| 模拟高温过程对棉蚜存活率的影响 |
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| 引用本文： | 孙平,马吉宏,高桂珍,吕昭智.模拟高温过程对棉蚜存活率的影响[J].新疆农业科学,2011,48(2):236-240. |
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| 作者姓名： | 孙平 马吉宏 高桂珍 吕昭智 |
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| 作者单位： | 新疆农业大学,乌鲁木齐,830052;中国科学新疆公生态与地理研究所,乌鲁木齐,830011;中国科学新疆公生态与地理研究所,乌鲁木齐,830011 |
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| 基金项目： | 重大国际合作项目“干早区棉花有害生物生态控制的关键技术及其环境健康”(2007DFA31280) |
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| 摘 要： | 目的]探索高温如何影响棉蚜 Aphis gossypii Glover种群.方法]室内研究不同温度(32、34、36、38、40和42℃;高温处理8 h)对棉蚜存活率的影响.结果]棉蚜存活率随着温度的升高而降低;32、34和36℃对棉蚜存活率的影响没有差异,38℃棉蚜存活率显著降低;40和42℃棉蚜存活率接近零.相同处理时间条件下,棉蚜半数致死温度随着处理时间的延长而降低.结论]棉蚜半数致死温度平均为38.3℃,为新疆棉蚜的预测与防治提供了依据.
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| 关 键 词： | 棉蚜 高温 存活率 半数致死温度 |
| 收稿时间： | 2011-02-25 |
Effects of Different High Temperature on Survival Rate of the Cotton Aphid in Xinjiang |
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| SUN Ping,MA Ji-hong,GAO Gui-zhen,LU Zhao-zhi.Effects of Different High Temperature on Survival Rate of the Cotton Aphid in Xinjiang[J].Xinjiang Agricultural Sciences,2011,48(2):236-240. |
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| Authors: | SUN Ping MA Ji-hong GAO Gui-zhen LU Zhao-zhi |
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| Institution: | SUN Ping1,2,MA Ji-hong2,GAO Gui-zhen2,L Zhao-zhi2(1.Xinjiang Agricuhual Univemity,Urumqi 830052,China;2.Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China) |
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| Abstract: | 【Objective and Method】The experiments were conducted to assess the effects of high temperatures(32,34,36,38,40and 42℃),period of exposure(8 h) on survival rate of Aphis gossypii.【Result】The results showed that the survival rate of cotton Aphid decreased with increase of the temperature.There were no significant differences of the survival rate of Aphis gossypii between 32℃and 36℃,but the survival rate of Aphis gossypii decreased rapidly at 38℃.The survival rate of Aphis gossypii decreased to zero quickly at 40℃ and 42℃.The LT50 of cotton aphids decreased with prolonging of expouring period.【Conclusion】The results showed that the LT50 of cotton aphid is 38.3℃,which provided basis for the prediction and control of cotton aphid. |
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| Keywords: | cotton aphid high temperature survival rate semilethal temperature |
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