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This article in CS

  1. Vol. 21 No. 6, p. 873-875
     
    Received: Mar 20, 1981


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doi:10.2135/cropsci1981.0011183X002100060018x

Genetics of Resistance to Phytophthora Rot in Soybean Cultivar PI 1714421

  1. T. C. Kilen and
  2. B. L. Keeling2

Abstract

Abstract

The genetics of resistance to phytophthora rot (caused by Phytophthora megasperma Drechs. var. sojae Hildeb.) was studied in the soybean [Glycine max (L.) Merr.] cultivar PI 171442. PI 171442 is the donor of one of the genes for resistance in the cultivar ‘Tracy,’ and is part of a uniform set of soybean differentials used to identify races of the disease-inducing organism. The results indicate that the dominant gene found in PI 171442 occupies a locus different from Rps1 and Rps2, and that both PI 171442 and PI 86972-1 have the Rps3 gene for resistance.

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