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Comparisons of the Yields of Four Potato Varieties in Trials and in Agriculture

Published online by Cambridge University Press:  03 October 2008

N. W. Simmonds
N. W. Simmonds
Affiliation:
Edinburgh School of Agriculture, West Mains Road, Edinburgh, EH9 3JG, Scotland
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Summary

The yields of four potato varieties (two old and two new) in trials and in agriculture were compared. The six possible paired comparisons of means and of variety-on-variety regressions showed genotype–environment interactions. Trials and agricultural data agreed rather poorly as to both means and regressions, suggesting that further studies are desirable, in diverse crops, of the ability of trials to predict agricultural yields.

Type
Research Article
Information
Experimental Agriculture , Volume 16 , Issue 4 , October 1980 , pp. 393 - 398
Copyright
Copyright © Cambridge University Press 1980

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