| 不同地区松突圆蚧耐寒性的研究 |
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| 引用本文： | 钟景辉,张飞萍,江宝福,陈家骅.不同地区松突圆蚧耐寒性的研究[J].中国生态农业学报,2010,18(1):117-122. |
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| 作者姓名： | 钟景辉 张飞萍 江宝福 陈家骅 |
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| 作者单位： | 福建农林大学,福州,350002 |
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| 基金项目： | 国家自然科学基金项目(30671690)和福建省自然科学基金项目(B0610003) |
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| 摘 要： | 为探讨松突圆蚧(Hemiberlesia pitysophila)对低温的地理适应能力,2007年测定并比较了广东信宜和福建漳州、泉州和长乐4个地区冬季松突圆蚧雌成虫的过冷却点和信宜、泉州、长乐3地区各虫态的低温暴露死亡率。结果表明:4个地区松突圆蚧雌成虫的过冷却点具有显著差异(P0.05),福建长乐的平均过冷却点最低,为-15.71℃,广东信宜的平均过冷却点最高,为-13.68℃,总体呈现随纬度升高而逐渐降低的趋势。在各种低温暴露下,广东信宜松突圆蚧种群的死亡率均明显高于福建泉州和长乐种群;尤其在-10℃时,前者的死亡率达85.97%,而后二者分别仅为37.58%和56.65%。松突圆蚧各地、各虫态的低温暴露死亡率变化规律均服从改进的双变量逻辑斯谛曲线模型(P0.01),但广东信宜各虫态和种群的致死中有效伤害低温累积(SLIT50)均明显高于福建泉州和长乐。因此认为:随分布纬度上升,松突圆蚧耐寒性存在逐步增强的趋势。
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| 关 键 词： | 松突圆蚧 耐寒性 过冷却点 暴露死亡率 地理适应性 |
Cold tolerance of the pine armored scale Hemiberlesia pitysophila (Homoptera: Diaspididae) in different regions |
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| ZHONG Jing-Hui,ZHANG Fei-Ping,JIANG Bao-Fu and CHEN Jia-Hua.Cold tolerance of the pine armored scale Hemiberlesia pitysophila (Homoptera: Diaspididae) in different regions[J].Chinese Journal of Eco-Agriculture,2010,18(1):117-122. |
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| Authors: | ZHONG Jing-Hui ZHANG Fei-Ping JIANG Bao-Fu and CHEN Jia-Hua |
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| Institution: | Fujian Agriculture and Forestry University, Fuzhou 350002, China;Fujian Agriculture and Forestry University, Fuzhou 350002, China;Fujian Agriculture and Forestry University, Fuzhou 350002, China;Fujian Agriculture and Forestry University, Fuzhou 350002, China |
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| Abstract: | In order to explore geographic adaptability to low temperature of Hemiberlesia pitysophila (pine armored scale,a dangerous insect pest),its supercooling point (SCP,Xinyi in Guandong Province,and Zhangzhou,Quanzhou and Changle in Fujian Province) and exposure mortality (EM,Xinyi,Quanzhou and Changle) to a designated low temperature were measured in the winter of 2007.Results indicate that female adult SCP for the four regions is significantly different (P<0.05).It is lowest for Changle with a mean value of -... |
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| Keywords: | Hemiberlesia pitysophila Cold tolerance Supercooling point Exposure mortality Geographic adaptability |
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