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    Phenotypic characterization of Amaro coffee (Coffea arabica L.) local accessions using multi-variate techniques at Awada, southern Ethiopia

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    Journal Article (544.1Kb)
    Date
    2022
    Author
    Alemayehu, D.
    Garedew, W.
    Abebe, A.T.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    As a country of origin of coffee, Ethiopia is endowed with an immense diversity of the crop in its diverse coffee-growing agro-ecologies. Amaro Kelo is one of the major coffee production agro-ecologies in Ethiopia, where the genetic diversity of its landrace coffee germplasm was not properly characterized previously. The study aimed to characterize 64 Amaro Kelo local coffee accessions to understand the potential of the accessions for utilization in future coffee genetic improvement efforts. The experiment was laid out in an 8 × 8 simple lattice design with two replications at Awada Agricultural Research Sub-Center. Data were collected on 19 quantitative and 10 qualitative traits, and subjected to multivariate analyses, i.e. cluster and principal component analyses. The cluster analysis identified five clusters based on the quantitative characters, and the distances between most of the clusters were highly significant at P < 0.01. Principal component analysis revealed the first six principal components with Eigenvalues greater than one accounted for 77.7% of the total variation. The first two principal components with respective contributions of 23.32 and 18.85% cumulatively accounted for 42.2% of the total variation in the accessions. In addition, high values of Shannon-diversity index were found for the qualitative traits: branching habit, growth habit, fruit shape, overall appearance and stem habit. In general, the multivariate analyses confirmed the presence of high variation among the studied Amaro-Kelo coffee accessions that might serve as an important genetic resource for future coffee genetic improvement or conservation efforts.
    https://dx.doi.org/10.1017/s1479262122000119
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/7488
    IITA Authors ORCID
    Tesfaye Getachew Mengistuhttps://orcid.org/0000-0002-0544-6314
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1017/s1479262122000119
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Plant Breeding; Plant Genetic Resources; Plant Production
    Agrovoc Terms
    Coffee; Phenotypic; Genetic Diversity; Ethiopia
    Regions
    Africa; East Africa
    Countries
    Ethiopia
    Hubs
    Headquarters and Western Africa Hub
    Journals
    Plant Genetic Resources: Characterization and Utilization
    Collections
    • Journal and Journal Articles4501
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