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Managing Crop Biological Diversity on Farms

Chapter
Part of the Natural Resource Management and Policy book series (NRMP, volume 27)

Abstract

Managing the diversity of crop genetic resources on farms is of economic importance because it is a survival strategy for some of the world’s rural poor, though conserving them on farms also reduces the loss of potentially valuable alleles in genetic stocks still held locally. International agreements encourage the design of benefit-sharing schemes to support conservation through rewarding farmers—but mechanisms for doing so are still unclear. “Win-win” policy solutions occur when crop biodiversity is maintained on farms for the benefit of future generations while farmers themselves benefit today from a wider set of crop variety attributes for consumption or sale. Empirical approaches, guided by theoretical principles in economics and genetics, can be used to identify locations with high benefit-cost ratios for on-farm conservation. Policy instruments to support conservation in those locations include supply-related mechanisms such as community genebanks, biodiversity registers, and the introduction of modern varieties that complement the range of traits found in local varieties. When markets are not well developed and transaction costs are high, farmers’ supply of diverse crop varieties, and their derived demand for local landraces, can be enhanced by participatory plant breeding. As incomes rise and commercial markets develop, landraces will continue to be grown if there is consumer demand for a unique attribute that cannot be easily bred into or transferred to modern varieties. Yet, the necessary conditions for such market-based initiatives are not often met in the locations where landraces are cultivated. Protecting one landrace does not necessarily have desirable implications for either diversity conservation or social equity. The relative costs and benefits of such instruments have not yet been assessed rigorously.

Key words

crop biological diversity crop genetic resources economic development on-farm conservation 

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References

  1. Alston, J. M., Pardey, P. G., and Smith, V. H., 1998, Financing agricultural R&D in rich countries, Aust. J. Agr. Resource Econ. 42(1):51–82.CrossRefGoogle Scholar
  2. Antle, J. M., 1999, The new economics of agriculture, Presidential Address prepared for the Annual Meetings of the American Agricultural Economics Association, Nashville (August, 1999).Google Scholar
  3. Bellon, M. R., 1996, The dynamics of crop infraspecific diversity: A conceptual framework the farmer level, Econ. Bot. 50:26–39.Google Scholar
  4. Bellon, M. R., 2000, Demand and supply of crop infraspecific diversity on farms: Towards a policy framework for on-farm conservation, CIMMYT Economics Working Paper 01-01, International Maize and Wheat Improvement Center (CIMMYT), Mexico, D.F.Google Scholar
  5. Bellon, M. R., Pham, J.-L., and Jackson, M. T., 1997, Genetic conservation: A role for rice farmers, in: Plant Genetic Conservation: The In-Situ Approach, N. Maxted, B. V. Ford-Lloyd, and J. G. Hawkes, ed., Chapman and Hall, London.Google Scholar
  6. Bellon, M. R., Pham, J.-L., Sebastian, L. S., Francisco, S. R., Loresto, G. C., Erasga, D., Sanchez, P., Calibo, M., Abrigo, G., and Quilloy, S., 1998, Farmers’ perceptions of varietal diversity: Implications for on-farm conservation of rice, in: Farmers, Gene Banks, and Crop Breeding: Economic Analyses of Diversity in Wheat, Maize, and Rice, M. Smale, ed., Kluwer Academic Publishers and International Maize and Wheat Improvement Center (CIMMYT), Dordrecht and Mexico, D.F., pp. 95–108.Google Scholar
  7. Bellon, M. R., and Risopoulos J., 2001, Small-scale farmers expand the benefits of maize germplasm: A case study from Chiapas, Mexico, World Devel. 9(5):799–812.CrossRefGoogle Scholar
