Biological resistance to bollworms of transgenic glandless cotton C020 and C022 with Bt+CpTI, and W039 with Bt were studies.

• 比较分析了2个转Bt+CPTI双价基因抗虫低酚棉品系C020、C022与1个转单价Bt基因抗虫低酚棉W039的生物学抗棉铃虫特性。