Chickasha Standard vs. Intensive Management Comparison Variety Trial
Cooperator: South Central Research Station
Planting & harvest dates: 10/30/2025 & 06/02/2026
Management: Grain -only, conventional tillage
Seeding rate: 60 lb/ac for the standard and 1.2 million seeds/acre for the intensive
Nitrogen: 6 lbs/ac 10-34-0 at planting, 60 lbs/ac on 03/10/2026 as urea and 80 lbs/ac on 02/11/2026 as urea
Fungicide: none for the standard and 4 fl oz of Tebucure 3.6 at jointing on 03/10/2026 and 13 fl oz of Nexicor at flag leaf on 04/06/2026 for the intensive
Extension Educator: Kelly Burrows
Previous crop: Austrian winter peas
Soil Type: Dale silt loam
Soil test: pH= 7.5, N= 38, P= 37, K= 397
| Licensee | Variety | Standard bu/ac | Grain Yield Intensive bu/ac | Diff bu/ac | Standard lb/bu |
|---|---|---|---|---|---|
| KWA | KS Bill Snyder | 74a | 74a | 0 | 64.0a |
| LCS | LCS Radar | 72a | 68a | -4 | 61.7a |
| AGSECO | AG Golden | 69a | 70a | 1 | 59.2 |
| OGI | Wyatt | 67a | 75a | 8 | 60.2 |
| Croplan | CP7599CLP | 67a | 69a | 2 | 62.9a |
| KWA | KS Tradition | 67a | 71a | 4 | 62.2a |
| OGI | Paradox | 66a | 64 | -2 | 61.5a |
| PlainsGold | Canvas | 65 | 72a | 7 | 60.6 |
| LCS | LCS Highnoon | 64 | 74a | 10 | 60.4 |
| Croplan | CP7869 | 64 | 77a | 13 | 61.2 |
| LCS | LCS Mojo | 63 | 73a | 10 | 60.9 |
| OGI | Showdown | 63 | 65 | 2 | 59.5 |
| Westbred | WB4422 | 63 | 73a | 10 | 61.2 |
| Westbred | WB4347 | 63 | -- | -- | 63.3a |
| KWA | KS Providence | 62 | 61 | -1 | 60.6 |
| AGSECO | AG Radical | 61 | 75a | 14 | 61.1 |
| PlainsGold | Outlaw | 61 | 75a | 14 | 59.5 |
| AgriPro | AP Prolific | 60 | 73a | 13 | 61.2 |
| Westbred | WB4445CLP | 59 | 65 | 6 | 61.3 |
| LCS | LCS Cowie AX | 58 | 77a | 19 | 62.3a |
| LCS | LCS Warbird AX | 57 | 70a | 13 | 61.8a |
| AgriPro | AP Sunbird | 57 | 64 | 7 | 60.9 |
| LCS | LCS Troubadour AX | 56 | 70a | 14 | 60.5 |
| PlainsGold | Kivari AX | 56 | 70a | 14 | 59.7 |
| OGI | Smith's Gold | 55 | 56 | 1 | 61.9a |
| AgriPro | AP Tango | 55 | 73a | 18 | 59.3 |
| Croplan | CP7017AX | 52 | 61 | 9 | 59.5 |
| LCS | LCS Aries | 52 | 58 | 6 | 60.7 |
| OGI | Green Hammer | 51 | 64 | 13 | 61.4a |
| OGI | Orange Blossom CL+ | 51 | 56 | 5 | 62.8a |
| Nutrien | Ramsay | 50 | 74a | 24 | 58.5 |
| AgriPro | AP24 AX | 50 | 53 | 3 | 58.8 |
| LCS | LCS Gaucho CL+ | 50 | -- | -- | 62.5a |
| OGI | Gallagher | 50 | 59 | 9 | 61.5a |
