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Protein Concentration of Winter Wheat Varieties in Oklahoma - 2022-2023

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 exist, variability in protein among environments is generally much larger. Factors such as nitrogen (N) fertilization and drought stress, for example, can sharply impact final wheat protein concentration.

To reflect these management and environmental impacts on wheat protein concentration, data are reported by variety and location in Table 1. In Table 2, it shows the wheat protein concentration by variety as a deviation from the location mean. This allows for easier comparison of wheat protein among varieties across locations. Doublestop CL Plus and Green Hammer, for example, showed positive deviation from the location mean in all of this year's trials where it was planted, indicating a tendency for above-average wheat protein concentration. Adequate and timely N fertility as recommended by a recent soil test or sensor-based N management program can help ensure that varieties with lower than average protein produce wheat or flour protein within the acceptable range for the end-users.

However, protein quantity should not be considered a barometer for protein quality (i.e., dough strength and functionality), though high protein quantity and quality can occur in the same variety. Doublestop CL Plus is one example. Iba is a prime example of how protein data can sometimes be misleading, as the functionality of the protein in Iba is above average, which can offset lower absolute protein concentration. More information on end-use quality is available in Current Report 2165, Wheat and Flour Quality for Varieties Tested in the 2016 OSU Variety Performance Tests.

Procedures 

Approximately 600 g subsamples of wheat grain were collected at harvest from four field replicates of all entries for each Oklahoma State University Wheat Variety Performance Test. Each test was properly fertilized and managed according to OSU Extension recommendations. Additional information on test locations and management practices is available in Current Report 2143, 2022-2023 Oklahoma Small Grains Variety Performance Tests online at www.wheat.okstate.edu. Samples were analyzed nondestructively immediately after harvest for wheat protein concentration on a 12% moisture basis, using a Diode Array Near Infrared (NIR) moisture and protein instrument (model DA 7200, Perten Instruments, Sweden). The expected wheat protein concentration for hard red winter wheat in the Southern Great Plains resides in the 10% to 15% range. Grain samples with extremely high protein concentration (e.g., 18-21%) were also analyzed using the LECO and Elemental CN combustion method and results were confirmed. Overapplication of N in a low-yielding drought year could inflate grain protein concentration values.

Data Interpretation 

At the bottom of Table 1, the mean and least significant difference (LSD) values are reported. The LSD is a test statistic that aids in determining whether there is a true difference in protein. In this report, one can be 95% confident that the difference between two varieties is real if the difference is greater than the LSD value. Data that is not statistically different is indicated by “NS.” For example, if the LSD value is 1% in a trial where Variety A had 13% protein and Variety B had 10% protein, then Variety A would be considered to have a statistically higher protein. However, if Variety C had 12% protein, then Variety A and Variety C would be considered to have a similar protein. In that same example trial, there is a 5% chance that the 1% protein difference between Variety A and Variety B does not truly exist, but random chance caused the difference. These chance factors may include differences in fertility, moisture availability and diseases. To aid in visualizing the varieties with the highest protein, values highlighted in gray do not differ statistically from the highest value within a column.

Table 1. Wheat protein concentration (12% moisture basis) of varieties and experimental lines tested in the 2022-2023 Oklahoma Wheat Variety Performance Tests. 

 
LicenseeVarietyAltusAlvaApache IMBalkoCherokeeChickashaChickasha IM
  ----protein concentration %

