摘要
对河西走廊发生最为严重的林木食叶害虫春尺蠖进行了蛹质量(x)与产卵量(y)相关回归预测,回归预测式为y=-76 7405+1204 2508x,相关系数r为0 9459。
The correlative regression forecast was conducted, of weight of pupa (x) and number of ovum (y) of Apocheima cinerarius, a kind of leafeaten woods pest occurred in Hexi corridor seriously, and its regression equation is y=-76740 5+1 204250 8x and correlative coefficient is r=0945 9
出处
《甘肃林业科技》
2003年第3期18-19,共2页
Journal of Gansu Forestry Science and Technology
关键词
春尺蠖
蛹质量
产卵量
相关回归
预测
Apocheima cinerarius
weight of pupa
number of ovum
correlative regression
forecast
