野生苋菜在水分胁迫下的适应性表现及其应用探讨
投稿时间:2017-08-10    点此下载全文
引用本文:庞雯,阚丽艳,谢长坤,肖煜,车生泉.野生苋菜在水分胁迫下的适应性表现及其应用探讨[J].《上海交通大学学报》(农业科学版),2018,(3):33-38
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作者单位E-mail
庞雯 上海交通大学 农业与生物学院, 上海 200240 pw212991@163.com 
阚丽艳 上海交通大学 农业与生物学院, 上海 200240  
谢长坤 上海交通大学 农业与生物学院, 上海 200240  
肖煜 上海交通大学 农业与生物学院, 上海 200240  
车生泉 上海交通大学 农业与生物学院, 上海 200240  
基金项目:“十二五”国家科技支撑计划课题(2015BAL02B01)
中文摘要:通过室内水分控制试验,研究了水分胁迫对4种常见野生苋菜的生长量、叶片相对电导率和叶绿素含量的影响。结果表明,水分胁迫下,4种苋菜生长均受到显著抑制,株高和基径平均降低了29.71%和26.11%,主根长和主根直径平均降低了16.81%和21.84%;叶片相对电导率在水分胁迫下均增大,平均相对增量为313.87%;水分胁迫使叶绿素含量增加了75.13%。研究表明,野生苋菜可能通过形态和生理上2种自我调节方式来适应水分胁迫,满足不同绿地需求,在园林绿化建设中值得推广应用。
中文关键词:野生苋菜  水分胁迫  适应性  绿化应用
 
Adaptability of Amaranthus tricolor under water stress and its application in landscape
Abstract:In this research,the changes of growth,leaf relative leakage and chlorophyll content in 4 amaranth species were analyzed under water stress.The results showed that the aboveground growth in 4 species was inhibited.The average height,base diameter,root length and taproot diameter decreased by 29.71%,26.11%,16.81% and 21.84%,respectively.The relative leaf leakage has increased by 313.87% under water stress.Water stress increased chlorophyll content by 75.13%.We concluded that these 4 amaranth species may adapt to water stress through morphological and physiological self-regulation and thus can meet different green space needs in landscaping construction.
keywords:Amaranthus tricolor  water stress  environmental adaptability  landscape application
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