水稻褐飞虱三种生物型间的生物学特性比较

Biological Characters Comparison among Biotype 1,2 and 3 of Brown Planthopper(Nilaparvata lugens(Stl))

以水稻褐飞虱[Nilaparvata lugens(Stl)]生物型1、2、3为研究对象,从昆虫外观形态及在不同寄主品种上的栖息率、产卵量、若虫存活率等方面进行了比较研究。结果表明,褐飞虱生物型1、2、3在外观形态上无明显差异,但在对寄主水稻品种的偏好性(栖息率、产卵量和若虫存活率)等方面有比较明显的差异,为进一步的遗传差异研究提供了依据。

Brown planthopper [Nilaparvata lugens（Stl）] biotype 1,2 and 3 were tested based on insect appearance,inhabiting ratio on three rice varieties,egg amount and survival ratio of nymphs.The results showed that Biotype 1,2 and 3 were different from their biological characters except for their appearance.The results could be used as guidence for further research of insect genetics.