以每次调查期间的气温确定各虫态历期的方法组建的小菜蛾生命表(英文)  

Life table of Plutella xylostella(L.) constituted using the duration of each stage determined by temperature of each survey

作　　者：周洪旭[1] 袁忠林[1] 顾松东[1] 孙淑建 王思芳[1] 郑长英[1] 孙丽娟[1] 刘正东 沈长朋[1] 

机构地区：[1]青岛农业大学农学与植保学院,青岛266109 [2]山东省莱阳市农业局植保站,山东莱阳265200 [3]山东省沂水市农业局植保站,山东沥水276400

出　　处：《环境昆虫学报》2011年第4期448-455,共8页Journal of Environmental Entomology

基　　金：国家十一五科技支撑计划(2008BADA5B02);公益性行业(农业)科研专项(201103021);青岛农业大学高层次人才启动基金(630737);中国科学院动物所横向联合课题(601134);"泰山学者"建设工程专项~~

摘　　要：在用整个试验期间的气温确定各虫态历期的方法进行小菜蛾Plutella xylostella(L.)生命表数据分析时,所计算出来的未防治田某些虫态的存活率有大于1的不正常现象。为此,提出了一种新的分析方法。首先,将每次调查到的各虫态的数量(Nis)都用公式进行如下计算:每个虫态的期中值Nim=(Nis·D)/Ti;每个虫态的初始值Nib=(Ti-1·Nim+Ti·N(i-1)m/(Ti+Ti-1)。公式中,每个虫态的历期(Ti)是以每次调查期间的气温,而不是整个试验期间的气温确定的。然后,将每个虫态的初始值进行累加用以求出各个虫态的存活率。其余方法与原方法相同。用9个生命表的调查数据进行了测试,并与原方法进行了比较。对其意义和问题也进行了讨论。When the life table data was analyzed, survival rate of some stages of Diamondback moth （DBM）, Plutella xylostella （L.） in no -control filed are more than 1 deviant, in which the duration of each stages calculated by temperature during investigation. Therefore, new analyses methods have been proposed. Each stage numbers （Nis） of each survey data had been calculated by formulae at first ： each stage number of metaphase Nim = （Nis. D） / Ti and each stage number of begin Nib = （Ti-1 · Nim ＋ Ti · N（i-1）m/ （Ti ＋Ti-1）. The duration of each stage （Ti） was estimated by the temperature during each survey, not during the whole investigation. Then the begin number of each stage （i） had been ac- cumulated for calculation of each stage survival rate. The rest methods were as same as original methods. It had been tested and compared with original method used 9 life tables data. Its meaning and problem had been discussed.

关 键 词：小菜蛾 温度 历期 防治效果评价 

分 类 号：Q968[生物学—昆虫学]