【摘要】 研究了温度对玉米蚜RhopalosiphummaidisFitch种群存活率、生殖率及内禀增长率的影响 ,同时测定了不同温度条件下玉米蚜种群的净增殖率、周限增长率、种群倍增时间及稳定年龄组配等种群参数。在 1 0℃和 3 5℃条件下 ,玉米蚜若蚜的死亡率较高 ,特别是 4龄若蚜 ;2 5℃最适宜玉米蚜的生长、发育和繁殖 ,其种群增长最快更多还原

【Abstract】 The effect of temperature on the survival rate, fecundity rate and intrinsic rate of the population increase of corn leaf aphid (Rhopalosiphum maidis Fitch) were studied. At the same time, the parameters induding net reproduction rate (R 0) , finite increase rate ( λ ), doubling increase time (t) and the stable age distribution of the population were calculated. The result showed that the mortality of immature aphid, especially the 4th instar was higher at 10℃ and 35℃. The optimal temperature of the growth, development and fecundity of the aphid was at 25℃.更多还原