Impact of improved sorghum cultivars on genetic diversity and yield stability

    Deb, U K and Bantilan, M C S and Reddy, B V S and Bramel, P J and Rao, N K (2004) Impact of improved sorghum cultivars on genetic diversity and yield stability. In: Sorghum genetic enhancement: research process, dissemination and impacts. International Crops Research Institute for the Semi-Arid Tropics , Patancheru, Andhra Pradesh, India, pp. 225-234. ISBN 92-9066-470-3

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    Abstract

    The genetic diversity of a crop species is fundamental to its improvement and survival. Low levels of genetic diversity in cultivars increasingly render them vulnerable to unexpected pests and diseases, resulting in major production losses. History has been witness to numerous epidemics caused by low levels of nuclear and cytoplasmic genetic diversity. These include the blight that affected temperate potatoes in the northern hemisphere in the 1840s and the southern corn leaf blight epidemic of maize in the USA in 1970 (McIntyre et al. 1997).

    Item Type: Book Section
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Sorghum
    Depositing User: Library ICRISAT
    Date Deposited: 12 Dec 2011 05:13
    Last Modified: 18 Mar 2013 08:46
    URI: http://oar.icrisat.org/id/eprint/4812
    Acknowledgement: UNSPECIFIED
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