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    Genetic diversity among East African highland bananas for female fertility

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    U05Art SsebulibaGeneticNothomDev.pdf (745.1Kb)
    Date
    2005
    Author
    Ssebuliba, R.N.
    Rubaihayo, P.R.
    Tenkouano, A.
    Makumbi, Dan
    Talengera, D.
    Magambo, M.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    There are 84 distinct cultivars of highland bananas (Musa spp.) in Uganda, grouped in five clone sets and it is not known which among these are female fertile. The objective of the study reported herein was to identify female fertile highland bananas that can be used in a cross breeding program and to determine the influence of pistil morphological traits on seed set. Seventy eight cultivars were screened for female fertility using pollen from ‘Calcutta 4\' and thirty-three cultivars representing the major variability of highland bananas were selected for studying pistil morphological traits to establish their relationship with seed yield. The clone sets and cultivars were highly significantly (P<0.0001) different in seed set rates but between-clone effects were higher than within-clone effects. Number of seeds was significantly negatively correlated with style length, ovary length and diameter of the style base. Path analysis indicated a high residual, suggesting that the traits analysed had little influence on female fertility. Nevertheless, style length was the most important trait in determining seed set because it had the strongest direct effect. Abnormalities in pistil morphological traits render cultivars female sterile.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3184
    Agrovoc Terms
    Highland Bananas; Musa Spp; Seed Set; Pistil Morphological Traits; Female Fertile; Clone Set; Cross Breeding Program
    Regions
    Africa; East Africa; Central Africa
    Countries
    Uganda; Cameroon
    Collections
    • Journal and Journal Articles4835
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