| 摘要: |
| 供试棉田的系统调查资料显示，6192，中棉12和冀棉11等3个棉花品种上的棉蚜和卵形异绒螨幼螨的种群消长符合Logistic模型，棉蚜被幼螨寄生的寄生率变化符合Weibull-Ⅰ模型。通过模型参数和实测资料对比得知，该幼螨具有随不同棉花品种上的棉蚜种群变化而变化的调节能力，同时得知6192棉花品种较抗蚜，冀棉11较感蚜。 |
| 关键词: 棉花品种，棉蚜，卵形异绒螨，种群消长 |
| DOI： |
| 分类号:S433 |
| 基金项目:陕西省自然科学基金和校青年基金资助项目 |
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| A Study on the Dynamics of Aphis gossypii and Allothrombium ovatum Larvae on Different Cotton Varieties |
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| Abstract: |
| Based on field studies of the dynamics of Aphis gossypii and Allothrombium ovatum larvae on three cottons—6192,Zhongmian 12 and Jimian 11, it is found that the field dynamics of aphid and mite is in conformity to the Logistic Equation, and the change of parasitic rates is in conformity to Weibull Distribution. From field data, it is
known that the mite is able to regulate with the variance of aphid population on different
cotton varieties. 6192 is more aphid resistant than the other two cottons, and Jimian 11 is
less. |
| Key words: cotton variety,Aphis gossypii,Allothrombium ovatum,population dynamics |