  8. Bellon, M. R., and Taylor, J. E., 1993, ‘Folk’ soil taxonomy and the partial adoption of new seed varieties, Econ. Devel. Cult. Change 41:763–786.CrossRefGoogle Scholar
  9. Benin, S., Smale, M., Gebremedhin, B., Pender, J., and Ehui, S., 2003, The economic determinants of cereal crop diversity on farms in the Ethiopian Highlands, Contributed paper, 25th International Conference of Agricultural Economists, Durban, South Africa (August 16–22, 2003).Google Scholar
  10. Birol, E., and Gyovai, Á., 2003, The value of agricultural biodiversity in Hungarian home gardens: Agri-Environmental policies in a transitional economy, Contributed paper, Fourth BIOECON workshop on Economic Policies for Biodiversity Conservation, Venice International University, Venice (August 28–29, 2003).Google Scholar
  11. Boserup, E., 1965, Conditions of Agricultural Growth, Aldine Publishing Company, Chicago, Illinois.Google Scholar
  12. Brown, G. M., 1990, Valuation of genetic resources, in: The Preservation and Valuation of Biological Resources, G. H. Orians, G. M. Brown, Jr., W. E. Kunin, and J. E. Swierbinski, eds., University of Washington Press, Seattle, Washington.Google Scholar
  13. Brush, S. B., ed., 2000, Genes in the Field: On-Farm Conservation of Crop Diversity, International Plant Genetic Resources Institute, International Development Research Centre, and Lewis Publishers, Rome, Ottawa, and Boca Raton.Google Scholar
  14. Brush, S. B., and Meng, E., 1998, Farmers’ valuation and conservation of crop genetic resources, Genet. Resour. Crop Ev. 45:139–150.CrossRefGoogle Scholar
  15. Brush, S. B., Taylor, J. E., and Bellon, M. R., 1992, Biological diversity and technology adoption in Andean potato agriculture, J. Dev. Econ. 38:365–387.CrossRefGoogle Scholar
  16. Byerlee, D., 1996, Modern varieties, productivity, and sustainability: Recent experience and emerging challenges, World Dev. 24(40):697–718.CrossRefGoogle Scholar
  17. Cornes, R., and Sandier, T., 1986, The Theory of Externalities, Public Goods, and Club Goods, Cambridge University Press, Cambridge.Google Scholar
  18. Cromwell, E., 1996, Governments, Farmers, and Seeds in a Changing Africa, CABI, Wallingford, U. K.Google Scholar
  19. CRS, ICRISAT, and ODI, 2002, Seed Vouchers and Fairs: A Manual for Seed-Based Agricultural Recovery after Disaster in Africa, Catholic Relief Services, International Crops Research Institute for the Semi-Arid Tropics, Nairobi, Kenya, and Overseas Development Agency, London.Google Scholar
  20. Falcinelli, M., 1997, II miglioramento genetico delle colture tipiche locali, L’Informatore Agrario 47:73–75.Google Scholar
  21. Frankel, O. H., 1970, Genetic dangers of the green revolution, World Agr. 19:9–14.Google Scholar
  22. Friis-Hansen, E., 1996, The role of local plant genetic resources management in participatory breeding, in: Participatory Plant Breeding: Proceedings of a Workshop on Participatory Plant Breeding, P. Eyzaguirre and M. Iwanaga, eds., Wageningen, Netherlands, and International Plant Genetic Resources Institute (IPGRI), Rome, pp. 66–76.Google Scholar
  23. Friis-Hansen, E., and Sthapit, B., eds., 2000, Participatory Approaches to the Conservation and Use of Plant Genetic Resources, International Plant Genetic Resources Institute (IPGRI), Rome, Italy.Google Scholar
  24. Fuglie, K., Ballenger, N., Day, K., Klotz, C, Ollinger, M, Reilly, J., Vasavada, U., and Yee, J., 1996, Agricultural Research and Development: Public and Private Investments Under Alternative Markets and Institutions, Economic Research Service, U. S. Department of Agriculture, AER No. 735.Google Scholar
  25. Gauchan, D., and Smale, M, 2002, Choosing the “right” tools to assess the economic costs and benefits of growing landraces: An illustrative example from Bara District, Central Terai, Nepal, Plant Genetic Resources Newsletter 134:41–44.Google Scholar
