中国油料作物学报2018，Vol.40Issue(2)：269-274,301,7.DOI:10.7505/j.issn.1007-9084.2018.02.013
东北春大豆田间黄蓟马空间分布型及抽样技术
Spatial distribution pattern and sampling technique of Thrips flavus Schrank in spring soybean field in northeast China
摘要
Abstract
Thrips flavus is a kind of important pest on soybean plants in some areas in China in recent years.In this paper,the spatial distribution patterns of sugarcane worsening seedlings were analyzed by using six kinds of ag gregation index method,Iwao regression analysis and Taylor power law to analyze the spatial distribution patterns of adults,nymphs and complex population (adults and nymphs) in the field of soybean.The spatial distribution type fidelity chi-square test was used to determine the spatial distribution type,and the aggregation factors were analyzed.According to Iwao's theoretical sampling number model,the optimal number of sampling samples of the adults and nymphs of soybean T.flavus were determined.The results showed that the spatial distribution patterns of adults and nymphs and complex population in soybean were aggregated in different growth stages of soybean,and Iwao's regression analysis showed that T.flavus were attracted to each other,and the basic components of the distribution were individual aggregation distribution.The Taylor law reflected the density of adults,nymphs and complex population dependent aggregation degree,and the degree of aggregation increased with the increase of average density.The results of chi-square test were also aggregated.The population number of the adults and nymphs of T.flavus were greater than 2,indicating that the aggregation of T.flavus population might be due to the synergistic effect of the population habitat or its own agglomeration behavior and environmental factors.The theoretical sampling equation of T.adults was N =(2.219 9/x + 0.117 6)/D2.And the theoretical sampling equation of the T.flavus nymphs was N =(1.554 9/()x +0.072 8)/D2.The theoretical sampling equation for the whole population of T.flavus was N =(1.928 4/(x) + 0.003 5)/D2.This paper provided a theoretical basis for field sampling of T.flavus on soybean.关键词
黄蓟马/大豆生育期/空间分布型/抽样技术Key words
Thrips flavus/soybean growth period/spatial distribution pattern/sampling technique分类
农业科技引用本文复制引用
刘延超,高宇,李颖姣,潘新龙,崔娟,徐伟,史树森..东北春大豆田间黄蓟马空间分布型及抽样技术[J].中国油料作物学报,2018,40(2):269-274,301,7.基金项目
现代农业技术体系建设项目“国家大豆产业技术体系建设”(CARS-04) （CARS-04）
吉林省科技厅重点科技研发项目(2018201015NY) （2018201015NY）
