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CABI Book Chapter

Valuing crop biodiversity: on-farm genetic resources and economic change.

Book cover for Valuing crop biodiversity: on-farm genetic resources and economic change.

Description

In agricultural systems, diversity of crops and varieties is essential to combat the risks farmers face from pests, diseases and variations in climate. Crop biodiversity also underpins the range of dietary needs and services that consumers demand. There is growing concern, however, about declining diversity of crop genetic resources on farms, associated with social and economic change. This book c...

Metrics

Chapter 14 (Page no: 233)

Seed supply and the on-farm demand for diversity: a case study from eastern Ethiopia.

This chapter uses a household model similar to those used in Part III of this book to analyse the relationship between seed supply and intercrop diversity (between crop species) on household farms, based on an assessment of the impact of a seed supply intervention at the household level in Ethiopia. A detailed description of the seed system for two major crops (sorghum and wheat) is used to support and explain the results. Econometric analysis shows that participation in a programme implemented by a non-governmental organization (the Hararghe Catholic Secretariat (HCS)) was positively related to one index of intercrop diversity and did not negatively affect other indices. Other information about the characteristics of the wheat seed system, particularly in relation to the sorghum seed system, reinforces this finding. Key characteristics are the relative availability of local versus improved genetic materials and the types of services they provide to farmers, given farmers' demand for genetic services. Farmers' demand for genetic services in turn reflects their specific consumption and production situations. It is argued that the nature of the seed supply intervention, such as the crop selected and the type of intervention, is an important determinant of programme impact on intercrop diversity.

Other chapters from this book

Chapter: 1 (Page no: 1) Concepts, metrics and plan of the book. Author(s): Smale, M.
Chapter: 2 (Page no: 17) Crop valuation and farmer response to change: implications for in situ conservation of maize in Mexico. Author(s): Dyer, G. A.
Chapter: 3 (Page no: 32) Farmer demand for agricultural biodiversity in Hungary's transition economy: a choice experiment approach. Author(s): Birol, E. Kontoleon, A. Smale, M.
Chapter: 4 (Page no: 48) An attribute-based index of coffee diversity and implications for on-farm conservation in Ethiopia. Author(s): Wale, E. Mburu, J.
Chapter: 5 (Page no: 63) Missing markets, migration and crop biodiversity in the milpa system of Mexico: a household-farm model. Author(s): Dusen, M. E. van
Chapter: 6 (Page no: 78) Explaining the diversity of cereal crops and varieties grown on household farms in the highlands of northern Ethiopia. Author(s): Benin, S. Smale, M. Pender, J.
Chapter: 7 (Page no: 97) Demand for cultivar attributes and the biodiversity of bananas on farms in Uganda. Author(s): Edmeades, S. Smale, M. Karamura, D.
Chapter: 8 (Page no: 119) Explaining farmer demand for agricultural biodiversity in Hungary’s transition economy. Author(s): Birol, E. Smale, M. Gyovai, Á.
Chapter: 9 (Page no: 146) Rural development and the diversity of potatoes on farms in Cajamarca, Peru. Author(s): Winters, P. Hintze, L. H. Ortiz, O.
Chapter: 10 (Page no: 162) Managing rice biodiversity on farms: the choices of farmers and breeders in Nepal. Author(s): Gauchan, D. Smale, M. Maxted, N. Cole, M.
Chapter: 11 (Page no: 177) Determinants of cereal diversity in villages of northern Ethiopia. Author(s): Gebremedhin, B. Smale, M. Pender, J.
Chapter: 12 (Page no: 192) Social institutions and seed systems: the diversity of fruits and nuts in Uzbekistan. Author(s): Dusen, M. E. van Dennis, E. Ilyasov, J. Lee, M. Treshkin, S. Smale, M.
Chapter: 13 (Page no: 211) Community seed systems and the biodiversity of millet crops in southern India. Author(s): Nagarajan, L. Smale, M.
Chapter: 15 (Page no: 251) Institutions, stakeholders and the management of crop biodiversity on Hungarian family farms. Author(s): Bela, G. Balázs, B. Pataki, G.
Chapter: 16 (Page no: 270) Cooperatives, wheat diversity and the crop productivity in southern Italy. Author(s): Falco, S. di Perrings, C.
Chapter: 17 (Page no: 280) Scope, limitations and future directions. Author(s): Smale, M. Lipper, L. Koundouri, P.
Chapter: 18 (Page no: 296) An annotated bibliography of applied economics studies about crop biodiversity in situ (on farms). Author(s): Zambrano, P. Smale, M.

Chapter details

  • Author Affiliation
  • Economic and Social Department, Agriculture and Economic Development Analysis Division, Food and Agriculture Organization of the United Nations, Viale della Terme di Caracalla, 00100 Rome, Italy.
  • Year of Publication
  • 2005
  • ISBN
  • 9780851990835
  • Record Number
  • 20063061427