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    Analysis of phenotypic stability in 25 cowpea genotypes across six environments

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    S19ArtNgalamuAnalysisInthomDev.pdf (240.7Kb)
    Date
    2019-09-23
    Author
    Ngalamu, T.
    Meseka, S.
    Ifie, B.E.
    Ofori, K.
    Eleblu, J.S.Y.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Twenty-five cowpea (Vigna unguiculata L) genotypes were evaluated across six contrasting environments for phenotypic yield stability. Combined analysis of variance revealed significant differences among the genotypes and the main effects. A1B×D, BC×M, L1B×M, A1B×M, and BA×I were the best performing and stable genotypes. The non-parametric analysis showed that genotype IT93K-503-1 had the highest yield and BC×D had the lowest yield. Shukla stability analysis revealed Beledi A and Dan lla as the most stable across test environments and genotypes A1B×D, BC×M and BA×I were good performers. The coefficient of variability graphical approach showed that genotypes BC×I, A1B×M, A1B×D, Dan lla, TA×M, Mouride, L1B×I, BC×M and L1B×D were high yielding. This implies they would do well across the testing sites. However, genotype IT93K-503-1 should be promoted for cultivation in drought-prone environments.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6548
    Non-IITA Authors ORCID
    SILVESTRO MESEKAhttps://orcid.org/0000-0003-1004-2450
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Agronomy; Cowpea; Genetic Improvement; Grain Legumes; Plant Breeding; Plant Genetic Resources
    Agrovoc Terms
    Adaptability; Cowpeas; Environment; Genotypes; Stability; Yields
    Journals
    Indian Journal of Agricultural Research
    Collections
    • Journal and Journal Articles4835
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