Field trial LS meansz from 2019 and 2020 representing profit mean ($/ha), and lower and upper profit determined by ANOVA (P ≤ 0_10) for fertilizer and nematicide combinations on DP 1646 B2XFy at the Plant Breeding Unit_
| No | Treatments | Mean profit | Lower profit | Upper profit | Additional fertilizer and nematicide input costx | |
|---|---|---|---|---|---|---|
| 1 | (NH4)2SO4 – PHSw | $553.01 | bz | $461.43 | $644.59 | $56.06 |
| 2 | 28-0-0-5 – PHS | $544.05 | b | $452.47 | $635.63 | $30.20 |
| 3 | STv + (NH4)2SO4–PHS | $569.21 | ab | $477.63 | $660.79 | $100.13 |
| 4 | ST + 28-0-0-5 – PHS | $635.85 | ab | $544.27 | $727.43 | $77.27 |
| 5 | ST + (NH4)2SO4–PHS + FBu | $608.01 | ab | $516.43 | $699.59 | $153.19 |
| 6 | ST + 28-0-0-5 – PHS + FB | $695.76 | ab | $604.18 | $787.34 | $107.47 |
| 7 | ST + (NH4)2SO4 + Vydate® C-LV – PHS | $627.25 | ab | $535.67 | $718.83 | $138.73 |
| 8 | ST + 28-0-0-5 + Vydate® C-LV – PHS | $683.50 | ab | $591.92 | $775.08 | $115.87 |
| 9 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS | $616.22 | ab | $524.64 | $707.80 | $150.00 |
| 10 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS | $640.59 | ab | $549.01 | $732.17 | $127.14 |
| 11 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | $575.53 | ab | $483.95 | $667.11 | $252.93 |
| 12 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | $784.00 | a | $692.42 | $875.58 | $207.21 |
Field trial LS meansz from 2019 and 2020 of the effect of nematicide and fertilizer combinations on DP 1646 B2XFy stand, cotton root fresh weight at pinhead square (PHS) and first bloom (FB), Rotylenchulus reniformis eggs per gram of root at PHS and FB sample data summed, and yield at the Tennessee Valley Research and Extension Center_
| No | Treatmentsy | Standx | Root fresh weigh (g) PHSw + FBv | R. reniformis eggs/g root PHS + FB | Lint (kg/ha) | |
|---|---|---|---|---|---|---|
| 1 | (NH4)2SO4 – PHS | 59 | 14.78 | 5723 | 1257 | bz |
| 2 | 28-0-0-5 – PHS | 56 | 14.26 | 6821 | 1200 | b |
| 3 | STu + (NH4)2SO4–PHS | 57 | 16.11 | 4735 | 1345 | ab |
| 4 | ST + 28-0-0-5 – PHS | 56 | 15.99 | 4354 | 1368 | ab |
| 5 | ST + (NH4)2SO4–PHS + FB | 56 | 15.63 | 3126 | 1566 | ab |
| 6 | ST + 28-0-0-5 – PHS + FB | 55 | 13.51 | 5140 | 1223 | b |
| 7 | ST + (NH4)2SO4 + Vydate® C-LV – PHS | 57 | 17.02 | 2558 | 1803 | a |
| 8 | ST + 28-0-0-5 + Vydate® C-LV – PHS | 57 | 16.51 | 5393 | 1411 | ab |
| 9 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS | 58 | 16.91 | 5519 | 1542 | ab |
| 10 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS | 55 | 14.89 | 4156 | 1412 | ab |
| 11 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 58 | 16.02 | 2228 | 1432 | ab |
| 12 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 59 | 14.97 | 5670 | 1455 | ab |
Additional fertilizer and nematicide rates and application method used in Plant Science Research Center, Auburn, AL microplots and Tennessee Valley Research and Extension Center, Belle Mina, AL, and Plant Breeding Unit, Shorter, AL field trials in 2019 and 2020_
| Chemicalsz | Microplot rate | Field rate | Application |
|---|---|---|---|
| (NH4)2SO4(21-0-0-24) | 0.52 g/m | 108 kg/ha | Broadcast |
| 28-0-0-5 | 0.289 ml/m | 89 L/ha | Knifed |
| Vydate® C-LV (Oxamyl) | 0.004 ml/m | 0.8 L/ha | Foliar spray |
| Max-In® Sulfur (0-0-19-13) | 0.007 ml/m | 1.5 L/ha | Foliar spray |
| Aeris® (Imidacloprid & Thiodicarb) | 0.375 mg ai/seed | 0.375 mg ai/seed | Seed treatment |
