Resistance to race 1 of Kabatiella caulivora in subterranean clover (Trifolium subterraneum L.) cultivars and breeding lines

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    Abstract

    Twenty-eight cultivars and 106 F-6-derived breeding lines of subterranean clover ( Trifolium subterraneum) were screened in the field for their response to clover scorch disease caused by race 1 of Kabatiella caulivora. Eleven of the cultivars, including Denmark and Goulburn, were classified as resistant. Breeding lines with Denmark parentage had 55% of progeny with resistance, while those of Goulburn had only 19% of resistant progeny, suggesting different modes of inheritance. Selection for resistance to race 2 of K. caulivora in the F-4 generation markedly increased the probability of selecting F-6-derived lines with resistance to race 1, suggesting linkage between genes for resistance to both races.
    Original languageEnglish
    Pages (from-to)561-566
    Journal Australian Journal of Agricultural Research
    Volume59
    DOIs
    Publication statusPublished - 2008

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