| LCS | LCS Turnpike CL+ | 49 | 59 | 10 | 63.3a |
| OGI | Doublestop CL+ | 48 | 49 | 1 | 62.8a |
| Westbred | WB4459AX | 46 | 60 | 14 | 61.3 |
| AgriPro | AP Stocky | 44 | 60 | 16 | 57.1 |
| Nutrien | Milestone | 39 | 63 | 24 | 55.3 |
| Nutrien | Cavalry | 37 | 54 | 17 | 55.8 |
| OGI | High Cotton | -- | 63 | -- | -- |
| Westbred | WB4792 | -- | -- | -- | -- |
| Experimentals | |||||
| KWA | KS20HD134 | 71a | 70a | -1 | 61.2 |
| PlainsGold | CO20022RC | 64 | 70a | 6 | 62.2a |
| OSU | OK23D89031X | 63 | 67a | 4 | 61.7a |
| OSU | OK23D89088X | 60 | 65 | 5 | 62.8a |
| KWA | KS23U7484.H1.B3 | 58 | 56 | -2 | 60.6 |
| OSU | OK21DTR1705-91 | 56 | 54 | -2 | 60.6 |
| PlainsGold | CO19410R | 52 | 57 | 5 | 61.3 |
| OSU | OK21DTR1722-16W | 49 | -- | -- | 58.8 |
| OSU | OK21611 | -- | 54 | -- | -- |
| OSU | OK21DTR1722-62 | -- | 65 | -- | -- |
| Mean | 58 | 65 | 7 | 60.8 | |
| LSD (0.05) | 8 | 10 | -- | 1.9 |
Notes: Grain yield and protein concentration were adjusted to 12% moisture content. a: Shaded values are not statistically different from the highest value within a column. Varieties High Cotton, OK21611, OK21DTR1722-62, and WB4792 were excluded from the standard management trial analysis due to severe freeze injury, which was more severe on the west side of the trial. Varieties LCS Gaucho CL+, OK21DTR1722-16W, WB4347, and WB4792 were excluded from the intensive management trial analysis due to severe freeze injury, which was more severe on the west side of the trial. OK Corral was excluded from the analysis due to deer damage. Double-dashes "--"=data not available.
| Licensee | Variety | Test Weight Intensive lb/bu | Diff lb/bu | Standard % | Protein Intensive % | Diff % |
|---|---|---|---|---|---|---|
| KWA | KS Bill Snyder | 63.3 | -0.7 | 13.0 | 13.3 | 0.3 |
| LCS | LCS Radar | 60.7 | -1.0 | 13.4 | 13.6 | 0.2 |
| AGSECO | AG Golden | 62.1 | 2.9 | 12.1 | 13.6 | 1.5 |
| OGI | Wyatt | 62.3 | 2.1 | 12.2 | 13.9 | 1.7 |
| Croplan | CP7599CLP | 62.2a | 1.3 | 14.2a | 15.0 | 0.8 |
| KWA | KS Tradition | 62.4 | 0.2 | 12.8 | 13.1 | 0.3 |
| OGI | Paradox | 62.3 | 0.8 | 13.1 | 14.8 | 1.7 |
| PlainsGold | Canvas | 63.7a | 3.1 | 12.8 | 13.9 | 1.1 |
| LCS | LCS Highnoon | 62.1 | 1.7 | 13.4 | 13.9 | 0.5 |
| Croplan | CP7869 | 61.9 | 0.7 | 12.3 | 13.7 | 1.4 |
| LCS | LCS Mojo | 62.1 | 1.2 | 12.1 | 13.4 | 1.3 |
| OGI | Showdown | 61.8 | 2.3 | 13.1 | 13.7 | 0.6 |
