氮气及温度、湿度条件对锈赤扁谷盗卵发育的影响

The Influences of Nitrogen,Temperature and Relative Humidity on Egg Development of Rusty Grain Beetle,Cryptolestes Ferrugineus( Stephens)

在3种氮气浓度（78.8%，83.0%，88.0%）、3种相对湿度（69.6% RH,75.1%RH,83.7%RH）及5种温度（19.9、25.0、29.3、34.7、39.8 ℃）组合条件下，研究了锈赤扁谷盗卵的孵化情况。结果表明：发育历期为2.2～18.9 d，发育起点温度为13.8～14.3 ℃，最高临界发育温度为40.4～43.0 ℃，有效积温为61.6～115.6 日度。发育历期、发育速率与温度之间分别是“指数”型及“S”型曲线关系。氮气及温、湿度因素相互作用影响了卵的孵化，88.0%的氮气对孵化有显著的抑制效应，温度（〉 30.0 ℃）及湿度（〉 69.6% RH）强化了氮气对孵化的抑制效应。

Egg eclosion of Cryptolestes ferrugineus （Stephens） was investigated under the combined conditions of nitrogen concentrations （78.8%, 83.0% and 88.0%） , temperatures （19.9、 25.0、 29.3、 34.7 、39.8 ℃） and relative humidity（69.6% RH, 75.1% RH, 83.7% RH）. The results showed that the development period, the development zero, the maximum development temperature and the effective accumulated temperature were 2.2～18.9 d、13.8～14.3 ℃、40.4～43.0 ℃ and 61.6～115.6 day-degree, respectively. The curves between the development period, development rate and the temperatures are respective ＇index＇ and ＇S＇-shaped pattern. It is concluded that the interaction of nitrogen, temperature and humidity will affect egg eclosion;88% nitrogen has significant inhibitory effects on the eclosion;Temperature （〉30.0 ℃） and humidity （〉 69.6% RH） enhance the inhibitory effect of nitrogen on egg eclosion.