四季锦带黑斑病病斑在叶片上的空间分布及抽样技术  

Spatial Distribution Pattern and Sampling Method of Weigela florida Black Spot on Leaves

作　　者：崔欣 段显德[2] 郑义 李艳玲 杨信东[3] 

机构地区：[1]长春科技学院,长春130600 [2]辽东学院农学院 [3]吉林农业大学

出　　处：《东北林业大学学报》2015年第9期104-106,共3页Journal of Northeast Forestry University

基　　金：辽东学院博士启动基金项目(20100008)

摘　　要：对长春市四季锦带（Weigela florida）黑斑病病斑在叶片上的空间分布型进行了研究。结果表明：四季锦带黑斑病病斑在叶片上的空间分布型为聚集分布,分布的基本成分是个体群。四季锦带黑斑病的理论抽样数研究表明,在常见的发病条件下（每片叶上的病斑数1~5个）,调查820~1 700片叶片,可获得较为精确的调查结果;在常见的发病条件下（每片叶上的病斑数1~5个）,调查90~190片叶片,可获得大体精确的调查结果。制定了指导防治工作的序贯抽样检索表。Weigela florida leaf samples with ieaf spot disease were collected in Changchun, Jilin Province. The spatial distribu- tion of the W. flor/da black spot was in an aggregated distribution and the basic component of distribution was individual group. The optimum sampling number for W. flor/da black spot disease was determined. By the field survey, under normal disease condition, 820-1 700 leaf samples （1-5 black spots per leaf） were required to analyze data with relatively high precision, while 90-190 leaf samples （ 1-5 black spots per leaf） were required to analyze data with relatively low preci- sion. A sequential sampling search table was established to direct W. florida black spot disease control.

关 键 词：四季锦带 黑斑病 空间分布型 理论抽样数 序贯抽样检索表 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]