Letter | Published:

Significance of Differences between Variety Yields under Experimental and Farm Conditions

Naturevolume 207page1009 (1965) | Download Citation

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Abstract

PREVIOUS work has shown that if farm yields are plotted against experimental yields they lie along a curve which has a slope of 45 degrees at low values and is almost horizontal at high values1. This occurs because, in years favourabla to the crop, farm yields do not increase by the same proportion as experimental yields.

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References

  1. 1

    Davidson, B. R., Nature, 194, 458 (1962).

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Affiliations

  1. Institute of Agriculture, University of Western Australia, Nedlands

    • B. R. DAVIDSON

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DOI

https://doi.org/10.1038/2071009a0

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