Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones
African yam bean (AYB) is an affordable protein source capable of diversifying the food base in sub-Saharan Africa. However, research efforts made towards the crop's improvement and in expanding production are limited. This study characterized 169 AYB accessions at Jimma, Ethiopia, using 31 phenotyp...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Cambridge University Press
2021
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| Acceso en línea: | https://hdl.handle.net/10568/114274 |
| _version_ | 1855538122607034368 |
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| author | Shitta, N.S. Abtew, W.G. Ndlovu, N. Oselebe, H.O. Edemodu, A. Abebe, A.T. |
| author_browse | Abebe, A.T. Abtew, W.G. Edemodu, A. Ndlovu, N. Oselebe, H.O. Shitta, N.S. |
| author_facet | Shitta, N.S. Abtew, W.G. Ndlovu, N. Oselebe, H.O. Edemodu, A. Abebe, A.T. |
| author_sort | Shitta, N.S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | African yam bean (AYB) is an affordable protein source capable of diversifying the food base in sub-Saharan Africa. However, research efforts made towards the crop's improvement and in expanding production are limited. This study characterized 169 AYB accessions at Jimma, Ethiopia, using 31 phenotypic characters. The analysis of variance revealed highly significant (P < 0.01) differences for days to 50% flowering, days to first flowering, leaf area, number of seeds per pod, pod length, seed thickness, total seed weight, petiole length and significant (P < 0.05) difference for terminal leaf length. Accession TSs62B produced the highest number of seeds per pod (17.65) and recorded the highest 100 seed weight (25.30 g), while 3A was the earliest to flower at an average of 84.50 d. Principal component analysis (PCA) of qualitative traits attributed 77.6% of observed variations to the first five principal components, of which the first two PC axes accounted for 53.6% of total variations. Cluster analysis and PCA biplot distinctly grouped the accessions into two major groups, cluster I had the highest number of accessions (108). The analytical approaches used confirmed considerable diversity across the germplasm with a distance matrix ranging from 0.37 to 0.85. The extent of diversity reflected in the current study provides breeders the baseline information to design breeding strategies, which might help identify materials for release as variety or parental lines for hybridization programmes. |
| format | Journal Article |
| id | CGSpace114274 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1142742025-11-11T10:45:07Z Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones Shitta, N.S. Abtew, W.G. Ndlovu, N. Oselebe, H.O. Edemodu, A. Abebe, A.T. pachyrhizus erosus diversity analysis underutilized beans grain legumes african yam beans sphenostylis African yam bean (AYB) is an affordable protein source capable of diversifying the food base in sub-Saharan Africa. However, research efforts made towards the crop's improvement and in expanding production are limited. This study characterized 169 AYB accessions at Jimma, Ethiopia, using 31 phenotypic characters. The analysis of variance revealed highly significant (P < 0.01) differences for days to 50% flowering, days to first flowering, leaf area, number of seeds per pod, pod length, seed thickness, total seed weight, petiole length and significant (P < 0.05) difference for terminal leaf length. Accession TSs62B produced the highest number of seeds per pod (17.65) and recorded the highest 100 seed weight (25.30 g), while 3A was the earliest to flower at an average of 84.50 d. Principal component analysis (PCA) of qualitative traits attributed 77.6% of observed variations to the first five principal components, of which the first two PC axes accounted for 53.6% of total variations. Cluster analysis and PCA biplot distinctly grouped the accessions into two major groups, cluster I had the highest number of accessions (108). The analytical approaches used confirmed considerable diversity across the germplasm with a distance matrix ranging from 0.37 to 0.85. The extent of diversity reflected in the current study provides breeders the baseline information to design breeding strategies, which might help identify materials for release as variety or parental lines for hybridization programmes. 2021-02 2021-07-14T10:17:19Z 2021-07-14T10:17:19Z Journal Article https://hdl.handle.net/10568/114274 en Open Access application/pdf Cambridge University Press Shitta, N.S., Abtew, W.G., Ndlovu, N., Oselebe, H.O., Edemodu, A.C. & Abebe, A.T. (2021). Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones. Plant Genetic Resources: Characterization and Utilization, 19(1), 58-66. |
| spellingShingle | pachyrhizus erosus diversity analysis underutilized beans grain legumes african yam beans sphenostylis Shitta, N.S. Abtew, W.G. Ndlovu, N. Oselebe, H.O. Edemodu, A. Abebe, A.T. Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones |
| title | Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones |
| title_full | Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones |
| title_fullStr | Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones |
| title_full_unstemmed | Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones |
| title_short | Morphological characterization and genotypic identity of African yam bean (Sphenostylis stenocarpa Hochst ex. A. Rich. Harms) germplasm from diverse ecological zones |
| title_sort | morphological characterization and genotypic identity of african yam bean sphenostylis stenocarpa hochst ex a rich harms germplasm from diverse ecological zones |
| topic | pachyrhizus erosus diversity analysis underutilized beans grain legumes african yam beans sphenostylis |
| url | https://hdl.handle.net/10568/114274 |
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