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This article in CS

  1. Vol. 15 No. 3, p. 335-337
     
    Received: June 29, 1974
    Published: May, 1975


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doi:10.2135/cropsci1975.0011183X001500030016x

Postulation of Genes for Stem Rust Resistance in the Entries of the Fourth International Winter Wheat Performance Nursery1

  1. D. V. McVey and
  2. A. P. Roelfs2

Abstract

Abstract

The presence of genes for resistance to stem rust (Puccinia graminis Pers. f. sp. tritici Eriks. & E. Henn.) in wheat (Triticum aestivum L. em Thell.) was detected in entries of the 4th International Winter Wheat Performance Nursery by use of 18 isolates of rust previously characterized for virulence on 12 genes.

Several varieties appeared to have one or two genes in common3. The test isolates detected no genes for resistance in ‘Blueboy,’ ‘Starke,’ ‘Jyva,’ and Vakka.’ Based on this procedure, Sr 9b, 9e, 10,11, 13, and Tt-1 were not detected in any of the entries. While some varieties possessed other genes for stem rust resistance than those studied.

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