摘要
通过对葡萄白腐病[Coniella diplodiella(Speg.)Petrak&Sydow]流行动态模型研究,初步明确葡萄白腐病主要影响因素为时间、积温和降雨,葡萄白腐病果粒发病率(x)与葡萄生长时间(t)、有效积温(T)、累积降雨量(R)关系可用LOGISTIC模型和GROWTH模型模拟;在普通果园内,葡萄出芽后69～81d(7月中下旬);或有效积温5473～6493℃,或累积降雨量324.1～351.7mm,是防治葡萄白腐病的最佳时期。
Relations between disease occurrence and time, accumulated temperature and rainfall were determined through simulant studies on the epidemic dynamics of grape white rot [Coniella diplodiella （Speg.） Petrak ＆ Sydow]. The results showed that relations between the incidence of fruit disease and grape growth season（t）, accumulated temperature（T）, rainfall（R） could be simulated by Logistic and growth models. Period from 69d to 89d （mid and late July ） after grape shooting, or accumulated temperature from 5473℃ to 6493℃, or rainfall from 324.1mm to 351.7mm in ordinary orchard is the best control condition for the disease.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2005年第4期441-444,共4页
Journal of Shenyang Agricultural University
基金
"十五"国家科技攻关重大专项课题(2002BA516A11)
关键词
葡萄白腐病
预测模型
白腐垫壳孢
grape white rot
forecast model
Coniella diplodiella
