Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement
Seed security is vital for food security. Rapid-cycle, climate-adaptive breeding programs and seed systems that deliver new, elite varieties to farmers to replace obsolete ones can greatly improve the productivity of maize-based cropping systems in sub-Saharan Africa (SSA). Despite the importance an...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/141977 |
| _version_ | 1855541853900767232 |
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| author | Chivasa, Walter Regasa, Mosisa Worku Chere, Adefris Teklewold Setimela, Peter Sekwena Gethi, James Magorokosho, Cosmos Davis, Nicholas Prasanna, Boddupalli Maruthi |
| author_browse | Chere, Adefris Teklewold Chivasa, Walter Davis, Nicholas Gethi, James Magorokosho, Cosmos Prasanna, Boddupalli Maruthi Regasa, Mosisa Worku Setimela, Peter Sekwena |
| author_facet | Chivasa, Walter Regasa, Mosisa Worku Chere, Adefris Teklewold Setimela, Peter Sekwena Gethi, James Magorokosho, Cosmos Davis, Nicholas Prasanna, Boddupalli Maruthi |
| author_sort | Chivasa, Walter |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Seed security is vital for food security. Rapid-cycle, climate-adaptive breeding programs and seed systems that deliver new, elite varieties to farmers to replace obsolete ones can greatly improve the productivity of maize-based cropping systems in sub-Saharan Africa (SSA). Despite the importance and benefits of accelerated varietal turnover to climate change adaptation and food security, the rate of maize varietal replacement in SSA is slow. This review outlines the major bottlenecks, drivers, risks, and benefits of active replacement of maize varieties in eastern and southern Africa (ESA) and highlights strategies that are critical to varietal turnover. Although there is an upsurge of new seed companies in ESA and introduction of new varieties with better genetics in the market, some established seed companies continue to sell old (over 15-year-old) varieties. Several recently developed maize hybrids in ESA have shown significant genetic gains under farmers’ conditions. Empirical evidence also shows that timely replacement of old products results in better business success as it helps seed companies maintain or improve market share and brand relevance. Therefore, proactive management of product life cycles by seed companies benefits both the farmers and businesses alike, contributing to improved food security and adaptation to the changing climate. |
| format | Journal Article |
| id | CGSpace141977 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1419772025-12-08T10:11:39Z Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement Chivasa, Walter Regasa, Mosisa Worku Chere, Adefris Teklewold Setimela, Peter Sekwena Gethi, James Magorokosho, Cosmos Davis, Nicholas Prasanna, Boddupalli Maruthi maize varieties genetic gain products Seed security is vital for food security. Rapid-cycle, climate-adaptive breeding programs and seed systems that deliver new, elite varieties to farmers to replace obsolete ones can greatly improve the productivity of maize-based cropping systems in sub-Saharan Africa (SSA). Despite the importance and benefits of accelerated varietal turnover to climate change adaptation and food security, the rate of maize varietal replacement in SSA is slow. This review outlines the major bottlenecks, drivers, risks, and benefits of active replacement of maize varieties in eastern and southern Africa (ESA) and highlights strategies that are critical to varietal turnover. Although there is an upsurge of new seed companies in ESA and introduction of new varieties with better genetics in the market, some established seed companies continue to sell old (over 15-year-old) varieties. Several recently developed maize hybrids in ESA have shown significant genetic gains under farmers’ conditions. Empirical evidence also shows that timely replacement of old products results in better business success as it helps seed companies maintain or improve market share and brand relevance. Therefore, proactive management of product life cycles by seed companies benefits both the farmers and businesses alike, contributing to improved food security and adaptation to the changing climate. 2022-03 2024-05-21T15:01:36Z 2024-05-21T15:01:36Z Journal Article https://hdl.handle.net/10568/141977 en Open Access application/pdf Elsevier Chivasa, W., Regasa, M. W., Chere, A. T., Setimela, P. S., Gethi, J., Magorokosho, C., Davis, N., & Prasanna, B. M. (2022). Maize varietal replacement in Eastern and Southern Africa: Bottlenecks, drivers and strategies for improvement. Global Food Security, 32, 100589. https://doi.org/10.1016/j.gfs.2021.100589 |
| spellingShingle | maize varieties genetic gain products Chivasa, Walter Regasa, Mosisa Worku Chere, Adefris Teklewold Setimela, Peter Sekwena Gethi, James Magorokosho, Cosmos Davis, Nicholas Prasanna, Boddupalli Maruthi Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement |
| title | Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement |
| title_full | Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement |
| title_fullStr | Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement |
| title_full_unstemmed | Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement |
| title_short | Maize varietal replacement in Eastern and Southern Africa: bottlenecks, drivers and strategies for improvement |
| title_sort | maize varietal replacement in eastern and southern africa bottlenecks drivers and strategies for improvement |
| topic | maize varieties genetic gain products |
| url | https://hdl.handle.net/10568/141977 |
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