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A comparison of fungicides for the control of mildew on spring barley

Published online by Cambridge University Press:  27 March 2009

S. J. Wale
Affiliation:
North of Scotland Colleges of Agriculture, Aberdeen
E. A. Hunter
Affiliation:
Agricultural and Food Research Council Unit of Statistics, University of Edinburgh, Edinburgh

Summary

A series of 24 standardized, replicated field trials comparing 47 fungicidal treatments for the control of spring barley mildew have been analysed. The joint analysis has enabled stronger conclusions to be drawn about the relative efficacy of treatments than examination of individual trials. To increase sensitivity the trials were divided into those with high or low mildew pressure. Under high mildew pressure, the treatments which gave the greatest control of mildew also gave the highest yields. However, within any given treatment the yield response appeared not to be closely related to the degree of mildew control achieved. It is concluded that effective fungicides may have a phytotonic effect as well as a mildew control effect.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1985

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References

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