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A Competitive Ratio for Quantifying Competition Between Intercrops†

Published online by Cambridge University Press:  03 October 2008

R. W. Willey  and
M. R. Rao
R. W. Willey
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), ICRISAT Patancheru PO 502 324, AP, India
M. R. Rao
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), ICRISAT Patancheru PO 502 324, AP, India
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Summary

A simple competitive ratio (CR) is proposed as a measure of intercrop competition, to indicate the number of times by which one component crop is more competitive than the other. Intercropping data show that this CR term could be useful in (i) comparing the competitive ability of different crops, (ii) measuring competitive changes within a given combination, (iii) identifying which plant characters are associated with competitive ability, and (iv) determining what competitive balance between components is most likely to give maximum yield advantages.

Type
Research Article
Information
Experimental Agriculture , Volume 16 , Issue 2 , April 1980 , pp. 117 - 125
Copyright
Copyright © Cambridge University Press 1980

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References

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