【摘要】 为了明确短时高温暴露对Q型烟粉虱成虫存活及生殖适应性的影响,将Q型烟粉虱成虫在不同温度(37、39、41、43、45℃)下暴露1h后研究了成虫存活率、产卵量及F1代存活率的变化。结果表明,Q型烟粉虱在37~45℃范围内暴露1h后,成虫存活率由100%下降到21.4%,41℃及以上高温对Q型烟粉虱成虫存活率有显著影响;高温暴露后Q型烟粉虱成虫产卵量与对照相比没有显著差异,但F1代的存活率随着暴露温度的升高由71.3%下降到31.3%,在41℃及以上高温下暴露1h后Q型烟粉虱F1的存活率显著下降。Q型烟粉虱对高温有较强的适应性,这有利于其在在高温季节的发生。更多还原

【Abstract】 The effects of brief exposure to high temperature on survival and fecundity of Bemisia tabaci Q-biotype, (Homoptera: Aleyrodidae) were studied in the laborary condition to understand occasional changes in the biological characteristic of whitefly species encountered high temperature stress. The survival rate, reproduction and survival rate from egg to adult of F 1 progeny of B. tabaci Q-biotype were evaluated after the adults were exposed to five degrees of temperature, 37, 39, 41, 43, 45℃, for 1 hour. The survival rates of adults of B. tabaci Q-biotype decreased with the increase of temperature. Within the range of 37℃ to 45℃ , the survival rate of B. tabaci Q-Biotype adults decreased from 100% to 21.4%,. Adult survival was significantly affected when they were exposed at 41℃ or higher temperature. Female oviposition was not significantly different when adults were heat-exposured at all temperatures. However, the total survival rate from egg to adult of F 1 progeny that produced by heated adults of B. tabaci Q-biotype decreased from 71.3% to 31.3%.The percentages of F 1 offspring developing to adults were significantly affected when temperature increased to 41℃. The adults of B. tabaci Q-biotype has strong adaptability to high temperature, which could facilitate the population of B. tabaci Q-Biotype development in hot seasons更多还原