[1]吴鹏,周青.大豆种子萌发对镉胁迫响应的观察[J].大豆科学,2009,28(05):853-855.[doi:10.11861/j.issn.1000-9841.2009.05.0853]
　WU Peng,ZHOU Qing.Response of Soybean Seed Germination to Cadmium Stress[J].Soybean Science,2009,28(05):853-855.[doi:10.11861/j.issn.1000-9841.2009.05.0853]
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大豆种子萌发对镉胁迫响应的观察

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第28卷 期数: 2009年05期 页码: 853-855 栏目: 出版日期: 2009-10-25
Title:
Response of Soybean Seed Germination to Cadmium Stress
文章编号:
1000-9841(2009)05-0853-03
作者:
吴鹏1; 周青1; 2
1.江南大学环境与土木工程学院 环境科学研究室，江苏 无锡 214122；
2.江南大学 工业生物技术教育部重点实验室，江苏 无锡 214122
Author(s):
WU Peng1; ZHOU Qing1; 2
1.Laboratory of Environmental Science，School of Environmental and Civil Engineering，Jiangnan University，Wuxi 214122，Jiangsu;
2.Key Laboratory of Industrial Biotechnology，Ministry of Education，Jiangnan University，Wuxi 214122，Jiangsu，China
关键词:
大豆种子; 镉; 萌发
Keywords:
Soybean seeds; Cadmium; Germination
分类号:
S565.101
DOI:
10.11861/j.issn.1000-9841.2009.05.0853
文献标志码:
A
摘要:
为了解土壤中镉(Cd2+)对作物种子萌发的影响，揭示Cd2+对作物生产的伤害机理，采用水培法研究了不同浓度的Cd2+溶液对大豆种子萌发过程中发芽率、发芽势、发芽指数、活力指数变化的影响。结果表明：当Cd2+溶液浓度为3 mg.L-1时，发芽率受Cd2+溶液浓度的影响不大，发芽指数与活力指数都高于对照。随着Cd2+溶液浓度的升高，发芽率、发芽指数、活力指数均逐渐降低，抑制效应逐渐增强;种子的发芽势则显著降低，抑制作用显著增强，说明低浓度Cd2+对大豆种子萌发具有促进作用，而高浓度的Cd2+则具有抑制作用。
Abstract:
In order to understand the effects of soil cadmium（Cd2 +）on crop seed germination and reveal the mechanism of the impact on crop，hydroponic culture was used to study the impact of different concentrations of Cd2+solution（0，3，6，9 mg.L-1）on soybean seed germination.The germination rate，germination energy，germination index and vigor index were investigated under the Cd2+stress.Under 3 mg.L-1 Cd2+solution treatment，the germination rate was less affected，while seed germination index and vigor index were all higher than those of control .With the Cd2+solution concentration increased，the germination rate，germination index and vigor index decreased gradually，and seed germination energy decreased significantly.Results indicates that lower concentration of Cd2+could promote seed germination，while higher concentration of Cd2+could inhibit seed germination in soybean.

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备注/Memo

基金项目：江南大学质量工程建设资助项目(20081218)；江苏省教育厅“高等学校大学生实践创新训练” 资助项目 (20070730)。

作者简介：吴鹏 (1985-), 男，硕士，研究方向为环境生态学。
通讯作者：周青，教授。E-mail:zhouqeco@yahoo.com.cn。

更新日期/Last Update: 2014-09-17