  26. Gauchan, D., Smale, M., and Chaudhury, P., 2003, Market-based incentives for conserving diversity on farms: The case of rice landraces in Central Terai, Nepal, Contributed paper, Fourth BIOECON workshop on Economic Policies for Biodiversity Conservation, Venice International University, Venice (August 28–29, 2003).Google Scholar
  27. Hayami, Y., and Ruttan, V. W., 1985, Agricultural Development: An International Perspective, Johns Hopkins University Press, Baltimore, Maryland.Google Scholar
  28. Hayes, D. J., and Lence, S. H., 2002, A new brand of agriculture: Farmer-owned brands reward innovation, Choices (Fall):6–10.Google Scholar
  29. Heisey, P., Smale, ML, Byerlee, D., and Souza, E., 1997, Wheat rusts and the costs of genetic diversity in the Punjab of Pakistan, Amer. J. AgrL Econ. 79:726–737.Google Scholar
  30. Jarvis, D. I., Myer, L., Klemick, H., Guarino, L., Smale, M., Brown, A. H. D., Sadiki, M., Sthapit, B., and Hodgkin, T., 2000, A Training Guide for In Situ Conservation On-Farm. Version 1, International Plant Genetic Resources Institute (IPGRI), Rome, Italy.Google Scholar
  31. Jones, R. B., Longley, C, Bramel, P., and Remington, T., 2002, The need to look beyond the production and provision of relief seed: Experiences from Southern Sudan, Disasters 26(4):302–315.PubMedCrossRefGoogle Scholar
  32. Joshi, K. D., and Sthapit, B. R., 1990, Informal Research and Development (IRD): A New Approach to Research and Extension, Lumle Agricultural Research Centre Discussion Paper No. 90/4, Lumle Agricultural Research Centre, Pokhara, Nepal.Google Scholar
  33. Joshi, K. D., Subedi, M., Kadayat, K. B., Rana, R. B., and Sthapit, B. R., 1997, Enhancing on-farm varietal diversity through participatory variety selection: A case study of Chaite rice in Nepal, Exp. Agric. 33:1–10.CrossRefGoogle Scholar
  34. Loevinsohn, M., and Sperling, L., eds., 1995, Joining dynamic conservation to decentralized genetic enhancement: Prospects and issues, in: Using Diversity: Enhancing and Maintaining Genetic Resources On-Farm, Proceedings of a workshop International Development Research Centre, New Delhi, India, pp. 1–7 (June 19–21, 1995).Google Scholar
  35. Louette, D., Charrier, A., and Berthaud, J., 1997, In situ conservation of maize in Mexico: Genetic diversity and maize seed management in a traditional community, Econ. Bot. 51:20–38.Google Scholar
  36. Maurya, D. M., Bottrall, A., and Farrington, J., 1998, Improved livelihoods, genetic diversity and farmers’ participation: A strategy for rice-breeding in rainfed areas of India, Exp. Agric. 24:311–320.Google Scholar
  37. Maxted, N., Ford-Lloyd, B. V., and Hawkes, J. G., eds., 1997, Plant Genetic Conservation: The In-Situ Approach, Chapman and Hall, London.Google Scholar
  38. Meng, E. C. H., 1997, Land allocation decisions and in situ conservation of crop genetic resources: The case of wheat landraces in Turkey, Ph.D. thesis, University of California, Davis.Google Scholar
  39. Meng, E. C. H., Smale, M., Bellon, M. R., and Grimanelli, D., 1998, Definition and measurement of crop diversity for economic analysis, in: Farmers, Gene Banks and Crop Breeding: Economic Analyses of Diversity in Maize, Wheat, and Rice, M. Smale, ed., Kluwer Academic Press and International Maize and Wheat Improvement Center, Dordrecht.Google Scholar
  40. Meng, E. C. H, Taylor, J. E., and Brush, S. B., 1998, Implications for the conservation of wheat landraces in Turkey from a household model of varietal choice, in: Farmers, Gene Banks and Crop Breeding: Economic Analyses of Diversity in Wheat, Maize, and Rice, M. Smale, ed., Kluwer Academic Press and CIMMYT, Dordrecht, pp. 127–143.Google Scholar
  41. Morris, M. L., 1998, Maize Seed Industries in Developing Countries, Lynne Rienner, Boulder, and CIMMYT, Mexico.Google Scholar
  42. Morris, M. L., Rusike, J., and Smale, M., 1998, Maize seed industries: A conceptual framework, in: Maize Seed Industries in Developing Countries, M. Morris, ed., Lynne Rienner, Boulder, and CIMMYT, Mexico.Google Scholar
