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    Development in cowpea (Vigna unguiculata); l: the influence of temperature on seed germination and emergence

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    Date
    1996
    Author
    Craufurd, P.Q.
    Ellis, R.H.
    Summerfield, R.J.
    Menin, L.
    Type
    Journal Article
    Review Status
    Peer Review
    Metadata
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    Abstract/Description
    The base (Tb), optimum (To) and ceiling (Tce) temperature for 50% seed germination and seedling emergence, and the thermal time at sub-optimal temperatures (θ1), were examined in experiments with a range of cowpea genotypes from different habitats and latitudes. There was substantial genotypic variation in seed germination for Tb and To, but not for Tce. There was no evidence that genotypes from semi-arid habitats had higher values of To or Tce, but estimates of Tb for seed germination were related to latitude and were highest in genotypes originating from close to the equator. The significance of these responses as a component of developmental plasticity in relation to the adaptation of cowpeas is discussed.
    https://doi.org/10.1017/S0014479700025801
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6196
    Digital Object Identifier (DOI)
    https://doi.org/10.1017/S0014479700025801
    IITA Subjects
    Cowpea; Genetic Improvement; Agronomy
    Agrovoc Terms
    Cowpeas; Seed Germination; Seeds; Genotypes; Habitats
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    • Journal and Journal Articles4835
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