The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal
Participatory plant-breeding (PPB) methods were used to develop two acceptable, cold-tolerant rice varieties in Nepal: Maehhapuchhre-3 (M-3) and Machhapuchhre-9 (M-9). Both were derived from the cross Fuji 102 Chhomrong Dhan. Following the introduction of these varieties from 1993 to 1998,the change...
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| Format: | Book Chapter |
| Language: | Inglés |
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CGIAR Systemwide Program on Participatory Research and Gender Analysis for Technology Development and Institutional Innovation
2001
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/81905 |
| _version_ | 1855541963862835200 |
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| author | Joshi, Krishna D. Sthapit, B.R. Witcombe, John R. |
| author_browse | Joshi, Krishna D. Sthapit, B.R. Witcombe, John R. |
| author_facet | Joshi, Krishna D. Sthapit, B.R. Witcombe, John R. |
| author_sort | Joshi, Krishna D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Participatory plant-breeding (PPB) methods were used to develop two acceptable, cold-tolerant rice varieties in Nepal: Maehhapuchhre-3 (M-3) and Machhapuchhre-9 (M-9). Both were derived from the cross Fuji 102 Chhomrong Dhan. Following the introduction of these varieties from 1993 to 1998,the changes in the rice landraces and varieties that fanners grew were studied in 10 villages. In seven of the villages, for which data were analyzed for both 1996 and 1999, fanners grew 19 landraces and four modem varieties, of which three (M-3, M-9, and Lumle 2) were the products of PPB. These three varieties covered
11 % of the total surveyed area in 1999. The introduction of the PPB varieties had the greatest impact on the more commonly grown landraces. During the years studied, because the new varieties had exotic germplasm in their parentage, there was an overall increase in varietal diversity. However, in the future, ¡increasing adaption of M-3 and M-9 could result in significant reductions in varietal diversity. |
| format | Book Chapter |
| id | CGSpace81905 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2001 |
| publishDateRange | 2001 |
| publishDateSort | 2001 |
| publisher | CGIAR Systemwide Program on Participatory Research and Gender Analysis for Technology Development and Institutional Innovation |
| publisherStr | CGIAR Systemwide Program on Participatory Research and Gender Analysis for Technology Development and Institutional Innovation |
| record_format | dspace |
| spelling | CGSpace819052023-02-15T05:39:20Z The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal Joshi, Krishna D. Sthapit, B.R. Witcombe, John R. oryza sativa temperature resistance highlands innovation adoption fitomejoramiento resistencia a la temperatura zona de montaña adopción de innovaciones Participatory plant-breeding (PPB) methods were used to develop two acceptable, cold-tolerant rice varieties in Nepal: Maehhapuchhre-3 (M-3) and Machhapuchhre-9 (M-9). Both were derived from the cross Fuji 102 Chhomrong Dhan. Following the introduction of these varieties from 1993 to 1998,the changes in the rice landraces and varieties that fanners grew were studied in 10 villages. In seven of the villages, for which data were analyzed for both 1996 and 1999, fanners grew 19 landraces and four modem varieties, of which three (M-3, M-9, and Lumle 2) were the products of PPB. These three varieties covered 11 % of the total surveyed area in 1999. The introduction of the PPB varieties had the greatest impact on the more commonly grown landraces. During the years studied, because the new varieties had exotic germplasm in their parentage, there was an overall increase in varietal diversity. However, in the future, ¡increasing adaption of M-3 and M-9 could result in significant reductions in varietal diversity. 2001 2017-06-20T08:59:52Z 2017-06-20T08:59:52Z Book Chapter https://hdl.handle.net/10568/81905 en Open Access CGIAR Systemwide Program on Participatory Research and Gender Analysis for Technology Development and Institutional Innovation Joshi, Krishna D.; Sthapit, B.R.; Witcombe, John R.. 2001. The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal. In: An exchange of experiences from South and South East Asia: Proceedings of the international symposium on Participatory plant breeding and participatory plant genetic resources enhancement, Pokhara, Nepal, 1-5 May 2000. Cali: CGIAR Program for Participatory Research and Gender Analysis: 303-310. |
| spellingShingle | oryza sativa temperature resistance highlands innovation adoption fitomejoramiento resistencia a la temperatura zona de montaña adopción de innovaciones Joshi, Krishna D. Sthapit, B.R. Witcombe, John R. The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal |
| title | The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal |
| title_full | The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal |
| title_fullStr | The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal |
| title_full_unstemmed | The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal |
| title_short | The impact of participatory plant breeding (PPB) on landrace diversity: A case study for high-altitude rice in Nepal |
| title_sort | impact of participatory plant breeding ppb on landrace diversity a case study for high altitude rice in nepal |
| topic | oryza sativa temperature resistance highlands innovation adoption fitomejoramiento resistencia a la temperatura zona de montaña adopción de innovaciones |
| url | https://hdl.handle.net/10568/81905 |
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