!!

NCSU County Agents Consultants Seed Companies Cooperating Growers

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Variety Selection Error Range of costs Average Cost Large Error

(Top vs Bottom variety) $103 to $315 per acre

$156 Small Error

(Top 3 vs the others)

$69 to $236 per acre $120 2015 Costs of Improper Variety Selection: $0.65/lb

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!!!

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Understand your Yield Limiting Factors.......field x field basis

  • Water (soils), weed control, nematodes, plant growth, realistic

yield potential

Variety selection considerations

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 !!!

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)

2015 trials Lowest Yield Env. Highest Yield Env.

Top Variety 464 1337 Bottom Variety 287 1093 Difference in Yield 177 244

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Variety Combined AVG Yield % #1 % Top 2 % Top 3

% of trials in highest group (p<0.1) DP 1538 B2XF

988 47 76 82 81

ST 4946 GLB2

948 12 29 47 63

DP 1522 B2XF

948 18 24 35 75

PHY 495 W3RF

925 6 18 35 50

PHY 333 WRF

906 6 24 35 44

PHY 444 WRF

900 12 12 29 50

DG 3385 B2XF

897 6 18 38

NG 3405 B2XF

880 6 31

ST 4747 GLB2

851 12 12 38

NG 3406 B2XF

847 31

NC On-Farm Trials (Stability)

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Variety

1 2 3 4 5 6

AVG Yield % NS p<0.1

DP 1558 NR B2RF

530 706 963 998 1258 1336 965 67

DG 3757 B2XF

508 792 966 999 1158 1334 960 50

BX 1532 GLT

427 797 1013 1006 1250 1261 959 67

BX 1531 GLT

358 773 1028 999 1197 1385 957 67

DG 3526 B2XF

492 785 949 1065 1141 1288 953 33

NG 3522 B2XF

550 768 943 938 1176 1292 945 50

DP 1639 B2XF

512 700 924 1089 1204 1225 942 33

DP 1646 B2XF

470 816 990 981 1100 1285 940 50

DP 1522 B2XF

529 805 942 1100 1136 1090 934 33

PHY 333 WRF

443 923 955 901 1229 1151 934 33

DP 1614 B2XF

407 799 834 1071 1196 1279 931 50

PHY 499 WRF

424 754 869 934 1279 1326 931 33

MON 15R513B2XF

438 849 939 1050 1066 1212 926 17

DP 1555 B2RF

449 719 837 908 1192 1423 921 33

PHY 495 W3RF

438 736 895 957 1258 1214 916 17

DP 1538 B2XF

549 784 869 916 1104 1276 916 33

PHY 312 WRF

458 775 967 899 1276 1110 914 17

ST 4946 GLB2

408 852 993 895 1107 1218 912 17

DP 1553 B2XF

573 702 986 837 1172 1158 905 50

ST 6182 GLT

402 730 1061 910 1197 1128 905 33

Trial AVG

440 753 901 974 1130 1212

NC OVT 2015 (TOP 20)

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Variety

1 2 3 4 5 6

AVG Yield % NS p<0.1

DP 1558 NR B2RF

530 706 963 998 1258 1336 965 67

DG 3757 B2XF

508 792 966 999 1158 1334 960 50

BX 1532 GLT

427 797 1013 1006 1250 1261 959 67

BX 1531 GLT

358 773 1028 999 1197 1385 957 67

DG 3526 B2XF

492 785 949 1065 1141 1288 953 33

NG 3522 B2XF

550 768 943 938 1176 1292 945 50

DP 1639 B2XF

512 700 924 1089 1204 1225 942 33

DP 1646 B2XF

470 816 990 981 1100 1285 940 50

DP 1522 B2XF

529 805 942 1100 1136 1090 934 33

PHY 333 WRF

443 923 955 901 1229 1151 934 33

DP 1614 B2XF

407 799 834 1071 1196 1279 931 50

PHY 499 WRF

424 754 869 934 1279 1326 931 33

MON 15R513B2XF

438 849 939 1050 1066 1212 926 17

DP 1555 B2RF

449 719 837 908 1192 1423 921 33

PHY 495 W3RF

438 736 895 957 1258 1214 916 17

DP 1538 B2XF

549 784 869 916 1104 1276 916 33

PHY 312 WRF

458 775 967 899 1276 1110 914 17

ST 4946 GLB2

408 852 993 895 1107 1218 912 17

DP 1553 B2XF

573 702 986 837 1172 1158 905 50

ST 6182 GLT

402 730 1061 910 1197 1128 905 33

Trial AVG

440 753 901 974 1130 1212

NC OVT 2015 (TOP 20)

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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

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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

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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

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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

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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

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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

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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

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NCSU OVT 2-YEAR

Statistically highest group

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Variety Combined AVG Yield Lint % Micronaire Length Strength Uniformity Color Grade Leaf Grade

DP 1538 B2XF

988 42.1 4.9 1.08 27.3 81.3 41-3 3

ST 4946 GLB2

948 39.5 4.9 1.11 29.2 82.2 52-2 5

DP 1522 B2XF

948 40.8 5.0 1.11 28.6 82.0 51-2 5

PHY 495 W3RF

925 40.0 4.7 1.07 29.5 81.5 52-2 5

PHY 333 WRF

906 41.1 4.7 1.13 28.4 82.2 52-2 5

PHY 444 WRF

900 41.0 4.3 1.18 29.9 82.6 41-2 4

DG 3385 B2XF

897 40.9 4.9 1.09 27.1 82.3 52-2 3

NG 3405 B2XF

880 41.5 4.6 1.07 26.6 80.6 52-2 4

ST 4747 GLB2

851 39.0 4.6 1.14 27.2 81.2 51-2 5

NG 3406 B2XF

847 39.9 4.7 1.08 26.9 81.4 51-3 4

NC On-Farm Trials (Fiber Quality)

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Variety Average Micronaire % High MIC

DP 1522 4.97 59 DG 3385 4.89 47 ST 4946 4.87 53 DP 1538 4.85 35 NG 3406 4.75 35 PHY 495 4.70 35 PHY 333 4.68 24 ST 4747 4.64 29 NG 3405 4.63 29 PHY 444 4.34 12

NC On-Farm Trials (Fiber Quality)

Variety Average Length % Short Staple

PHY 444 1.18 ST 4747 1.14 PHY 333 1.13 6 ST 4946 1.11 6 DP 1522 1.11 12 DG 3385 1.09 18 NG 3406 1.08 35 DP 1538 1.08 47 PHY 495 1.07 41 NG 3405 1.07 41

Variety

% High MIC & Short Staple

DP 1538 29 PHY 495 24 NG 3405 24 DG 3385 18 NG 3406 18 DP 1522 12 PHY 333 6 ST 4946 6 ST 4747 PHY 444

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NC Cotton Variety Performance Calculator

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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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Thank You