protein concentration %protein concentration %protein concentration %protein concentration %----
AgriMaxxAM Cartwright18.617.114.214.516.614.113.9
AGSECOAG Golden18.114.812.513.5--12.812.9
AGSECOAG Radical20.6------16.015.414.5
AgriProAP Bigfoot17.0--12.7----13.213.7
AgriProAP EverRock--------17.513.114.9
AgriProAP Longjack18.7--------14.715.5
AgriProAP Prolific----------13.813.6
AgriProBob Dole--16.7----17.413.514.0
AgriProSY Wolverine--17.0--14.916.9----
CroplanCP7017AX16.415.012.513.215.113.213.7
CroplanCP7266AX17,1--12.8----13.313.7
KWAKS Ahearn18.915.8--14.315.613.913.5
KWAKS Providence18.416.413.514.516.713.313.3
LCSLCS Atomic AX16.516.512.915.415.713.112.8
LCSLCS Chrome18.8--------14.914.4
LCSLCS Galloway AX19.3--------14.815.9
LCSLCS HelixAX17.2------15.212.913.2
LCSLCS Julep18.5--13.5--15.813.714.2
LCSLCS Photon AX17.918.014.316.3--14.014.0
LCSLCS Steel AX17.7--------13.313.8
OGIBakers's Ann--16.7--15.616.6----
OGIBentley17.3----15.1------
OGIBig County--16.7----17.314.515.0
OGIBreakthrough------14.4------
OGIButler's Gold18.919.314.0--19.314.514.7
OGIButler's Gold (late-planted)17.8--15.417.4------
OGIDoublestop CL+18.318.013.9--17.415.315.9
OGIGallagher18.316.313.014.116.813.713.6
OGIGreen Hammer 18.918.414.7--19.215.816.0
OGIHigh Cotton18.116.213.414.417.113.313.5
OGIIba17.715.013.013.714.9----
OGILonerider------15.7------
OGIOK Corral19.216.112.914.917.113.614.1
OGIShowdown18.815.912.714.116.413.213.2
OGISmith's Gold17.717.113.714.716.313.714.1
OGIStrad CL+17.717.414.1--16.215.315.9
OGIUncharted17.016.713.3--15.913.813.9
PlainsGoldBreck18.0----14.2--13.213.8
PlainsGoldCanvas17.614.913.014.215.013.613.4
PlainsGoldCrescent AX17.317.412.914.715.313.113.1
PlainsGoldKivari AX17.1--------12.312.8
WatleyTAM112--------------
WatleyTAM115------14.5------
WatleyTAM204--------------
WestbredWB440118.416.612.6--16.212.913.3
WestbredWB442218.8------16.913.613.9
WestbredWB463218.716.8----16.712.812.9
WestbredWB479216.815.612.713.615.413.313.4
 Experimentals--------------
OSUOK15DMASBx7 ARS 6-818.416.513.8--16.414.815.2
OSUOK15MASBx7 ARS 8-2918.916.213.014.115.513.313.7
OSUOK16103083--------------
OSUOK16107133-19-318.317.414.0--17.514.214.0
OSUOK1820519.6   --  
OSUOK19225----13.5----13.913.6
 Mean18.116.513.414.616.513.814.0
 LSD (0.05)0.81.00.80.51.30.60.7

Notes: Protein was adjusted to 12% moisture content. Bold values are not statistically different from the highest value within a column. Due to the presence of weed seeds in the grain samples of the El Reno grain-only trial, grain protein concentration was not measured. Double-dashes "--" = data not available.

Table 1. Wheat protein concentration (12% moisture basis) of varieties and experimental lines tested in the 2022-2023 Oklahoma Wheat Variety Performance Tests. (cont'd)

 
LicenseeVarietyEL Reno DPKildareLahomaLahoma IMMorris IMWalters DP
  ----protein concentration %

