摘要
水稻品种既能直接地经物理结构，亦能间接地通过改变褐飞虱Ｎｉｌｏｐａｒｖａｔａｌｕｇｅｎｓ（Ｓｔａｌ）卵的适宜性，影响稻虱缨小蜂ＡｎａｇｒｕｓｎｉｌａｐａｒｖａｔａｅＰａｎｇｅｔＷａｎｇ的发育、存活和繁殖。稻虱缨小蜂的羽化率、怀卵量分别与其寄主褐飞虱卵所处水稻品种叶鞘鞘脊的硅细胞密度呈极显著和显著负相关；同时，怀卵量和虫体大小还与受水稻品种影响的褐飞虱卵粒大小呈极显著正相关。稻虱缨小蜂种群增长能力指数的组分分析表明，不同水稻品种影响稻虱缨小峰种群增长能力的主要因子不同，显示了水稻品种对稻虱缨小蜂影响的多因子作用。
Rice variety could influence the develpment,survival and fecundity of the parasitoid Anagrus nilaparvatae directly through the physical structure of theplant or indirectly through the eggs of the parasitoid's host,i.e.the brownplanthopper,Nilaparvata lugens (Stal).There was a highly significant negativecorrelation between the emergence rate and fecundity of the parasitoid and thesilicious cell density on the back of leaf sheath of rice,and the fecundity andbody size were very significantly positively correlated with the egg size of N.lugenswhich was influenced by rice variety.The component analysis of the index of capacity for population increase of the parasitoid showed that the main factors affectingthe capacity for population increase of the parasitoid were different among rice varieties.This implies that the effects of rice varieties on the parasitoid are resultedfrom multi-factors.
出处
《昆虫学报》
CAS
CSCD
北大核心
1996年第1期28-36,共9页
Acta Entomologica Sinica
基金
浙江省自然科学基金
关键词
水稻
品种
褐飞虱
稻虱缨小蜂
发育
存活
繁殖
rice varieties,Nilaparnata lugens (Stal ),Anagrus nilapartatae,capacityfor population increase.
