Solid-Stemmed Winter Wheat Varieties

Jim Berg and Jake Tracy, Winter Wheat Breeding Program, Montana State University
(Updated 10/2021)
Downloadable version

Description of selected varieties developed by MSU/MAES Winter Wheat Breeding Program:

Bobcat

A solid stemmed hard red winter wheat with improved yield potential (Tables 1, 2) relative to other solid stemmed varieties. Bobcat was developed by the Montana Agricultural Experiment Station and will be released to certified seed growers in fall 2019. Bobcat is a selection from a composite cross of 2 unreleased MT solid-stemmed experimental lines with an unreleased MT hollow-stemmed line. Bobcat is an awned, white0glumed, semi-dwarf wheat with medium to late maturity. Bobcat is the top performing in locations where sawfly cutting has occurred (Table 2). Stem solidness is excellent, significantly higher than Warhorse (Table 3). Bobcat has above average test weight to average protein, and average winter hardiness (Table 4). Bobcat is resistant to prevalent races of stripe and stem rust, but susceptible to leaf rust. Bobcat is a medium high PPO variety with above average mill and bake properties (Table 5). 
PVP Title V has been issued (Certificate #202000177)

Judee

A hard red winter wheat developed by the Montana Agricultural Experiment Station in 2011. Judee is a white-glumed, solid-stem, semi-dwarf (Rht1) wheat with medium maturity. Judee has average yield, test weight, and protein, and below average winter hardiness. Judee is susceptible to prevalent races of stem and leaf rust but resistant to stripe rust. Stem-solidness ofJudee is most similar to Genou. Judee is a high PPO variety with average mill and above average bake properties. 
PVP Title V has been issued (Certificate #201200161)

Loma

A semi-solid stemmed hard red winter wheat with improved yield potential relative to other solid stemmed varieties. Loma was developed by the Montana Agricultural Experiment Station and release 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 lake maturity. Loma perform well in locations where sawfly cutting has occurred. Stem solidness is less than Judee and WB Quake. 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 to low PPO variety with above average mill and bake properties. 
PVP Title V is issued (Certificate #201700021)

StandClear CLP

A hard red winter wheat developed by the Montana Agricultural Experiment Station for exclusive license to Nutrien Ag Solutions (Loveland Products Inc., Loveland, CO) with a full partnership agreement with BASF Chemical Company. StandClear CLP will be available to certified seed growers in fall 2020.StandClear CLP is a medium maturing, semisolid-stemmed, medium height wheat with white chaff. StandClear CLP has average yield, above average test weight, and average protein, with good winter survival. StandClear CLP has highPPO and average milling and baking characteristics. 
PVP Title V has been issued (Certificate # 202000183). Additionally, the CLEARFIELD genes are patented

Warhorse

An awned, white-glumed, solid-stemmed hard red winter wheat released in 2013 by the Montana Agricultural Experiment Station. Warharse has medium maturity and has medium short, semi-dwarf height. Warhorse's winter hardiness, rated at 4 on 0-5 scale, is an improvement over other solid stem varieties. Stem solidness is similar to that of Bearpaw and Rampart, while sawfly cutting of stems is very low (similar to Rampart). Warhorse yield is similar to Judee, while test weight and protein are above average. Warhorse is resistant to both stem and stripe rust. Warhorse has acceptable mill and bake qualities. 
PVP Title V has been issued (Certificate #201400131)

Table 1. Yield of Solid-Stemmed Varieties (2016-2021)^1/

• bold-italics indicates highest value within a column
• bold indicates varieties with values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
• ns indicates non-significant
• 1/ includes 2018-2021 intrastate, 2018-2021 off station, and 2016-2021 sawfly tests
• 2/ includes data from Fort Smith, Hardin area, Hysham, Molt, Rapelje
• 3/ includes data from Belt, Denton, Geraldine, Highwood, Judith Gap
• 4/ includes data from Choteau, Cut Bank, The Knees, Shelby
• 5/ includes data from Big Sandy, Fort Benton, Hingham, Gildford, Kremlin, Loma, Turner

Table 2. Solid-Stemmed Varieties: Yield Performance Under Sawfly Pressure (test average cutting ≥ 10%) and % Sawlfy Cutting (2016-2021)

• bold-italics indicates highest value within a column
• bold indicates varieties with values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)

Table 3. Stem Solidness Ratings of Solid-Stemmed Varieties (2016-2020)

• bold-italics indicates highest value within a column
• bold indicates varieties with values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
• ns indicates non-significant
• 1/ includes Big Sandy, Carter, Gildford, Hingham, Kremlin, and Loma

Table 4. Agronomic Characteristics of Solid-Stemmed Varieties (2016-2021)^1/

• bold-italics indicates highest value within a column
• bold indicates varieties with values equal to highest variety within a column based on Fisher's Protected LSD (p = 0.05)
• ns indicates non-significant
• 1/ includes 2018-2021 intrastate, 2018-2021 off station, and 2016-2021 sawfly tests

Table 5. Mill and Bake Bharictaristicsv. of Solid-Stemmed Varieties (2016-2020)

• bold-italics indicates highest value within a column
• bold indicates varieties with 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