Sorghum grain hardness and its relationship to mold susceptibility and mold resistance

    Jambunathan, R and Kherdekar, M S and Stenhouse, J W (1992) Sorghum grain hardness and its relationship to mold susceptibility and mold resistance. Journal of Agriculture and Food Chemistry, 40 (8). pp. 1403-1408. ISSN 0021-8561

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    Abstract

    Sorghum [Sorghum bicolor (L.) Moench] cultivars exhibiting contrasting reactions to the gram mold complex were grown at Patancheru, India, in one postrainy (1988-1989) and two consecutive rainy seasons (1989 and 1990). Sorghum grain hardness was measured by four methods: grinding time required to obtain a fixed volume of flour from grains in a Stenvert hardness tester, force required to break the grains using Kiya and Instron food testers, and density grading in sodium nitrate solution measured as percentage of floating grains. Ergosterol concentration was determined in grains to assess the extent of mold damage. The Stenvert method was convenient and rapid and was significantly correlated with the other three methods but negatively and significantly correlated with the ergosterol concentration. Grains grown in the postrainy season exhibited higher hardness than those grown in the rainy seasons. Mold-resistant cultivars exhibited significantly greater hardness than mold-susceptible cultivars. Ergosterol concentration indicating the extent of mold attack was negatively and significantly( P < 0.01) correlated with Stenvert hardness values in mold-resistant phenotypically white sorghum grains (without testa) in both the rainy seasons.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Sorghum
    Depositing User: Mr Charan Sai Ch
    Date Deposited: 22 Oct 2011 08:04
    Last Modified: 22 Oct 2011 08:04
    URI: http://oar.icrisat.org/id/eprint/3104
    Official URL: http://dx.doi.org/10.1021/jf00020a023
    Projects: UNSPECIFIED
    Funders: UNSPECIFIED
    Acknowledgement: UNSPECIFIED
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