河南农业科学 ›› 2020, Vol. 49 ›› Issue (1): 24-30.DOI: 10.15933/j.cnki.1004-3268.2020.01.004

• 作物栽培·遗传育种 • 上一篇    下一篇

生理阻隔剂对苗期小麦生长和镉、砷及微量元素含量的影响

易柏竹1,贾瑞2,王宁2,姚晨1,李本银3,李烜桢1,张治钠4,陈兴4,赵永鉴4
  

  1. 1.河南农业大学 林学院,河南 郑州 450002; 2.河南农业大学 生命科学学院,河南 郑州 450002; 3.河南省农业科学院 植物营养与资源环境研究所,河南 郑州 450002; 4.河南农业大学 国际教育学院,河南 郑州 450002
  • 收稿日期:2019-06-08 出版日期:2020-01-15 发布日期:2020-01-15
  • 通讯作者: 李烜桢(1981-),男,河南平顶山人,副教授,博士,主要从事环境生态研究。E-mail:xzli2015@sina.com
  • 作者简介:易柏竹(1995-),男,河南信阳人,在读硕士研究生,研究方向:土壤污染修复。E-mail:623308122@qq.com
  • 基金资助:
    国家重点研发计划项目(2018YFD0800304);河南省重点研发与推广专项(科技攻关)(192102310234)

Effects of Physiological Barrier on Growth and Cd,As and Micronutrient Accumulation of Wheat at Seedling Stage

YI Baizhu1,JIA Rui2,WANG Ning2,YAO Chen1,LI Benyin3,LI Xuanzhen1,ZHANG Zhina4,CHEN Xing4,ZHAO Yongjian4   

  1. (1.Forestry Institute,Henan Agricultural University,Zhengzhou 450002,China; 2.College of Life Sciences,Henan Agricultural University,Zhengzhou 450002,China; 3.Plant Nutrition & Resources and Environment Research Institute,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;4.Institute of International Education, Henan Agricultural University,Zhengzhou 450002,China)
  • Received:2019-06-08 Published:2020-01-15 Online:2020-01-15

摘要: 为探讨我国北方石灰性土壤地区小麦在生理阻隔剂处理下镉(Cd)、砷(As)含量变化,采用盆栽试验,比较了8种生理阻隔剂对小麦幼苗生长和Cd、As及微量元素含量的影响。结果表明,铁(Fe)、镁(Mg)、锰(Mn)处理均增加了小麦生物量,其中Fe处理效果最佳。Mn和Mg处理对小麦Cd积累的抑制效果较好,使小麦幼苗地上部Cd含量分别降低了20.6%和15.2%。所有生理阻隔剂处理均未显著影响小麦As含量。同时还发现,Zn和Se处理降低了小麦Fe含量。总体来说,喷施Mn和Mg有望成为抑制小麦积累Cd的有效措施,但在使用时应考虑其对小麦中微量元素的影响。

关键词: 生理阻隔剂, 小麦, 镉含量, 砷含量, 叶面喷施

Abstract: In order to investigate the changes of Cd and As contents in wheat under physiological barrier treatment in calcareous soils of northern China,a pot experiment was conducted to compare the effects of 8 physiological barrier agents on growth and contents of Cd,As and micronutrient of wheat seedlings.The results showed that Fe treatment,Mg treatment and Mn treatment increased wheat biomass,among which the effect of Fe treatment was the best.The inhibitory effect of Mg and Mn treatments on the Cd accumulation of wheat was better,which decreased the Cd content of the aboveground parts of wheat by 15.2% and 20.6%,respectively. All physiological barrier agents did not significantly affect the As content of wheat.It was also found that Zn and Se treatments decreased the content of Fe of wheat. In general,foliar application of Mn and Mg was expected to be an effective measure to inhibit the accumulation of Cd and As of wheat,while the effects on wheat micronutrient content should be considered.

Key words: words:Physiological barrier agent, Wheat, Cd concentration, As concentration, Foliar application

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