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    Cowpea leaf width correlates with above ground biomass across diverse environments

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    Journal Article (2.366Mb)
    Date
    2022-03-21
    Author
    Digrado, A.
    Gonzalez‐Escobar, E.
    Owston, N.
    Page, R.
    Mohammed, S.B.
    Umar, M.L.
    Boukar, O.
    Ainsworth, E.A.
    Carmo‐Silva, E.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Cowpea (Vigna unguiculata [L.] Walp.) yields within the dry savannahs of Sub-Saharan Africa are low. Given the contribution of cowpea to food security in this region, it is essential that high-yielding varieties are developed to improve crop productivity in a sustainable manner. Identifying morphological or physiological traits that correlate with biomass could assist breeders with rapid screening of diverse germplasm. This study investigated 23 diverse Nigerian cowpea lines in an environmentally controlled greenhouse and 50 diverse lines from a Multiparent Advanced Generation Intercross (MAGIC) population in the field to identify easily measurable traits associated with high above ground biomass. Correlation analyses found that leaf traits were significantly and positively correlated with above ground biomass, and the leaf width of the youngest fully expanded leaf was the best indicator of biomass yield. Analysis of variance identified significant differences among the genotypes for all measured traits, indicating that there is genetic variation among these varieties and opportunity for selection. These results from the greenhouse and the field indicate that the leaf width of the youngest fully expanded leaf can be used to rapidly select cowpea lines with high biomass production potential.
    https://dx.doi.org/10.1002/leg3.144
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7985
    IITA Authors ORCID
    Ousmane Boukarhttps://orcid.org/0000-0003-0234-4264
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1002/leg3.144
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Cowpea; Food Security; Grain Legumes; Plant Breeding; Plant Production
    Agrovoc Terms
    Cowpeas; Biomass; Yields; Crop Production; Grain Legumes
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Legume Science
    Collections
    • Journal and Journal Articles4842
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