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Title: Registration of 'Stoneham' spring feed barley resistant to Russian wheat aphid

Author
item Mornhinweg, Dolores - Do
item Bregitzer, Paul
item PORTER, DAVID - Oklahoma State University
item PEAIRS, F - Colorado State University
item BALTENSPERGER, D - Texas A&M University
item HEIN, G - University Of Nebraska
item RANDOLPH, T - Colorado State University
item KOCH, M - Colorado State University
item WALKER, T - Colorado State University

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/20/2011
Publication Date: 1/2/2012
Citation: Mornhinweg, D.W., Bregitzer, P.P., Porter, D.R., Peairs, F.R., Baltensperger, D.D., Hein, G.L., Randolph, T.A., Koch, M., Walker, T. 2012. Registration of 'Stoneham' spring feed barley resistant to Russian wheat aphid. Journal of Plant Registrations. 6(1):1-5.

Interpretive Summary: 'Stoneham' (REG. No.; PI 641940) a Russian wheat aphid (RWA, Diuraphis noxia Kurdjumov)-resistant, spring, two-rowed, feed barley (Hordeum vulgare) tested as 97BX 27-132, was developed and released by the USDA-ARS, Stillwater, OK and Aberdeen, ID; Colorado State University; and the University of Nebraska. Introduction of RWA to the US effectively eliminated spring barley, the preferred alternate crop, in winter wheat rotations, in eastern Colorado and western Nebraska. 'Otis', a spring barley, well adapted to the high dry plains, is susceptible to RWA. Stoneham, with RWA resistance from STARS 9577B transferred to Otis, outperforms Otis in this marginal production area. A total of eight RWA biotypes (RWA1 – RWA8) have been identified in the high plains based on winter wheat differentials. Both Stoneham and Sidney, the first RWA-resistant drought hardy cultivar to be released, are resistant to all eight RWA biotypes. RWA resistance is under different genetic control in Stoneham and Sidney. The release of cultivars with different sources of resistance is an attempt to increase the durability of resistance in spring barley against future biotype changes.

Technical Abstract: 'Stoneham' (REG. No.; PI 641940) a Russian wheat aphid (RWA, Diuraphis noxia Kurdjumov)-resistant, spring, two-rowed, feed barley (Hordeum vulgare) tested as 97BX 27-132, was developed and released by the USDA-ARS, Stillwater, OK and Aberdeen, ID; Colorado State University; and the University of Nebraska. Introduction of RWA to the US effectively eliminated spring barley, the preferred alternate crop, in winter wheat rotations, in eastern Colorado and western Nebraska. 'Otis', a spring barley, well adapted to the high dry plains, is susceptible to RWA. Stoneham, with RWA resistance from STARS 9577B transferred to Otis, outperforms Otis in this marginal production area. A total of eight RWA biotypes (RWA1 – RWA8) have been identified in the high plains based on winter wheat differentials. Both Stoneham and Sidney, the first RWA-resistant drought hardy cultivar to be released, are resistant to all eight RWA biotypes. RWA resistance is under different genetic control in Stoneham and Sidney. The release of cultivars with different sources of resistance is an attempt to increase the durability of resistance in spring barley against future biotype changes.