【摘要】 在室温26(±1)℃、相对湿度80%~85%条件下,分别采用8种不同光周期(光暗比为0∶24、6∶18、8∶16、10∶14、12∶12、14∶10、18∶6、24∶0)对利用人工半合成饲料饲养的斜纹夜蛾各虫态进行处理。结果表明,光周期对斜纹夜蛾的化蛹率、羽化率、总存活率及产卵量均有较显著的影响,而对其发育历期无显著影响,当光暗比为12∶12时各虫态生长发育状况最好。更多还原

【Abstract】 Every stage of Spodoptera litura(Fabricius) was dealt with 8 sorts of photoperiod of light to dark at 0∶24,6∶18,8∶16,10∶14,12∶12,14∶10,18∶6 and 24∶0 under the condition of 26(±1)℃,RH 80%~85% indoors.The result showed that the photoperiod had a significantly influence on the pupate rate,the emergence rate,the survival rate and the number of laying eggs except the life-span.Spodoptera litura had the best state of growth and development at 12∶12.更多还原