----
AgriMaxxAM Cartwright12.917.515.114.915.011.2
AGSECOAG Golden----13.413.4--9.4
AGSECOAG Radical12.314.915.015.714.210.1
AgriProAP Bigfoot----15.215.313.2--
AgriProAP EverRock12.716.315.916.814.5--
AgriProAP Longjack----15.615.3----
AgriProAP Prolific12.116.114.915.0----
AgriProBob Dole----15.416.014.4--
AgriProSY Wolverine----15.715.6----
CroplanCP7017AX12.5--14.515.114.010.6
CroplanCP7266AX--16.314.715.1----
KWAKS Ahearn12.715.815.215.613.411.0
KWAKS Providence--16.015.014.813.4--
LCSLCS Atomic AX12.715.813.915.413.310.2
LCSLCS Chrome----15.615.6--12.0
LCSLCS Galloway AX----15.415.5----
LCSLCS Helix AX--16.414.214.8----
LCSLCS Julep----15.515.814.2--
LCSLCS Photon AX----15.715.915.011.6
LCSLCS Steel AX--15.915.015.6----
OGIBaker's Ann--16.415.315.4----
OGIBentley--16.215.415.4----
OGIBig Country12.515.715.415.815.2--
OGIBreakthrough------------
OGIButler's Gold13.518.916.817.7----
OGIButler's Gold (late-planted)----19.219.4----
OGIDoublestop CL+13.116.916.817.0--12.0
OGIGallagher12.315.414.714.713.911.0
OGIGreen Hammer13.718.016.916.8--12.2
OGIHigh Cotton13.115.614.714.813.710.7
OGIIba--16.113.913.7--10.7
OGILonerider------------
OGIOK Corral12.316.315.015.113.710.9
OGIShowdown11.815.514.714.9--10.2
OGISmith's Gold12.215.815.415.413.910.8
OGIStrad CL+13.716.817.116.5--11.8
OGIUncharted12.416.215.815.513.611.9
PlainsGoldBreck11.915.914.715.2----
PlainsGoldCanvas----14.414.8--10.0
PlainsGoldCrescent AX12.116.614.414.914.010.1
PlainsGoldKivari AX----13.614.7----
WatleyTAM112------------
WatleyTAM115------------
WatleyTAM204------------
WestbredWB440111.915.514.314.512.39.8
WestbredWB442212.2--15.416.3--10.9
WestbredWB463211.317.314.114.212.5--
WestbredWB4792----15.115.2--10.1
 Experimentals------------
OSUOK15DMASBx7 ARS 6-812.916.715.515.2--11.1
OSUOK15MASBx7 ARS 8-2911.116.314.514.213.210.5
OSUOK16103083--17.8----14.9--
OSUOK16107133-19-313.118.316.416.614.112.1
OSUOK1820512.4     
OSUOK19225--------14.6--
 Mean12.516.415.215.413.910.9
 LSD (0.05)0.71.60.60.50.50.7

Notes: Protein was adjusted to 12% moisture content. Bold values are not statistically different from the highest value within a column. Due to the presence of weed seeds in the grain samples of the El Reno grain-only trial, grain protein concentration was not measured. Double-dashes "--" = data not available

Table 2. Wheat protein concentration relative to the location mean (expressed as a deviation) for varieties and experimental lines in the 2022-2023 Oklahoma Wheat Variety Performance Tests. 

 
LicenseeVarietyAltusAlvaApache IMBalkoCherokeeChickashaChickasha IM
  ----% Wheat protein relative to location mean----
AgriMaxxAM Cartwright0.40.60.8-0.10.10.3-0.1
AGSECOAG Golden0.0-1.7-0.9-1.4---1.0-1.1
AGSECOAG Radical2.5-------0.61.60.4
AgriProAP Bigfoot-1.1--0.7-----0.7-0.3
AgriProAP EverRock--------1.0-0.70.0
AgriProAP Longjack0.6--------0.91.5
AgriProAP Prolific----------0.0-0.4
AgriProBob Dole--0.2----0.9-0.3-0.1
AgriProSY Wolverine--05--030.0----
CroplanCP7017AX-1.7-1.5-0.9-1.4-1.4-0.7-0.3
CroplanCP7266AX-0.1---0.6-----0.5-0.3
KWAKS Ahearn0.8-0.7---0.4-0.90.1-0.5
KWAKS Providence0.2-0.10.1-0.10.2-0.5-0.7
LCSLCS Atomic AX-1.6-0.1-0.50.8-0.8-0.7-1.2
LCSLCS Chrome0.7--------1.10.4
LCSLCS Galloway AX1.2--------1.01.0
LCSLCS Helix AX-0.9-------1.3-0.9-0.8
LCSLCS Julep0.4--0.0---0.8-0.10.2
LCSLCS Photon AX-0.21.50.91.7--0.20.4
LCSLCS Steel AX-0.4---------0.6-0.2
OGIBaker's Ann--0.1--1.00.1----
OGIBentley-0.8----0.5------
OGIBig Country--0.2----0.80.71.0
OGIBreakthrough-------0.2------
OGIButler's Gold0.82.80.6--2.80.70.7
OGIButler's Gold (late-planted)-0.3--2.02.8------
OGIDoublestop CL+021.50.4--0.91.51.9
OGIGallagher0.2-0.2-0.4-0.50.3-0.1-0.4
OGIGreen Hammer071.91.3--2.72.02.0
OGIHigh Cotton0.0-0.30.0-0.30.6-0.5-0.5
OGIIba-0.4-1.5-0.4-0.9-1.6----
OGILonerider------1.1------
OGIOK Corral1.1-0.4-0.5-0.10.6-0.20.1
OGIShowdown0.7-0.7-0.7-0.5-0.1-0.6-0.8
0.8Smith's Gold-0.50.60.30.0-0.3-0.10.1
OGIStrad CL+-0.50.90.7---0.31.51.9
OGIUncharted-1.1 -0.3-0.2---0.60.0-0.1
PlainsGoldBreck-0.1-----0.4---0.6-0.2
PlainsGoldCanvas-0.6-1.6-0.4-0.4-1.5-0.2-0.6
PlainsGoldCrescent AX-0.80.9-0.50.1-1.2-0.7-0.9
PlainsGoldKivari AX-1.1---------1.5-1.2
WatleyTAM112--------------
WatleyTAM115-------0.1------
WatleyTAM204--------------
WestbredWB44010.30.1-0.9---0.3-0.9-0.7
WestbredWB44220.6------0.4-0.3-0.1
WestbredWB46320.60.3----0.2-1.0-1.1
WestbredWB4792-1.3-0.9-0.7-0.7-1.1-0.5-0.6
 Experimentals-------
OSUOK15DMASBx7 ARS 6-80.60.00.4---0.11.01.2
OSUOK15MASBx7 ARS 8-290.7-0.3-0.4-0.5-1.1-0.6-0.4
OSUOK16103083--------------
OSUOK16107133-19-30.20.90.6--1.00.40.0
OSUOK182051.4   --  
OSUOK19225----0.1----0.1-0.4
 Location Mean18.116.513.414.616.513.814.0

