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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 11 (Page no: 177)

Determinants of cereal diversity in villages of northern Ethiopia.

This chapter compares factors explaining the inter- (interspecific) and intracrop (infraspecific diversity) of cereals grown by villages in Peasant Associations (PAs) of the northern Ethiopian highlands of Amhara and Tigray, building on the household-level analysis presented for the same sites in Chapter 6 [Explaining the diversity of cereal crops and varieties grown on household farms in the highlands of northern Ethiopia by S. Benin, M. Smale and J. Pender, pp. 78-96]. The village is the smallest social unit for policy interventions targeted at sustainable management of crop biodiversity on farms. Villages have the capacity to govern the utilization and conservation of genetic resources, reconciling private and social objectives. Econometric analysis indicates that a combination of factors related to the agroecology of a village, proximity to markets and the characteristics of households and farms within the village influence the level of inter- and intracrop diversity of cereals. Determinants differ between Amhara and Tigray regions. There are no apparent trade-offs between policies seeking to enhance the richness or the equitability among cereal crops or within any single crop grown in villages. Trade-offs may occur among crops, however. Growing modern varieties of maize has a positive effect on the evenness of maize types grown within communities, although modern varieties of wheat have no observable effect. At the village level, markets appear to introduce cereal crop diversity in some cases, while in others, they reduce it. Ambiguity of market effects could reflect local demand relative to local seed supply, or different phases of seed and product market development.

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: 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: 14 (Page no: 233) Seed supply and the on-farm demand for diversity: a case study from eastern Ethiopia. Author(s): Lipper, L. Cavatassi, R. Winters, P.
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
  • International Livestock Research Institute (ILRI), PO Box 5689, Addis Ababa, Ethiopia.
  • Year of Publication
  • 2005
  • ISBN
  • 9780851990835
  • Record Number
  • 20063061424