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室内研究了在同一温度(25℃)3、种不同光照条件(8L∶16D、12L∶12D、16L∶8D)下饲养的菜蛾盘绒茧蜂,其后代在4种不同温度(13、15、17、20℃)和2种光周期(8L∶16D、11L∶13D)下饲养的滞育率变化情况。结果表明:母代的光照经历、子代饲养温度和光照周期这3个滞育诱导因素都会显著地影响滞育率。母代的光周期经历与子代诱导滞育的温度或光周期之间、子代诱导滞育的温度与光周期之间均存在交互作用,但3个因素间的交互作用不显著。母代在长日照条件下饲养可以降低子代诱导滞育的临界温度。子代在较低温度下饲养,母代经历的光周期对子代滞育的发生影响不大,甚至没有影响;但当子代在相对较高温度下饲养,母代经历的光周期对子代滞育发生的影响十分明显。
In the present study, Plutella xylostella fed on 3, 8 different illumination conditions (8L: 16D, 12L: 12D, 16L: 8D) at the same temperature (25 ℃) , 17, 20 ℃) and two photoperiods (8L: 16D, 11L: 13D). The results showed that the three diapause inducing factors of mother generation, diapause temperature and photoperiodicity of seed generation all significantly affected the diapause rate. There was an interaction between the photoperiod of the mother generation and the temperature or photoperiod induced by diapause in offspring, and the temperature and photoperiod induced by diapause in offspring. However, the interaction between the three factors was not significant. Breeding of maternal generation under long-day conditions can reduce the critical temperature for progeny-induced diapause. The offspring was kept at lower temperature and the photoperiod experienced by the mother had little or no effect on the diapause of the offspring. However, when the offspring were reared at relatively high temperature, On behalf of the impact of diapause is very obvious.