暗期不同LED光转换处理对斜纹夜蛾 生长发育及繁殖的影响
Effects of exposure to different LED lights during the scotophase on the growth, development and reproduction of Spodoptera litura (Lepidoptera: Noctuidae)
钟春兰，朱地福，程禹朦，龚慧蓉，曹玲珍，黄少迪，饶嘉玲，徐鸿儒，涂小云
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DOI：10.7679/j.issn.2095-1353.2023.138
作者单位：江西师范大学生命科学学院
中文关键词：斜纹夜蛾；LED光转换；生长发育；繁殖
英文关键词：Spodoptera litura; LED light in turns; growth and development; reproduction
中文摘要：
【目的】 探明暗期不同LED光转换处理对斜纹夜蛾Spodoptera litura生长发育及繁殖的影响。【方法】 试验组斜纹夜蛾幼虫、蛹和成虫于暗期分别接受2种LED光转换处理，共计6个处理（分别是L1、L2、P1、P2、A1和A2），对照组在14L︰10D条件下培养，观察其生长发育和繁殖情况。【结果】 LED光转换处理对斜纹夜蛾化蛹率无显著影响（P>0.05）；P1处理组的成虫羽化率（66.2%，P<0.05）显著低于L1和L2处理组。L1处理组幼虫期（雌雄分别为15.8和16.4 d）和雌蛹期（9.8 d）显著缩短（P<0.05），P1和P2处理组雄蛹期（分别为11.9和11.8 d）则显著延长（P<0.05）；除L2处理组雌蛹外，其他试验组蛹重显著低于对照组（P<0.05）；P2处理组雄成虫寿命（7.5 d）显著短于对照组（12.2 d，P<0.05），A2处理组产卵前期（3.4 d）显著长于L2和A1组（P<0.05）。L1、P1和P2处理组单雌产卵量均显著低于对照组（1427.7粒）（P<0.05）。【结论】 暗期LED光转换处理对斜纹夜蛾生长发育和繁殖均有影响，且因虫态和LED光转换处理方式不同而异。
英文摘要：
[Objectives] To understand the effects of exposure to different LED lights on the growth, development and reproduction of Spodoptera litura. [Methods] Larvae, pupae and adults of S. litura were randomly assigned to different LED light treatment groups: L1, L2, P1, P2, A1 and A2, whereas those assigned to the control group were kept under a photoperiod of 14L⁚10D. [Results] Exposure to LED light had no significant effect on the pupation rate compared to the control group (P>0.05). The adult eclosion rate of the P1 group (66.2%) was significantly lower than that of the L1 and L2 groups (P<0.05). The L1 group had a significantly shorter larval (♀: 15.8 d, ♂: 16.4 d) and female pupal, periods (9.8 d, P<0.05) than the control group. The P1 and P2 groups had a significantly longer male pupal period (11.9 and 11.8 d, respectively, P<0.05). With the exception of female pupae in L2 group, all treatment groups had significantly lower pupal weights (P<0.05) than the control group. Adult male longevity in the P2 group (7.5 d) was significantly less than that of the control group (12.2 d, P<0.05), and the pre-oviposition period of the A2 group (3.4 d) was significantly longer than in the L2 and A1 groups (P<0.05). Females in the L1, P1 and P2 groups laid fewer eggs per female than those in the control group (P<0.05). [Conclusion] Exposure to different LED lights during the scotophase has significant effects on the growth, development and reproduction of S. litura. These effects vary with developmental stage and the type of LED light.