Soft White Winter Two-Gene IMI Wheat

Stingray CL+ is a soft white winter two-gene Imidazolinone tolerant (Clearfield) wheat, developed and released in 2019 by the Agricultural Research Center of Washington State University. Stingray CL+ has excellent resistance to Imazamox herbicide applications under recommended label rates. This cultivar provides a combination of broad adaptability, excellent grain yield potential, high test weight, good end-use quality, and disease resistance. Stingray CL+ is adapted to the broad dryland production regions of Washington and Northern Oregon. The excellent agronomic and disease package of Stingray CL+, along with resistance to Imazamox, makes it an ideal cultivar for growers looking to control weeds and maximize profits on their farms.


  • Yield Potential is Excellent
  • Protein is Good
  • Test Weight is High
  • Maturity is Average
  • Height is Medium
  • Quality is Desirable

Disease Resistance

Three-Year Variety Data from 2017-2019

Variety>16″ Yield (BU/A)Test Weight (LBS/BU)Protein (%)Plant Height (Inches)
Stingray CL+10361.210.935
UI Castle CL+9961.710.936
UI Magic CL+10162.110.633
ORCF 10210061.610.637
Resilience CL+9861.710.634
LSD (0.05)20.20.21

>16″ Precip Zone (Eureka, Walla Walla), 2017–2019, (Dayton), 2017–2018, (Dusty, Mayview, St. John, Colton, Fairfield, Farmington, Pullman), 2018–2019, 22 loc/years


For seed inquiries please call Washington Genetics at 509-659-4020 or contact your local seed dealer.

U.S. Plant Variety Protection status for this cultivar is pending.

Signed grower agreements are required.

View WSU Variety Stingray CL+ in pdf format (pdf)

Intended Production Area >16″ Annual Precipitation

Map of Pacific Northwest indicating where this variety is favorable.