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    Heritability studies of some cassava genotypes

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    Date
    2002
    Author
    Asante, K.
    Dixon, Alfred G.O.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Three traits, namely root number (RTNO), root weight(RTWT) and fresh yield (FYLD) of some cassava genotypes wrer scored and analysed for heritability. The genotypes differed significantly for each of the tree traits. Generally heritability per replicate was above 50% indicating that the additive portion of the genetic variance might be high. Heritability per plot ranged between 69% and 86% which might indicate that non additive effect of the genotypic variance variance might be small. Phenotypic and genotypic variance differed significantly, which reflects an environmental influence on the genotypes. By assuming a 5% differential selection of the top population, an advance of 46.5%, 41.5%and 33.5% can be arrived at for RTNO, RTWT and FYLD respectively, over their population means. Correlation between the three traits was highly significant and positive.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5400
    IITA Subjects
    Cassava; Agronomy; Crop Husbandry
    Agrovoc Terms
    Tuber; Cassava; Breeding; Genotypes; Heritability
    Regions
    Africa; West Africa
    Countries
    Ghana; Nigeria
    Collections
    • Journal and Journal Articles4835
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