摘要
【目的】毛健夜蛾Brithys crini(Fabricius)可为害葱莲Zephyranthes candida等石蒜科绿化植物,前期研究表明不同光周期对其交配和产卵节律行为及交配率和产卵量均有显著影响。本实验期望探明间歇光照等复杂光照条件对毛健夜蛾交配和产卵的影响。【方法】在光照培养箱条件下(光源为白色日光灯,光照强度约为500 lx),观察了间歇光照长度(20,10,5,1和0 min)、暗期位点(D10:00-22:00,D12:00-24:00,D14:00-02:00和D16:00-04:00)和非24 h光暗循环(4L∶4D,8L∶8D,24L∶24D和48L∶48D)3种光照条件下毛键夜蛾成虫交配及产卵行为。【结果】间歇光照长度为20,10,5,1和0 min时,成虫交配数分别为0,3,10,14和11对,配对数分别为25,29,31,39和26对;间歇光照长度为20和10 min时,交配数与对照组差异显著;10,5,1和0 min时已交配单雌产卵量差异不显著(分别为354.67,322.30,339.57和310.45粒)。暗期位点为D10:00-22:00,D12:00-24:00,D14:00-02:00和D16:00-04:00时,成虫交配数分别为13,18,15和12对,配对数分别为16,19,17和16对,交配数差异不显著;已交配单雌产卵量差异不显著(分别为516.15,527.28,495.53和458.50粒);交配起始时间、交配高峰时间和产卵起始时间、产卵高峰因暗期位点不同而异。非24 h光暗循环(4L∶4D,8L∶8D,24L∶24D和48L∶48D)条件下成虫交配数分别为16,15,14和14对,配对数分别为18,16,14和16对,交配数差异不显著;已交配单雌产卵量差异显著(分别为590.56,559.67,497.21和419.29粒)。【结论】这些结果显示毛健夜蛾交配和产卵行为主要发生在暗期,暗期短于40 min时不能发生交配行为,暗期位点和长度对交配和产卵行为有影响。
【Aim 】 Brithys crini( Fabricius) mainly feeds on Amaryllidaceae plant, including Zephyranthes candida. Previous research showed that photoperiod has significant effects on the circadian rhythm of mating and oviposition,mating percentage and the number of eggs laid of B. crini. This study aims to investigate the effects of intermittent light length,the position of dark period and non-24 h lightdark cycle on its mating and oviposition. 【Methods 】 The mating and oviposition were observed in intermittent light lengths( 20,10,5,1 and 0 min),the position of dark period( D10: 00- 22: 00,D12: 00- 24: 00,D14: 00- 02: 00 and D16: 00- 04: 00) and non-24 h light-dark cycle( 4L∶ 4D,8L∶ 8D,24L∶ 24 D and 48L∶ 48D) under the climate cabinet conditions( white fluorescent light,light intensity about 500 lx).【Results】When intermittent light lengths were 20,10,5,1 and 0 min,the numbers of mated adults were0,3,10,14 and 11,and the numbers of paired adults were 25,29,31,39 and 26,respectively. The numbers of mated adults in 20 and 10 min groups were significantly different from that of the control group( 0 min). The numbers of eggs laid per mated female were insignificantly different among groups( 354. 67,322. 30,339. 57 and 310. 45 eggs for 10,5,1 and 0 min group,respectively). The numbers of mated adults were 13,18,15 and 12,and the numbers of paired adults were 16,19,17 and 16 in D10: 00- 22: 00,D12: 00- 24: 00,D14: 00- 02: 00 and D16: 00- 04: 00 groups,respectively,and there was no significant difference among treatment groups. The number of eggs laid per mated female was insignificantly different among treatment groups( 516. 15,527. 28,495. 53 and 458. 50 eggs in D10: 00- 22: 00,D12: 00- 24: 00,D14: 00- 02: 00 and D16: 00- 04: 00 groups,respectively). The initiation time and peak time of mating and oviposition varied with the position of dark period. The numbers of mated adults were 16,15,14 and 14,and the numbers of paired adults were 18,16,14 and 16 in 4L∶ 4D,8L∶ 8D,24L∶ 24 D and 48L∶ 48 D groups,respectively,and there was no significant difference among treatment groups. The number of eggs laid per mated female was significantly different among groups( 590. 56,559. 67,497. 21 and 419. 29 eggs in 4L∶ 4D,8L ∶ 8D,24 L ∶ 24 D and 48 L ∶ 48 D groups,respectively). 【Conclusion】These results reveal that the mating and oviposition behaviors of B. crini occur mainly in the dark period. The adults would not mate when the dark period is shorter than 40 min. The position and length of dark period have influences on the mating and oviposition of B. crini.
出处
《昆虫学报》
CAS
CSCD
北大核心
2016年第10期1103-1114,共12页
Acta Entomologica Sinica
基金
江西师范大学大学生学术课题资助项目
关键词
毛健夜蛾
光照条件
光周期
交配
产卵
昼夜节律
Brithys crini
light conditions
photoperiod
mating
oviposition
circadian rhythm