毒死蜱和异丙威对禾谷缢管蚜亚致死效应研究 - 中国生态农业学报.docVIP

页边距均为2.2cm 文题： 中文小二号加粗宋体，英文小四号Times New Roman 中英文摘要、表图题、参考文献小五号字，行距14磅； 正文和二级及以下标题五号字，1.06倍行距；标题为加粗宋体 表格内六号字，12磅行距 一级标题小四号字，单倍行距，段前后行距为0.3行 为了保证印刷效果，请一定认真参照本刊要求修改图表格式，具体见文内修改和本刊必威体育精装版发表的文章 另外，结果与分析是文章的核心，请仔细阅读，保证文内分析表达的内容与图表所示内容相符，且与摘要和后面结论与讨论部分一致，避免前后矛盾。 中文参考文献需要补充英文内容 亚致死浓度毒死蜱和异丙威对禾谷缢管蚜 实验种群的影响* 摘 要 为明确亚致死浓度的毒死蜱和异丙威对禾谷缢管蚜实验种群的影响，本研究采用浸叶法分别测定了毒死蜱和异丙威对禾谷缢管蚜成蚜的毒力；并利用生命表技术分别研究了毒死蜱亚致死浓度C-LC20和C-LC30-LC20和I-LC30对禾谷缢管蚜F0代和F1代种群生长发育和繁殖的影响。毒死C-LC20C-LC30、I-LC20和I-LC30处理后，禾谷缢管蚜F0代成蚜寿命14.03%、36.04%、12.01%和26.86%产蚜量20.55%、42.27%、17.13%和26%均显著低于对照种群；与对照相比C-LC20C-LC30、I-LC20和I-LC30处理禾谷缢管蚜F1代种群的若虫期延长成蚜寿命缩短，产蚜量降低，且F1代种群的内禀增长率rm、净生殖率R0、周限增长率λ以及总生殖率GRR都比对照降低，F1代种群加倍时间Dt和平均世代周期T均延长。本研究结果显示，亚致死的毒死蜱和异丙威够降低禾谷缢管蚜种群的发育和繁殖速率，对禾谷缢管蚜种群具有明显的抑制作用。 关键词 禾谷缢管蚜 毒死蜱 异丙威 生命表 亚致死浓度 中图分类号: S435.122+.2 文献标识码: A 文章编号: Effects of chlorpyrifos and isoprocarb sublethal concentration on experimental population of Rhopalosiphum padi Abstract To evaluate the effects of chlorpyrifos and isoprocarb sublethal concentration on the experimental population of Rhopalosiphum padi , the leaf dipping method was used to test the acute toxicity of chlorpyrifos and isoprocarb to the adult aphid, and the life-table was used to analyze the effects of two chlorpyrifos sublethal concentrations (C-LC20, C-LC30) as well as two isoprocarb sublethal concentrations (I-LC20 and I-LC30) on the development and reproduction of Rhopalosiphum padi F0 and F1 generation in laboratory. The results showed that the average longevity and the average fecundity of R. padi F0 generation was significantly decreased after treating with the four sublethal concentrations comparing to the control. The average longevity of R. padi F0 generation was decreased 14.03%, 36.04%, 12.01% and 26.86% when treated with C-LC20, C-LC30, I-LC20 and I-LC30, respectively, whilst the average fecundity of R. padi F0 generation was decreased 20.55%, 42.27%, 17.13% and 26.00%, respectively. The average development period of larval stage for R. padi F1 gen