浙江农林大学学报2011，Vol.28Issue(6)：927-930,4.
倒春寒与杨树烂皮病发病的关系
Relationship between Valsa sordida and abnormal coldness in spring
摘要
Abstract
Abnormal coldness in spring from 1997 to 2010 in Liaoning was classified into four levels of low-grade, secondary-grade, third-grade and serious in this paper. The relationship between the incidence of Valsa sordida and the different level of abnormal coldness in spring was also analyzed. The results showed that there was positive correlation between the total area of disease and abnormal coldness in spring (P<0.05), the same positive correlation with the moderate and serious disease area (P<0.01), and no significant level was achieved with the mild disease area (P>0.05). There was negative correlation between abnormal coldness in spring and the mild disease incidence rate (P<0.01) and positive correlation with the moderate and severe disease incidence rate (P<0.01). The year of severe abnormal coldness in spring matched with large acreage disease incidence of Valsa sordida and the more severe the coldness, the more obviously the acreage and incidence of moderate and serious disease increased. [Ch, 4 tab. 10 ref.]关键词
森林保护学/倒春寒/杨树烂皮病/发病面积/发病程度/辽宁省Key words
forest protection/ abnormal coldness in spring/ Valsa sordida/ epidemic area/ disease incidence/ Liaoning Province分类
农业科技引用本文复制引用
于海英,柴守权,周玉江,赵俊..倒春寒与杨树烂皮病发病的关系[J].浙江农林大学学报,2011,28(6):927-930,4.基金项目
科学技术部和国家林业局林业公益性行业科研专项(200804023) （200804023）
