摘要
【目的】探明暗期5 h不同波长LED光照对斜纹夜蛾Spodoptera litura生长发育及繁殖的影响。【方法】处理组斜纹夜蛾各虫态于暗期分别接受5 h不同波长LED灯[红(620-625 nm)、黄(580-585 nm)、蓝(465-467 nm)、绿(520-523 nm)和白色(复合光)]光照,即光周期分别为14L∶5R∶5D,14L∶5Y∶5D,14L∶5B∶5D,14L∶5G∶5D和14L∶5W∶5D,对照组则在光周期为14L∶10D条件下培养,观测计算卵孵化率、化蛹率、成虫羽化率、发育历期和成虫寿命,称量蛹重,统计单雌产卵量。【结果】暗期各波长LED光照5 h对斜纹夜蛾卵孵化率、化蛹率和成虫羽化率无显著影响;黄光处理组卵期(4.0 d)较对照(3.0 d)显著延长,而各色光处理组蛹期较对照显著缩短,且雄蛹期显著长于雌蛹期;各色光处理均使蛹重减轻,但雌雄蛹重差异不显著;各色光处理组成虫寿命较对照均延长,红光下雄虫寿命(18.4 d)显著长于雌虫(15.0 d),且红光下产卵前期最短(3.0 d),单雌产卵量最高(1346.0粒)。【结论】在一定条件下,暗期5 h不同波长LED光照主要影响斜纹夜蛾蛹期、蛹重及成虫寿命,但其影响因波长不同而异。
【Aim】To understand the effects of exposure to 5 h LED light of different wavelengths in scotophase on the growth,development and reproduction of Spodoptera litura.【Methods】Various developmental stages of S.litura in treatment groups were exposed to LED light of different wavelengths[red(620-625 nm),yellow(580-585 nm),blue(465-467 nm),green(520-523 nm)and white(composite)light],respectively,for 5 h in scotophase,expressed as the photoperiods of 14 L∶5 R∶5 D,14 L∶5 Y∶5 D,14 L∶5 B∶5 D,14 L∶5 G∶5 D and 14 L∶5 W∶5 D,respectively,with those in the control group cultured under a photoperiod of 14 L∶10 D,and the egg hatching rate,pupation rate,adult eclosion rate,developmental duration and adult longevity were observed and calculated.Pupae were weighted and the number of eggs laid per female counted.【Results】Exposure to LED light of different wavelengths for 5 h in scotophase had no significant effect on the egg hatching rate,pupation rate,adult eclosion rate of S.litura.The egg duration of the yellow light group(4.0 d)was significantly prolonged as compared to that of the control(3.0 d),while the pupal duration of various treatment groups was significantly shortened as compared to that of the control,and the male pupal duration was significantly longer than the female pupal duration.The pupal weight of various treatment groups was reduced as compared to that of the control,but there was no significant difference in the pupal weight between female and male.The adult longevity of various treatment groups was extended as compared to that of the control.The male adult longevity of the red light group(18.4 d)was significantly longer than the female adult longevity of this group(15.0 d),and the pre-oviposition period of the red light group(3.0 d)was the shortest and the number of eggs laid per female(1346.0 eggs)of this group was the highest.【Conclusion】Under certain conditions,5 h LED light of different wavelengths in scotophase mainly affects the pupal duration,pupal weight and adult longevity of S.litura,but the effects vary with the wavelength.
作者
钟春兰
陈苏泓
周小妹
翁如玉
肖国权
郑欢欢
涂小云
ZHONG Chun-Lan;CHEN Su-Hong;ZHOU Xiao-Mei;WENG Ru-Yu;XIAO Guo-Quan;ZHENG Huan-Huan;TU Xiao-Yun(College of Life Sciences,Jiangxi Normal University,Nanchang 330022,China)
出处
《昆虫学报》
CAS
CSCD
北大核心
2020年第12期1490-1496,共7页
Acta Entomologica Sinica
基金
江西省教育厅科学技术研究项目(GJJ191686)。
关键词
斜纹夜蛾
LED光照
生长发育
繁殖
蛹重
成虫寿命
Spodoptera litura
LED light
growth and development
reproduction
pupal weight
adult longevity
