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    Biplot analysis of line X tester data of maize (Zea mays L.) inbred lines under stress and nonstress environments

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    S19ArtBaduaprakuBiplotInthomDev.pdf (343.8Kb)
    Date
    2019
    Author
    Badu-Apraku, B.
    Akinwale, R.O.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    The GGE biplot tool has potential for determining combining ability effects, identifying distinct heterotic groups and efficient testers in a line × tester study. However, its use for such analysis has not been adequately explored. The objectives of this study were to (i) assess combining ability of extra-early maturing lines (80–85 days to physiological maturity) and testers for grain yield (ii) classify lines into heterotic groups and (iii) identify most efficient testers using GGE biplot. Sixty-three lines crossed to four testers were evaluated under Strga-infested, drought and nonstress environments for 2 years in Nigeria. Results of GGE biplot analyses of combining ability and heterotic patterns of yield of lines, grouping and identification of testers were close to those of the conventional line × tester method. Testers TZEEI 13, TZEEI 21 and TZEEI 29 were highly efficient in grouping lines under stress environments while testers TZEEI 21 and TZEEI 29 were best under nonstress environments. The GGE biplot identified tester TZEEI 13, TZEEI 21 and TZEEI 29 as most efficient across stress environments and TZEEI 21 and TZEEI 29 across nonstress environments.
    https://dx.doi.org/10.1556/0806.47.2019.25
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6541
    Non-IITA Authors ORCID
    BAFFOUR BADU-APRAKUhttps://orcid.org/0000-0003-0113-5487
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1556/0806.47.2019.25
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Disease Control; Maize; Plant Breeding; Plant Diseases; Plant Production
    Agrovoc Terms
    Combining Ability; Drought; Drought Stress; Striga Hermonthica; Maize; Nigeria
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Cereal Research Communications
    Collections
    • Journal and Journal Articles4835
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