水分胁迫对春播粮饲玉米苗期生理特性的影响  

The Effects of Water Stress on Physiological Characteristics of Dual-purpose Maize Seedlings at Spring Sowing

作　　者：宋桂云[1] 苏雅乐[1] 苑秀莲 刘杰 赵清华 玉兰 王旭 SONG Gui-yun;Suyale;YUAN Xiu-lian;LIU Jie;ZHAO Qing-hua;Yulan;WANG Xu(College of Agriculture,Inner Mongolia University for Nationalities,Tongliao 028042,China;Agricultural and Animal Products Quality and Safety Supervision and Management Station,Zhalate County,Xingan League in Inner Mongolia Autonomous Region,Wulanhaote 137600,China;Agricultural and Animal Products Quality and Safety Supervision and Management Station,Keerqinyouyizhong County,Xingan League in Inner Mongolia Autonomous Region,Wulanhaote 029400,China;Product Quality and Measurement Testing Institute,Zhalate County,Xingan League in Inner Mongolia Autonomous Region,Wulanhaote 137600,China;Tongliao Deveiopmeng Service Center of National Agricultural Science and Technology Park,Tongliao 028000,China)

机构地区：[1]内蒙古民族大学农学院,内蒙古通辽028042 [2]内蒙古自治区兴安盟扎赉特旗农畜产品质量安全监督管理站,内蒙古乌兰浩特137600 [3]内蒙古自治区兴安盟科右中旗农畜产品质量安全监督管理站,内蒙古乌兰浩特029400 [4]内蒙古自治区兴安盟扎赉特旗产品质量计量检测所,内蒙古乌兰浩特137600 [5]通辽国家农业科技园区发展服务中心,内蒙古通辽028000

出　　处：《内蒙古民族大学学报（自然科学版）》2020年第1期75-79,共5页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：内蒙古自然科学基金项目(2017MS(LH)0308;2018MSO3059)

摘　　要：以粮饲玉米品种农华315为材料,研究水分胁迫对春播玉米苗期生理特性的影响,结果表明:水分胁迫使粮饲玉米幼苗叶绿素的含量下降,叶绿素a和叶绿素b的含量比CK处理分别降低了1.74%-20.65%和9.43%-39.76%;水分胁迫使MDA和可溶性蛋白质含量上升,其中MDA含量W2与W1和CK之间差异达到显著水平;中度水分胁迫提高了根系总吸收面积和活跃吸收面积,而重度水分胁迫使根系总吸收面积和活跃吸收面积减少.W1处理根系总吸收面积和活跃吸收面积分别比CK处理提高了91.82%和81.01%;水分胁迫降低了根系活跃吸收面积比和比表面积.The effects of water stress on physiological characteristics of dual-purpose maize Nonghua 315 seedlings during spring sowing were determined.The chlorophyll content was decreased under water stress.Compared with the control treatment,chlorophylls a and b content decreased by 1.74%-20.65% and 9.43%-39.76% while MDA and soluble protein increased.The difference of MDA content W2,W1 and CK reached a significant level.Moderate water stress promoted total absorption area and active absorption area of roots,but a reversed result occurred under serious water stress.Compared with the CK treatment,the total absorption area and active absorption area of root improved by 91.82% and 81.01%.Active absorption-area ratio and specific surface-area decreased under water stress.

关 键 词：水分胁迫 粮饲玉米 叶绿素 丙二醛 根系活力 

分 类 号：S513[农业科学—作物学]