山东农业科学2017，Vol.49Issue(1)：91-94,4.DOI:10.14083/j.issn.1001-4942.2017.1.018
不同施氮量对冬小麦白粉病发生程度的影响
Effects of Different Nitrogen Levels on Occurring Degree of Powdery Mildew on Winter Wheat
摘要
Abstract
Under the field condition,the occurring degree of powdery mildew on two wheat varieties under different nitrogen levels were studied with the diseased plant rate,diseased leaf rate and disease index as statistical indicators to characterize the incidence of wheat.The results showed that the diseased plant rate,diseased leaf rate and disease index of wheat under high nitrogen levels were significantly higher than those under low nitrogen level.Under the same nitrogen level,the diseased plant rate,diseased leaf rate and disease index of Jimai 22 were lower than those of Luyuan 502.Therefore,appropriately reducing nitrogen application amount and selecting resistant wheat varieties could effectively reduce the incidence of powdery mildew.关键词
冬小麦/施氮量/白粉病/病株率Key words
Winter wheat/Nitrogen application rate/Powdery mildew/Diseased plant rate分类
农业科技引用本文复制引用
郭露芳,陈桂敏,马朝伟,徐灵丽,陈广锋..不同施氮量对冬小麦白粉病发生程度的影响[J].山东农业科学,2017,49(1):91-94,4.基金项目
国家重点基础研究发展计划子课题(2015CB150400) （2015CB150400）
