干旱胁迫下新疆野葱与普通大葱生理特性比较分析  

Comparative Analysis on Physiological Characteristics of Xinjiang Wild Onion and Common Welsh Onion under Drought Stress

作　　者：黄晓梅 苑磊 种道齐 王立霞 高亚轻 刘世琦[1] HUANG Xiao-mei;YUAN Lei;ZHONG Dao-qi;WANG Li-xia;GAO Ya-qing;LIU Shi-qi(College of Horticulture Science and Engineering,Shandong Agricultural University,Garlic Engineering Technology Research Center of Shandong Province,Shandong Fruit and Vegetable High Quality and Efficient Production Collaborative Innovation Center,State Key Laboratory of Crop Biology,Key Laboratory of Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region,Ministry of Agriculture and Rural Affairs,Tai’an 272018,Shandong,China)

机构地区：[1]山东农业大学园艺科学与工程学院山东省大蒜工程技术研究中心山东果蔬优质高效生产协同创新中心作物生物学国家重点实验室农业农村部黄淮地区园艺作物生物学与种质创制重点实验室

出　　处：《中国蔬菜》2020年第1期48-55,共8页China Vegetables

基　　金：国家自然科学基金项目(31372084)

摘　　要：以新疆野葱与普通大葱(章丘大葱和日本元藏大葱)为试材,采用盆栽控水法研究干旱胁迫对3种葱生理指标的影响。结果表明:野葱整体长势较弱,但随着土壤相对含水量的降低,野葱株高、叶长等形态指标变化幅度小;野葱叶片和假茎中可溶性糖、可溶性蛋白质、脯氨酸含量及根系活力、抗氧化酶活性均高于普通大葱,且相对电导率和MDA、H2O2含量增加幅度小于普通大葱,可溶性糖、脯氨酸含量和SOD、POD活性增加幅度大于普通大葱,根系活力下降幅度低于普通大葱。综合各项指标,野葱的抗旱性优于章丘大葱和日本元藏大葱。Taking Xinjiang wild onion and common welsh onion(Zhangqiu welsh onion and Japanese Yuanzang welsh onion)as test material,this paper studied the effects of drought stress on physiological indexes of 3 kind onions by potted water control method.The results showed that the overall growth of wild onion was weak,but with the decrease of the relative water content in soil,the changing range of morphological indicators,including plant height and leaf length of wild onion was small.The contents of soluble sugar, soluble protein,and proline in leaves and pseudostems of wild onion,root activity and antioxidant enzyme activity were all higher than those of common welsh onion.While,the increasing range of relative conductivity,MDA,H2O2 content were less than that of common welsh onion.And the increase range of soluble sugar,proline content,SOD,POD activity were greater than that of common welsh onion.The decreasing range of root activity was smaller than that of the common welsh onion.Based on various indicators,the drought resistance of wild onion is superior to that of Zhangqiu and Japanese Yuanzang welsh onion.

关 键 词：干旱胁迫 野葱 普通大葱 生理特性 

分 类 号：S633.1[农业科学—蔬菜学]