摘要
本研究证明白背飞虱卵期不存在密度效应,卵孵化率平均为86.58％;若虫、成虫期密度效应明显,随着密度增加,若虫存活率、成虫产卵量和寿命呈幂函数曲线下降。
There is no density - dependent effect for the egg of S. furcifera. The mean egg hatchability is 86. 58%. There is singnificant density-dependent effect during nymph and adult. The nymphal survival rate, the egg production and longevity of adult all appeared a power function curve declining with the rising density of nymph and adult.
出处
《江西农业学报》
CAS
1992年第2期130-133,共4页
Acta Agriculturae Jiangxi
关键词
水稻
白背飞虱
密度效应
种群
Rice
Sogatella furcifera
density-dependent effect
