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铜尾矿对小麦生长发育和生理功能的影响
引用本文:刘登义,谢建春,杨世勇,沈浩.铜尾矿对小麦生长发育和生理功能的影响[J].应用生态学报,2001,12(1):126-128.
作者姓名:刘登义  谢建春  杨世勇  沈浩
作者单位:安徽师范大学生命科学学院,
基金项目:安徽省教育厅自然科学基金重点资助项目(2000JL094ZD).
摘    要:通过盆栽实验,分析了铜陵铜尾矿对小麦生长发育和生理功能的影响。结果表明,小麦种子能在铜尾矿上萌发,但发芽率和发芽速率均小于正常土壤中播种的小麦,高比例尾矿抑制小麦的株高,尾矿降低叶绿素含量,但对叶绿素a/b无影响,与对照组相比,尾矿组根系表现为变短变粗,须根数减少,尾矿能增加小麦根和茎叶部分生物量,且能明显提高根冠比,在尾矿胁迫下,小麦叶片的细胞膜透性和游离脯氨酸含量随尾矿比例增加而增大,可作为鉴定植物相对抗性的指标。

关 键 词:小麦  铜尾矿  种子萌发  幼苗生长  生理功能  污染  复垦
文章编号:1001-9332(2001)01-0126-03
修稿时间:2000年11月15

Effects of copper mine tailings on growth and development and physiological function of wheat
LIU Dengyi,XIE Jianchun,YANG Shiyong,SHEN Hao.Effects of copper mine tailings on growth and development and physiological function of wheat[J].Chinese Journal of Applied Ecology,2001,12(1):126-128.
Authors:LIU Dengyi  XIE Jianchun  YANG Shiyong  SHEN Hao
Institution:College of Life Science, Anhui Normal University, Wuhu 241000. ldy@mail.ahnu.edu.cn
Abstract:Through pot culture experiments,the effects of Tonling copper mine tailings on growth and development and physiological function of wheat were investigated in this paper.The results showed that the seeds of wheat could germinate in copper mine tailings,but seed germination percentage and germination rate were lower than that in control.High ratio tailings decreased seedling height.Tailings decreased chlorophyll contents,but didn't effect on chlorophyll a/b.Compared with control,tailings significantly inhibited root growth and decreased root number.Tailings increased root and shoot biomass and significantly increased root/shoot ratio of wheat.The permeability of cell membrane and the free proline content in leaves of wheat increased with the increase of the ratio of tailings, they were relative tolerance index of wheat to copper tailings stress.
Keywords:Wheat  Copper mine tailings  Seed germination  Seedling growth  Physiological function    
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