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Position: Home > Articles > Spatial Distribution Pattern and Sampling Technique of Frankliniella intonsa in Peanut Journal of Peanut Science 2010,39 (1) 22-25

花生花蓟马空间分布型及抽样技术

作  者:
陈炳旭;陆恒;董易之
单  位:
广东省农业科学院植物保护研究所
关键词:
花生;花蓟马;空间分布型;理论抽样数
摘  要:
花蓟马成虫在5块被调查花生田中的分布都是遵循负二项分布的聚集分布,其中Iwao的m*-m回归模型为m*=-0.3859+1.4568m,Taylor幂模型为lg(s2)=0.004220+1.6033lg(m)。对各聚集度指标的分析结果显示:花生花蓟马成虫彼此之间互相排斥,分布的基本成分是个体群,个体群为聚集分布,且在任何密度下都是聚集的,聚集强度随着密度的升高而增强。花生花蓟马成虫呈聚集分布是由于该虫本身的习性和环境因素共同造成的结果。花蓟马虫口密度调查的最适理论抽样数公式为n=t2/D2(0.6141/m+0.4568)。
译  名:
Spatial Distribution Pattern and Sampling Technique of Frankliniella intonsa in Peanut
作  者:
CHEN Bing-xu,LU Heng,DONG Yi-zhi(Plant Protection Research Institute,Guangdong Acad.of Agri.Sci.,Guangzhou 510640,China)
关键词:
peanut;flower thrips(Frankliniella intonsa);spatial distribution;theoretical sampling
摘  要:
The spatial distribution patterns of flower thrips [Frankliniella intonsa(Trybom)] adults in 5 peanut fields were surveyed and analysized.Results showed F.intonsa were in aggregation distribution fit for negative binomial pattern.Its Iwao's m*-m model was m*=-0.3859+1.4568m and Taylor's power model lg(s2)=0.004220+1.6033lg(m).By analysing the aggregation indices,F.intonsa were repulsive by each other in peanut fields and its basic component of distribution was colony which were in aggregation distribution even at low population density and more aggressive with population density increase.The aggreggation distribution of F.intonsa was due to their life habit and environmental factors.In addition,the optimum theoretical sampling number of F.intonsa could be obtain from the formula n=t2/D2(0.6141/m+0.4568).

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