Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 9:121-124 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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A Dynamic Population of Weedy Rye1

C. A. Suneson, K. O. Rachie and G. S. Khush2

Natural establishment and spread of a diverse and heterotic weedy rye population in California's northern mountain counties is reported. The dramatic take-over by this interspecific derived population can be ascribed to a favorable climate and soil, and an unusual opportunity for continued introgression with diverse cultivars of rye.

We encourage further study of this example of genetic introgression under conditions of natural selection. Information may be applicable to rye breeding, new species (Triticale) production, and population genetics. Its potential as a weed must also be considered.

Key Words: Genetic introgression • Evolutionary breeding • Germplasm release

1 Contribution from the Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture and the Departments of Agronomy and Vegetable Crops, University of California, Davis.

2 Research Agronomist, Crops Research Division, ARS, USDA; Geneticist, The Rockefeller Foundation, New Delhi and postdoctoral Associate in Agronomy, U.C. at Davis 1966–67; and Plant Breeder, (formerly, Asst. Research Geneticist, Dept. of Vegetable Crops, U.C. at Davis) I.R.R.I., Manila, P.I.

Received for publication April 1, 1968.




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Environmental Quality		 The Plant Genome
Copyright © 1969 by the Crop Science Society of America.