Journal
AMERICAN JOURNAL OF AGRICULTURAL ECONOMICS
Volume 82, Issue 4, Pages 812-827Publisher
OXFORD UNIV PRESS INC
DOI: 10.1111/0002-9092.00083
Keywords
gene bank management; valuation of genetic resources; optimal search; economics of agricultural research
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A theoretical model is developed and applied to the search for disease and pest resistance in ex situ collections of wheat genetic resources, employing actual data on frequency distributions, disease losses, and search costs. Experiments developed from case studies clarify several misperceptions about the value of gene banks and their utilization by breeders. The observation that wheat breeders use gene banks rarely does not imply that marginal accessions have low value. High costs of transferring genes with conventional breeding techniques mean that it may be efficient to store certain categories of genetic resources (such as landraces) unused for many years.
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