摘要
以22个试验点的大豆灰斑病病情指数为材料,通过多元线性回归分析和通径分析,研究了6、7、8月的平均气温、降雨量和日照时数9个气象因子对大豆灰斑病病情指数作用的直接效应和间接效应。结果表明:大豆灰斑病的流行取决于7月份充沛的降雨和8月份相对较高的温度。如果出现7月份充沛的降雨和8月份相对较高的温度,大豆灰斑病将严重发生甚至流行。
Based on the disease index of soybean frogeye leaf spot of 22 locations in east of Heilongjiang province,multiple linear regression analysis and path analysis of mean temperature,precipitation and sunshine hours in June,July and August on the disease index of soybean frogeye leaf spot were conducted to research direct and indirect effect of meteorological factors on development of soybean frogeye leaf spot.The results showed that the prevalence of soybean frogeye leaf spot depended on full rain in July and relatively high temperature in August.The results provided the theoretical basis for the prediction and prevention of soybean frogeye leaf spot.
出处
《大豆科学》
CAS
CSCD
北大核心
2010年第4期727-729,共3页
Soybean Science
基金
国家科技支撑计划资助项目(2006BAD21B01)
黑龙江省自然科学基金资助项目(C200936)
关键词
大豆灰斑病
气象因子
多元线性回归
通径分析
Soybean frogeye leaf spot
Meteorological factor
Multiple linear regression analysis
Path analysis