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研究了温度对玉米蚜种群存活率、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的种群净增殖率、周限增长率、种群倍增时间及稳定年龄组配等种群参数。结果表明 ,在 10 ,35℃条件下 ,玉米蚜若蚜的死亡率较高 ,特别是 4龄若蚜 ;随着温度的升高 ,成蚜的存活率降低 ,产仔期变短 ,内禀增长率和周限增长率逐渐增大 ,世代平均发育历期和种群倍增时间逐渐缩短 ;15～ 2 5℃时的产仔量显著高于 10和 30℃。 2 5℃最适宜玉米蚜的生长、发育和繁殖 ,其种群增长最快
The effects of temperature on the survival rate, reproductive rate and intrinsic rate of increase of population of Aphididae were studied. At the same time, the net population growth rate, weekly growth rate, population doubling time and stable age grouping population were determined at different temperatures parameter. The results showed that under the conditions of 10, 35 ℃, the death rate of the aphids was higher, especially the 4th instar nymphs. With the increase of temperature, the survival rate of the aphids decreased and the litter size became shorter. The growth rate and the growth rate of the growth rate gradually increased, the average developmental age of the generation and the population doubling time gradually shortened; litter size at 15 ~ 25 ℃ was significantly higher than 10 and 30 ℃. The optimum temperature for 25 ℃ is the growth, development and reproduction of the maize aphid, and its population is the fastest growing