Phil Bruckner and Jim Berg, Winter Wheat Breeding Program
Updated 12/2018

Downloadable version

Loma is a semi-solid stemmed, hard red winter wheat with improved yield potential (Tables 1, 2) relative to other solid stemmed varieties. Loma was developed by the Montana Agricultural Experiment Station and released to seed growers in 2016. Loma (Yellowstone//MTS0112/MTS0125) was a cross between Yellowstone and 2 unreleased solid-stemmed experimental lines. Loma is an awned, white-glumed, medium short wheat with medium to late maturity. Loma performs well in locations where sawfly cutting has occurred (Table 2). Stem solidness is less than to Judee (Table 3). Loma has average test weight and protein, and average winter hardiness (Table 4). Loma is resistant to prevalent races of stripe and stem rust, but susceptible to leaf rust. Loma is a medium low PPO variety with above average mill and bake properties (Table 5).  

To be sold by variety name only as a class of certified seed. Montana State University Research Fees due on seed sold. PVP Title V is pending (Certificate #201700021).

 

Table 1. Yield of Loma vs. a Set of Varieties (2012-2018)1/

Variety
Districts
All Locations
1
2
3
4
5
5
6
Kalispell
Bozeman
Huntley2/
Moccasin3/
Conrad4/
Havre5/
Sidney & Williston
Location years 4 11 26 25 20 30 6 122
Yellowstone
 114.9 99.3 71.3 60.1 75.7 57.9 59.3 69.8
Loma
 125.0 97.0 68.0 57.7 74.7 55.1 51.6 67.5
Warhorse
 120.1 87.3 66.4 55.4 64.3 53.8 46.5 63.3
Decade
 62.3 79.6 67.7 57.5 69.1 54.7 53.5 62.8
Judee
 118.8 86.0 62.3 52.7 70.0 54.6 45.0 62.8
LSD (0.05) 26.0 7.0 3.0 2.9 3.7 2.8 6.6 2.0
  • bold-italics indicates highest value within a column
  • bold indicates values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
  • ns = non-significant
  • 1/ includes 2012-2018 sawfly; 2014-2016, 2018 intrastate and 2015-2018 off station tests
  • 2/ includes data from Billings, Fort Smith, Hardin area, Hysham, Molt, Rapelje
  • 3/ includes data from Belt, Denton, Geraldine, Highwood, Winifred
  • 4/ includes data from Choteau, Cut Bank, The Knees, Shelby
  • 5/ includes data from Big Sandy, Carter, Gildford, Loma, Turner

 

Table 2. Loma: Yield Performance Under Sawfly Pressure (test average cutting ≥ 10%) and % Sawfly Cutting (2012-2018)

Variety
Yield (bu/a)
Sawfly Cutting (%)
Location years 17 17
Loma
 59.3 28
Judee
 57.3 33
Yellowstone
 56.6 54
Decade
 56.3 44
Warhorse
 54.5 6
LSD (0.05) ns 11
  • bold-italics indicates highest value within a column
  • bold indicates values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
  • ns = non-significant

 

Table 3. Stem Solidness as Ratings of Loma Compared to Other Solid-Stemmed Varieties (2015-2018)

Variety
Stem solidness rating (scale 5-25, higher = more solid)
Stem solidness by location (2015-2018)
2018
2017
2016
2015
2015-2018
Billings
Bozeman
Conrad
Havre1/
Moccasin
Location years 9 11 6 3 29 2 6 4 14 3
Judee
 22.3 18.4 20.0 19.4 20.1 22.0 17.4 21.5 20.2 21.7
Loma
 22.5 19.3 17.9 17.3 19.8 22.8 16.7 20.1 20.7 19.8
MTS1588
 23.8 22.9 22.3 22.0 22.9 23.0 22.6 23.1 23.1 22.5
Warhorse
 22.5 21.1 21.4 21.9 21.7 22.6 20.5 22.0 22.0 22.2
LSD (0.05) ns 1.3 2.0 ns 0.8 ns 2.3 ns 1.1 ns
  • bold-italics indicates highest value within a column
  • bold indicates values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
  • ns = non-significant
  • 1/ includes Big Sandy, Carter, Gildford, and Loma

 

Table 4. Agronomic Characteristics of Loma vs. a Set of Recommended Varieties (2012-2018)1/

Variety
Test weight (lb/bu)
Winter survival (%)
Heading date
Plant height (in)
Lodging (%)
Protein (%)
Sawfly cutting (%)
Strip rust (%)
Coleoptile length (in)
Julian
Calendar
Location years 120 3 58   120 16 120 24 8 1
Decade
 59.6 81 159.2 8-Jun 31.2 25 12.7 33 53 2.9
Judee
 60.6 43 159.8 9-Jun 30.8 29 12.9 24 9 3.7
Loma
 59.5 75 162.4 11-Jun 29.5 28 12.6 21 10 2.8
Warhorse
 59.8 70 161.1 10-Jun 30.7 16 13.0 5 8 3.2
Yellowstone
 59.5 84 161.2 10-Jun 32.8 27 12.4 41 21 2.8
LSD (0.05) 0.3 24 0.4   0.3 ns 0.1 9 12 0.2
  • bold-italics indicates highest value within a column
  • bold indicates values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
  • ns = non-significant
  • 1/ includes 2012-2018 sawfly; 2014-2016, 2018 intrastate and 2015-2018 off station tests

 

Table 5. Mill and Bake Characteristics of Loma vs. Recommended Varieties (2012-2017): Combined Sawfly tests (2012-2017) and 2014-2016 Intrastate Test

Variety
PPO1/
Kernel hardness
Flour
Mixograph
Baking
Yield (%)
Protein (%)
Ash (%)
Tolerance (1-6)
Mix time (min)
Absorption (%)
Mix time (min)
Absorption (%)
Volume (cc)
Location years 29 29 29 29 29 29 29 29 29 29 29
Decade
 0.271 74.1 68.9 11.9 0.41 4.2 8.9 66.2 20.9 76.6 1066
Judee
 0.262 78.8 69.0 12.3 0.40 3.9 5.9 63.7 10.5 73.7 1161
Loma
 0.163 79.9 71.0 11.8 0.41 3.9 6.9 65.5 17.2 76.6 1126
Warhorse
 0.258 88.9 68.8 12.4 0.43 2.9 5.0 64.5 8.6 74.9 1091
Yellowstone
 0.227 78.0 69.5 11.7 0.42 4.3 8.4 64.8 16.3 75.5 1073
LSD (0.05) 0.020 1.8 0.5 0.3 0.01 0.4 0.8 1.0 1.7 1.0 28
  • bold-italics indicates highest value within a column
  • bold indicates values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
  • 1/ polyphenol oxidase, low is best for noodles