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

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FourOsix is a hard red winter wheat developed by the Montana Agricultural Experiment Station and available to certified seed growers in fall 2018. FourOsix is a medium maturing, short to medium statured wheat, with average winter-hardiness. FourOsix is a high yielding variety with above average test weight and average protein. FourOsix (50% Yellowstone, in pedigree) is similar in grain yield of Yellowstone (Table 1), but with significantly earlier heading, shorter plant height, and significantly higher test weight and protein (Table 2). FourOsix is resistant to stripe rust and this resistance is either similar to or significantly higher than that of Yellowstone. FourOsix is moderately susceptible to stem rust. FourOsix has excellent milling and baking qualities, comparable to Decade and Parental cultivar, Yellowstone (Table 3). PVP Title V will be applied for.

 

Table 1. Yield of FourOsix vs. a Set of Varieties (2016-2018)1/

Variety
Districts
All Locations
1
2
3
4
5
5
6
Kalispell
Bozeman
Huntley2/
Moccasin3/
Conrad4/
Havre5/
Sidney & Williston
Location years 2 2 12 10 10 8 4 48
Keldin
 101.2 115.1 92.2 64.0 73.8 58.1 67.8 76.1
SY Monument
 105.6 114.8 87.3 64.2 71.2 58.4 62.1 74.1
Northern
 106.0 116.0 86.4 59.4 69.6 58.4 59.5 72.4
Yellostone
 89.3 116.2 84.2 60.3 70.4 58.2 60.5 71.6
FourOsix
 113.7 111.4 84.5 61.9 68.7 54.8 56.0 71.5
SY Wolf
 85.1 99.0 86.7 62.2 68.7 54.5 62.4 70.9
Decade
 33.5 90.2 81.5 60.7 64.2 54.1 56.2 65.2
LSD (0.05) ns ns ns ns 4.2 ns ns 3.5
  • 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/ 2016, 2018 intrastate and 2018-2018 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 Kneew, Shelby
  • 5/ includes data form Carter, Loma, Turner

 

Table 2. Agronomic Characteristics of FourOsix vs. a Set of Varieties, 2016-20181/

Variety
Test weight (lb/bu)
Winter survival (%)
Heading date
Plant height (in)
Lodging (%)
Protein (%)
Sawfly cutting (%)
Stripe rust (%)
Coleoptile length (in)
Julian
Calendar
Location years 45 1 18   47 7 47 10 2 1
Decade
 60.4 69 157.5 7-Jun 30.4 26 12.7 38 75 2.9
FourOsix
 60.9 48 158.1 7-Jun 29.5 27 12.3 48 22 2.8
Keldin
 61.4 57 158.3 7-Jun 30.2 32 12.1 45 50 2.8
Northern
 60.6 49 160.6 10-Jun 30.3 31 12.6 42 33 2.6
SY Monument
 60.2 60 156.5 6-Jun 29.3 26 11.7 45 18 3.1
SY Wolf
 61.9 51 156.6 5-Jun 29.1 30 12.4 33 33 3.1
Yellowstone
 60.1 62 159.7 9-Jun 31.8 29 12.2 48 51 2.7
LSD (0.05) 0.5 12 0.7   0.6 ns 0.2 ns 29 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

 

Table 3. Mill and Bake Characteristics of FourOsix vs. a Set of Varieties (2016-2017)

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 8 8 8 8 8 8 8 8 8 8 8
Decade
 0.249 74.1 70.2 10.9 0.41 3.5 7.2 66.4 19.2 76.6 988
FourOsix
 0.256 71.1 71.2 11.7 0.43 2.6 5.7 67.2 12.5 77.1 1074
Keldin
 0.328 64.6 70.0 10.7 0.44 3.0 5.0 63.6 9.0 73.9 956
Northern
 0.104 81.6 70.7 11.5 0.45 2.6 3.9 64.3 5.6 74.0 1033
SY Monument
 0.187 74.2 71.6 10.6 0.41 3.5 8.4 64.9 15.9 75.7 961
SY Wolf
 0.250 73.1 70.1 10.7 0.40 1.9 4.2 60.9 6.8 70.9 956
LSD (0.05) 0.042 3.7 0.7 0.5 0.02 0.6 1.3 2.4 3.3 2.4 40
  • 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