| COPeO™ Prime (Fluopyram | 0.30 mg ai/seed | 0.30 mg ai/seed | Seed treatment |
| 2019 | |||
| Treatment | Fertilizer | Nematicides | Application |
| 1 | (NH4)2SO4 | Untreated | PHS |
| 2 | 28-0-0-5 | Untreated | PHS |
| 3 | (NH4)2SO4 | Aeris® | PHS |
| 4 | 28-0-0-5 | Aeris® | PHS |
| 5 | (NH4)2SO4 | Aeris® | PHS + FB |
| 6 | 28-0-0-5 | Aeris® | PHS + FB |
| 7 | (NH4)2SO4 | Aeris® + Vydate® C-LV | PHS |
| 8 | 28-0-0-5 | Aeris® + Vydate® C-LV | PHS |
| 9 | (NH4)2SO4 + Max-In® Sulfur | Aeris® + Vydate® C-LV | PHS |
| 10 | 28-0-0-5 + Max-In® Sulfur | Aeris® + Vydate® C-LV | PHS |
| 11 | (NH4)2SO4 + Max-In® Sulfur | Aeris® + Vydate® C-LV | PHS + FB |
| 12 | 28-0-0-5 + Max-In® Sulfur | Aeris® + Vydate® C-LV | PHS + FB |
| 2020 | |||
| Treatment | Fertilizer | Nematicides | Application |
| 1 | (NH4)2SO4 | Untreated | PHS |
| 2 | 28-0-0-5 | Untreated | PHS |
| 3 | (NH4)2SO4 | COPeO™ | PHS |
| 4 | 28-0-0-5 | COPeO™ | PHS |
| 5 | (NH4)2SO4 | COPeO™ | PHS + FB |
| 6 | 28-0-0-5 | COPeO™ | PHS + FB |
| 7 | (NH4)2SO4 | COPeO™ + Vydate® C-LV | PHS |
| 8 | 28-0-0-5 | COPeO™ + Vydate® C-LV | PHS |
| 9 | (NH4)2SO4 + Max-In® Sulfur | COPeO™ + Vydate® C-LV | PHS |
| 10 | 28-0-0-5 + Max-In® Sulfur | COPeO™ + Vydate® C-LV | PHS |
| 11 | (NH4)2SO4 + Max-In® Sulfur | COPeO™ + Vydate® C-LV | PHS + FB |
| 12 | 28-0-0-5 + Max-In® Sulfur | COPeO™ + Vydate® C-LV | PHS + FB |
Microplot LS meansz from 2019 and 2020 of the effect of additional nematicide and fertilizer combinations on DP 1646 B2XFy plant height, cotton root fresh weight at pinhead square (PHS) and first bloom (FB) Meloidogyne incognita eggs per gram of root at PHS and FB sample data summed, and seed cotton yield at the Plant Science Research Center_
| No | Treatments | Plant height (cm) | Root fresh weight (g) PHSx + FBw | M. incognita eggs/g root PHS + FB | Seed cotton yield (g) |
|---|---|---|---|---|---|
| 1 | (NH4)2SO4 – PHS | 51 | 10.81 | 554 ab | 34 |
| 2 | 28-0-0-5 – PHS | 52 | 9.70 | 130 b | 34 |
| 3 | STv + (NH4)2SO4 – PHS | 55 | 8.36 | 405 ab | 33 |
| 4 | ST + 28-0-0-5 – PHS | 61 | 10.35 | 224 ab | 32 |
| 5 | ST + (NH4)2SO4 – PHS + FB | 42 | 9.41 | 677 a | 33 |
| 6 | ST + 28-0-0-5 – PHS + FB | 45 | 9.18 | 309 ab | 47 |
| 7 | ST + (NH4)2SO4 + Vydate® C-LV – PHS | 52 | 9.83 | 241 ab | 24 |
| 8 | ST + 28-0-0-5 + Vydate® C-LV – PHS | 55 | 9.71 | 146 b | 34 |
| 9 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS | 57 | 10.29 | 191 ab | 22 |
| 10 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS | 52 | 8.47 | 408 ab | 29 |
| 11 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 54 | 11.12 | 133 b | 23 |
| 12 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 59 | 12.29 | 464 ab | 49 |
Field trial LS meansz from 2019 and 2020 representing profit mean ($/ha), and lower and upper profit determined by ANOVA (P ≤ 0_10) for fertilizer and nematicide combinations on DP 1646 B2XFy at the Tennessee Valley Research and Extension Center_
| No | Treatments | Mean profit | Lower profit | Upper profit | Additional fertilizer and nematicide input costx | |
|---|---|---|---|---|---|---|
| 1 | (NH4)2SO4 – PHSw | $862.69 | bz | $677.97 | $1047.41 | $56.06 |
| 2 | 28-0-0-5 – PHS | $844.55 | b | $659.83 | $1029.27 | $30.20 |
| 3 | STv + (NH4)2SO4 – PHS | $880.33 | ab | $695.61 | $1065.05 | $100.13 |
| 4 | ST + 28-0-0-5 – PHS | $920.39 | ab | $735.67 | $1105.11 | $77.27 |
| 5 | ST + (NH4)2SO4 – PHS + FBu | $988.46 | ab | $803.74 | $1173.18 | $153.19 |
