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    Correlation and path coefficient analysis of top-cross and three-way cross hybrid maize populations

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    U17ArtSesayCorrelationNothomDev.pdf (380.9Kb)
    Date
    2017-03-09
    Author
    Sesay, S.
    Ojo, D.K.
    Ariyo, O.J.
    Meseka, S.K.
    Fayeun, L.S.
    Omikunle, A.O.
    Oyetunde, A.O.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Grain yield is a complex quantitative trait that depends on a number of other traits for selection. This study was carried out to reveal the pattern of association with and contribution of traits to grain yield in two maize populations evaluated in three agro-ecological zones of South-Western Nigeria during the 2014 cropping season. The experiment consisted of 10 top-cross and 10 three-way cross maize hybrids, laid out in a randomised complete block design with three replications. Genotypic and phenotypic correlation coefficients and path co-efficient analyses were performed for each hybrid population across the three locations. Results showed significant (p≤0.05) differences between the two hybrid populations for all the traits mentioned except days to 50% anthesis, ear diameter and 100-grain weight. Field weight in both hybrid populations, number of kernel rows per cob, ear diameter and ear height in top-cross hybrids, as well as ear length and 100-grain weight in the three-way cross hybrids were directly correlated with grain yield. The link between direct and indirect effects on grain yield depends on hybrid population, although some traits showed similar direct effects in both hybrid populations. These traits can be used as the main criteria for grain yield improvement in the respective hybrid populations.
    https://dx.doi.org/10.5897/ajar2016.11997
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1648
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.5897/ajar2016.11997
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Maize; Plant Breeding
    Agrovoc Terms
    Maize; Cropping; Correlation; Path Coefficient Analysis; Hybrid Populations; Yield
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    African Journal of Agricultural Research
    Collections
    • Journal and Journal Articles4835
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