转基因抗虫棉对不同生态环境的适应性研究

选用7个转基因抗虫棉品种WH₁、WH₂ 、WH₃ 、WH₄ 、WH₅、WH₆、BG₂ 和一个常规种泗棉 3号 (CK),在10个生态环境不同的试验点,对它们的抗虫特性和产量性状的适应性进行了研究.结果表明,转基因抗虫棉对棉铃虫 (Helicoverpa armigera)、棉红铃虫 (Pectinophora gossypiella)抗性很强,并且不受生态环境差异的影响,稳定程度较高.但其产量性状受环境影响较大,品种和试验点的互作效应显著.与对照相比,WH₆和BG₂ 的抗虫性和丰产性较好,可以在生产上应用.

Adaptation of transgenic strains of insect-resistance cotton to different ecological environments

Seven transgenic strains of insect resistance cotton,WH\-1,WH\-2,WH\-3,WH\-4,WH\-5,WH\-6 and BG\-2,and one common strain Simian 3 (CK) were selected to investigate their adaptation to insect resistance and yield trait at 10 different sites.The results show that all transgenic strains had a strong resistance to bollworm( Helicoverpa armigera) and pink bollworm ( Pectinophora gossypiella) ,with a high stability and no difference in 10 sites,but the yield trait was significantly influenced by environmental factors.The interaction between strains and sites was significant. In comparison with CK,WH\-6 and BG\-2 had a good insect resistance and high fiber yield,and could be applied in practice.