| 重金属Zn2+胁迫对萝卜种子萌发及幼苗生长和叶绿素合成的影响 |
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| 引用本文： | 何九军,王瀚,杨小录.重金属Zn2+胁迫对萝卜种子萌发及幼苗生长和叶绿素合成的影响[J].安徽农业科学,2011,39(33):20348-20350. |
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| 作者姓名： | 何九军 王瀚 杨小录 |
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| 作者单位： | 陇南师范高等专科学校生物与化学系,陇南甘肃,742500;陇南师范高等专科学校生物与化学系,陇南甘肃,742500;陇南师范高等专科学校生物与化学系,陇南甘肃,742500 |
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| 基金项目： | 陇南师范高等专科学校校级重点科研项目 |
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| 摘 要： | 目的]研究Zn2＋胁迫对萝卜（Raphanus sativus L.）种子萌发及幼苗生长和叶绿素含量的影响,从而更好地认识重金属Zn2＋对绿色植物生长发育的胁迫作用。方法]萝卜种子为宝萝一号。Zn2＋浓度梯度为12.5、25.0、50.0、100.0 mg/ml,以去离子水为对照。结果]Zn2＋浓度变化并不影响萝卜种子萌发率,但随着浓度的增加,对萝卜幼苗形态、根长、根毛的产生及叶绿素的含量均有一定程度的抑制作用。结论]该研究可以为进一步进行土壤修复提供科学依据。
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| 关 键 词： | Zn2+ 萝卜种子 种子萌发 幼苗生长 叶绿素含量 |
Effects of Zn2+ Stress on Radish(Raphanus sativus L.)Seeds Germination, Seedlings Growth and Chlorophyll Content |
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| Institution: | HE Jiu-jun et al(Department of Biology and Chemistry,Longnan Teachers’ College,Longnan,Gansu 742500) |
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| Abstract: | Objective] The research aimed to study the effects of Zn2+ stress on radish seeds germination,seedling growth and chlorophyll content,to better know the stressing effects of heavy metal Zn2+ on growth and development of green plant.Method] The radish seed was Baoluo1hao.Zn2+ concentration was 12.5,25.0,50.0 and 100.0 mg/ml,respectively.Take deionized water as control.Result] The results showed that Zn2+ concentration changes could not affect seeds germination of radish.While with the increasing of it,the morphology,root length,form of root hair and the content of chlorophyll of radish seedlings were inhibited extensively.Conclusion] The study provides a scientific basis for further carrying out soil remediation. |
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| Keywords: | Zn2+ Radish seeds Seeds germination Seedling growth Content of chlorophyll |
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