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ARS Home » Pacific West Area » Pullman, Washington » WHGQ » Research » Publications at this Location » Publication #329448
Title: Registration of ‘Dayn’ hard white spring wheat

Author
item KIDWELL, K. - Washington State University
item KUEHNER, J - Washington State University
item MARSHALL, J - University Of Idaho
item SHELTON, G - Washington State University
item DEMACON, V - Washington State University
item RYNEARSON, S - Washington State University
item Chen, Xianming
item GUY, S - Washington State University
item Engle, Douglas
item BAIK, B - Washington State University
item Morris, Craig
item PUMPHREY, M - Washington State University

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/4/2017
Publication Date: 4/26/2018
Citation: Kidwell, K.K., Kuehner, J.S., Marshall, J., Shelton, G.B., Demacon, V.L., Rynearson, S., Chen, X., Guy, S.O., Engle, D.A., Baik, B.K., Morris, C.F., Pumphrey, M.O. 2018. Registration of ‘Dayn’ hard white spring wheat. Journal of Plant Registrations. 12(2):222-227.

Interpretive Summary: Hard white spring wheat production in the western United States is concentrated in regions of California, southern Idaho, and Washington, where resistance to stripe rust, high yield potential, minimal lodging, and desirable milling and baking qualities are preferred traits. Our objective was to develop a broadly adapted hard white spring wheat cultivar with a high level of resistance to stripe rust. 'Dayn' hard white spring wheat was developed by the Washington State University Agricultural Research Center, and released for production in the Pacific Northwest. Dayn was derived from a cross by a modified-pedigree bulk-breeding method. Dayn was tested at sites across Washington and Idaho under the designations WA8123 and Dayn from 2010 to 2015. Dayn is a medium maturity, semidwarf cultivar broadly adapted to spring wheat production areas of the Pacific Northwest, with excellent yield potential in high moisture rain-fed and irrigated production systems. Dayn was released based on a combination of superior grain yield potential compared to contemporary commercial varieties, a high level of adult plant resistance to stripe rust, and desirable milling and baking characteristics

Technical Abstract: Hard white spring wheat (Triticum aestivum L.) production in the western United States is concentrated in regions of California, southern Idaho, and Washington, where resistance to stripe rust (caused by Puccinia striiformis Westend. f. sp. tritici Erikss.), high yield potential, minimal lodging, and desirable milling and baking qualities are preferred traits. Our objective was to develop a broadly adapted hard white spring wheat cultivar with a high level of resistance to stripe rust. 'Dayn' (Reg. No. CV-XXX, PI 666941) hard white spring wheat was developed by the Washington State University Agricultural Research Center, and released for production in the Pacific Northwest. Dayn was derived from the cross 'UI Lochsa'//'Otis'*2/P9347A1-2 by a modified-pedigree bulk-breeding method. Dayn was tested at sites across Washington and Idaho under the designations WA8123 and Dayn from 2010 to 2015. Dayn is a medium maturity, semidwarf cultivar broadly adapted to spring wheat production areas of the Pacific Northwest, with excellent yield potential in high moisture rain-fed and irrigated production systems. Dayn was released based on a combination of superior grain yield potential compared to contemporary commercial varieties, a high level of adult plant resistance to stripe rust, and desirable milling and baking characteristics.