Objective:
To evaluate the performance of selected winter wheat varieties in a production environment in northwestern Montana
Personnel:
Clint Beiermann, Suchismita Mondal, Jacob Tracy, Jessica Pavelka
Summary:
The off-station winter wheat trial was planted on September 30th, 2021, harvested on August 9th, 2022, and managed under rainfed conditions (Table 1).
There was no significant difference between the yield of the winter wheat varieties. Yields ranged from 50.7 bu/A for Northern to 85.6 bu/A for AAC Wildfire, with an overall average of 68.9 bu/A. The average test weight was 63.5 lb/bu. Ray had the lowest test weight at 62.1 lb/bu while Judee had the highest at 65.3 lb/bu. The average protein content was 13.6% with the lowest being 12.1% for AAC Wildfire and the highest at 15.0% for Warhorse. There was no significant difference between survival rates of the varieties, they ranged from a 90-98%. The average time for falling numbers was 406.0 seconds, with the lowest falling number variety being MT Warcat at 366.5 seconds, and Northern being the highest at 572.8 seconds, which also had the highest yield (Table 2).
Table 1. Management information |
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|---|---|---|---|
| Seeding date: | 9/30/2021 | Field Location: | Ronan, MT |
| Julian date: | 273 | Harvest date: | 8/9/2022 |
| Tillage: | Conventional | Julian date: | 221 |
| Previous crop: | Spring wheat | Soil type: | Round Butte Silty Clay Loam |
| Herbicide: | MCPA+ pinoxadin+ thifensulfuron+ tribenuron |
Nutrient fertilizer applied (N, P2O5, K20 lb/A): |
120-52-30 |
Table 2. Agronomic performance of winter wheat varieties |
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|---|---|---|---|---|---|---|
| Variety/Line | Stand (%) | HT (in) | YLD (bu/A) | TWT (lb/bu) | PRO (%) | FN (sec) |
| AAC Wildfire | 93 | 31.4 | 85.6 | 64.5 | 12.1 | 423.8 |
| MTS1908 | 97 | 33.9 | 83.6 | 64.4 | 12.9 | 416.0 |
| MT1745 | 97 | 31.3 | 81.5 | 63.7 | 13.3 | 445.9 |
| Bobcat | 96 | 26.4 | 80.5 | 64.7 | 13.1 | 432.9 |
| MTFH19132 | 96 | 30.7 | 80.1 | 63.5 | 13.1 | 462.1 |
| FourOsix | 95 | 30.7 | 79.8 | 63.9 | 13.4 | 427.9 |
| SY Clearstone 2CL | 96 | 35.0 | 79.4 | 63.3 | 13.1 | 458.7 |
| MT19175 | 94 | 29.0 | 79.0 | 64.5 | 12.9 | 437.9 |
| MT WarCat | 90 | 24.5 | 74.5 | 62.6 | 14.3 | 366.5 |
| Yellowstone | 96 | 32.9 | 74.2 | 63.2 | 14.2 | 545.9 |
| Keldin | 92 | 28.3 | 73.7 | 62.8 | 13.8 | 463.5 |
| Judee | 94 | 29.6 | 73.4 | 65.3 | 14.0 | 451.0 |
| StandClear CLP | 98 | 31.4 | 70.3 | 64.0 | 13.7 | 423.5 |
| MTS1903 | 94 | 32.1 | 67.3 | 64.4 | 13.2 | 478.7 |
| LCS Jet | 96 | 25.1 | 65.0 | 62.4 | 12.3 | 372.7 |
| Loma | 95 | 27.0 | 64.3 | 63.5 | 14.8 | 403.9 |
| Ray | 92 | 32.4 | 61.3 | 62.1 | 14.7 | 516.1 |
| Brawl CL Plus | 96 | 28.7 | 60.5 | 64.3 | 13.9 | 471.2 |
| MTCL19151 | 96 | 26.3 | 58.2 | 63.2 | 13.9 | 533.0 |
| MTCS20156 | 94 | 28.6 | 57.5 | 63.1 | 14.5 | 434.5 |
| MTF20189 | 95 | 39.9 | 57.1 | 62.7 | 15.0 | 527.4 |
| Warhorse | 96 | 28.8 | 55.2 | 63.3 | 15.0 | 531.3 |
| SY Monument | 95 | 26.9 | 55.2 | 62.9 | 13.3 | 393.2 |
| Flathead | 94 | 31.4 | 54.1 | 63.2 | 14.7 | 509.6 |
| Northern | 91 | 26.6 | 50.7 | 62.8 | 12.1 | 572.8 |
| Average | 94.7 | 30 | 68.9 | 63.5 | 13.6 | 460.0 |
| LSD (0.05) | - | 5.7 | - | 1.4 | - | 66.0 |
| C.V. (%) | 2.6 | 9.6 | 23.2 | 1.1 | 12.8 | 8.7 |
| P>F | 0.1212 | <0.0001 | 0.1647 | 0.0001 | 0.7422 | <0.0001 |
| Bold = highest value in column, Bolding indicates varieties with values equal to highest variety based on LSD (p =0.05) | ||||||
| HT = height, YLD = yield, TWT = test weight, PRO = protein, FN = falling number | ||||||