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  • Assessment of genetic variability in bambara groundnut (Vigna subterrenea L. Verdc.) using morphological quantitative traits.

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    Author(s) : Shegro, A.Rensburg, W. S. J. vanAdebola, P. O.

    Author Affiliation : Agricultural Research Council-Vegetable and Ornamental Plant Institute, Private Bag X293, Pretoria 0001, South Africa.

    Author Email : agerrano@arc.agric.za

    Journal article : Academia Journal of Agricultural Research 2013 Vol.1 No.3 pp.045-051 ref.17

    Abstract : Bambara groundnut is one of the neglected and underutilized legumes in the African continent. It is a major source of protein and is grown commonly by resource poor farmers at subsistence level. In South Africasouth africaSubject Category: Geographic Entities
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    , the crop is used for food and the enhancement of soil fertility. Information on genetic variability among available local accessions of Bambara groundnut will increase the efficiency of the improvement programme in South Africa. Field experiments were conducted at the ARC-Roodeplaat Vegetable and Ornamental Plant Institute research farm in 2011-2012 cropping season to estimate the level of phenotypic variability among 20 Bambara groundnut accessions. The experiment was laid out in a randomised complete block design with three replications. Eighteen phenotypic markers were recorded. Analysis of variance for the phenotypic traits revealed that differences among accessions were highly significant for all traits. This indicated that quantitative morphological traits differed among the accessions studied. The results of the principal component analysis showed that the first 7 principal components contributed 83% of the variability among the accessions evaluated. Leaf area indexleaf area indexSubject Category: Properties
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    , pod mass and dry weight are highly associated with the first principal component, while estimated leaf area, actual leaf area, number of podspodsSubject Category: Anatomical and Morphological Structures
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    and fresh weight of Bambara groundnut contributed more to the second principal component. The genetic distances of the accessions varied from 0.86 to 1.79. These phenotypic markers can therefore serve as useful tools that can be exploited for use in future breeding efforts.

    ISSN : 2315-7739

    URL : http://academiapublishing.org/ajar/pd...

    Record Number : 20143001865

    Publisher : Academia Publishing House

    Location of publication : Leeds

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Vigna subterraneavigna subterraneaSubject Category: Organism Names
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    Descriptor(s) : genetic distancegenetic distanceSubject Category: Properties
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    , genetic variationgenetic variationSubject Category: Properties
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    , leaf area indexleaf area indexSubject Category: Properties
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    , leavesleavesSubject Category: Anatomical and Morphological Structures
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    , phenotypic variationphenotypic variationSubject Category: Properties
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    , plant morphologyplant morphologySubject Category: Miscellaneous
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    , podspodsSubject Category: Anatomical and Morphological Structures
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    Identifier(s) : genetic variability, genotypic variability, genotypic variation, LAI, phenotypic variability, subsaharan Africa

    Geographical Location(s) : Africa South of Saharaafrica south of saharaSubject Category: Geographic Entities
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    , South Africasouth africaSubject Category: Geographic Entities
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    Broader term(s) : VignavignaSubject Category: Organism Names
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    , PapilionoideaepapilionoideaeSubject Category: Organism Names
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    , FabaceaefabaceaeSubject Category: Organism Names
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    , FabalesfabalesSubject Category: Organism Names
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    , eudicotseudicotsSubject Category: Organism Names
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    , angiospermsangiospermsSubject Category: Organism Names
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    , SpermatophytaspermatophytaSubject Category: Organism Names
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    , plantsplantsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , Anglophone Africaanglophone africaSubject Category: Geographic Entities
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    , AfricaafricaSubject Category: Geographic Entities
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    , Commonwealth of Nationscommonwealth of nationsSubject Category: Institutions and Organisations
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    , Developing Countriesdeveloping countriesSubject Category: Miscellaneous
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    , Southern Africasouthern africaSubject Category: Geographic Entities
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    , Africa South of Saharaafrica south of saharaSubject Category: Geographic Entities
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    , Threshold Countriesthreshold countriesSubject Category: Miscellaneous
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