| 6 | ST + 28-0-0-5 – PHS + FB | $784.57 | b | $599.84 | $962.29 | $107.47 |
| 7 | ST + (NH4)2SO4 + Vydate® C-LV-PHS | $1175.87 | a | $991.15 | $1360.59 | $138.73 |
| 8 | ST + 28-0-0-5 + Vydate® C-LV-PHS | $913.44 | ab | $728.72 | $1098.16 | $115.87 |
| 9 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS | $974.36 | ab | $789.64 | $1159.08 | $150.00 |
| 10 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS | $902.49 | ab | $717.77 | $1087.21 | $127.14 |
| 11 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | $882.36 | ab | $697.64 | $1067.08 | $252.93 |
| 12 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | $922.73 | ab | $738.01 | $1107.45 | $207.21 |
Microplot LS meansz from 2019 and 2020 of the effect of additional nematicide and fertilizer combinations on DP 1646 B2XFy plant height, cotton root fresh weight at pinhead square (PHS) and first bloom (FB), Rotylenchulus reniformis eggs per gram of root at PHS and FB sample data summed, and seed cotton yield at the Plant Science Research Center_
| No | Treatments | Plant height (cm) | Root fresh weight (g) PHSx + FBw | R. reniformis eggs/g root-PHS + FB | Seed cotton yield (g) | ||
|---|---|---|---|---|---|---|---|
| 1 | (NH4)2SO4–PHS | 68 | 12.49 | 308 | a | 36 | ab |
| 2 | 28-0-0-5 – PHS | 67 | 12.04 | 183 | ab | 33 | ab |
| 3 | STv + (NH4)2SO4–PHS | 71 | 15.73 | 208 | ab | 28 | b |
| 4 | ST + 28-0-0-5 – PHS | 66 | 15.12 | 271 | ab | 36 | ab |
| 5 | ST + (NH4)2SO4–PHS + FB | 68 | 20.49 | 121 | ab | 45 | ab |
| 6 | ST + 28-0-0-5 – PHS + FB | 67 | 19.35 | 252 | ab | 41 | ab |
| 7 | ST + (NH4)2SO4 + Vydate® C-LV – PHS | 71 | 12.89 | 152 | ab | 41 | ab |
| 8 | ST + 28-0-0-5 + Vydate® C-LV – PHS | 73 | 16.02 | 110 | ab | 47 | ab |
| 9 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS | 71 | 15.44 | 272 | ab | 47 | ab |
| 10 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS | 73 | 14.77 | 70 | b | 44 | ab |
| 11 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 68 | 12.93 | 220 | ab | 55 | a |
| 12 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 73 | 16.13 | 147 | ab | 47 | ab |
Field trial LS meansz from 2019 and 2020 of the effect of nematicide and fertilizer combinations on DP 1646 B2XFy cotton root fresh weight at pinhead square (PHS) and first bloom (FB), Meloidogyne incognita eggs per gram of root at PHS and FB sample data summed, and yield at the Plant Breeding Unit_
| No | Treatments | Standx | Root fresh weight (g) PHSw + FBv | M. incognita eggs/g root PHS + FB | Lint (kg/ha) | |
|---|---|---|---|---|---|---|
| 1 | (NH4)2SO4 – PHS | 44 | 22.36 | 696 | 832 | bz |
| 2 | 28-0-0-5 – PHS | 41 | 22.22 | 1661 | 788 | b |
| 3 | STu + (NH4)2SO4 – PHS | 46 | 24.34 | 776 | 918 | ab |
| 4 | ST + 28-0-0-5 – PHS | 52 | 24.20 | 824 | 978 | ab |
| 5 | ST + (NH4)2SO4 – PHS + FB | 51 | 22.34 | 590 | 1044 | ab |
| 6 | ST + 28-0-0-5 – PHS + FB | 53 | 21.68 | 1206 | 1101 | ab |
| 7 | ST + (NH4)2SO4 + Vydate® C-LV – PHS | 52 | 21.83 | 872 | 1050 | ab |
| 8 | ST + 28-0-0-5 + Vydate® C-LV – PHS | 54 | 22.10 | 1104 | 1096 | ab |
| 9 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS | 55 | 22.37 | 710 | 1051 | ab |
| 10 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS | 56 | 20.47 | 565 | 1052 | ab |
| 11 | ST + (NH4)2SO4 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 48 | 23.13 | 1093 | 1010 | ab |
| 12 | ST + 28-0-0-5 + Vydate® C-LV + Max-In® Sulfur – PHS + FB | 57 | 23.05 | 1215 | 1265 | a |