  43. Perales, R. H., Brush, S. B., and Qualset, C. O., 1998, Agronomic and economic competitiveness of maize landraces and in situ conservation in Mexico, in: Farmers, Gene Banks and Crop Breeding: Economic Analyses of Diversity in Wheat, Maize, and Rice, M. Smale, ed., Kluwer Academic Press and CIMMYT, Dordrecht, pp. 109–126.Google Scholar
  44. Pingali, P., 1997, From subsistence to commercial production systems, Amer. J. Agri. Econ. 79:628–634.Google Scholar
  45. Pingali, P., Hossain, M., and Gerpacio, R. V., 1997, Asian rice market: Demand and supply prospects, in: Asian Rice Bowls: The Returning Crisis?, P. L. Pingali, M. Hossain, and R. V. Gerpacio, eds., CABI Publishing and International Rice Research Institute (IRRI), Wallingford, U. K., and Manila, Philippines, pp. 126–144.Google Scholar
  46. Pray, C. E., 1998, Impact of biotechnology on the demand for rice biodiversity, in: Agricultural Values of Plant Genetic Resources, R. E. Evenson, D. Gollin, and V. Santaniello, eds., CABI Publishing, Wallingford, U. K., and FAO, Rome, pp. 249–259.Google Scholar
  47. Ramanna, A., and Smale, M., 2004, Rights and access to plant genetic resources in India’s new legislation, Dev. Policy Rev. 22(4):423–442.CrossRefGoogle Scholar
  48. Rana, R. B., Gauchan, D., Rijal, D. K., Khatiwada, S. P., Paudel, C. L., Chaudhary, P., and Tiwari, P. R., 2000, Socioeconomic data collection and analysis: Nepal, in: Conserving Agricultural Biodiversity In Situ: A Scientific Basis for Sustainable Agriculture, D. Jarvis, B. Sthapit, and L. Sears, eds., International Plant Genetic Resources Institute (IPGRI), Rome, pp. 54–56.Google Scholar
  49. Renkow, M., and Traxler, G., 1994, Incomplete adoption of modern cereal varieties: The role of grain-fodder tradeoffs, Selected paper presented at the annual meeting of the American Agricultural Economics Association, San Diego (August 7–10, 1994).Google Scholar
  50. Rice, E., Smale, M., and Blanco, J.-L., 1998, Farmers’ use of improved seed selection practices in Mexican maize: Evidence and issues from the Sierra de Santa Marta, World Dev. 26(9): 1625–1640.CrossRefGoogle Scholar
  51. Rijal, D. K., Rana, R., Subedi, A., and Sthapit, B. R., 2000, Adding value to landraces: Community-based approaches for in situ conservation of plant genetic resources in Nepal, in: Participatory Approaches to the Conservation and Use of Plant Genetic Resources, E. Friis-Hansen and B. Sthapit, eds., International Plant Genetic Resources Institute (IPGRI), Rome, pp. 166–172.Google Scholar
  52. Rijal, D. K., Subedi, A., Upadhaya, M. P., Rana, R. B., Chaudhary, P., Tiwari, P. R., Tiwari, R. K., Sthapit, B. R., and Gauchan, D., 2001, Community biodiversity registers: Developing community-based databases for genetic resources and local knowledge in Nepal, paper prepared for the First National Workshop of the Project, Strengthening Scientific Basis of In situ Conservation of Agrobiodiversity On-farm: Nepal, Lumle, Nepal (April 24–26, 2001).Google Scholar
  53. Romer, P. M., 1993, Two Strategies for Economic Development: Using Ideas and Producing Ideas. Proceedings of the World Bank Annual Conference on Development Economics 1992, The World Bank, Washington, D. C.Google Scholar
  54. Sandler, T., 1999, Intergenerational public goods: Strategies, efficiency and institutions, in: Global Public Goods, I. Kaul, I. Grunberg, and M. A. Stein, eds., Oxford University Press and United Nations Development Programme, New York, pp. 20–50.Google Scholar
  55. Smale, M., and Bellon, M., 1999, A conceptual framework for valuing on-farm genetic resources, in: Agrobiodiversity: Characterization, Utilization, and Management, D. Wood and J. Lenné, eds., CABI International, Wallingford, U. K., pp. 387–408.Google Scholar
  56. Smale, M, Bellon, M, and Aguirre, A., 2001, Maize diversity, variety attributes, and farmers’ choices in Southeastern Guanajuato, Mexico, Econ. Devel Cult. Change 50(1): 201–225.CrossRefGoogle Scholar
