| 稻水象甲越冬成虫的耐寒力测定 |
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| 引用本文： | 张文俊,蒋明星,郑雪浩,程家安.稻水象甲越冬成虫的耐寒力测定[J].昆虫知识,2004,41(4):339-341. |
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| 作者姓名： | 张文俊 蒋明星 郑雪浩 程家安 |
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| 作者单位： | 1. 浙江大学,应用昆虫学研究所,杭州,310029
2. 浙江省乐清市植物检疫站,乐清,35600 |
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| 基金项目： | 国家重点基础研究发展计划资助项目(2002CB111403). |
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| 摘 要： | 测定了浙江乐清 (北纬 2 8 1 4°,东经 1 2 0 94°)稻水象甲LissorhoptrusoryzophilusKuschel越冬成虫的耐寒力 ,从 1 1月下旬至 3月下旬平均过冷却点温度为 -1 5 3～ -2 1 2℃ ,结冰点温度为 -1 4 0～ -1 8 6℃。结合发生地气温条件 ,讨论了该地冬春季低温对该虫越冬群存活的影响。
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| 关 键 词： | 稻水象甲 耐寒力 过冷却点 结冰点 |
Measurement of cold hardiness in overwintering adults of the rice water weevil, Lissorhoptrus oryzophilus |
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| ZHANG Wen-Jun,JIANG Ming-Xing ,ZHENG Xue-Hao,CHENG Jia-An.Measurement of cold hardiness in overwintering adults of the rice water weevil, Lissorhoptrus oryzophilus[J].Entomological Knowledge,2004,41(4):339-341. |
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| Authors: | ZHANG Wen-Jun JIANG Ming-Xing ZHENG Xue-Hao CHENG Jia-An |
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| Institution: | ZHANG Wen-Jun1,JIANG Ming-Xing 1**,ZHENG Xue-Hao2,CHENG Jia-An1 |
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| Abstract: | Cold hardiness of overwintering adults of the rice water weevil, Lissorhoptrus oryzophilus Kuschel, were investigated in a population collected from Yueqing (28\^14°N,120\^94°E), Zhejiang, China.During late November (early winter) and late March (mid\|spring), the mean supercooling point and freezing points of the adults ranged from -15\^3℃ to -21\^2℃ and from -14\^0 to 18\^6 ℃, respectively. Potential effects of low temperatures during winter and spring on survival of overwintering adults were evaluated based upon the historical records of local air temperature. |
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| Keywords: | Lissorhoptrus oryzophilus cold hardiness supercooling point freezing point |
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