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Farmer Participatory Crop Improvement. I. Varietal Selection and Breeding Methods and Their Impact on Biodiversity

  • J. R. Witcombe (a1), A. Joshi (a2), K. D. Joshi (a3) and B. R. Sthapit (a3)

Farmer participatory approaches for the identification or breeding of improved crop cultivars can be usefully categorized into participatory varietal selection (PVS) and participatory plant breeding (PPB). Various PVS and PPB methods are reviewed. PVS is a more rapid and cost-effective way of identifying farmer-preferred cultivars if a suitable choice of cultivars exists. If this is impossible, then the more resource-consuming PPB is required. PPB can use, as parents, cultivars that were identified in successful PVS programmes. Compared with conventional plant breeding, PPB is more likely to produce farmer-acceptable products, particularly for marginal environments. The impact of farmer participatory research on biodiversity is considered. The long-term effect of PVS is to increase biodiversity, but where indigenous variability is high it can also reduce it. PPB has a greater effect on increasing biodiversity although its impact may be limited to smaller areas. PPB can be a dynamic form of in situ genetic conservation.

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Browning J. A. & Frey K. J. (1981). The multiline concept in theory and practice. In Strategies for the Control of Cereal Disease. (Eds Jenkyn J. F. and Plumb R. T.). Oxford: Blackwcll Scientific Publications.
Chambers R. (1989). Institutions and practical change. Reversals, institutions and change. In Farmer First, 181195 (Eds Chambers R., Pacey A. and Thrupp L. A.). London: Intermediate Technology Publications.
Cromwell E. & Wiggins S. (1993). Performance assessment. In Sowing Beyond the State. NCOs and Seed Supply in Developing Countries, 8199. London: Overseas Development Institute.
Frey K. J., Browning J. A. & Simons M. D. (1977). Management systems for host genes to control disease loss. Annals of New York Academy of Sciences 287:255274.
Galt D. L. (1989). Joining FSR to commodity programme breeding efforts earlier: increasing plant breeding efficiency in Nepal. Agricultural Administration (Research and Extension) Network: Network Paper 8. London: Overseas Development Institute.
Joshi A. & Witcombe J. R. (1996). Farmer participatory crop improvement. II. Participatory varietal selection, a case study in India. Experimental Agriculture 32:469485.
Joshi K. D., Rana R. B., Subedi M., Kadayat K. B. & Sthapit B. R. (1996). Addressing diversity through farmer participatory variety testing and dissemination approach: A case study of chaite rice in the western hills of Nepal. In Using Diversity. Enhancing and Maintaining Genetic Resources on Farm. Proceedings of a workshop held on 19–21 June 1995, New Delhi, India, 158175. (Eds Sperling L. and Loevinsohn M. L.). New Delhi, India: International Development Research Centre (in press).
Lopez P. B. (1994). A new plant disease: uniformity. Ceres 26:4147.
Maurya D. M., Bottrall A., & Farrington J. (1988). Improved livelihoods, genetic diversity and farmers' participation: a strategy for rice-breeding in rainfed areas of India. Experimental Agriculture 24:311320.
Priestley R. H. & Bayles R. A. (1980). Varietal diversification as a means of reducing the spread of cereal diseases in the United Kingdom. Journal of the National Institute of Agricultural Botany 15:205214.
Salazar R. (1992). MASIPAG: alternative community rice breeding in the Philippines. Appropriate Technology 18:2021.
Sperling L., Loevinsohn M. E. & Ntabomvra B. (1993). Rethinking the farmers role in plant breeding: local bean experts and on-station selection in Rwanda. Experimental Agriculture 29:509519.
Sthapit B. R., Joshi K. D. & Witcombe J. R. (1996). Farmer participatory crop improvement. III. Participatory plant breeding, a case study of rice in Nepal. Experimental Agriculture 32:487504.
Thakur R. (1995). Prioritization and development of breeding strategics for rainfcd lowlands: a critical appraisal. In Proceedings of the IRRI Conference 1995. Fragile Lives in Fragile Ecosystems, 817824. Los Banos, Philippines: IRRI. (in press).
Virk D. S., Packwood A. J. P. & Witcombe J. R. (1996). Plant breeding, varietal testing and popularisation, and research linkages. Paper presented at ODA/ICAR workshop on Reorganising Research for Rainfed Farming. CRIDA, Hyderabad, 11–15th September 1995. (in press).
Weltzien R., E., Whitaker M. L. & Dhamotharan M. (1996). Diagnostic methods for breeding pearl millet with farmers in Rajasthan. In Enhancing and Maintaining Genetic Resources on Farm. Proceedings of a workshop held on 19–21 June 1995, New Delhi, India, 127139. (Eds Sperling L. and Loevinsohn M. L.). New Delhi, India: International Development Research Centre.
Witcombe J. R. (1989). Variability in the yield of pearl millet hybrids and varieties in India and Pakistan. In Variability in Grain Yields. Implications for Agricultural Research and Policy in Developing Countries, 206220 (Eds Anderson J. R. and Hazell P. B. R.). Baltimore: Johns Hopkins University Press. In association with the International Food Policy Research Institute.
Wolfe M. S. (1990). Intra-crop diversification: disease yield and quality. In Crop Protection in Organic and Low Input Agriculture-Options for Reducing Chemical Usage, 105114. British Crop Protection Council Monograph 45. Farnham, Surrey: BCPC.
Worede M. & Mckbib H. (1993). Linking genetic resource conservation to fanners in Ethiopia. In Cultivating Knowledge. Genetic Diversity, Farmer Experimentation and Crop Research, 7884 (Eds de Boef W., Amanor K. and Wellard K.). London: Intermediate Technology Publications.
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Experimental Agriculture
  • ISSN: 0014-4797
  • EISSN: 1469-4441
  • URL: /core/journals/experimental-agriculture
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