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通过室内喂虫实验和大田抗虫实验对转基因抗虫油菜的菜青虫抗性进行了研究。实验结果表明 :转Bt杀虫蛋白基因抗虫油菜新品系对菜青虫幼虫具有较强的抗性 ,在室内喂虫实验中虫子的死亡率高达 94 40 % ,而对照仅为 15 0 0 % ;在大田中虫子死亡率达 46 5 9% ,而对照仅为 2 1 2 5 %。
The resistance to Pieris rapae in transgenic insect-resistant rape was studied by indoor feeding experiments and field-resistant insect experiments. The experimental results showed that the new Bt insecticidal protein gene resistant rapeseed lines were highly resistant to the larvae of cabbage caterpillars. The mortality rate of insects was up to 94 40% while the control was only 150% in the indoor feeding insects experiment. The mortality rate of worms in the field was 46 5 9%, while the control was only 21 52%.