Latest Cover

Online Office

Contact Us

Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Tel:+86-10-64807137
Fax:+86-10-64807137
Email:entom@ioz.ac.cn
Your Position :Home->Past Journals Catalog->2017年54 No.4

Population growth of Bemisia tabaci (Gennadius) on different varieties of pepper
Author of the article:HE Jing1** ZHOU Fu-Cai1, 2*** SU Hong-Hua1 ZHAO Bin3 SAO Yi-Dong4 YANG Ai-Min1 ZHANG Xin-Ning
Author's Workplace:1. College of Biological Science and Technology,Yangzhou University, Yangzhou 225009, China; 2. Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China; 3. Agricultural Technology Extension Center of Xanghua City, Xanghua 225700, China; 4. Agricultural Technology Extension Center of Jiangyin City, Jiangyin 214431, China; 5. Agricultural Committee of Suining County, Suining 221200, China
Key Words:Bemisia tabaci (Gennadius), pepper, insect-resistance,antibiosis
Abstract:

[Objectives]  To compare the population growth of Bemisia tabaci (Gennadius) on different pepper varieties by establishing the correlation between the content of the leaves of each variety and the population size of B. tabaci[Methods]  The population trend index (I) of whiteflies feeding on different varieties of peppers was calculated, and the quantity of soluble sugar, soluble protein, free proline, phenolic compounds and flavonoids, in pepper leaves, measured. The correlation between whitefly population size and leaf content was analyzed. [Results]  There were significant differences in the size of whitefly populations that fed on different varieties of peppers. Insect-resistant varieties had significantly higher amounts of soluble sugar, phenolic compounds and flavonoids, but lower soluble protein and free proline, than susceptible varieties. I was significantly, negatively correlated with soluble sugar, phenolic compounds and flavonoids, and significantly, positively correlated with soluble protein and free proline. Among the factors measured, soluble sugar had the most important effect on I. Multiple regression analysis was used to model the relationship between I and five factors; soluble sugar (X1), soluble protein (X2), free proline (X3), phenolic compounds (X4) and flavonoids (X5). The regression equation was: Y = 47.801– 1.754X1+1.206 X2+1.108 X3 –0.437 X4 –0.649 X5 (R2 = 0.688). [Conclusion]  Insect-resistant pepper varieties had significantly lower whitefly populations than susceptible varieties.

CopyRight©2017 Chinese Journal of Aplied Entomology