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    Combining ability for grain yield, agronomic traits and striga hermonthica resistance of yellow endosperm maize

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    Journal Article (600.0Kb)
    Date
    2018
    Author
    Sangaré, S.
    Menkir, A.
    Ofori, K.
    Gracen, V.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Maize production is constrained by Striga hermonthica in Mali leading to high yield losses. Breeding resistant hybrid maize is a promising alternative for increasing farmers’ income. The objective of this study was to evaluate the response of test crosses to Striga hermonthica and identify high yielding and adopted hybrid. Forty-five F1 hybrids and three checks were evaluated under Striga-infested and Striga-free conditions in Sanankoroba and Sotuba rainy season. Data collection was carried on grain yield, anthesis silking interval, plant aspect, plant height, days to 50% tasselling and silking, Striga damage ratings and Striga count at 8 and 10 weeks after planting. General combining ability (GCA) of line and Specific combining ability (SCA) of hybrids effects were significant for most traits under both conditions. GCA effects had greater proportion of variance than SCA effects suggesting additive gene effects controlling the inheritance of yield and Striga resistance. Parental lines TZISTR112, TZISTR1214, TZISTR1222, TZISTR1223, tester TZISTR1207 and TZISTR106 were the best combiner for grain yield under both conditions and they could be used in hybrid development.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6891
    IITA Authors ORCID
    Abebe Menkirhttps://orcid.org/0000-0002-5907-9177
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Maize; Plant Breeding; Plant Production
    Agrovoc Terms
    Maize; Striga Hermonthica; Breeding; Combining Ability; Yields; Agronomic Traits; Mali
    Regions
    Africa; West Africa
    Countries
    Mali
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Journal of Plant Genetics and Breeding
    Collections
    • Journal and Journal Articles4835
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