Title	Yield effects of genetically modified crops in developing countries
Authors	Qaim M Zilberman D
Year	2003
DOI/WEB/URL	http://dx.doi.org/10.1126/science.1080609
Link to Full-text	http://www.sciencemag.org/cgi/content/full/299/5608/900
Keywords	Agbiotech Agricultural biotechnology Asia Bacillus thuringiensis (Bt) Bt Cotton Crop biotech Damage control production function Developing countries Farm survey analysis Genetically modified crops GM crops India Insect resistance Madhya Pradesh Maharashtra Impacts on Farmers Tamil Nadu Trial data analysis Yield model
Journal	Science
Volume	299
Issue	5608
Start Page	900
End Page	902
Citation	Qaim, M., and D. Zilberman. 2003. Yield effects of genetically modified crops in developing countries. Science 299 (5608): 900-902.
Abstract	Onfarm field trials carried out with Bacillus thuringiensis (Bt) cotton in different states of India show that the technology substantially reduces pest damage and increases yields. The yield gains are much higher than what has been reported for other countries where genetically modified crops were used mostly to replace and enhance chemical pest control. In many developing countries, small-scale farmers especially suffer big pest-related yield losses because of technical and economic constraints. Pest-resistant genetically modified crops can contribute to increased yields and agricultural growth in those situations, as the case of Bt cotton in India demonstrates.

Yield effects of genetically modified crops in developing countries

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