›› 1996, Vol. 39 ›› Issue (3): 233-237.

• 研究论文 • 上一篇    下一篇

棉铃虫对氰戊菊酯抗性品系和敏感品系的相对适合度

吴益东 沈晋良 谭福杰 尤子平   

  • 出版日期:1996-08-20 发布日期:1996-08-20

RELATIVE FITNESS OF FENVALERATE RESISTANT ANDSUSCEPTIBLE STRAINS OF HELICOVERPAARMIGERA (HUBNER)

Wu Yidong Shen Jinliang Tan Fujie You Ziping   

  • Online:1996-08-20 Published:1996-08-20

摘要: 通过构建棉铃虫Helicoverpa armigera(Hubner)对氰戊菊酯抗性品系(Fen-R)和敏感品系(S)的实验种群生命表,比较了一系列生长发育和繁殖特征,并用净增殖率(Rn)来确定两个品系的相对适合度。 结果表明,Fen-R品系与敏感品系相比具有一定程度的繁殖不利性,包括雌蛾交配率降低,每头雌蛾的平均产卵量减少以及较低的卵孵化率;没有观察到Fen-R品系在生长发育上的不利性。Fen-R品系相对于敏感品系具有0.69的适合度。

关键词: 棉铃虫, 氰戊菊酯, 抗药性, 相对适合度

Abstract: The effects of fenvalerate resistance on fitness in Helicoverpa armigera(Hubner) were evaluated in terms of developmental and reproductive characteristics.Life tables of Fen-R strain (fenvalerate-resistant) and S strain (susceptible) were also constructed to determine relative fitness by net reproductive rate (Ro). The results indicated that Fen-R strain possessed reproductive disadvantages including percentage of females mated, lower mean number of eggs per female laid and decreased percentage of eggs hatching when compared with the S strain. No developmental defect of Fen-R strain was observed. The Fen-R strain was calculated to have a fitness value of 0.69 relative to the susceptible S strain.

Key words: Helicoverpa armigera (Huibner), fenvalerate, resistance, relative fitness