亚麻白粉病发生规律研究  

A Study on the Occurrence Regularity of Flax Powdery Mildew

作　　者：杨学[1] 李柱刚[2] 关凤芝[1] 刘丽艳[2] 吴广文[1] 王珣[2] 宋宪友[1] 赵东升[1] 

机构地区：[1]黑龙江省农业科学院经济作物研究所,哈尔滨150086 [2]黑龙江省农业科学院生物技术研究中心,哈尔滨150086

出　　处：《中国麻业科学》2007年第2期86-89,共4页Plant Fiber Sciences in China

基　　金：黑龙江省自然科学基金重点项目;黑龙江省青年科学技术专项资助项目;哈尔滨市科技计划项目

摘　　要：在亚麻生长季节定期定点观察亚麻白粉病发生程度,分析温度、湿度、光照等气象因素及不同播种密度和不同播期对亚麻白粉病害发生发展规律的研究。明确适宜亚麻白粉病发生流行的温度为20-25℃,过高或过低都会抑制其流行;在阴天、高湿条件下有利于亚麻发病与流行;播种密度越大、春季播种时期越晚,亚麻白粉病发病就越严重。This research observed the occurrence extent of powdery mildew of flax during the growth of flax at certain period and position, analyzing by temperature, humidity, illumination of climate factors and different seed density influences on the occurrence and development extent of and the different seed periods powdery mildew of flax. It is discerned that the suitable temperature for the occurrence popularity of powdery mildew of flax is 20 to 25℃. High or low temperature would restrain the popularity of powdery mildew of flax. In rainy and high humidity season, it would accelerate the development and popularity of powdery mildew of flax. The more seed density and the later time of seed period in spring, the development of powdery mildew of flax is more severe.

关 键 词：亚麻白粉病 气象因素 密度 播期 

分 类 号：S435.63[农业科学—农业昆虫与害虫防治]