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蚕豆蚜数量动态预测研究

STUDY ON THE POPULATION DYNAMICS PREDICTION OF BROAD BEAN APHIDS

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【作者】 周汇李永平施文武刘刚

【Author】 Zhou Hui Li Yongping(Institute of Plant Protection, Yunnan Academy of Agricultural Sciences, Kunming)Shi Wenwu Liu Gang(Plant Protection Station of Chuxiong Prefecture, Yunnan Province, Chuxiong)

【机构】 云南省农科院植物保护研究所云南省楚雄州植物保护站云南省楚雄州植物保护站 昆明 650205昆明 650205楚雄

【摘要】 为害蚕豆的主要蚜种Aphis craccivora Koch、Acyrthosiphon pisum(Harris)、Megoura japantca Matsumura,在蚕豆生长的季节,其发生发展具有明显的阶段性,即迁入定居、数量波动、扩散蔓延及消退4个阶段。数量动态预测模型:At=B(multiply from i=1 to 1(Vi)的核心变量“单位时间增长率(Vi)”基本包涵了种群数量经典估计方程:P=P0{[R(1-d)]n(1-m)}中{[R(1-d)]n(1-m)}项的内容。因Vi及有蚜枝率、百枝蚜量、温湿系数均不是正态分布,且误差悬殊较大,不宜采用线性回归分析,故先按预定标准将温湿系数(Xe)、有蚜枝率(Xa)、百枝蚜量(Xb)的定量数据转化为定性数据,再用定性因子回归分析建立Vi的估计方程,并加田块类型、品种布局、天敌作用3个矫正项: (?)t=[b0+sum from i=1 to 4(be,iXe,i)+sum from j=1 to 5(bjXi)]+C1+C2+C3

【Abstract】 In the growing season of broad bean, the broad bean aphids , mainly the cowpea aphid Aphis craccivora Koch , Japanese vicia aphid Megoura japonica Matsumura and pea aphid Acyrthosiphon pisum (Harris), undergo four distinct periods, namely, immigration-colonization, quantitative fluctuation, dispersion and reduction. In the prediction model of population dynamics :the core variance "Vi"increase rate in unit time" has basically embodied the {[R(1- d)]n ( 1 - m) } , main part of the classical population estimation equation P = Pn { [R(1 - d)]n(1 - m)}. Due to all the Vi, infected branch rate, aphid number/100 branches and humidi-ty-temperate coefficient not belong to normal distribution, it is inappropriate to adopt linear regression method for analysis , otherwise the error would be significantly enlarged. Consequently, the data of humidity-temperature coefficient Xe , infected branch rate X, and aphid number/100 branches Xb were then be converted from quantitative to qualitative, before the estimative equation of Vi was developed by regression analysis with qualitative factors , and three emendatory terms , i. e. field types C1 , distribution of varieties C2 and control effect of natural enemies C3 , were added. The integrated equation was as follows :

【基金】 云南省“八五”科技攻关资助课题
  • 【文献出处】 植物保护学报 ,Journal of Plant Protection , 编辑部邮箱 ,1995年02期
  • 【分类号】S435.23
  • 【被引频次】3
  • 【下载频次】67
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