Utilization of existing genetic variability
The diversity of bean producing areas in Africa in terms of environments and cropping systems and the nature of existing cultivars are briefly described. The lengths of growing seasons and rainfall, temperature and photoperiod during the growing seasons of bean producing areas are being characterize...
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| Format: | Conference Paper |
| Language: | Inglés |
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Southern Africa Development Coordination Conference (SADCC)
1989
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| Online Access: | https://hdl.handle.net/10568/55960 |
| _version_ | 1855524539361918976 |
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| author | Smithson, James Brady |
| author_browse | Smithson, James Brady |
| author_facet | Smithson, James Brady |
| author_sort | Smithson, James Brady |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The diversity of bean producing areas in Africa in terms of environments and cropping systems and the nature of existing cultivars are briefly described. The lengths of growing seasons and rainfall, temperature and photoperiod during the growing seasons of bean producing areas are being characterized. These have been combined into an index to map the distributions of areas of similar growing conditions in Latin America and Africa. Research stations may be classified in a similar manner. Such classifications require refining but are important in directing flows of germplasm and breeding materials between Latin America and Africa and within African national programmes. Knowledge of genotypic responses to environments is necessary to support such classifications. Evaluation of common sets of genotypes across locations and seasons, for example the African Bean Yield Adaptation Nursery (AFBYAN), is one means of obtaining such knowledge. Recent introductions have exhibited dramatic improvements in performance over existing cultivars. Possible strategies for the evaluation of local and introduced germplasm and breeding materials are discussed. (AS) |
| format | Conference Paper |
| id | CGSpace55960 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1989 |
| publishDateRange | 1989 |
| publishDateSort | 1989 |
| publisher | Southern Africa Development Coordination Conference (SADCC) |
| publisherStr | Southern Africa Development Coordination Conference (SADCC) |
| record_format | dspace |
| spelling | CGSpace559602024-01-09T09:48:34Z Utilization of existing genetic variability Smithson, James Brady phaseolus vulgaris plant breeding genetic variation bean nurseries climate maps field experiments research fitomejoramiento variacion genetica viveros de frijol clima mapas experimentos de campo The diversity of bean producing areas in Africa in terms of environments and cropping systems and the nature of existing cultivars are briefly described. The lengths of growing seasons and rainfall, temperature and photoperiod during the growing seasons of bean producing areas are being characterized. These have been combined into an index to map the distributions of areas of similar growing conditions in Latin America and Africa. Research stations may be classified in a similar manner. Such classifications require refining but are important in directing flows of germplasm and breeding materials between Latin America and Africa and within African national programmes. Knowledge of genotypic responses to environments is necessary to support such classifications. Evaluation of common sets of genotypes across locations and seasons, for example the African Bean Yield Adaptation Nursery (AFBYAN), is one means of obtaining such knowledge. Recent introductions have exhibited dramatic improvements in performance over existing cultivars. Possible strategies for the evaluation of local and introduced germplasm and breeding materials are discussed. (AS) 1989 2015-01-28T14:22:02Z 2015-01-28T14:22:02Z Conference Paper https://hdl.handle.net/10568/55960 en Open Access Southern Africa Development Coordination Conference (SADCC) Centro Internacional de Agricultura Tropical (CIAT), Regional Programme on Beans in Southern Africa Smithson, J.B. 1989. Utilization of existing genetic variability. In: Smithson, J.B. (ed.). Workshop on Bean Varietal Improvement in Africa (1989, Maseru, Lesotho). Proceedings. Southern Africa Development Coordination Conference (SADCC); Centro Internacional de Agricultura Tropical (CIAT), Regional Programme on Beans in Southern Africa, Arusha, TZ. p. 68-85. (CIAT African workshop series no. 4) |
| spellingShingle | phaseolus vulgaris plant breeding genetic variation bean nurseries climate maps field experiments research fitomejoramiento variacion genetica viveros de frijol clima mapas experimentos de campo Smithson, James Brady Utilization of existing genetic variability |
| title | Utilization of existing genetic variability |
| title_full | Utilization of existing genetic variability |
| title_fullStr | Utilization of existing genetic variability |
| title_full_unstemmed | Utilization of existing genetic variability |
| title_short | Utilization of existing genetic variability |
| title_sort | utilization of existing genetic variability |
| topic | phaseolus vulgaris plant breeding genetic variation bean nurseries climate maps field experiments research fitomejoramiento variacion genetica viveros de frijol clima mapas experimentos de campo |
| url | https://hdl.handle.net/10568/55960 |
| work_keys_str_mv | AT smithsonjamesbrady utilizationofexistinggeneticvariability |