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The analysis of yield-density relationships in binary mixtures using inverse polynomials

Published online by Cambridge University Press:  27 March 2009

A. J. Wright
A. J. Wright
Affiliation:
Plant Breeding Institute, Cambridge
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Summary

The reciprocal relationship commonly used in the analysis of plant yield-density relationships in monoculture is extended to allow a similar treatment of binary mixtures, using the model:

w–1a = Aa × Baapa × Babpb

where wa is the plant weight of component a in mixture with component b, and pa and pb are the plant densities of a and b respectively. The model gives a good fit to fresh weights taken from a glasshouse experiment involving monocultures and mixtures of red clover (T. pratense L.) and Italian ryegrass (L. multiflorum L.) in different proportions, all grown at a range of plant densities. The interpretive and predictive uses of the model are discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 96 , Issue 3 , June 1981 , pp. 561 - 567
Copyright
Copyright © Cambridge University Press 1981

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References

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