不同温度与寄主条件下桃蚜生命表的研究  

Life table of Myzus persicae under different temperature and hest plant conditions

作　　者：赵惠燕[1] 汪世泽[1] 袁锋[1] 董应才[1] 张改生[1] 

机构地区：[1]西北农业大学植保系

出　　处：《应用生态学报》1995年第S1期83-87,共5页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金

摘　　要：在寄主、温度对桃蚜生物学特性影响研究的基础上，研究了不同温度和寄主对桃蚜生命表的影响．结果表明，桃蚜生长发育最适温度均为２８℃，致死温度为３３℃．寄主对桃蚜最适内禀增长力（ｒ＇ｍ）有显著影响，不同寄主间２组合的蚜虫最适温度分别为２０．６６和２６．４４℃，同一寄主间为２４．４３和２８．９９℃；随着温度的升高，种群加倍时间呈负指数曲线下降．改换寄主后的蚜虫对低温条件更敏感．Based on the studies of the influence of host plant on biological characters of Myzus persicae, the effect of different temperature and host plant on the life table of the aphid isstudied. The results show that the optimum development and lethal temperatures for theaphid are respectively 28 and 33℃. The effect of the host plant on the intrinsic increasingcapacity (rm' ) of the aphid is significant. The optimum temperature for aphid developmentin two combinations of different hosts is respectively 20. 66 and 26. 44℃, but 24. 43 and28. 99℃ in those of same host. With the increase of temperature, the time needed for,doubling the population is shortened in negative index. The aphid translated from originalhost to other ones is more susceptible at low temperatures.

关 键 词：桃蚜 生命表 进化 寄主 温度 

分 类 号：Q968.1[生物学—昆虫学]