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Evaluation of Soybean Differentials for Their Interaction with Phytophthora sojae

A. E. Dorrance, H. Jia, and T. S. Abney

March 2004

Research

The objective of this study was to compare the consistency of racial classification when three different sets of soybean differentials were challenged with a common set of five races of P. sojae from Ohio and Indiana. A standardized set of soybean differentials, corresponding to different maturity groups, for thirteen of the fourteen Rps genes is recommended.

doi:10.1094/PHP-2004-0309-01-RS

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