Notes: Protein was adjusted to 12% moisture content. Double-dashes "--" = data not available.

Table 2. Wheat protein concentration relative to the location mean (expressed as a deviation) for varieties and experimental lines in the 2022-2023 Oklahoma Wheat Variety Performance Tests. (cont'd) 

 
LicenseeVarietyEL Reno DPKidareLahomaLahoma IMMorris IMWalters DP
  ----% Wheat protein relative to location mean----
AgriMaxxAM Cartwright0.41.1-0.1-0.51.10.3
AGSECOAG Golden-----1.8-2.0---1.5
AGSECOAG Radical-2.0-1.5-0.20.30.3-.80
AgriProAP Bigfoot----0.0-0.1-0.7--
AgriProAP EverRock0.2-0.10.71.40.6--
AgriProAP Longjack----0.4-0.2----
AgriProAP Prolific-0.4-0.3-0.3-0.4----
AgriProBob Dole----0.20.60.5--
AgriProSY Wolverine----0.50.2----
CroplanCP7017AX0.0---0.7-0.30.0-0.3
CroplanCP7266AX---0.1-0.5-0.3----
KWAKS Ahearn0.2-0.60.00.2-0.50.1
KWAKS Providence---0.4-0.3-0.6-0.6--
LCSLCS Atomic AX0.2-0.6-1.3-0.1-0.6-0.8
LCSLCS Chrome----0.40.2--1.1
LCSLCS Galloway AX----0.20.0----
LCSLCS Helix AX--0.0-1.1-0.6----
LCSLCS Julep----0.30.40.3--
LCSLCS Photon AX----0.50.51.10.7
LCSLCS Steel AX---0.5-0.30.2----
OGIBaker's Ann--0.00.10.0----
OGIBentley---0.30.20.0----
OGIBig Country0.0-0.70.20.41.3--
OGIBreakthrough------------
OGIButler's Gold1.02.51.62.3----
OGIButler's Gold (late-planted)----4.04.0----
OGIDoublestop CL+0.60.51.61.6--1.1
OGIGallagher-0.2-1.0-0.5-0.70.00.1
OGIGreen Hammer1.21.61.71.4--1.3
OGIHigh Cotton0.6-0.8-0.5-0.6-0.2-0.2
OGIIba---0.3-1.4-1.7--0.3
OGILonerider------------
OGIOK Corral-0.2-0.1-0.2-0.3-0.20.0
OGIShowdown-0.7-0.9-0.5-0.5---0.7
OGISmith's Gold-0.3-0.60.2-0.1-0.1-0.1
OGIStrad CL+1.20.41.91.1--0.9
OGIUncharted-0.1-0.30.60.1-0.31.0
PlainsGoldBreck-0.6-0.5-0.5-0.2----
PlainsGoldCanvas-----0.8-0.7---1.0
PlainsGoldCrescent AX-0.40.2-0.8-0.50.1-0.8
PlainsGoldKivari AX-----1.7-0.7----
WatleyTAM112------------
WatleyTAM115------------
WatleyTAM204------------
WestbredWB4401-0.7-0.9-0.9-0.9-1.6-1.2
WestbredWB4422-0.3--0.20.9--0.0
WestbredWB4632--0.9-1.1-1.2-1.4--
WestbredWB4792-----01-0.3---0.8
 Experimentals------------
OSUOK15DMASBx7 ARS 6-80.40.30.3-0.3--0.2
OSUOK15MASBx7 ARS 8-29---0.1-0.8-1.2-0.8-0.4
OSUOK16103083--1.4----1.0--
OSUOK16107133-19-30.61.91.21.20.21.2
OSUOK18205-0.1----------
OSUOK19225--------0.7--
 Location Mean12.516.415.215.413.910.9

