Western Regional Hard Spring Wheat Evaluations - 2017
Bob Stoudaard, NWARC, Kalispell
To evaluate experimental and commercially available hard spring wheat cultivars for agronomic performance in environments representative of northwestern Montana.
This nursery was established to evaluate hard red and hard white spring wheat varieties that are normally be targeted for use in the Pacific Northwest. This year’s heat and drought resulted in a shorter crop, with plant height averaging 21 inches. WA 8259 was the tallest variety at 24 inches, and Patwin 515 was the shortest, at 17.1 inches. Heading spanned 7 days, with UI Platinum and IDO1604S being the earliest varieties at 170 days, and Patwin 515 the latest at 176.7 days. There were no statistical differences among varieties for yield. Numerically, WA 8282 was the highest yielding variety, producing 45.5 2 bu/A, whereas IDO1604S was the lowest yielding variety, at 28.1 bu/A. Egan had the highest protein at 16.11 %, and UI Platinum the lowest at 12.94 percent. Test weights were low, averaging 58.5 lb/bu. WA 8281 had the highest test weight at 60.8 lb/bu and Patwin 515HP the lowest at 54.9 lb/bu. Falling numbers were high and all entries avoided dockage this year Egan had the highest falling number at 524, while Patwin 515 had the lowest at 381 seconds.
Statistical differences were detected for all response variables, except yield. The heat and drought resulted in shorter plants, low yields and test weights, and high proteins and falling numbers.
Table 1. Materials and Methods.
|Seeding Date:||5/3/2017||Harvest Date:||8/11/2017|
|Julian Date:||123||Julian Date:||223|
|Seeding Rate:||85 lb/A||Soil Type:||Creston SiL|
|Previous Crop:||Peas||Soil Test:||29-16-156|
Table 2. Agronomic data from the Western Regional Hard Spring Wheat Nursery, Kalispell, MT - 2017.
|Cultivar||HD Julian||HT in.||YLD bu/A||PRO %||TWT lb/bu||FN sec|
|LSD P = 0.05||2.01||2.31||12.63||0.51||0.74||75.75|
HD: heading date; HT: height; YLD: yield; PRO: protein; TWT: test weight; FN: falling number