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Author: Loganathan R, Balasubramanian R, Mani K, Gurunathan S, Year: 2009 Title: * Productivity and Profitability Impact of Genetically Modified Crops - An Economic Analysis of Bt Cotton Cultivation in Tamil Nadu. Journal: Agricultural Economics Research Review>Volume 22, 331-340, Conference Number, 2009 Label: InRe Survey Adoption Rendement ImpactPesticide RavageurSecond Socioeconomic Abstract: Cotton production in India is at cross roads for the past few years. Till recently it was the hybrid that was at the focus but the era of genetically modified cotton has arrived. There has been lot of hue and cry regarding the commercialization of Bt cotton in India since Genetic Engineering Approval Committee (GEAC) has approved the use of Bt cotton seeds. This study has analysed the economic impact of biotechnologically engineered cotton cultivation in Tamil Nadu and the factors affecting the adoption of Bt cotton varieties. The study is based on a sample size of 76 Bt cotton farmers and 44 non-Bt cotton farmers from Salem and Perambalur districts. The results have indicated that only about one-third of the non-Bt cotton farmers are not aware about Bt cotton. Higher yield and higher profitability and lower pest problems have been cited as the important factors behind preference for Bt cotton. The less number of pesticide sprays in Bt cotton is likely to have lot of environmental and health benefits to both farmers and labourers. However, high cost of seeds and incidence of pests and diseases other than bollworm have been reported to be the major bottlenecks in Bt cotton cultivation. The study has made some suggestions to disseminate Bt cotton technology on a wider scale. URL: http://purl.umn.edu/57472 http://ageconsearch.umn.edu/bitstream/57472/2/1-Loganathan.pdf Author Address: Department of Agricultural Economics, Tamil Nadu Agricultural University, Coimbatore 641 003, Tamil Nadu, India XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Author: Londo JP, Bautista NS, Sagers CL, Lee EH, Watrud LS, Year: 2010 Title: * Glyphosate drift promotes changes in fitness and transgene gene flow in canola (Brassica napus) and hybrids. Journal: Ann Bot. 2010 Sep 18. [Epub ahead of print], Label: HeTo Dispersion Abstract: Background and Aims With the advent of transgenic crops, genetically modified, herbicide-resistant Brassica napus has become a model system for examining the risks and potential ecological consequences of escape of transgenes from cultivation into wild compatible species. Escaped transgenic feral B. napus and hybrids with compatible weedy species have been identified outside of agriculture and without the apparent selection for herbicide resistance. However, herbicide (glyphosate) exposure can extend beyond crop field boundaries, and a drift-level of herbicide could function as a selective agent contributing to increased persistence of transgenes in the environment. Methods The effects of a drift level (0·1 × the field application rate) of glyphosate herbicide and varied levels of plant competition were examined on plant fitness-associated traits and gene flow in a simulated field plot, common garden experiment. Plants included transgenic, glyphosate-resistant B. napus, its weedy ancestor B. rapa, and hybrid and advanced generations derived from them. Key Results The results of this experiment demonstrate reductions in reproductive fitness for nontransgenic genotypes and a contrasting increase in plant fitness for transgenic genotypes as a result of glyphosate-drift treatments. Results also suggest that a drift level of glyphosate spray may influence the movement of transgenes among transgenic crops and weeds and alter the processes of hybridization and introgression in non-agronomic habitats by impacting flowering phenology and pollen availability within the community. Conclusions The results of this study demonstrate the potential for persistence of glyphosate resistance transgenes in weedy plant communities due to the effect of glyphosate spray drift on plant fitness. Additionally, glyphosate drift has the potential to change the gene-flow dynamics between compatible transgenic crops and weeds, simultaneously reducing direct introgression into weedy species while contributing to an increase in the transgenic seed bank. Author Address: National Research Council Associate, 200 SW 35th Street, Corvallis, OR 97333, USA. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Author: Long Terri A, Tsukagoshi Hironaka, Busch Wolfgang, Lahner Brett, Salt David E, Benfey Philip N,