Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution
Variety 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 arti...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2008
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/162371 |
| _version_ | 1855537823714639872 |
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| author | Smale, Melinda Singh, Joginder di Falco, Salvatore Zambrano, Patricia |
| author_browse | Singh, Joginder Smale, Melinda Zambrano, Patricia di Falco, Salvatore |
| author_facet | Smale, Melinda Singh, Joginder di Falco, Salvatore Zambrano, Patricia |
| author_sort | Smale, Melinda |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Variety 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. |
| format | Journal Article |
| id | CGSpace162371 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1623712025-02-19T14:08:01Z Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution Smale, Melinda Singh, Joginder di Falco, Salvatore Zambrano, Patricia genetic diversity biodiversity plant breeding productivity wheat genetic resources Variety 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. 2008-12 2024-11-21T10:02:38Z 2024-11-21T10:02:38Z Journal Article https://hdl.handle.net/10568/162371 en Limited Access Wiley Smale, 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 |
| spellingShingle | genetic diversity biodiversity plant breeding productivity wheat genetic resources Smale, Melinda Singh, Joginder di Falco, Salvatore Zambrano, Patricia Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution |
| title | Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution |
| title_full | Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution |
| title_fullStr | Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution |
| title_full_unstemmed | Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution |
| title_short | Wheat breeding, productivity and slow variety change: Evidence from the Punjab of India after the Green Revolution |
| title_sort | wheat breeding productivity and slow variety change evidence from the punjab of india after the green revolution |
| topic | genetic diversity biodiversity plant breeding productivity wheat genetic resources |
| url | https://hdl.handle.net/10568/162371 |
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