Objective:

To evaluate hard red spring wheat varieties for agronomic performance in environments representative of northwestern Montana. 

Results:

Significant differences were observed for all response variables. Heading date averaged 173 Julian days (June 21) and spanned a 9 day period that ranged from 170 to 179 Julian days. On average, physiological maturity occurred on 216 Julian days (August 3) and ranged from 215 to 217 days. Stripe rust was observed on all cultivars despite an application of Tilt. Stripe rust averaged 13.6% and ranged from 1.0% infection for Yurok to 39.3% for MT 1574. Plant height averaged 33 inches. The tallest cultivar was WA 8258 at 37.3 inches while Patwin 515 was the shortest at 26.3 inches. Lodging was minimal, with the greatest lodging being 5.0 % for UI Winchester. Yields averaged 105.7 bu/A, ranging from 76.7 bu/A for UI Winchester to 125.2 bu/A for 06PN3015-08 and IDO1602S. Protein content averaged 14.70% and ranged from 13.29% for Yurok to 16.79% for Egan. Test weight averaged 60.9 lb/bu and ranged from 58.8 lb/bu for Patwin 515 to 62.8 lb/bu for IDO1602S. Falling numbers averaged 345.1 seconds and ranged from a low of 213.3 for Patwin 515 to a high of 532.5 for 04PN3051-9. Preharvest sprout, as measured in the change (delta) in the leaf area of sprouted spikes, averaged 95.4 and ranged from a low of 12.5 for Volt to a high of 223.4 for 06PN3015-08.

Summary:

Two varieties (WA 8258 and Yurok) were statistically equivalent to 06PN3015-08 and IDO1602S, the highest yielding varieties. Stripe rust infection was generally associated with the lowest yielding varieties.    

Table 1. Materials and Methods.

Seeding Date: 4/22/2016 Harvest Date: 8/26/2016
Julian Date: 113 Julian Date: 239
Seeding Rate: 80 lb/A Soil Type: Creston SiL
Previous Crop: Winter Wheat Soil Test: 96-8-200
Tillage: Conventional Fertilizer: 235-40-60
Fungicide: Tilt 4 oz Insecticide: Warrior II 1.92 floz/A
Herbicide: Huskie 11 oz/A + Axial 16.4 oz/A + NIS 1 qt/100 gal + UAN 28% 1 qt/A
Stinger 1/3 pt/A

Table 2. Agronomic data from the evaluation of Western Regional Hard Red Spring Wheats, Kalispell, MT - 2016.

Cultivar HD Julian SR % HT in. PM Julian LOD % YLD bu/A1 PRO %2 TWT lb/bu1 PHS delta
06PM3015-08 173 4.7 32.4 216.0 0.0 125.2 14.32 61.3 223.4
IDO1602S3 170 7.7 33.1 216.7 0.0 125.2 14.30 62.8 172.0
WA 8258 170 7.3 37.3 216.0 3.3 119.4 14.37 61.2 38.6
Volt 179 3.3 33.4 216.7 0.0 115.7 14.02 62.0 12.5
Yurok 179 1.0 35.7 216.7 0.0 114.8 13.29 60.0 26.4
Jefferson 172 26.0 34.9 216.3 0.0 108.6 13.70 61.3 76.4
WB9518 174 1.7 30.4 216.0 0.0 108.5 16.20 59.5 47.7
Patwin 5153 174 1.3 26.3 216.3 0.0 106.5 15.50 58.8 139.3
04PN3051-9 174 15.0 34.9 214.7 0.0 106.0 16.30 62.3 51.5
Glee 171 15.3 36.7 216.0 1.7 105.0 14.18 61.8 103.4
UI Platinum3 170 26.0 32.7 215.7 0.0 101.4 13.83 61.5 140.7
Solano 176 4.0 28.0 216.7 0.0 101.0 15.74 60.0 55.5
Egan 174 5.3 36.1 215.0 0.0 97.9 16.79 58.9 74.4
MT 1572 172 24.0 30.7 215.7 0.0 92.7 14.33 61.5 71.1
MT 1574 175 39.3 33.0 216.0 0.0 87.1 14.63 60.8 210.7
UI Winchester 171 35.0 32.7 215.3 5.0 75.7 13.90 60.8 82.2
Mean 173 13.6 33.0 216.0 0.6 105.7 14.70 60.9 95.4
CV 0.77 30.8 3.7 0.2 168.7 8.2 2.49 0.8 39.7
LSD 2.2 7.0 2.0 0.8 1.8 14.4 0.61 0.9 63.1
Pr>F 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001

HD: heading date; SR: stripe rust; HT: height; LOD: lodging; YLD: yield; PRO: protein; TWT: test weight

1 adjusted to 13% moisture; 2 adjusted 12% moisture; 3 hard white spring wheat