Protein Content of Winter Wheat Varieties in Oklahoma – 2016-2017

General Information

Protein is just one of many attributes that determines end-use quality and marketability of winter wheat. In fact, some millers and bakers would argue that functionality of wheat protein is more important than the quantity of protein. While varietal differences commonly exist, variability in protein among environments is generally much larger than variability among varieties. Factors such as N fertility and drought stress, for example, can sharply impact final protein wheat content.

To reflect these management and environmental impacts on wheat protein content, data are reported by variety and location in Table 1. Table 2 reports the wheat protein content by variety as a deviation from location mean, as this allows for easier comparison of wheat protein among varieties across locations. Doublestop CL Plus, for example, is a variety which showed positive deviation from the location mean in 90 percent of this year’s trials, indicating it has a tendency for above-average wheat protein content. Iba, on the other hand, showed a negative deviation from location mean in 75 percent of the trials, indicating a tendency for lower than average wheat protein content. Varieties which showed a consistent, relatively high wheat protein content across the regional performance trial locations this year and have a history of acceptable or desirable dough quality (i.e., good protein quality) include Bob Dole, Doublestop CL Plus, Stardust, SY Drifter,and WB4458.

Adequate N fertility as recommended by a recent soil test or sensor-based nitrogen management program can help ensure that varieties such as Iba produce wheat or flour protein within the acceptable range for end-use customers. Iba is also a prime example of how protein data can sometimes be misused, as the functionality of the protein in Iba is above average, which can offset lower absolute protein content. More information on end-use quality is available in Current Report CR-2165, Wheat and Flour Quality for Varieties Tested in the 2016 OSU Variety Performance Tests.

 

Procedures

Approximately 600-gram subsamples of wheat grain were collected from the OSU Wheat Variety Performance Test plots at harvest. These plots were well-fertilized and managed according to OSU Cooperative Extension recommendations. Additional information on test locations and management practices is available in Current Report CR-2143, 2016-2017 Oklahoma Small Grains Variety Performance Tests on the web at www.wheat.okstate.edu. Samples were stored in plastic containers for approximately one month following harvest. Samples were nondestructively analyzed for protein content on a 12 percent moisture basis using a Diode Array Near Infrared instrument (NIR) (model DA 7200, Perten Instruments, Sweden).

 

Funding provided by:

• Oklahoma Wheat Commission
• Oklahoma Wheat Research Foundation
• Oklahoma Cooperative Extension Service
• Oklahoma Agricultural Experiment Station
• Entry fees from participating seed companies

 

We sincerely thank our variety trial cooperators for donation of land, time and resources. Variety trial cooperators include:

• Afton – Greg Leonard
• Altus – OSU Southwest Research and Extension Center
• Alva – Jerad Bradt & Wes Mallory
• Apache – Bryan Vail
• Balko – Kenton Patzkowsky
• Buffalo – NRCS
• Cherokee – Kenneth Failes
• Chickasha – OSU South Central Research Station
• Goodwell – Oklahoma Panhandle Research and
• Extension Center
• Homestead – Brook Strader
• Hooker – Dan & Ernest Herald
• Keyes – J.B. Stewart
• Kildare – Don Schieber
• Kingfisher – Mueggenborg Family
• Lahoma – OSU North Central Research Station
• Lamont – Don & Roger Kirby
• Marshall – Dean Fuxa
• Thomas – Keith Miller
• Union City – Don & Ray Bornemann
• Walters – Jimmy Kinder

 

Table 1a. Wheat protein content (12% moisture basis) of varieties and experimental lines tested in the 2016-2017 Oklahoma Wheat Variety Performance Tests.

Notes: Shaded values are not statistically different from the highest value within a column (i.e., location). NS = not significant.

 

 

Table 1b. Wheat protein content (12% moisture basis) of varieties and experimental lines tested in the 2016-2017 Oklahoma Wheat Variety Performance Tests.

 

Table 1c. Wheat protein content (12% moisture basis) of varieties and experimental lines tested in the 2016-2017 Oklahoma Wheat Variety Performance Tests. (cont'd).

