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 。
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℃.
出处
《昆虫知识》
CSCD
北大核心
2002年第4期277-280,共4页
Entomological Knowledge
基金
陕西省农业厅 2 0 0 1~ 2 0 0 2农业技术重点推广项目
关键词
温度
玉米蚜
种群增长
corn leaf aphid(Rhopalosiphum maidis Fitch), temperature, population increase
