摘要
分别采用不同浓度的PEG(0%,5%,10%和15%)模拟干旱胁迫,对30 d苗龄的盆栽大豆幼苗进行干旱胁迫处理,分析2个杂交大豆品种开花期对干旱胁迫的生理响应.结果表明,干旱胁迫导致2个杂交大豆叶片的SPAD值、丙二醛含量升高,脯氨酸含量降低;杂交豆5号的可溶性糖含量和谷胱甘肽还原酶活性升高,而杂交豆2号表现出相反趋势.根据干旱胁迫后2个品种大豆的表型特征和对上述5种生理指标的综合反应,杂交豆5号比杂交豆2号表现出更强的耐干旱胁迫能力,可作为耐旱品种加以推广.
To determinethe responses of two hybrid soybean varieties to drought stress at the flowering stage,thirty-day potted hybrid soybean seedlings were treated with 0,5,10,and 15%PEG.Drought stress increased SPAD value and MDA content in leaves of both hybrids.The soluble sugar content and glutathione reductase activity of hybrid soybean 5 were increased under PEG stress in contrast to hybrid soybean 2.Hybrid soybean 5 showed stronger resistance to drought stress compared to hybrid soybean 2,and could be considered as a drought-tolerant variety.
作者
包乌日娜
张冬梅
周波
李志刚
向殿军
张卫国
刘鹏
BAO Wurina;ZHANG Dong-mei;ZHOU Bo;LI Zhi-gang;XIANG Dian-jun;ZHANG Wei-guo;LIU Peng(College of Agriculture,Inner Mongolia University for Nationalities,Tongliao 028043,China;Tongliao City Soil Fertilizer Workstation,Tongliao 028000,China)
出处
《内蒙古民族大学学报（自然科学版）》
2018年第1期62-67,共6页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
内蒙古自治区饲用作物工程技术研究中心开放课题(MDK2017004)
关键词
杂交大豆
PEG
生理特性
Hybrid soybean
PEG
Physiological characteristics
