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玉米耐旱系数的多元回归分析
引用本文:付凤玲,周树峰,潘光堂,杨婉身,荣廷昭.玉米耐旱系数的多元回归分析[J].作物学报,2003,29(3):468-472.
作者姓名:付凤玲  周树峰  潘光堂  杨婉身  荣廷昭
作者单位:四川农业大学玉米研究所,四川雅安,625014
基金项目:国家自然科学基金项目 ( 3 0 0 70 476),四川省应用基础研究项目 ( 2 0 0 0 -0 0 3 -0 4-0 5 ),亚洲玉米生物技术网项目资助
摘    要:利用塑料防雨棚遮挡降水,在土壤含水量略高于萎蔫系数的干旱条件下,调查12个常用和新近选育的玉米自交系与耐旱性有关的15个生长发育和生理生化指标,根据其与正常灌水对照的差异计算耐旱系数,并与籽粒产量耐旱系数进行多元回归分析.结果表明,播种出苗期可用出苗率与生物学产量耐旱系数的乘积作为自交系耐旱性鉴定指标,成株期

关 键 词:玉米  耐旱系数  多元回归
收稿时间:2001-12-11
修稿时间:2001年12月11

Multiple Regression Analysis of Drought Tolerance Coefficients in Maize
FU Feng,Ling,ZHOU Shu,Feng,PAN Guang,Tang,YANG Wan,Shen,RONG Ting,Zhao.Multiple Regression Analysis of Drought Tolerance Coefficients in Maize[J].Acta Agronomica Sinica,2003,29(3):468-472.
Authors:FU Feng  Ling  ZHOU Shu  Feng  PAN Guang  Tang  YANG Wan  Shen  RONG Ting  Zhao
Abstract:indices of growth and development, physiology and biochemistry about drought tolerance were investigated with 12 popularized or newly bred maize inbred lines under the drought condition that water content of soil was regulated to a little more than wilting coefficient with a plastic rain shelter to prevent rainfall. Drought tolerance coefficients were calculated based on the difference of the indices with the normally irrigated contrast and multiple regression analysis was made with per plant kernel yield. The results indicated that the product of drought tolerance coefficients of emergence rate and biomass could be used as the index of drought tolerance identification of inbred lines during seedling stage and that the drought tolerance identification during grown up period should depend on plant height, anthering and silking interval, leaf emergence rate and root weight.
Keywords:Zea may  L    Drought tolerance coefficient  Multiple regression
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