| 摘要: |
| 在室温25 ℃、光照16 h、相对湿度20%条件下，组建了二斑叶螨实验种群生命表。结果表明,实验种群的内禀增长力rm为0.181 7，周限增长率λ为1.199 3 d-1，净增殖率R0为25.863 2，平均世代周期T为17.902 9 d,种群增长1倍需要3.814 5 d 。 |
| 关键词: 二斑叶螨 实验种群 生命表 内禀增长率 |
| DOI： |
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| 基金项目:农业部农业结构调整重大技术研究专项“无公害优质苹果生产关键技术研究”（2002-08-03A） |
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| Establishment and analysis of life table for experimental population of Tetranychus urticae Koch on apple plant |
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| Abstract: |
| The life table of experimental population of Tetranychus urticae Koch was established at constant temperature of 25 C,with illumination time of 16 hours and humidity of 20%.The results were as follows:The intrinsic increase rate (rm) is 0.1817,the finite increase rate (λ) 1.199 3 d-1.the net reproductive rate (R0) 25.863 2/generation,the mean generation time (‘I’) 17.902 9 days and the doubling time(t)=3.814 5 days. |
| Key words: Tetranychus urticae Koch experimental population life table intrinsic increase rate |
