| 棉花对棉铃虫为害超补偿作用的生理机制 |
| |
| 引用本文： | 李跃强,宣维健,王红托,盛承发. 棉花对棉铃虫为害超补偿作用的生理机制[J]. 昆虫学报, 2003, 46(3): 267-271 |
| |
| 作者姓名： | 李跃强 宣维健 王红托 盛承发 |
| |
| 作者单位： | 中国科学院动物研究所,北京,100080 |
| |
| 基金项目： | 国家自然科学基金会优秀中青年人才专项基金(39221001);中国科学院知识创新工程领域前沿项目(KSCX3-IOZ-04) |
| |
| 摘 要： | 为研究棉花对棉铃虫为害超补偿作用的生理机制，作者在山东省滨州市棉田进行了模拟第二代棉铃虫为害的试验。结果表明：每株棉花摘除8个早蕾后，最终成铃数增加13.4%，其中下部第6及其上果枝的成铃数增加较多。处理组棉叶中可溶性糖和淀粉含量上升，氨基酸含量下降，光合作用强度加大(3.6%～6.7%)，叶面积系数增加8.5%～28.1%，单株生产力增大，从而揭示了超补偿作用的重要机制。
|
| 关 键 词： | 棉花 棉铃虫 模拟为害 超补偿 生理学机制 |
| 文章编号： | 0454-6296(2003)03-0267-05 |
| 修稿时间： | 2002-06-16 |
Physiological mechanism of over-compensation by cotton plants for simulated bollworm infestation on early squares |
| |
| LI Yue-Qiang,XUAN Wei-Jian,WANG Hong-Tuo,SHENG Cheng-Fa. Physiological mechanism of over-compensation by cotton plants for simulated bollworm infestation on early squares[J]. Acta Entomologica Sinica, 2003, 46(3): 267-271 |
| |
| Authors: | LI Yue-Qiang XUAN Wei-Jian WANG Hong-Tuo SHENG Cheng-Fa |
| |
| Affiliation: | LI Yue-Qiang,XUAN Wei-Jian,WANG Hong-Tuo,SHENG Cheng-Fa* |
| |
| Abstract: | The physiological mechanism of over-compensation in cotton plants, Gossypium hirsutum, for simulated infestation of the cotton bollworm, Helicoverpa armigera, on early squares was studied. Removal of 8 early squares by hand from each plant gave 13.4% more bolls than the control, and the increase in the bolls on the 6th and higher fruiting branches of treated plants contributed more to the increase of total bolls. Physiological determination showed that soluble sugar and starch contents in treated cotton leaves increased, while content of total free amino acids decreased. Increase in total leaf area (8.5%-28.1%) and photosynthetic activity (3.6%-6.7%) suggested they could be important reasons for the over-compensation observed in the treated plants, which resulted in higher productivity. |
| |
| Keywords: | Gossypium hirsutum Helicoverpa armigera simulated infestation over-compensation physiological mechanism |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《昆虫学报》浏览原始摘要信息 |
|
点击此处可从《昆虫学报》下载全文 |
