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Estimating the economic impact of breeding nonspecific resistance to leaf rust in modern bread wheat

Author: Smale, M.
Author: Singh, R.P.
Author: Sayre, K.D.
Author: Pingali, P.L.
Author: Rajaram, S.
Author: Dubin, H.J.
Year: 1998
ISSN: 0191-2917
ISSN: 1943-7692
URI: http://hdl.handle.net/10883/2062
Abstract: Breeding for resistance to rust diseases in wheat is an example of productivity maintenance research. Productivity maintenance research is necessary to avoid contractions in the wheat supply curve that result from changes in the biological or physical environment. In this study, the benefits of incorporating nonspecific resistance to leaf rust caused by Puccinia recondita into modern bread wheats (Triticum aestivum) have been estimated using data on resistance genes identified in cultivars, trial data, and area sown to cltivar in the Yaqui Valley, Sonora State, Mexico. In the most pessimistic scenario, the gross benefits generated in the Yaqui Valley from 1970 to 1990 were 17 million U.S. dollars (in 1994 real terms). Even when costs were overstated and benefits were understated, the internal rate of return on capital invested was 13%, well within the range recommended for use in project evaluation by the World Bank. Substantial economic benefits likely are associated with development of nonspecific resistance in many wheat-producing areas of developing countries where farmers change cultivars slowly because of delays in cultivar release, incomplete seed markets, and economic factors related to adoption or where disease pressure is heavy and the costs of treating disease outbreaks is high.
Format: PDF
Language: English
Publisher: American Phytopathological Society (APS)
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Region: Global
Pages: 1055-1061
Issue: 9
Volume: 82
DOI: 10.1094/PDIS.1998.82.9.1055
Keywords: Bread Wheat
Agrovoc: SOFT WHEAT
Agrovoc: RUSTS
Agrovoc: PLANT DISEASES
Agrovoc: CROP LOSSES
Agrovoc: DISEASE RESISTANCE
Agrovoc: PLANT BREEDING
Agrovoc: PUCCINIA RECONDITA
Journal: Plant Disease


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This item appears in the following Collection(s)

  • Socioeconomics
    Including topics such as farming systems, markets, impact & targeting, innovations, and GIS
  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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