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    Host response to black sigatoka in Musa germplasm of different ages under natural inoculation conditions

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    Date
    1997
    Author
    Mobambo, K.N.
    Pasberg-Gauhl, C.
    Gauhl, F.
    Zuofa, K.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    The development of an early evaluation method for host response of different Musa clones to black sigatoka was investigated under natural inoculation conditions in southeastern Nigeria. Two months old tissue-culture-derived plants of three plantain hybrids and parents of the hybrids were exposed to the natural inoculum of Mycosphaerella fijiensis in a field planted with a susceptible plantain cultivar. The response to M. fijiensis was evaluated on these young plants and on the same clones of mature, field-established plants. Young plants expressed similar resistance responses as mature plants and allowed an earlier evaluation of host-plant response to M. fijiensis. The male diploid banana parent, ‘Calcutta 4', was highly resistant to black sigatoka. The three hybrids displayed partial resistance before flowering while the female parent, a triploid plantain, was susceptible. Disease responses of both mature and young plants ranked in the same order and were highly correlated (P = 0.01). Young-plant response to black sigatoka in Musa germplasm was shown to be a reliable indicator of mature-plant response and a quick means of disease reaction assessment. This could accelerate progress made by breeding programs when producing new black sigatoka-resistant germplasm.
    https://doi.org/10.1016/S0261-2194(96)00112-3
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5038
    Digital Object Identifier (DOI)
    https://doi.org/10.1016/S0261-2194(96)00112-3
    IITA Subjects
    Plant Diseases; Disease Control
    Agrovoc Terms
    Musa; Disease Resistance; Mycosphaerella Fijiensis
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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