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Title: Identifying Farmers’ Derived Demand to Maintain Sorghum Genetic Diversity In Tehuldere Woreda, South Wollo Zone, Ethiopia
Authors: Chalachew, Temesgen
Advisors: Dr. Mahmud Yesuf
Keywords: crop genetic resource
derived demand
on-farm conservation
in situ
ex situ
survival strategy
Poisson regression
Tobit regression model
Copyright: 2007
Date Added: 22-Apr-2008
Publisher: Addis Ababa University
Abstract: To make operational on-farm crop genetic conservation strategy in Ethiopia, we have to understand the factors that determine farmers’ for managing portfolios of crop varieties. Identifying farmers’ derived demand for sorghum varieties and drawing policy implication for on-farm genetic resource conservation in Ethiopia is the main objective of this paper. Farmers’ preferences for varieties conditioned on different preference parameters are the theoretical basis for this study. Count index and Shannon index are used to measure the onfarm sorghum genetic diversity of the studied area. Poisson and Tobit regression models are estimated using a rural household survey data collected from 205 households in Tehuledere Woreda, Amhara National Regional State of Ethiopia. The findings of empirical estimation shows that family size of the household, land characteristics, concern factors, number of oxen ownership and access to cash crops are promoting factors for variety richness of sorghum genetic diversity in farm household. On the contrary, the most important factors detaching the link between farmers survival strategy and sorghum genetic diversity are access to extension services, experience on using improved varieties, access to road infrastructure and access to market services. The results imply that on-farm crop genetic resource conservation will be negatively correlated to the over-all agricultural development in a specific region. Therefore, there is a need for flexible incentive structures to maintain CGRs diversity at a social optimum and to off-set the negative effect of development interventions.
URI: http://hdl.handle.net/123456789/819
Appears in:Thesis - Economics

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