Objective:       

To evaluate spring wheat varieties and experimental lines for agronomic performance in environments and cropping systems representative of northwestern Montana.    

Results:           

Significant differences were observed in heading date, percent stripe rust infection, height, lodging and yield. Protein and test weight values were reported from a representative sample of each variety. Heading date averaged 170 days (June 19) and spanned a six day period ranging from 168 to 174 days. Stripe rust pressure was generally low this year. Average percent infection was 16.9% and ranged from 4.6% for WB 9668 to 47.5% for LNR-0757. The mean height was 35.2 inches and ranged from 29.0 for WB 9668 to 45.4 inches for Thatcher. Lodging averaged 5.7% with a range from 0.0% to 56.7 percent. Grain yield averaged 111.2 bu/A and ranged from 89.2 bu/A for MT 1429 to 131.5 bu/a for MT 1451. Protein averaged 15.5 % and ranged from 13.4% for WPSP2-VIDA1 to 17.0% for Egan. Test weight averaged 61.9 lb/bu and ranged from 59.5 for WB 9507 to 63.6 for MT 1415 and LCS Breakaway.

Summary:       

Despite the season’s drought, the spring wheat nursery afforded yields greater than those from 2014. Vida and Duclair were the highest yielding commercially available varieties at 123.5 and 122.0 bu/A, respectively. Egan, a variety with resistance to the orange wheat blossom midge, yielded 115.9 bu/A and provided the highest percent protein at 17.0 percent.

 

Table 1. Materials and Methods
Seeding Date: 4/22/2015 Harvest Date: 8/19/2015
Julian Date: 112 Julian Date: 231
Seeding Rate: 80 lb/A Soil Type: Creston SiL
Previous Crop: Winter Wheat Soil Test: 63-16-242
Tillage: Conventional Fertilizer: 250-40-90
Irrigation: None Herbicide: Huskie Complete 13.7oz/A
Instecticide: Warrior II 1.92 floz/A Fungicide: Quadris 6 floz/A

 