  57. Smale, M., Bellon, M., Aguirre, A., Manuel, I., Mendoza, J., Solano, A. M, Martínez, R., Ramírez, A., and Berthaud, J., 2003, The economic costs and benefits of a participatory project to conserve maize landraces on farms in Oaxaca, Mexico, Agric. Econ. 29:265–275.Google Scholar
  58. Smale, M., Just, R. E., and Leathers, H. D., 1994, Land allocation in HYV adoption models: An investigation of alternative explanations, Amer. J. Agri. Econ. 76:535–546.Google Scholar
  59. Sperling, L., Loevinsohn, M., and Ntambovura, B., 1993, Rethinking the farmer’s role in plant breeding: Local bean experts and on-extension selection in Rwanda, Exp. Agric. 29:509–519.Google Scholar
  60. Sthapit, B. R., Joshi, K. D., and Witcombe, J. R., 1996, Farmer participatory cultivar improvement. Ill: Participatory plant breeding, A case of high altitude rice from Nepal, Exp. Agric. 32:479–496.CrossRefGoogle Scholar
  61. Tapia, M. E., and Rosa, A., 1993, Seed fairs in the Andes: A strategy for local conservation of plant genetic resources, in: Cultivating Knowledge, W. de Boef, K. Amanor, and K. Wellard, with A. Bebbington, eds., Intermediate Technology Publications, London, pp. 111–118.Google Scholar
  62. Thiele, G., Gardiner, G., Torrez, R., and Gabriel, J., 1997, Farmer involvement in selecting new varieties: Potatoes in Bolivia, Exp. Agric. 33:275–290.CrossRefGoogle Scholar
  63. Tripp, R., 2000, Seed Provision and Agricultural Development: The Institutions of Rural Change, Overseas Development Institute, London; James Currey, Oxford; and Heinemann, Portsmouth, New Hampshire.Google Scholar
  64. Unnevehr, L., Duff, B., and Juliano, B. O., 1992, Consumer Demand for Rice Grain Quality, Terminal Report of IDRC Projects, National Grain Quality (Asia) and International Grain Quality Economics (Asia), IDRC, Ottawa, and IRRI, Los Banos, Laguna, Philippines.Google Scholar
  65. Van Dusen, E., 2000, In situ conservation of crop genetic resources in the Mexican Milpa System, Ph.D. Dissertation, University of California, Davis, California.Google Scholar
  66. vom Brocke, K., 2001, Effects of farmers’ seed management on performance, adaptation, and genetic diversity of pearl millet (Pennisetum glaucum [L.] R.Br.) populations in Rajasthan, India, Ph.D. Dissertation, University of Hohenheim, Germany.Google Scholar
  67. Weltzien, E., Smith, M. E., Meitzner, L. S., and Sperling, S., 2000, Technical and Institutional Issues in Participatory Plant Breeding—from the Perspective of Formal Plant Breeding: A Global Analysis of Issues, Results, and Current Experience. CGIAR Systemwide Program on Participatory Research and Gender Analysis for Technology Development and Institutional Innovation.Google Scholar
  68. Westgren, R. E., 1999, Delivering food safety, food quality, and sustainable production practices: The Label Rouge poultry system in France, Amer. J. Agric. Econ. 81(5): 1107–1111.Google Scholar
  69. Witcombe, J. R., and Joshi, A., 1995, The impact of farmer participatory research on the biodiversity of crops, in: Using Diversity: Enhancing and: Maintaining Genetic Resources On-Farm, L. Sperling and M. Loevinsohn, eds., Workshop Proceedings, International Development Research Center, New Delhi, India (June 19–21), pp. 87–101.Google Scholar
  70. Witcombe, J. R., Joshi, K. D., and Sthapit, B. R., 1996, Farmer participatory cultivar improvement. I: Varietal selection and breeding methods and their impact on biodiversity, Exp. Agric. 32:445–460.Google Scholar
  71. Zimmerer, K. S., 1996, Changing Fortunes: Biodiversity and Peasant Livelihood in the Peruvian Andes, University of California Press, Berkeley, Los Angeles, and London.Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  1. 1.International Plant Genetic Resources Institute and International Food Policy Research InstituteWashington, DCUSA

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