| 周兴隆, 杨顺义, 沈慧敏*.二斑叶螨混合抗性种群相对适合度的研究[J].植物保护,2015,41(2):55-57. |
| 二斑叶螨混合抗性种群相对适合度的研究 |
| Relative fitness of Tetranychus urticae with multiple resistance |
| 投稿时间：2014-03-19 修订日期：2014-06-18 |
| DOI： |
| 中文关键词: 二斑叶螨 抗性相对适合度 生命表 |
| 英文关键词:Tetranychus urticae relative fitness life table |
| 基金项目:国家自然科学基金项目(31260442); 公益性行业(农业)科研专项(201103020) |
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| 中文摘要: |
| 研究了二斑叶螨抗甲氰菊酯、阿维菌素、螺螨酯混合品系(R)和敏感品系(S)的生长发育与生殖情况, 比较种群的生物适合度。结果表明：与敏感品系(S)相比, 抗性品系各螨态发育历期和产卵量均存在不同程度的下降, 抗性品系的净生殖率(R0=12.765 9)远低于敏感品系(R0=42.420 3), 相对适合度为敏感品系的0.300 9倍, 存在适合度缺陷; 其他生命表参数无种群差异。 |
| 英文摘要: |
| Development, reproduction and biotic fitness of the susceptible strain and the strain with multiple resistance to fenpropathrin, abamectin and spirodiclofen were evaluated using Tetranychus urticae Koch. The results showed that, compared to the susceptible strain, the developmental duration and oviposition of resistant strain declined. The net reproduction rate (R0) of the resistant strain (12.765 9) was significantly lower than that of the susceptible strain (42.420 3), but no significant differences were found in other biological parameters. The relative fitness was 0.300 9 times as that of the susceptible strain, indicating an obvious fitness cost. |
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