不同辣椒品种对烟夜蛾生长发育和繁殖的影响  

Effects of four pepper varieties on development and fecundity of Helicoverpa assulta(Guenée)

作　　者：蔡永萍[1] 贾月丽[1] 王甜甜[1] 罗梅浩[1] 郭线茹[1] 原国辉[1] 

机构地区：[1]河南农业大学植物保护学院,郑州450002

出　　处：《植物保护学报》2012年第3期211-216,共6页Journal of Plant Protection

基　　金：河南省杰出青年科学基金项目(074100510013)

摘　　要：为探明烟夜蛾在辣椒碱含量不同的辣椒品种上生长发育和繁殖的差异,在室内条件下,通过选择性取食试验和构建种群生命表,比较了辣味程度依次下降的豫优鲜辣2号、豫艺绿冠、豫艺墨秀大椒和豫甜椒12号对烟夜蛾幼虫的取食选择性、生长发育和繁殖的影响。结果表明,烟夜蛾初孵、3龄和5龄幼虫在豫甜椒12号上的取食量比率分别为33.33%、34.22%和36.82%,均显著高于豫优鲜辣2号。在豫甜椒12号上的世代存活率为25.00%,显著高于豫艺绿冠和豫优鲜辣2号。取食豫甜椒12号时,种群加倍时间最短,仅需7.3290天;内禀增长率是取食豫优鲜辣2号的2倍;6龄幼虫对该品种的食物利用率和转化率均显著高于其它3个品种。说明豫甜椒12号品种更适宜烟夜蛾的生长发育和繁殖。To clarify the difference of the development and reproduction of Helicoverpa assulta （Guenee） on four pepper varieties （ Yuyouxianla No. 2, Yuyiltiguan, Yuyimoxiudajiao, and Yutianjiao No. 12, in a decreasing order of capsaicin content）, the feeding choice response, developmental duration and fecundi- ty of H. assulta on these varieties were investigated using choice feeding bioassays and Xife table method in the laboratory. Results showed that the food intake percentages of the newly-hatched, 3rd instar and 5th instar larvae on Yutianjiao No. 12 arrived 33.33%, 34.22% and 36.82%, respectively, which were significantly higher than those on Yuyouxianla No. 2. The generation survival rate on Yutianjiao No. 12 was 25.00% , being significantly higher than that on Yuyiltiguan and Yuyouxianla No. 2. Additionally, H. assulta feeding on Yutianjiao No. 12 had the shortest population doubling time （7. 3290 d） , and the intrinsic rate of increase （ rm） of the pest on Yutianjiao No. 12 was two-fold of that on Yuyouxianla No. 2. The 6th instar larvae could utilize the Yutianjiao No. 12 more effectively, compared with that of other three varieties. Yutianjiao No. 12 was more suitable for H. assulta growth and reproduction.

关 键 词：烟夜蛾 辣椒品种 生长发育 繁殖 

分 类 号：S433.4[农业科学—农业昆虫与害虫防治] S436.418[农业科学—植物保护]