| 小菜蛾幼虫对菜心叶片取食量的测定及其拟合模型 |
| |
| 引用本文： | 赵素梅,刘慧,郭明昉,黄寿山. 小菜蛾幼虫对菜心叶片取食量的测定及其拟合模型[J]. 昆虫天敌, 2011, 0(3) |
| |
| 作者姓名： | 赵素梅 刘慧 郭明昉 黄寿山 |
| |
| 作者单位： | 云南省红河热带农业科学研究所;华南农业大学;广东省昆虫研究所; |
| |
| 基金项目： | 广东省自然科学基金项目(8151026001000005) |
| |
| 摘 要： | 通过小菜蛾Plutella xylostella L.幼虫对菜心取食量变化的研究,得知小菜蛾幼虫在不同阶段的取食量以及变化规律,累计取食量在一定程度上表明了害虫的某一发育阶段对寄主的危害程度。并根据小菜蛾幼虫取食量与时间关系使用SAS8.1和Matlab7.1软件进行曲线拟合。小菜蛾幼虫取食菜心的叶面积的拟合曲线为f(t)=a1*sin(a2*t+a3)+a4*sin(a5*t+a6)+a7*sin(a8*t+a9),(R2=0.8832);而小菜蛾幼虫取食菜心叶片累计取食量的拟合曲线的Logistic模型为y=429.6285/[1+exp(0.66963-0.51935t)](R2=0.9621,p<0.05)。
|
| 关 键 词： | 小菜蛾 菜心 取食量 数学模型 |
The measurement and mathematic model on feeding amount of Plutella xylostella larvae to the leaf of Brassica parachinensis |
| |
| ZHAO Su-Mei,,LIU Hui,GUO Ming-Fang,HUANG Shou-Shan. The measurement and mathematic model on feeding amount of Plutella xylostella larvae to the leaf of Brassica parachinensis[J]. Natural Enemies of Insects, 2011, 0(3) |
| |
| Authors: | ZHAO Su-Mei LIU Hui GUO Ming-Fang HUANG Shou-Shan |
| |
| Affiliation: | ZHAO Su-Mei2,3,LIU Hui1,GUO Ming-Fang1,HUANG Shou-Shan3 (1. Guangdong Entomological Institute,Guangzhou 510260,China,2. Honghe Tropical Agriculture Institute of Yunnan,Hekou 661300,Yunnan Province,3. South China Agricultural University,Guangzhou 510642,China) |
| |
| Abstract: | Through measuring the fed leaf areas of Brassica parachinensis by the different phase larvae of Plutella xylostella, it was achieved the change tends of feeding amount about the larvae of Plutella xylostella. Moreover, cumulative feeding amount indicated the damage level to the extent on the pest to the post. More of important, the authors carried out mathematic model simulation by SAS and Matlab system by utility of data from the experimental outcomes. First, the relationship between feeding amount of per ... |
| |
| Keywords: | Plutella xylostella L. Brassica parachinensis Bailey feeding amount mathematic model |
| 本文献已被 CNKI 等数据库收录！ |
|
