作 者: ; ; ; (彭昭荣); (钟玲); (宋建辉);
机构地区: 南昌大学生命科学与食品工程学院
出 处: 《南昌大学学报(理科版)》 2014年第5期488-491,共4页
摘 要: 朱砂叶螨在江西东乡木薯上的种群消长表现为2个高峰,一个出现在8月份,另一个出现在11月份,且朱砂叶螨大量爆发。运用聚集型指标、Taylor幂法则和 Iwaor的m*-x直线回归分析法,得出朱砂叶螨在7~11月份的空间分布型为聚集分布。最适抽样数N=29.8+37.15/x。 The peaks of population dynamic of Tetranychuscinnabarinus were discovered to happen twice on Manihot esculenta Crantz in Dongxiang county of Jiangxi province,one in August,another in November. Meanwhile,it was the largest outbreak period of the red spider mite.Several aggregation indices、Taylor power law and-liner regression equation of Iwao were used to determine the spatial distribution type of T. cinnabarinus.The assembly distribution from January to November was revealed.Based on these analyses, the optimum sampling number was established to be N=29.8+37.15/x.
领 域: [生物学]