| 稻纵卷叶螟自然种群平均生命表 |
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| 引用本文： | 古德祥,周昌清,汤鉴球.稻纵卷叶螟自然种群平均生命表[J].中山大学学报论丛,1989(1). |
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| 作者姓名： | 古德祥 周昌清 汤鉴球 |
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| 摘 要： | 1977至1982年在广东四会大沙区大田试验获得的27个生命表资料,按各年同一世代进行统计,平均得出:第2—6代由卵至成虫的存活率分别为9.07,1.39,0.02,0.48,0.17(%):死亡主要出现在卵和1,2龄幼虫阶段,死亡率达72～98%;种群增长指数(I)值2—6代分别为5.1705,0.8859,0.0129,0.2804和0.0845,第2代最高. 关键因素分析表明:1—2龄幼虫期,3—5龄幼虫期和蛹期的失踪对总K值的波动影响较大.相关回归分析回归系数1—2龄失踪为0.3450.3—5龄为0.3331,蛹为0.2602.因此,1—2龄和3—5龄失踪为关键因素,其次为蛹期失踪.
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| 关 键 词： | 稻纵卷叶螟 生命表 |
The Mean Life Tables of Natural Population of Rice Leaf-roller, Cnaphalocrocis medinalis Guenee |
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| Gu Dexiang Chou Changching Tang Jiangqiu Research Institute of Entomology.The Mean Life Tables of Natural Population of Rice Leaf-roller, Cnaphalocrocis medinalis Guenee[J].Supplement to the Journal of Sun Yatsen University,1989(1). |
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| Authors: | Gu Dexiang Chou Changching Tang Jiangqiu Research Institute of Entomology |
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| Institution: | Gu Dexiang Chou Changching Tang Jiangqiu Research Institute of Entomology |
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| Abstract: | |
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| Keywords: | life table rice leaf-roller |
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