| 褐飞虱和白背飞虱的取食为害对水稻营养生长的影响 |
| |
| 引用本文： | 王荣富,邹运鼎.褐飞虱和白背飞虱的取食为害对水稻营养生长的影响[J].应用生态学报,1998,9(1):51-54. |
| |
| 作者姓名： | 王荣富 邹运鼎 |
| |
| 作者单位： | 南京农业大学农业部病虫监测与治理重点开放实验室!南京，210095，南京农业大学农业部病虫监测与治理重点开放实验室!南京，210095，安徽农业大学!合肥，230036 |
| |
| 基金项目： | 国家“九五”重点科技攻关项目!96－005－01－01－06，江苏省“九五”重点科技攻关项目!BG96513－1 |
| |
| 摘 要： | 对塑料钵栽培的水稻进行罩宠试验，研究了褐飞虱和白背飞虱在不同若虫密度下取食为害对水稻营养生长的影响．结果表明，两种飞虱的成虫干重、水稻叶面积和其地上部干重因若虫密度的增加而下降．叶片干重占地上部干重的比例和稻株分配给叶片干物质量随为害程度的加重而增大；褐飞虱和白背飞虱总干重（X）与稻株地上部损失量（Y）之间存在着极显著的线性关系．两种飞虱干重每增加1mg，水稻地上部干重则分别损失26.01mg和21．90mg．讨论了稻飞虱取食为害对水稻致害的可能机制．
|
| 关 键 词： | 水稻 褐飞虱 白背飞虱 取食 致害性 |
Feeding effect of brown and white-backed planthoppers on vegetative growth of rice plants |
| |
| Wang Rongfu, Cheng Xianian.Feeding effect of brown and white-backed planthoppers on vegetative growth of rice plants[J].Chinese Journal of Applied Ecology,1998,9(1):51-54. |
| |
| Authors: | Wang Rongfu Cheng Xianian |
| |
| Abstract: | A nylon net experimental system was used to study the feeding effect of different nymph densities of brown planthopper (BPH) and white-backed planthopper (WBPH) on the vegetativegrowth of rice plants in plastic pots. The results show that with the increase of nymph density,the dry weight of planthopper adults and the leaf area and shoot dry weight of rice plants weredecreased. The ratio of leaf dry weight shoot dry weight and the dry matter in leaf allocated byrice plants were increased with increasing infestation by planthoppers. A very significant linearrelationship was observed betwecn the total dry weight of two planthoppers and the loss of shootdry weight of rice plants. If the dry weight of two planthoppers was increased by 1mg, the lossof shoot dry weight caused by BPH and WBPH was estimated by 26. 01 and 21. 90mg, respectively. The possible mechanism of feeding infestation by planthoppers was discussed. |
| |
| Keywords: | Rice Nilaparvata lugens Sogatella furcifera Feeding Infestation |
| 本文献已被 CNKI 维普 等数据库收录！ |