 

Table 1d. Wheat protein content (12% moisture basis) of varieties and experimental lines tested in the 2016-2017 Oklahoma Wheat Variety Performance Tests. (cont'd).

Notes: Shaded values are not statistically different from the highest value within a column (i.e., location). NS = not significant.

 

 

Table 2a. Wheat protein content relative to the location mean (expressed as a deviation) for varieties and experimental lines in the 2016-2017 Oklahoma Wheat Variety Performance Tests.

 

Table 2b. Wheat protein content relative to the location mean (expressed as a deviation) for varieties and experimental lines in the 2016-2017 Oklahoma Wheat Variety Performance Tests.

 

Table 2c. Wheat protein content relative to the location mean (expressed as a deviation) for varieties and experimental lines in the 2016-2017 Oklahoma Wheat Variety Performance Tests. (cont'd).

 

Table 2d. Wheat protein content relative to the location mean (expressed as a deviation) for varieties and experimental lines in the 2016-2017 Oklahoma Wheat Variety Performance Tests. (cont'd).

 

PARTICIPATING SEED COMPANIES

 

AGSECO, Inc.

Steve Ahring
P.O. Box 7
Girard, KS 66743
Phone: (800) 962-5429
Email: steve@delangeseed.com
www.agseco.com
Varieties: AG Robust, Hot Rod, TAM 114

 

Colorado Wheat Research Foundation (PlainsGold)

Brad Erker
4026 S. Timberline Rd. Ste. 100
Fort Collins, CO 80525
Phone: (970) 449-6994
www.coloradowheat.org
Varieties: Avery, Brawl CL Plus, Byrd, Langin

 

Dyna-Gro Seed

Ryan Klamforth
Phone: (419) 310-6370
www.dynagroseed.com
Varieties: Long Branch

 

Kansas Wheat Alliance (KWA)

Daryl Strouts
1990 Kimball Ave.
Manhattan, KS 66502
Phone: (785) 320-4080
Email: kwa@kansas.net
www.kswheatalliance.org
Varieties: Joe, KS-61193K-2 (Bob Dole), KS080448C*-102 (AG Icon), Larry, Tatanka, Zenda

 

Limagrain Cereal Seeds (LCS)

Drew Hendricker
2040 SE Frontage Rd.
Fort Collins, CO 80525
Phone: (970) 498-2218
Email: drew.hendricker@limagrain.com
www.limargraincerealseeds.com
Varieties: LCS Chrome, LCS Mint, LCS Pistol, LCS Wizard, T158

 

Monsanto/WestBred

John Fenderson
1616 E. Glencoe Rd.
Stillwater, OK 74075
Phone: (620) 243-4263
Email: john.m.fenderson@monsanto.com
www.westbred.com
Varieties: WB4269, WB4303, WB4458, WB4515, WB4721, WB-Cedar, WB-Grainfield, Winterhawk

 

Oklahoma Genetics Inc. (OGI)

Mark Hodges
P.O. Box 2113
Stillwater, OK 74076
Phone: (405) 744-7741
www.okgenetics.com
Varieties: Bentley, Billings, Doublestop CL Plus, Duster, Gallagher, Iba, Lonerider, NF 101, Ruby Lee, Smith’s Gold, Spirit Rider, Stardust

 

Oklahoma Foundation Seed Services (OSU)

Jeff Wright
2902 W. 6th Ave.
Stillwater, OK 74074
Phone: (405) 744-7741
www.ofss.okstate.edu
Varieties: Endurance

 

Syngenta Seeds

Greg Gungoll
1517 Osage Ave.
Enid, OK 73703
Phone: (405) 714-2839
Email: greg.gungoll@syngenta.com
www.agriprowheat.com
Varieties: SY Achieve CL2, SY Benefit, SY Drifter, SY Flint, SY Grit, SY Llano, SY Monument, SY Razor, SY Rugged

 

Watley Seed

Andy Watley
Box 51
Spearman, TX 79081
Phone: (806) 659-3838
Email: watleyseed@valornet.com
www.watleyseed.com
Varieties: TAM 112, TAM 204