Participatory plant breeding to develop biofortified upland rice for marginal environments
Abstract In the Highlands of Madagascar, where rice is the main staple food, explosive demographic growth has driven the need for the development of upland rice. In that context, a Participatory Plant Breeding (PPB) program conducted by the FOFIFA-Cirad partnership, aims to develop upland rice varie...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2024
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| Acceso en línea: | https://hdl.handle.net/10568/172741 |
| _version_ | 1855538563862495232 |
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| author | Castro-Pacheco, Sergio Antonio Rabekijana, Ravo Andriamiarana, Mahevanirina Raveloson, Harinjaka Rakotomalala, Joël Ramanantsoanirina, Alain Garin, Vincent Grenier, Cecile vom Brocke, Kirsten |
| author_browse | Andriamiarana, Mahevanirina Castro-Pacheco, Sergio Antonio Garin, Vincent Grenier, Cecile Rabekijana, Ravo Rakotomalala, Joël Ramanantsoanirina, Alain Raveloson, Harinjaka vom Brocke, Kirsten |
| author_facet | Castro-Pacheco, Sergio Antonio Rabekijana, Ravo Andriamiarana, Mahevanirina Raveloson, Harinjaka Rakotomalala, Joël Ramanantsoanirina, Alain Garin, Vincent Grenier, Cecile vom Brocke, Kirsten |
| author_sort | Castro-Pacheco, Sergio Antonio |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Abstract In the Highlands of Madagascar, where rice is the main staple food, explosive demographic growth has driven the need for the development of upland rice. In that context, a Participatory Plant Breeding (PPB) program conducted by the FOFIFA-Cirad partnership, aims to develop upland rice varieties adapted to farmers’ needs, with superior agronomic performances, and with high grain zinc concentration. In the area, where ferralitic soils with N and P deficiencies prevail, limited fertilizer usage persists due to elevated costs, and upland rice varieties must adapt to these low fertility environments. Thus, this paper aims to identify the adequate selection conditions and methods that allow combining the above-mentioned criteria for selection. So, 56 rice breeding lines, including high-zinc genotypes, were evaluated in field trials with contrasting fertility conditions. A relative selection efficiency analysis demonstrated that selection for yield should be done in moderate fertility environments, while selection for grain zinc concentration could be done across a diverse range of conditions. Through participatory evaluations, we identified that, for this case, grain appreciation was the most important character for deciding whether to select a line, followed by productivity and earliness. We also noted that farmers were more willing to accept a variety if it had higher grain zinc concentration. Finally, we proposed a selection index that combines agronomic, farmers’ and nutritional criteria, with the purpose of selecting lines that fulfill the expectations on these areas. Overall, this paper proposes an adapted methodology for the combination of PPB and biofortification in marginal environments. |
| format | Journal Article |
| id | CGSpace172741 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1727412025-12-08T09:54:28Z Participatory plant breeding to develop biofortified upland rice for marginal environments Castro-Pacheco, Sergio Antonio Rabekijana, Ravo Andriamiarana, Mahevanirina Raveloson, Harinjaka Rakotomalala, Joël Ramanantsoanirina, Alain Garin, Vincent Grenier, Cecile vom Brocke, Kirsten biofortification soil fertility efficiency participatory plant breeding upland rice selection index Abstract In the Highlands of Madagascar, where rice is the main staple food, explosive demographic growth has driven the need for the development of upland rice. In that context, a Participatory Plant Breeding (PPB) program conducted by the FOFIFA-Cirad partnership, aims to develop upland rice varieties adapted to farmers’ needs, with superior agronomic performances, and with high grain zinc concentration. In the area, where ferralitic soils with N and P deficiencies prevail, limited fertilizer usage persists due to elevated costs, and upland rice varieties must adapt to these low fertility environments. Thus, this paper aims to identify the adequate selection conditions and methods that allow combining the above-mentioned criteria for selection. So, 56 rice breeding lines, including high-zinc genotypes, were evaluated in field trials with contrasting fertility conditions. A relative selection efficiency analysis demonstrated that selection for yield should be done in moderate fertility environments, while selection for grain zinc concentration could be done across a diverse range of conditions. Through participatory evaluations, we identified that, for this case, grain appreciation was the most important character for deciding whether to select a line, followed by productivity and earliness. We also noted that farmers were more willing to accept a variety if it had higher grain zinc concentration. Finally, we proposed a selection index that combines agronomic, farmers’ and nutritional criteria, with the purpose of selecting lines that fulfill the expectations on these areas. Overall, this paper proposes an adapted methodology for the combination of PPB and biofortification in marginal environments. 2024 2025-02-03T15:28:58Z 2025-02-03T15:28:58Z Journal Article https://hdl.handle.net/10568/172741 en Open Access application/pdf Cambridge University Press Castro-Pacheco, S.A.; Rabekijana, R.; Andriamiarana, M.; Raveloson, H.; Rakotomalala, J.; Ramanantsoanirina, A.; Garin, V.; Grenier, C.; vom Brocke, K. (2024) Participatory plant breeding to develop biofortified upland rice for marginal environments. Experimental Agriculture 60: e26. ISSN: 0014-4797 |
| spellingShingle | biofortification soil fertility efficiency participatory plant breeding upland rice selection index Castro-Pacheco, Sergio Antonio Rabekijana, Ravo Andriamiarana, Mahevanirina Raveloson, Harinjaka Rakotomalala, Joël Ramanantsoanirina, Alain Garin, Vincent Grenier, Cecile vom Brocke, Kirsten Participatory plant breeding to develop biofortified upland rice for marginal environments |
| title | Participatory plant breeding to develop biofortified upland rice for marginal environments |
| title_full | Participatory plant breeding to develop biofortified upland rice for marginal environments |
| title_fullStr | Participatory plant breeding to develop biofortified upland rice for marginal environments |
| title_full_unstemmed | Participatory plant breeding to develop biofortified upland rice for marginal environments |
| title_short | Participatory plant breeding to develop biofortified upland rice for marginal environments |
| title_sort | participatory plant breeding to develop biofortified upland rice for marginal environments |
| topic | biofortification soil fertility efficiency participatory plant breeding upland rice selection index |
| url | https://hdl.handle.net/10568/172741 |
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