草坪草条锈病空间格局及抽样技术  

Spatial Paterns of Yellow Rust of Turf Grass and Its Sampling Technique.

作　　者：赵兰勇[1] 刘振宇[1] 高祥伟[1] 季延平[1] 

机构地区：[1]山东农业大学林学院,山东泰安271018

出　　处：《中国草地》2001年第6期39-41,共3页Grassland of China

基　　金：山东省科委三○工程资助项目

摘　　要：应用 5种聚集度指标和泰勒幂法则、Iwao法M =α + β x、扩散型指数Iδ 对草坪草条锈病的空间分布格局进行测定 ,结果表明 :在不同的草种、不同播种方式和不同发病程度下 ,草坪草条锈病均表现为聚集分布且存在着个体群。聚集均数 (λ)的测定表明 :草坪草条锈病的聚集原因系由病原菌本身特性和环境条件引起。Five aggregation indice were used and the result of Taylor's spower rules and Iwao's M\+*/ regression were analyzed. Results indicated that the spatial distribution pattern of yellow rust of turf grass was aggregation distribution and individual group. The causes of aggregating of the disease was the charaeters of Puccinia striifomis and the condition of environment. The retical quantities of sampling were determined.

关 键 词：草坪草 条锈病 空间格局 抽样 草坪病害 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]