不同晒红烟品种对烟蚜［Myzus　persicae（Sulzer）］生殖和死亡的影响

Influence of Different Varieties of Red sun-cured Tobacco on Fecundity and Mortality of Green Peach Aphid

在１２个晒红烟品种（泉烟等）和２个烤烟品种ＮＣ８９（对照品种）及红花大金元的盆栽试验中，用微笼研究了烟蚜的生命表以了解生殖力和死亡率．并对某些种群参数作出统计分析。饲养条件为２０．０℃—３１．１℃．相对湿度为７２％－９２％。获得了以下参数：净生殖率（Ｒ０），内禀增殖力（ｒｍ），平均世代历期（Ｔ）（ｄ）及周限增长率（λ）。表明烟蚜在４个品种上（ＮＣ８９、红花大金元、剑叶子、安８８）发生数量较少，而在３个品种上发生多（大花＞柳叶子＞小花青）。方差分析表明，生殖力及死亡率在品种间均有显著差异。

In potted-cultivation tests of 12 varieties of red sun-cured tobacco (Quanyanetc.) and 2 varities of fluecured tobacco NC89 (CK) and Honghuadajinyuan, by use of small cages, a life table study of Myzus persicae was carried out to fo d outo the information of fecundity and mortality and to derive statistical estimation of some population parameters. The rearing conditions of 20. 0 -31. 3C and 72%-92% RH were maintained. The following parameters have been obtained: net reproductive rate (R0) innate capacity of population increase (rm), average generation time (T) and finite rate of increase (λ) (times/d). It was suggested that the lower aphid population occurred in 4 varieties (NC89, Honghuadajinyuan, Jianyezi, An - 88), the biger in 3 varieties (Dahua>Liuyezi>Xiaohuaqing). Analysis of variances showed that there are significant difference of fecundity or mortality among varieties.