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Heritability of paraquat tolerance in Lolium perenne L.

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Summary

Paraquat tolerance has been studied in an experimental population of Lolium perenne. After applying various concentrations of the herbicide, eye assessments of damage were made, and yield responses recorded. There was a quantitative pattern of variation; heritability was studied by analyzing (a) variation within and between families of half-sibs, and (b) the regression of progeny on their female parent. Heritability values were mostly in the range 0.51 to 0.72. It is concluded that it would be possible to increase tolerance to paraquat by selection, and that selection on eye assessment would be almost as effective as selection on yield response.

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  1. Plant Breeding Station, Loughgall, Armagh, Northern Ireland

    J. S. Faulkner

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  1. J. S. Faulkner
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Faulkner, J.S. Heritability of paraquat tolerance in Lolium perenne L.. Euphytica 23, 281–288 (1974). https://doi.org/10.1007/BF00035869

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  • DOI: https://doi.org/10.1007/BF00035869

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