灌溉排水学报2013，Vol.32Issue(4)：79-83,5.DOI:10.7631/j.issn.1672-3317.2013.04.020
土壤水分胁迫对夏玉米形态发育及水分利用效率的影响
Effects of Soil Water Stress on Morphological Development and Water Use Efficiency of Summer Maize
摘要
Abstract
Test pit experiments were conducted to study the effects of drought stress in different growth stages on plant height,leaf area,grain yield and water use efficiency (WUE) of summer maize.The results showed that the plant height,leaf area index (LAI) and stem diameter were influenced significantly by soil moisture.The plant height and LAI of summer maize decreased with the deepening of drought stress before tasseling,while the LAI decreased earlier under drought stress after tasseling.The stem diameter of summer maize also decreased with the deepening of drought stress,and the effect of water deficit on stem diameter decreased with the development of summer maize.The grain yield and water consumption of summer maize decreased significantly and WUE increased under severe water deficit in each growth stage.Compared with other treatments,WUE under medium water deficit was the highest.关键词
夏玉米/水分胁迫/水分利用效率/形态发育Key words
summer maize/ water stress/ WUE/ morphological development分类
农业科技引用本文复制引用
邱新强,路振广,孟春红,杨静敬,刘祖贵,刘战东,肖俊夫..土壤水分胁迫对夏玉米形态发育及水分利用效率的影响[J].灌溉排水学报,2013,32(4):79-83,5.基金项目
河南省重大公益科研项目(101100911100):国家现代玉米产业技术体系建设专项资金项目(nycytx-02) （101100911100）
