【摘要】 在白粉病、霜霉病、黑痘病各自的发病盛期对6个供试葡萄品种进行田间病害鉴定,同时测定各个病害健康叶和感病叶的叶绿素相对含量和绝对含量,并对2组数据进行相关分析,找出葡萄抗主要真菌病害与叶绿素相对含量和绝对含量的关系。结果表明:叶绿素的绝对含量和相对含量与供试品种对白粉病的感病性均呈显著正相关;叶绿素的绝对含量和相对含量与供试品种对霜霉病的感病性均呈极显著的正相关;叶绿素的绝对含量和相对含量与供试品种对黑痘病的感病性均呈不显著的正相关。通过了解真菌病害与叶绿素含量的关系,可为葡萄高产栽培及病害防治提供参考。更多还原

【Abstract】 The test was carried out to identify the resistance 6 tested grape varieties to Uncinula necator,Plasmopara viticola,Sphaceloma ampelinum in field at the disease incidence peak period and determine chlorophyll relative and absolute content of each disease in healthy leaves and diseases leaves,and analyze the two group data correlation,so as to look for the relationship between tested variety resistance to the main grape-fungal disease and chlorophyll relative and absolute content.The research showed that chlorophyll absolute content and relative content were remarkably correlation with the resistance of tested varieties to Uncinula necator,they were extreme remarkably correlation with Plasmopara viticola,but they were not remarkably correlation with Sphaceloma ampelinum.By understanding the relationship between fungal diseases and chlorophyll content,the test could provide reference for high-yield cultivation and disease control of grapes.更多还原