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    Combining ability for yield and plant phenology in plantain derived populations

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    Date
    1998
    Author
    Tenkouano, T.
    Ortiz, R.
    Vuylsteke, D.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Genetic enhancement of Musa spp. has aimed at producing hybrids with high yield, short stature, fast crop cycling, and disease resistance through interspecific and interploidy crosses. Progeny testing for parental selection has seldom been carried out in Musa and little is known on combining ability and heterosis in this species. A 5 _ 5 factorial mating design was used to estimate components of phenotypic variance in 4x-2x hybrid populations and to determine the combining ability of their progenitors for yield and associated traits. General combining ability was much greater than specific combining ability for these traits, and, therefore, only little recombinative heterosis could be expected upon crossing. Thus, the 4x-2x breeding scheme should aim to accumulate favourable alleles in 4x and 2x clones through recurrent selection. Such clones could be used per se or in crosses aimed at restoring the seedlessness character in the progeny due to female sterility in a triploid background.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5661
    IITA Subjects
    Banana; Plantain
    Agrovoc Terms
    Musa; Breeding; Parents; Selection; Breeding Value; Bananas; Plantains
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4836
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