[1]曾维超,罗文亮,罗金玲,等.镉对上海青种子萌发及生长生理特性的影响[J].黑龙江农业科学,2020,(01):62-67.[doi:10.11942/j.issn1002-2767.2020.01.0062]
　ZENG Wei-chao,LUO Wen-liang,LUO Jin-ling,et al.Effects of Cadmium on Germination,Seedling Development and Physiological and Biochemical Characteristics of Brassica rapa var.chinensis L.[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(01):62-67.[doi:10.11942/j.issn1002-2767.2020.01.0062]
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镉对上海青种子萌发及生长生理特性的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2020年01期 页码: 62-67 栏目: 出版日期: 2020-01-10
Title:
Effects of Cadmium on Germination,Seedling Development and Physiological and Biochemical Characteristics
of Brassica rapa var.chinensis L.
作者:
曾维超1; 罗文亮2; 罗金玲1; 麦淑华1; 黄东华2; 陈大清2
1.仲恺农业工程学院 园艺园林学院，广东 广州 510225；2.仲恺农业工程学院 农业与生物学院，广东 广州 510225
Author(s):
ZENG Wei-chao1; LUO Wen-liang2; LUO Jin-ling1; MAI Shu-hua1; HUANG Dong-hua2; CHEN Da-qing2
1.College of Horticulture and Landscape Architecture，Zhongkai University of Agriculture and Engineering，Guangzhou 510225，China;2.College of Agriculture and Biology,Zhongkai University of Agriculture and Engineering，Guangzhou 510225，China
关键词:
上海青; 镉; 发芽率; 生长指标; 生理特性
Keywords:
Brassica rapa var.chinensis L.;  cadmium;  seed germination;  growth and physiological effects
DOI:
10.11942/j.issn1002-2767.2020.01.0062
文献标志码:
A
摘要:
为保障农产品安全和生态安全，以上海青（Brassica rapa var.chinensis L.）作研究材料，生理生化指标。结果表明：当镉浓度≤5 mg?L-1时，镉对上海青种子萌发、芽和根的伸长、鲜重质量、生物量等没有显著影响，随着镉浓度的增加，对种子萌发和幼苗的茎长、根长、鲜重质量、干重质量都有显著的抑制作用，幼苗体内保护酶活性增加，幼苗生长受到抑制。 结果表明上海青为镉敏感植物，可作为土壤镉污染的指示植物。
Abstract:
For the safety of agricultural products and ecological security，the seeds of Brassica rapa var.chinensis L.were dealed with different concentrations（5，10，50，100，200，300 mg?L-1 ）of CdCl2.The physiological and biochemical indexes were observed and measured.The results showed that,when the concentration of Cd2+ is 5 mg?L-1 or less,Cd2+has no significant impact onthe indexes.Signidicant diffrence of germination rate,germination potential,root length,plant height,fresh weight and dry weight between low concentration of Cd2+ group and hight concentration of Cd2+ was observed ,suggsting that hight concentration of Cd2+has a obvious inhibitory effect on Brassica rapa var.chinensis L.But seedling enzyme activity increased,seedling growth is restrained.As shown in the results that Brassica rapa var.chinensis L.was a cadmium sensitive plant and could be used as an indicator of soil cadmium pollution

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备注/Memo

收稿日期：2019-09-03基金项目：国家自然科学基金（31560579）；广东省科技计划（2015A030302081）；广东省教育厅人才引进项目(粤财教2010343号)；广东省技术质量监督局项目（粤财农[2017]66号）资助。

第一作者：曾维超（1995-），男，在读硕士，从事环境污染与植物修复研究。E-mail: zengvivi@foxmail.com。
通信作者：陈大清（1962-），男，博士，教授，从事植物逆境生理分子生物学研究。E-mail:daqingchen@vip.sina.com。

更新日期/Last Update: 2020-04-19