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    Spatial multivariate cluster analysis for defining target population of environments in west Africa for yam breeding

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    U19ArtAlabiSpatialInthomNodev.pdf (2.588Mb)
    Date
    2019-07
    Author
    Alabi, T.R.
    Adebola, P.O.
    Asfaw, A.
    Koeyer, D. de
    López Montes, A.
    Asiedu, Robert
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Yam (Dioscorea spp.) is a major staple crop with high agricultural and cultural significance for over 300 million people in West Africa. Despite its importance, productivity is miserably low. A better understanding of the environmental context in the region is essential to unlock the crop’s potential for food security and wealth creation. The article aims to characterize the production environments into homologous mega-environments, having operational significance for breeding research. Principal component analysis (PCA) was performed separately on environmental data related to climate, soil, topography, and vegetation. Significant PCA layers were used in spatial multivariate cluster analysis. Seven clusters were identified for West Africa; four were country-specific; the rest were region-wide in extent. Clustering results are valuable inputs to optimize yam varietal selection and testing within and across the countries in West Africa. The impact of breeding research on poverty reduction and problems of market accessibility in yam production zones were highlighted.
    http://dx.doi.org/10.4018/ijagr.2019070104
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4648
    Non-IITA Authors ORCID
    Patrick Adebolahttps://orcid.org/0000-0002-5155-6194
    Asrat Asfawhttps://orcid.org/0000-0002-4859-0631
    David De Koeyerhttps://orcid.org/0000-0001-8064-6538
    Antonio Jose Lopez-Monteshttps://orcid.org/0000-0001-5801-2475
    Robert Asieduhttps://orcid.org/0000-0001-8943-2376
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.4018/ijagr.2019070104
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Plant Breeding; Yam
    Agrovoc Terms
    Dioscorea; Yams; Environment
    Regions
    Africa; West Africa
    Countries
    Benin; Cote D'Ivoire; Ghana; Nigeria
    Journals
    International Journal of Applied Geospatial Research
    Collections
    • Journal and Journal Articles4842
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