福建农业学报Issue(11)：1122-1126,5.
梨斑点病田间病情发生规律及其影响因子分析
Occurrfncf Rfgularity and Influfncing Factors of Pfar Spot Disfasf in Fifld
摘要
Abstract
Symptoms,occurrence regularity and influencing factors of the spot disease in pear leaf were investigated and analyzed through field tracking and fixed observation.The results showed that the pear spots disease performed with small spot and large quantity in field.The spots could appear in leaf surface,vein and petiole,and made the leaves become yellow-green at the middle-late stage.The disease level would be higher during years with more rainy days or heavier rain,and be more gentle on the contrary.The disease degree varied among different pear species, which was lighter on Mixue,Mingfu,Huanghua and Qingxiang.Meanwhile,the disease degree was negatively correlated to the altitude with significant or very significant difference,and decreased as the height increasing. Within a flat ground orchard,pear leaves of the side rows showed more resistant to the spot disease.And among gardens,higher management level with the robust tree could greatly reduce the incidence and control the spreading tendency of the spot disease.关键词
梨斑点病/病情/规律/影响因子Key words
pear spot disease/pathogenic conditions/occurrence regularity/influencing factors分类
农业科技引用本文复制引用
黄新忠,张长和,曾少敏,陈传聪,林居宁,陈小明,胡宁三..梨斑点病田间病情发生规律及其影响因子分析[J].福建农业学报,2014,(11):1122-1126,5.基金项目
国家现代农业（梨）产业技术体系项目 （）