Table 2. Agronomic data       
  HD SR HT LOD YLD¹ PRO² TWT¹
Cultivar Julian % in % bu/A % lb/bu
MT 1451 171 9.2 36.6 3.3 131.5 16.0 62.1
LIMAGR143 170 14.6 40.0 15.0 125.3 15.7 62.5
MT 1453 169 15.2 34.4 6.7 124.6 14.7 62.2
MT 1414 173 12.1 35.5 0.0 123.9 15.0 60.8
VIDA 172 21.3 36.6 19.0 123.5 15.6 61.6
DUCLAIR 169 9.2 34.8 0.7 122.0 15.8 60.7
WPSP2-VIDA2 173 10.0 35.3 0.0 121.6 14.2 62.7
WB 9668 168 4.6 29.0 0.0 121.6 16.9 62.0
MT 1422 172 13.2 42.2 56.7 120.7 15.0 62.7
MT 1406 168 10.9 37.4 0.0 120.6 16.1 61.6
MT 1331 169 30.8 33.5 0.0 120.2 14.7 60.2
SY ROWYN 169 12.9 33.8 14.0 120.2 14.1 62.4
SY INGMAR 171 12.4 33.2 0.0 119.2 15.8 63.2
SY VALDA 171 19.5 32.8 0.0 118.8 14.2 63.2
MT 1418 173 9.9 35.5 0.0 118.3 15.3 60.9
MT 1338 169 36.0 36.3 0.0 117.8 16.1 62.9
MT 1412 173 12.3 35.4 0.0 117.5 15.4 62.2
MT 1348 169 27.6 35.3 20.0 117.4 16.0 61.8
LCS BREAKAWAY 169 11.7 34.8 0.0 117.1 16.5 63.6
WPSP2-VIDA1 173 16.0 36.4 0.0 116.1 13.4 62.9
EGAN 173 5.8 35.0 0.0 115.9 17.0 61.4
MT 1401 168 8.5 36.2 35.0 114.9 16.8 62.0
CORBIN 169 19.1 35.5 5.0 114.8 14.8 62.6
REEDER 171 15.4 37.1 0.0 114.2 14.8 62.8
MT 1426 168 13.8 36.8 1.7 114.1 16.1 60.6
LNR-0311 171 24.1 37.2 11.7 114.0 13.9 63.3
WPSP2-CHOTEAU1 169 16.9 35.8 3.3 113.9 15.8 62.1
MT 1219 169 20.5 33.5 30.0 113.5 15.1 61.7
WB9879CLP 169 14.4 34.8 0.0 113.2 15.8 61.7
WB 9377 172 9.4 30.4 0.0 112.9 14.9 62.5
MT 1425 169 12.6 36.4 0.7 112.8 16.0 61.8
MT 1442 172 18.4 35.4 3.3 112.8 16.0 62.5
WB GUNNISON 171 19.3 33.8 0.0 112.4 15.2 63.5
SY SOREN 171 28.4 31.4 0.0 112.3 16.1 63.1
MT 1427 168 18.4 35.1 1.3 112.2 15.4 60.9
MT 1404 172 9.8 35.0 29.0 112.0 15.2 62.0
CHOTEAU 171 12.4 34.6 0.0 111.7 15.5 61.8
MT 1454 169 12.4 35.1 0.0 110.7 15.0 61.3
MT 1320 168 11.3 35.8 1.7 110.4 16.5 62.6
MT 1337 168 12.6 36.8 0.0 110.1 15.8 61.9
MT 1319 168 11.2 35.3 0.0 109.8 16.0 61.5
MT 1316 168 10.1 33.6 0.0 108.7 16.7 61.4
MT 1455 170 12.6 33.1 0.0 107.7 15.9 61.5
MT 1432 170 9.4 32.9 3.3 107.3 16.0 60.9
MT 1415 173 9.5 33.9 0.0 107.2 15.8 63.6
MT 1349 171 12.9 34.8 0.0 107.0 16.0 59.6
MT 1413 172 17.8 35.7 0.0 106.9 14.7 61.5
SY TYRA 171 41.8 30.6 0.0 106.4 14.3 63.1
MT 1439 170 12.1 35.4 0.0 106.0 15.4 61.9
MT 1417 173 16.2 35.2 1.7 105.5 16.0 62.3
MT 1424 173 19.3 33.3 0.0 104.6 15.3 62.2
MT 1436 170 14.4 36.6 0.7 103.8 15.0 61.3
MT 1447 169 9.8 34.6 3.3 103.7 16.2 61.0
MT 1421 171 16.3 36.3 0.0 102.9 16.2 60.9
BRENNAN 169 18.8 30.8 0.0 102.4 15.9 62.6
MT 1448 170 8.7 34.8 26.7 100.8 15.1 61.5
MCNEAL 173 19.6 31.5 0.0 99.7 15.1 61.7
MT 1434 168 30.5 34.1 0.0 95.6 15.2 61.1
FORTUNA 171 11.1 41.7 30.0 95.4 15.9 61.6
THATCHER 174 14.9 45.4 28.3 93.9 16.1 61.2
WB 9507 172 41.1 35.9 8.3 92.9 14.1 59.5
MT 1408 173 36.5 33.9 0.0 91.1 14.5 61.5
LNR-0757 173 47.5 35.8 0.0 90.7 13.5 59.8
MT 1429 169 26.7 34.7 1.7 89.2 15.9 61.2
Mean 170 16.9 35.2 5.7 111.2 15.5 61.9
LSD at 0.05 1.5 13.6 2.4 24.1 10.3 NA NA
HD: heading date, SR: stripe rust, HT: height, LOD: lodging, YLD: yield, PRO: protein, TWT: test weight       
¹adjusted to 13% moisture, ²adjusted to 12%