Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution

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dc.creatorSmale, Melinda
dc.creatorSingh, Joginder
dc.creatordi Falco, Salvatore
dc.creatorZambrano, Patricia
dc.date2008-12
dc.date2024-11-21T10:02:38Z
dc.date2024-11-21T10:02:38Z
dc.date.accessioned2026-06-27T15:37:32Z
dc.descriptionVariety change and genetic diversity are important means of combating crop losses from pests and diseases in modern agricultural systems. Since the Green Revolution, genetic diversity among wheat varieties released in India has increased but variety change on farms continues to be slow. In this article, we define and summarise indices of variety change and genetic diversity for the wheat varieties released and grown in Indian Punjab during the post‐Green Revolution period. We evaluate the effect of each index on technical efficiency with a Cobb‐Douglas yield model after testing for exogeneity. Findings support the hypothesis that slow variety change has offset the positive productivity effects of diversifying the genetic base in wheat breeding during the post‐Green Revolution period. Policies that speed the rate of variety change and contribute to a more equitable spatial distribution of modern varieties could support wheat productivity in the Punjab of India, reinforcing plant breeding successes.
dc.identifierhttps://hdl.handle.net/10568/162371
dc.identifier.urihttp://hdl.handle.net/123456789/109808
dc.languageen
dc.publisherWiley
dc.rightsLimited Access
dc.sourceSmale, Melinda; Singh, Joginder; Di Falco, Salvatore; Zambrano, Patricia. 2008. Wheat breeding, productivity and slow variety change. Australian Journal of Agricultural and Resource Economics Australian Journal of Agricultural and Resource Economics 52(4): 419-432
dc.subjectgenetic diversity
dc.subjectbiodiversity
dc.subjectplant breeding
dc.subjectproductivity
dc.subjectwheat
dc.subjectgenetic resources
dc.titleWheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution
dc.typeJournal Article

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Instituto Internacional de Investigación sobre Políticas Alimentarias (IFPRI)