The median lethal time ( LT50) of the GV was shortened with the increase of the virus concentration and the decrease of the larval instar, during which the GV was fed.
幼虫饲毒后,致死中时(LT(50))随病毒浓度提高而缩短;随饲毒时虫龄的增大而延长。
Results of GLM indicated that host and instar were the determinant factor influencing larval body weight whereas population did not play an important role.
多因素方差分析结果表明,寄主和幼虫龄期是决定二化螟幼虫体重的主要因子,而种群对二化螟幼虫体重的影响不大。
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