论文部分内容阅读
将Q型烟粉虱种群按其生长发育顺序划分为卵、低龄若虫、高龄若虫、成虫4个阶段,把各阶段的作用因子划分为相对独立的状态。通过对Q型烟粉虱自然种群数量的调查和对实验种群数量的观察,对实验种群的自然种群生命表进行了研究。研究表明,Q型烟粉虱的自然种群趋势指数(I)为28.22,说明下一代种群数量将为当代种群数量的28.22倍,世代总成活率为11%。
The population of Q-biotype Bemisia tabaci was divided into four stages according to the order of their growth and development: eggs, young nymphs, nymphs and adults, and the factors of each stage were divided into relatively independent states. Through the investigation of the natural populations of Q-biotype Bemisia tabaci and observation of the number of experimental populations, the natural population life table of experimental populations was studied. The results showed that the natural population trend index (I) of Q-biotype Bemisia tabaci was 28.22, indicating that the population of the next generation will be 28.22 times of the current population and the total survival rate of the generation is 11%.