About Us | Help Videos | Contact Us | Subscriptions

Journal of Plant Registrations Abstract - CULTIVARS

Registration of ‘RWA 1758’ Russian Wheat Aphid-Resistant Spring Barley


This article in JPR

  1. Vol. 2 No. 1, p. 5-9
    Received: July 31, 2007

    * Corresponding author(s): phil.bregitzer@ars.usda.gov
Request Permissions

  1. P. Bregitzer *a,
  2. D. W. Mornhinwegb,
  3. D. E. Oberta and
  4. J. Windesc
  1. a USDA-ARS, National Small Grains Germplasm Research Facility, 1691 S. 2700 W., Aberdeen, ID 83210
    b USDA-ARS, 1301 N. Western St., Stillwater, OK 74075
    c Univ. of Idaho Research and Extension Center, 1693 S. 2700 W, Aberdeen, ID 83210


‘RWA 1758’ (Reg. No. CV-336; PI 648913) is a spring, Russian wheat aphid (Diuraphis noxia Mordvilko) (RWA)–resistant two-rowed barley (Hordeum vulgare L.) developed by the USDA-ARS. RWA 1758 was selected and released on the basis of competitive agronomic performance and resistance to damage caused by RWA feeding. RWA 1758 derives from a BC3F3:4 selection from the cross ‘Baronesse’*4/STARS 9577B. It was tested under the experimental designation 01ST1758. STARS 9577B is a six-rowed spring RWA-resistant germplasm line developed and released by the USDA-ARS. STARS 9577B is resistant to the five RWA biotypes known to be present in the United States. STARS 9577B was developed via selection from CIho 4165, a landrace originally collected in Afghanistan. The main component of the resistance is tolerance, conferred by two dominant genes with recessive epistasis.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © 2008. Crop Science Society of AmericaCrop Science Society of America