Notes: Protein was adjusted to 12% moisture content. Shaded values are not statistically different from the highest value within a column. Due to the presence of weed seeds in the grain samples of the El Reno grain-only trial, grain protein concentration was not measured. Double-dashes "--" = data not available.

Participating Seed Companies 

 
 Company InformationCompany Information

 

AgriMAXX Wheat Company

Matt Wehmeyer

7167 Highbanks Road
Mascoutah, IL 62258
Phone: (855) 629-9432
Email: matt@agrimaxxwheat.com
www.agrimaxxwheat.com
Variety: AM Cartwright 

Limagrain Cereal Seeds (LCS) 
Daniel Dall
1250 N Main St.
Benton, KS 67017
Phone: (316) 452-3505
Email: daniel.dall@limagrain.com
www.limargraincerealseeds.com
Varieties: LCS Atomic AX, LCS Chrome, LCS Helix AX, LCS Julep, LCS Photon AX, LCS Galloway, LCS Steel AX

 

AgriPro
Greg McCormack
8750 NW 66th st.
Silver Lake, KS 66539
Phone: (620) 532-6283
Email: greg.mccormack@syngenta.com
www.agriprowheat.com

Varieties: AP EverRock, AP Bigfoot, AP Longjack, AP Prolific, Bob Dole, SY Wolverine

Oklahoma Genetics Inc. (OGI) 
Mark Hodges
201 South Range Road
Stillwater, OK 74074
Phone: (405) 744-4347
Email: hodgesm1@cox.net
www.okgenetics.com
Varieties: Baker's Ann, Bentley, Big Country, Breakthrough, Butler's Gold, Doublestop CL+, Gallagher, Green Hammer, High Cotton, Iba, Lonerider, OK Corral, Showdown, Smith's Gold, Strad CL+, Uncharted

 

AGSECO, Inc.

Steve Ahring

P.O. Box 7

Girard, KS 66743

Phone: (620) 724-6223

Email: steve@delangeseed.com
www.agseco.com

Varieties: AG Golden, AG Radical

PlainsGold (Colorado Wheat Research Foundation) 
Brad Erker/Tyler Benninghoven
4026 S. Timberline Road Suite 100
Fort Collins, CO 80525
Phone: (970) 449-6994
Email: tbenninghoven@coloradowheat.org
www.plainsgold.com
Varieties: Breck, Canvas, Crescent AX, Kivari AX

 

CROPLAN by Winfield United

Cameron Aker

500 North 1st street

Vincent, IA 50594

Garrison, ND 58540

Phone: (515) 356-4524

Email: claker@landolakes.com
www.croplan.com

Varieties: CP7017 AX, CP7266 AX

 

WestBred
John Fenderson/Lance Embree
1616 E. Glencoe Road
Stillwater, OK 74075
Phone: (620) 243-4263
Email: john.fenderson@bayer.com
www.westbred.com
Varieties: WB4401, WB4422, WB4523, WB4632, WB4792

 

Kansas Wheat Alliance (KWA) 
Bryson Haverkamp
1990 Kimball Ave. Suite 200
Manhattan, KS 66502
Phone: (785) 320-4080
Email: bryson@kswheatalliance.com
www.kswheatalliance.org
Varieties: KS Ahearn, KS Providence

 
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