Journal
WORLD DEVELOPMENT
Volume 32, Issue 1, Pages 159-172Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.worlddev.2003.04.007
Keywords
crop diversity; genetic erosion; interventions; on-farm conservation; Mexico; Latin America
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Interest is increasing worldwide in on-farm conservation as a component of a strategy to conserve crop genetic resources. This may require outside support to small-scale farmers in areas of crop diversity. This paper argues that crop diversity maintained by farming households results from the interplay between a demand and a supply for this diversity. Interventions to support on-farm conservation can be conceptualized by the way they influence these two factors. Demand interventions should increase the value of crop diversity for farmers or decrease the farm-level opportunity costs of maintaining it, while supply interventions should decrease the costs of accessing diversity. (C) 2003 Elsevier Ltd. All rights reserved.
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