Skip to main content
ARS Home » Pacific West Area » Pullman, Washington » WHGQ » Research » Publications at this Location » Publication #421830
Research Project: Wheat and Barley Adaptation to a Changing Climate - Discovery of Genetic and Physiological Processes for Improved Crop Productivity and Quality

Location: Wheat Health, Genetics, and Quality Research

Title: Registration of ‘Piranha CL+’ Soft White Winter Wheat

Author
item CARTER, ARRON - Washington State University
item BALOW, KERRY - Washington State University
item SHELTON, GARY - Washington State University
item BURKE, ADRIENNE - Washington State University
item HAGEMEYER, KYALI - Washington State University
item STOWE, A - Washington State University
item WETZEL, H - Washington State University
item WORAPONG, J - University Of Idaho
item NEELY, CLARK - Washington State University
item Steber, Camille
item Chen, Xianming
item Kiszonas, Alecia

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 3/20/2025
Publication Date: N/A
Citation: N/A

Interpretive Summary: This paper is about the release of a soft white winter wheat variety called 'Piranha CL+'. Soft white wheat is used to bake cakes and cookies. This cultivar has genetic resistance to the herbicide Beyond for use in the Clearfield Production system for controlling weeds. USDA scientists Steber and Kiszonas contributed to selection for good end-use quality in this line. USDA scientist Chen contributed to selection for genetic resistance to the disease called stripe rust. The variety has high grain yield and good resistance to the disease called snow mold.

Technical Abstract: Soft white winter (SWW) wheat (Triticum aestivum L.) is commonly grown in many production regions in Washington. In many of these production areas, winter annual weeds have become prevalent in the fields. With only a few herbicide choices available, growers have used the Clearfield® Production System technology as a tool to control grassy weeds. The use of the group 2 (Amino Acid Inhibitors/ALS) Beyond® herbicide (imazamox) tolerant wheat has allowed growers effective weed control options but has also led to herbicide residual building up in the soil profile. The objective of this research was to develop a two-gene Beyond® tolerant SWW cultivar with improved resistance to the stripe rust pathogen (caused by Puccinia striiformis Westend. f. sp. tritici Erikss.), tolerance to snow mold, improved end-use quality, and can maintain high grain yield across production regions and years. ‘Piranha CL+’ (Reg. No. CV-xxxx, PI xxxxxx) is a SWW wheat cultivar developed and released in March 2020 by the Agricultural Research Center of Washington State University. Piranha CL+ was tested under the experimental designations MAS11295-1-1-0-2 and WA8305 CL+, assigned through progressive generations of advancement. Piranha CL+ is a two-gene Beyond® tolerant semi-dwarf cultivar broadly adapted across the wheat production regions of Washington. Piranha CL+ has improved high-temperature adult-plant resistance to the stripe rust pathogen over the most commonly grown Clearfield® cultivars, is tolerant to snow mold, has intermediate plant height with mid-season maturity, and has high grain volume weight. This cultivar has maintained high grain yield across multiple years of testing in Washington. The end-use quality properties of Piranha CL+ meet expectations of both domestic and export market standards.