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Evolution of the gene rotation concept for rice blast control : A compilation of 10 research papers

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  • Evolution of the gene rotation concept for rice blast control
  • International Rice Research Institute
  • United States Agency for International Development


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Title Evolution of the gene rotation concept for rice blast control
Similar Titles
Sub Title

A compilation of 10 research papers

Material Type Reports
Author(English)

International Rice Research Institute

Publisher

[Washington, D.C.]:United States Agency for International Development

Date 1982
Series Title; No Reference Document
Pages 132
Subject Country South Korea(Asia and Pacific)
Language English
File Type Link
Subject Industry and Technology < Agriculture
Holding United States Agency for International Development

Abstract

Despite extensive control efforts, blast - caused by the fungus Pyricularia oryzae - remains the world's most important disease of rice. Presented here are ten research papers which document and trace the evolution over a 10-year period (1972-82) of an effective new control method, the rotation of specific genes for resistance. The first three studies (1972-3) - concerning fusarium wilt in tomatoes - delineate the origin of the concept of plant disease control through gene rotation and show conclusively that monogenic resistance is superior to horizontal resistance in the field and that the "vertifolia effect" (the loss of tolerance to a pathogen by a plant variety that was developed with specific monogenic resistance to it) is invalid. Following a 1974 paper which validated these findings are papers dealing, respectively, with the integration of varietal development with crop production and crop disease monitoring programs, the use of F1 hybrid varieties as sources of resistance to new diseases and races, the concept of rotating specific monogenes to manage the evolution of pathogen races, and the theoretical aspects of controlling rice blast through monogenic resistance. The final paper describes the establishment in Korea in 1979 of a national-level gene rotation program for rice.