在5种不同温度条件下研究了大豆蚜有效积温、发育起点温度、繁殖力等生物学特性.结果表明,大豆蚜各虫态的发育历期随着温度的升高而显著缩短,若虫发育明显受到低温抑制.10℃下发育历期最长为22.08d,15、20、25、30℃分别为14.04,10.67,9.92和6.71d.相对低温同时也抑制大豆蚜繁殖能力,10℃下平均产仔量和日产仔量均为最小,分别为15.73头和1.23头/d.20和25℃下大豆蚜繁殖力较强,平均每天产仔量分别为27.87和27.36头.通过直线回归分析,得出大豆蚜1龄若虫发育起点温度为2.026 8℃,有效积温为38.421 6日度,大豆蚜世代发育的起点温度为1.658 7℃,有效积温为202.787 9日度.%The biological characteristics of Aphis glyicines Matsumura including available accumulation temperature, starting development point and fecundity etc, were studied in 5 different temperatures. The results showed that increased temperature shortened developmental duration significantly and the low temperature suppressed development of nymph. The longest developmental duration was 22.08 days in 10℃. In 15℃, 20℃, 25℃ and 30℃ the developmental duration were 14.04, 10.67, 9.92 and 6.71 days respectively. Low temperature also suppressed the reproduction of Aphis glyicines Matsumura. The least average and daily fecundity were 15.73 and 1.23 at 10℃, and the higher average fecundity were 27.87 and 27.36 at 20℃ and 25℃ respectively. Linear equation regression analysis showed that the temperature of the starting development point of the 1st instar was 2. 026 8℃,the available accumulation temperature was 38. 421 6 degree - days. The figures of which for the total period were 1.658 7℃ and 202. 787 9 degree - days.
展开▼
