关键词: 芸豆, 豆蚜, 生命表, 消化酶, 解毒酶

Abstract: In order to explore the effects of kidney bean resistant and susceptible varieties on the growth and development of Aphis craccivora，the activities of digestive enzymes（lipase，protease，α‑amylase）and detoxification enzymes（glutathione‑S‑transferase，carboxylesterase，acetylcholinesterase）in the body of A.craccivora fed on kidney bean resistant and susceptible varieties were determined，and the life table of A.craccivora population continuously reproducing for three generations on kidney bean resistant and susceptible varieties was constructed.The results showed that the activities of three digestive enzymes，carboxylesterase and acetylcholinesterase in A.craccivora after feeding on susceptible kidney bean varieties were significantly higher than those of A. craccivora after feeding on resistant varieties，but the activity of glutathione‑S‑transferase in A.craccivora after feeding on resistant varieties was significantly higher than that on susceptible varieties，and the increase was 12.9%.The survival rate of F₂ and F₃ generations of A.craccivora parasitized on aphid‑resistant varieties decreased compared with F₁ generation，and the number of A.craccivora gradually decreased，while those on the susceptible varieties were the opposite.The net value‑added rate（R₀）of the F₃ generation on the susceptible variety was 28.60，while that on the resistant variety was only 11.13，and there was a significant difference.In conclusion，after feeding on the insect‑resistant kidney bean variety，the activities of digestive enzymes，carboxylesterase and acetylcholinesterase in the bodies of A.craccivora decreased，while the activity of glutathione‑S‑transferase increased，and the survival rate of their offspring and the number of aphids produced decreased.However，the opposite was true when they fed on the susceptible kidney bean varieties.

Key words: Kidney bean, Aphis craccivora, Life table, Digestive enzymes, Detoxifying enzymes