凉山烟田烟粉虱(MED隐种)成虫空间分布型及序贯抽样技术  

Spatial distribution pattern of Bemisia tabaci MED adults in tobacco fields in Liangshan and sequential sampling technique

作　　者：王勇 王小强 蒲德强[2] 刘虹伶[3] 刘东阳 冯长春 卢军 龙岗 陈佳威 周肆维 李斌[4] 刘杨[4] WANG Yong;WANG Xiaoqiang;PU Deqiang;LIU Hongling;LIU Dongyang;FENG Changchun;LU Jun;LONG Gang;CHEN Jiawei;ZHOU Siwei;LI Bin;LIU Yang(Liangshan Municipal Tobacco Company,Xichang　615000,China;Industrial Crop Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu　610300,China;Institute of Plant Protection,Sichuan Academy of Agricultural Sciences,Chengdu　610066,China;Sichuan Tobacco Company,Chengdu 610041,China)

机构地区：[1]四川省烟草公司凉山州公司,西昌615000 [2]四川省农业科学院经济作物育种栽培研究所,成都610300 [3]四川省农业科学院植物保护研究所,成都610066 [4]四川省烟草公司,成都610041

出　　处：《植物保护》2018年第2期129-133,共5页Plant Protection

基　　金：四川省烟草公司科技项目(LSYC201603;SCYC201402001C)

摘　　要：运用2种回归方法和8个聚集度指标对四川凉山烟田烟粉虱盛发期种群的空间格局进行了研究。结果表明,烟粉虱种群呈聚集分布,聚集强度不随种群密度的变化而变化,其聚集原因是由环境因素所导致;通过种群密度与聚集度指标相关性分析表明,用平均拥挤度(m*/m)、负二项分布指标(K)及久野指数(CA)分析烟粉虱空间分布型更具说服力;并利用空间格局参数确定了理论抽样数和序贯抽样模型。Two regression models(Iwao’s regression and Taylor’s power principle)and eight aggregation indices[K,C,C A,I,M*,m*/m,L*,L*/(1+m)]were used to test the spatial distribution patterns of B.tabaci populations.The results indicated that the distribution patterns of B.tabaci populations accorded with minus binomial distribution,belonging to a type of aggregated distribution except in August when it was in uniform distribution.The mean aggregation index(λ)suggested that aggregation was caused by environmental factors.In addition,the aggregation indexes(K,C A,m*/m)could better explain the spatial distribution patterns of B.tabaci populations.The theoretical sampling number and sequential sampling model were inferred from the spatial pattern parameters.

关 键 词：烟粉虱 凉山州 空间分布型 抽样技术 聚集原因 

分 类 号：Q968.1[生物学—昆虫学]