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Farmers' management of rice varietal diversity in the mid-hills of Nepal: implications for on-farm conservation and crop improvement

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Rana, R. B., Garforth, C. and Sthapit, B. R. (2009) Farmers' management of rice varietal diversity in the mid-hills of Nepal: implications for on-farm conservation and crop improvement. Plant Genetic Resource: Characterization and Utilization, 7 (1). pp. 50-62. ISSN 1479-263X

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To link to this article DOI: 10.1017/S1479262108048259

Abstract/Summary

Season-long monitoring of on-farm rice (Oryza sativa, L.) plots in Nepal explored farmers' decision-making process on the deployment of varieties to agroecosystems, application of production inputs to varieties, agronomic practices and relationship between economic return and area planted per variety. Farmers deploy varieties [landraces (LRs) and modern varieties (MVs)] to agroecosystems based on their understanding of characteristics of varieties and agroecosystems, and the interaction between them. In marginal growing conditions, LRs can compete with MVs. Within an agroecosystem, economic return and area planted to varieties have positive relationship, but this is not so between agroecosystems. LRs are very diverse on agronomic and economic traits; therefore, they cannot be rejected a priori as inferior materials without proper evaluation. LRs have to be evaluated for useful traits and utilized in breeding programmes to generate farmer-preferred materials for marginal environments and for their conservation on-farm.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development > Economic and Social Sciences Division > Livelihoods Research
ID Code:24796
Uncontrolled Keywords:crop improvement; farmer’s decision making; intensive data plots; landrace; on-farm conservation; rice; Nepal
Publisher:Cambridge University Press

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