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棉铃虫对氰戊菊酯抗性品系和敏感品系的相对适合度
引用本文:吴益东,沈晋良.棉铃虫对氰戊菊酯抗性品系和敏感品系的相对适合度[J].昆虫学报,1996,39(3):233-237.
作者姓名:吴益东  沈晋良
作者单位:南京农业大学植物保护学系
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  

RELATIVE FITNESS OF FENVALERATE RESISTANT AND SUSCEPTIBLE STRAINS OF HELICOVERPA ARMIGERA (HUBNER)
Wu Yidong, Shen Jinliang, Tan Fujie, You Ziping.RELATIVE FITNESS OF FENVALERATE RESISTANT AND SUSCEPTIBLE STRAINS OF HELICOVERPA ARMIGERA (HUBNER)[J].Acta Entomologica Sinica,1996,39(3):233-237.
Authors:Wu Yidong  Shen Jinliang  Tan Fujie  You Ziping
Abstract:The effects of fenvalerate resistance on fitness in Helicorerpa 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 ofFen-R strain was observed. The Fen-R strain was calculated to have a fitness value of 0.69 relative to the susceptible S strain.
Keywords:Helicoverpa armigera (Hubner)  fenvalerate  resistance  relative fitness  
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