| 温度及土壤含水量对淡剑纹灰翅夜蛾死亡率的影响 |
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| 引用本文： | 黄东林,张金华,蔡大伟,王凤,邹敏,史晓利. 温度及土壤含水量对淡剑纹灰翅夜蛾死亡率的影响[J]. 昆虫知识, 2005, 42(2): 168-170 |
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| 作者姓名： | 黄东林 张金华 蔡大伟 王凤 邹敏 史晓利 |
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| 作者单位： | 扬州大学农学院植物保护系,扬州,225009 |
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| 基金项目： | 扬州大学基金 (MK0 1132 16 )资助项目 |
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| 摘 要： | 淡剑纹灰翅夜蛾Spodopteradepravata(Bulter)在 2 2 ,2 5 ,2 8,3 1 ,3 4,3 6,3 8℃恒温条件下卵孵化率分别为 96. 0 0 ,91 .0 0 ,83. 90 ,84. 81 ,83 . 60 ,80 %和 0。高龄幼虫在低温环境下 ,一般随温度的降低、时间的延长死亡率增加。过冷却点为 (-6. 81± 1 . 63 )℃ ,体液冰点为 (-3 .5 1± 1 . 5 6)℃。 1 0 %土壤含水量时该虫羽化率最高 ,40 %及其以上羽化率为 0。
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| 关 键 词： | 淡剑纹灰翅夜蛾 不同温度 抗寒性 土壤含水量 |
Effects of temperature and soil water capacity on survial of Spodoptera depravata |
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| HUANG Dong-Lin,ZHANG Jin-Hua,CAI Da-Wei,WANG Feng,ZOU Min,SHI Xiao-Li. Effects of temperature and soil water capacity on survial of Spodoptera depravata[J]. Entomological Knowledge, 2005, 42(2): 168-170 |
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| Authors: | HUANG Dong-Lin ZHANG Jin-Hua CAI Da-Wei WANG Feng ZOU Min SHI Xiao-Li |
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| Abstract: | The hatch-rate of Spodoptera depravata was 96.0,91.00,83.90,84.81,83.60,80.00% and 0 when the temperature was at 22,25,28,31,34,36 and 38℃ respectively. The mortalities of the larvae increased when the temperature dropped and the time delayed under the low temperature. Supercooling point of larvae of S.depravata was (-6.81±1.63)℃. The freezing point of body fluid was(-3.51±1.56)℃.The molting percentage was highest when soil water capacity was 10%, and the insect couldn't molt when the soil water capacity was higher than 40%. |
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| Keywords: | Spodoptera depravata temperature cold hardiness soil water capacity |
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