Nature of Resistance to Phytophthora Blight in Pigeonpea—Breeding Implications

    Gupta, A K and Singh, I S and Reddy, M V and Bajpai, G C (1996) Nature of Resistance to Phytophthora Blight in Pigeonpea—Breeding Implications. International Chickpea Newsletter, 3. pp. 69-71. ISSN 0257-2508

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    Abstract

    Seedlings of parental, F1, F2 and backcross generations of 8 pigeon pea [Cajanus cajan] crosses (6 between susceptible and resistant genotypes, and 2 between susceptible parents) were screened against isolate P3 of Phytophthora drechsleri f.sp. cajani in a greenhouse trial. Estimates of genetic variance components, heterosis and inbreeding depression were calculated. Results indicated the monogenic dominant nature of resistance and the presence of some minor genes involved in resistance expression. Heritability estimates were generally high and environmental variance was low. Breeding schemes to fully utilize this durable source of dominant resistance (pd3) in pigeon pea are discussed.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Pigeonpea
    Depositing User: Library ICRISAT
    Date Deposited: 24 Oct 2011 13:47
    Last Modified: 24 Oct 2011 13:47
    URI: http://oar.icrisat.org/id/eprint/2913
    Official URL:
    Projects: UNSPECIFIED
    Funders: Council of Scientific and Industrial Research(India)
    Acknowledgement: UNSPECIFIED
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