摘要
本试验对褐飞虱若虫生存率、发育进度、体重、种群建立以及成虫全氨基酸含量进行测定分析，结果表明，抗源品种上取食的褐飞虱若虫存活率降低２０％～４０％；发育进度慢了１－２个龄期，体重轻１３．２－１７ｍｇ／１０头，群体增长数量减少４倍以上。反映出抗源品种对褐飞虱的生存率体重、发育进度及群体增长数量等生物学特性存在不良的影响，其育成品种也表现出相似的特点。成虫取食后全氨基酸测定结果表明，取食抗性品种后，虫体内氨基酸总含量偏低，与感虫品种相比相差２倍。
The effects on the biological characters of brown planthopper(Nilaparvata lugensStal)by feeding the resistant varieties of rice were determined.The results showed that thenpmph survival reduced 20-40 per cent,developing rate retarded 1-2 instars,baby weightlightened 13.2-17mg/10insects and population decreased more than 4 times.This resultsdemonstrated that the resistant varieties had antibiosis effect on brown planthopper andbrown planthopper fed on the resistant varieties liad lower amino acid content than that onthe susceptible ones.
出处
《华东昆虫学报》
1995年第2期99-102,共4页
Entomological Journal of East China
