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    Yield improvement in maize for tolerance to low soil nitrogen

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    S18ArtAjalaYieldInthomDev.pdf (151.8Kb)
    Date
    2018-03-08
    Author
    Ajala, S.
    Olaniyan, A.B.
    Olayiwola, M.O.
    Job, A.O.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Low soil nitrogen limits maize (Zea mays L.) production in the West and Central African subregion. Levels of residual genetic variability were determined in two low‐N populations using selfed progeny evaluations, and results obtained indicate large genotypic and phenotypic variances for grain yield under both low‐ and high‐N environments for effective selection, while heritability estimates were generally low. Ear aspect and stay green were the most important traits contributing to grain yield for both populations. Selection reduced days to flowering, ASI and ear aspect, but increased plant height and yield. Yield gains of more than 25% occurred for the two populations under both low and high N with the most significant change of 42% occurring in one population under high N.
    https://doi.org/10.1111/pbr.12568
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3434
    Non-IITA Authors ORCID
    Sam AJALAhttps://orcid.org/0000-0002-8955-408X
    Digital Object Identifier (DOI)
    https://doi.org/10.1111/pbr.12568
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Maize; Plant Breeding; Soil Fertility
    Agrovoc Terms
    Maize; Statistical Analysis; Soil Nitrogen; Genetic Variability; Yield
    Regions
    Africa; West And Central Africa
    Countries
    Nigeria
    Journals
    Plant Breeding
    Collections
    • Journal and Journal Articles4835
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