Hard Red Spring Wheat

Alum, a newly released hard red spring wheat from Washington State University, is intended to provide growers with low soil pH and aluminum toxicity a very solid and broadly adapted hard red spring wheat variety.

Alum has very good adult plant stripe rust resistance, Hessian fly resistance, above average test weight, very good aluminum tolerance, medium plant height with good straw strength, and very good-to-excellent yield potential across the PNW. Alum should be of particular interest to growers in Spokane, eastern Whitman, Columbia, and Walla Walla counties in Washington, and in northern Idaho.


  • Yield Potential is Very Good–Excellent
  • Test Weight is Very Good
  • Protein is Average
  • Maturity is Medium-Later
  • Height is Medium
  • Quality is Most Desirable
  • Straw Strength is Very Good

Disease Resistance

Stripe Rust is Very Good Adult Resistance1

Hessian Fly is Resistant

Aluminum Tolerance is Excellent

1Early season application of fungicides should be considered to limit seedling infection.

Bred to Dominate the Field

Two-Year Variety Testing Data from 2015-2016

Variety>20” Yield (BU/A)12″-16″ Yield (BU/A)Test Weight (LBS/BU)Protein (%)Hessian Fly*
LCS Iron745559.813.2S
SY Coho715157.513.7S
SY Selway715059.814.0R
SY Steelhead684861.614.4S
LCS Buck Pronto654259.814.8S
SY605 CL593861.014.7S
LSD (0.05)230.20.2

>20″ Precip (Fairfield, Farmington, Palouse, Pullman) 2015-2016, 6 loc/years

12″-16″ (Almira, Endicott, Lamont, Reardan) 2015-2016, 3 loc/years

*Hessian fly ratings from the University of Idaho. R = Resistant, S = Susceptible.


Foundation seed of Alum is maintained by the Washington State Crop Improvement Association. For variety inquiries, contact Washington Genetics or by phone at 509-659-4020. U.S. Plant Variety Protection status for this cultivar is approved.

View WSU Variety Alum in pdf format (pdf).

Dryland Wheat Areas >12″ Precipitation, Especially All Low pH Areas

Dryland wheat areas with less than 16" precipitation zone in eastern Washington and northern Idaho.

Orange = Low pH
Teal = Dryland

Support for the development of this variety was provided by Washington State University, the USDA, and the Washington Grain Commission. For more information, visit smallgrains.wsu.edu.