| Westbred | WB4422 | 63.3 | 2.1 | 13.2 | 14.4 | 1.2 |
| Westbred | WB4347 | -- | -- | 12.0 | -- | -- |
| KWA | KS Providence | 62.2 | 1.6 | 14.3a | 14.3 | 0.0 |
| AGSECO | AG Radical | 62.0 | 0.9 | 13.3 | 14.1 | 0.8 |
| PlainsGold | Outlaw | 61.8 | 2.3 | 11.5 | 13.3 | 1.8 |
| AgriPro | AP Prolific | 63.1 | 1.9 | 12.9 | 14.5 | 1.6 |
| Westbred | WB4445CLP | 62.9 | 1.6 | 14.2a | 14.0 | -0.2 |
| LCS | LCS Cowie AX | 63.6a | 1.3 | 12.9 | 13.3 | 0.4 |
| LCS | LCS Warbird AX | 63.4a | 1.6 | 13.0 | 13.8 | 0.8 |
| AgriPro | AP Sunbird | 63.0 | 2.1 | 12.5 | 14.0 | 1.5 |
| LCS | LCS Troubadour AX | 62.3 | 1.8 | 12.6 | 12.9 | 0.3 |
| PlainsGold | Kivari AX | 61.5 | 1.8 | 11.5 | 12.9 | 1.4 |
| OGI | Smith's Gold | 63.6a | 1.7 | 13.4 | 14.4 | 1.0 |
| AgriPro | AP Tango | 62.0 | 2.7 | 12.6 | 13.9 | 1.3 |
| Croplan | CP7017AX | 62.3 | 2.8 | 11.7 | 13.9 | 2.2 |
| LCS | LCS Aries | 62.6 | 1.9 | 12.4 | 13.9 | 1.5 |
| OGI | Green Hammer | 63.4a | 2.0 | 14.4a | 15.2 | 0.8 |
| OGI | Orange Blossom CL+ | 63.6a | 0.8 | 14.7a | 15.7a | 1.0 |
| Nutrien | Ramsay | 60.8 | 2.3 | 13.1 | 13.8 | 0.7 |
| AgriPro | AP24 AX | 62.1 | 3.3 | 12.0 | 14.7 | 2.7 |
| LCS | LCS Gaucho CL+ | -- | -- | 13.4 | -- | -- |
| OGI | Gallagher | 62.9 | 1.4 | 13.5 | 15.0 | 1.5 |
| LCS | LCS Turnpike CL+ | 64.2a | 0.9 | 13.3 | 14.4 | 1.1 |
| OGI | Doublestop CL+ | 63.8a | 1.0 | 14.0 | 15.2 | 1.2 |
| Westbred | WB4459AX | 64.0a | 2.7 | 12.2 | 12.9 | 0.7 |
| AgriPro | AP Stocky | 60.2 | 3.1 | 13.1 | 13.7 | 0.6 |
| Nutrien | Milestone | 58.5 | 3.2 | 13.2 | 14.1 | 0.9 |
| Nutrien | Cavalry | 58.5 | 2.7 | 15.9a | 15.4a | -0.5 |
| OGI | High Cotton | 63.3 | -- | -- | 14.1 | -- |
| Westbred | WB4792 | -- | -- | -- | -- | -- |
| Experimentals | ||||||
| KWA | KS20HD134 | 62.8 | 1.6 | 12.3 | 13.4 | 1.1 |
| PlainsGold | CO20022RC | 63.8a | 1.6 | 11.6 | 13.2 | 1.6 |
| OSU | OK23D89031X | 62.1 | 0.4 | 13.5 | 13.5 | 0.0 |
| OSU | OK23D89088X | 63.6a | 0.8 | 12.3 | 14.2 | 1.9 |
| KWA | KS23U7484.H1.B3 | 61.8 | 1.2 | 13.8 | 14.6 | 0.8 |
| OSU | OK21DTR1705-91 | 62.0 | 1.4 | 12.5 | 15.7a | 3.2 |
| PlainsGold | CO19410R | 62.6 | 1.3 | 11.5 | 14.1 | 2.6 |
| OSU | OK21DTR1722-16W | -- | -- | 16.2a | -- | -- |
| OSU | OK21611 | 63.0 | -- | -- | 14,7 | -- |
| OSU | OK21DTR1722-62 | 62.5 | -- | -- | 16.1a | -- |
| Mean | 62.4 | 1.6 | 13.0 | 14.1 | 1.1 | |
| LSD (0.05) | 0.8 | -- | 2.0 | 0.7 | -- |