Genetically engineered cotton and corn produce a toxin that kills caterpillar larvae and other pests, but a new study shows that resistance to this toxin could be spreading among one species of caterpillar. Fanners worldwide plant more than 400 million acres of these transgenic crops each year. ...
Implementation and impact of Bt cotton in China. This paper describes the implementation of Bacillus thuringiensis (Bt) cotton in China to control cotton bollworm [Helicoverpa armigera] and pink bollworm ... K Wu 被引量: 0发表: 2004年 Mirid Bug Outbreaks in Multiple Crops Correlated with Wide-...
& Qaim, M. Impact of Bt cotton on pesticide poisoning in smallholder agriculture: a panel data analysis. Ecol. Econ. 70, 2105–2113 (2011). Article Google Scholar Ali, A. & Abdulai, A. The adoption of genetically modified cotton and poverty reduction in Pakistan. J. Agric. Econ. 61...
Naranjo, S. E. Impacts of Bt crops on non-target invertebrates and insecticide use pattern.CAB Reviews: Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources11, 1-23 (2009). doi: 10.1079/PAVSNNR20094011 (link) O'Callaghan, M.et al.Effects of plants genetically modifi...
Genetically modified (GM) plants are the center of an increasingly rancorous debate about the value of agricultural biotechnology. The champions of agricultural biotechnology see it as a tool to help solve problems related to hunger and excessive pestici
Hundreds of studies on environmental effects of genetically modified (GM) crops became available over the past 25 years. For maize producing insecticidal proteins from Bacillus thuringiensis (Bt), potential adverse effects on non-target organisms ar
The short-run benefit of insect-resistant Bacillus thuringiensis (Bt) crops has been well documented, but its sustainability in the long run has not been well studied. On the other hand, pest resistance build-up and secondary pest outbreaks have caused concern regarding the sustainability of this...
Transgenic expressing insecticidal proteins from the bacterium, (Bt), are revolutionizing agriculture. Bt, which had limited use as a foliar , has become a major because genes that produce Bt toxins have been engineered into major crops grown on 11.4 million ha worldwide in 2000. Based on the...
Given the existing prob-lems of non-target insect outbreaks due to commercial applications of Bt crops, further studies on monitoring the efficacies of insect-resistant GM crops are necessary to prevent outbreaks of non-target pests needed for sustainable agriculture. Key words: insect-resistant ...
crops to control target pests Maize ubi1 intron(-) 转基因玉米中 Cry1Ah 蛋白表达量提高 20%,间接增强转基因作物对靶标害虫的防控能力 [118] The protein expression of Cry1Ah in transgenic maize increased by 20%, which indirectly enhanced the ability of transgenic crops to control target pests ...