补充灌溉对玉米生理指标及水分利用效率的影响  

Effects of Supplementary Irrigation on Physiological Indices and Water Use Efficiency of Maize

作　　者：宫亮[1] 孙文涛[1] 隽英华[1] 尹同波[2] 刘玉军[2] GONG Liang SUN Wen-tao JUAN Ying-hua YIN Tong-bo LIU Yu-jun(Institute of Plant Nutrition and Environmental Resources, Liaoning Academy of Agricultural Sciences, Shenyang 110161 Extension Centre of Agricultural Technology in WA Fangdian County, Dalian 116300, Liaoning Province, China)

机构地区：[1]辽宁省农业科学院植物营养与环境资源研究所,沈阳110161 [2]瓦房店市农业技术推广中心,辽宁大连116300

出　　处：《节水灌溉》2017年第1期9-11,15,共4页Water Saving Irrigation

基　　金：国家科技支撑计划项目(2011BAD09B02;2013BAD05B07)

摘　　要：为了研究玉米补充灌溉的最佳时间和增产效果,采用田间微区试验方法,研究了不同生育时期补充灌溉对玉米叶片生理特性(叶绿素、SOD、POD、MDA、可溶性蛋白)、根系生长发育及产量的影响。研究结果表明:1试验区最佳灌溉时间为玉米生育后期;2在灌浆期补灌一次即能起到显著的增产效果;3全生育期灌溉可增产6.36%,但灌溉水利用率较低。得出结论,最佳补充灌溉方式为抽雄和灌浆期各补充灌溉一次。In order to study the best time for corn irrigation,the micro-spot trials were carried out in rain-protection shed. The growth and physiological characteristics（ including chlorophyll,SOD,POD,MDA,Soluble protein）,growth of root systems,yield and water use efficiency of corn were studied under different irrigation methods. The results show that： under the condition of irrigation at the filling stage,the yield will increase significantly. Irrigation at the filling stage and tasseling stage is the best time. Irrigation three times in the growing period of maize can increase yield by 6. 36%,but irrigation water utilization rate is low. So the best supplemental irrigation method is one-time irrigation at filling stage and tasseling stage,respectively.

关 键 词：灌溉 SOD POD MDA 可溶性蛋白 

分 类 号：S274.3[农业科学—农业水土工程]