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Crop Science Abstract -

Genetics of Resistance to Phytophthora Rot in Soybean Cultivar PI 1714421


This article in CS

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

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



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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