Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 11:33-35 (1971)
© 1971 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Yield Component Compensation — Alternative Interpretations1

M. W. Adams and J. E. Grafius2

The patterns of response to selection in two barley populations (Hordeum vulgare L.) for yield and its components were interpreted by Rasmusson and Cannell as indicative of genetic linkage. We propose an alternative explanation based on an oscillatory response of components due to the sequential nature of components development and a limitation of environmental resources. Use is made of a recurslon equation which under specified conditions leads to the expectation of oscillatory behavior of components. The data of Rasmusson and Cannell conform to the oscillatory hypothesis.

Key Words: Oscillation of components • Recursion formula • Barley

1 Contribution of the Crop and Soil Sciences Department, Michigan State University, East Lansing. Journal Article No. 5084 of the Michigan Agricultural Experiment Station.

2 Professors, Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan.

Received for publication May 20, 1970.




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