| 镉和铅在莲藕各器官中累积规律的研究 |
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| 引用本文： | 许晓光,卢永恩,李汉霞.镉和铅在莲藕各器官中累积规律的研究[J].长江蔬菜,2010(14):53-56. |
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| 作者姓名： | 许晓光 卢永恩 李汉霞 |
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| 作者单位： | 华中农业大学园艺林学学院,园艺植物生物学教育部重点实验室,国家蔬菜改良中心武汉分中心,湖北,武汉,430070;华中农业大学园艺林学学院,园艺植物生物学教育部重点实验室,国家蔬菜改良中心武汉分中心,湖北,武汉,430070;华中农业大学园艺林学学院,园艺植物生物学教育部重点实验室,国家蔬菜改良中心武汉分中心,湖北,武汉,430070 |
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| 基金项目： | 公益性行业(农业)科研专项经费项目 |
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| 摘 要： | 以在施有不同浓度镉（Cd）或铅（Pb）的土壤中栽培的莲藕（鄂莲5号）为材料,对Cd和Pb在莲藕各器官中的累积规律进行了研究。结果表明：莲藕各器官Cd,Pb的累积量随外施浓度的增加而增加,但不同器官对Cd、Pb的累积规律不尽相同。Cd和Pb在匍匐茎中积累量最高,当土壤外施Cd浓度低于0.6mg/kg、Pb浓度低于250mg/kg时,藕中的积累量较低,但当添加量超过该浓度时,藕中的积累量则急剧上升。
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| 关 键 词： | 莲藕 重金属 铅 镉 累积规律 |
Accumulative Law of Cd and Pb in Different Organs of Lotus (Nelumbo nucifera Gaertn.) |
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| XU Xiaoguang,LU Yongen,LI Hanxia.Accumulative Law of Cd and Pb in Different Organs of Lotus (Nelumbo nucifera Gaertn.)[J].Journal of Changjiang Vegetables,2010(14):53-56. |
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| Authors: | XU Xiaoguang LU Yongen LI Hanxia |
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| Institution: | (Department of Forestry and Horticultural,Huazhong Agricultural University/Key Laboratory of Horticultural Plant Biology,Ministry of Education,Wuhan 430070 ) |
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| Abstract: | Heavy metals such as Cd and Pb can cause serious contamination of lotus. In this research,the concentration of Cd and Pb in different organs of lotus （Elian NO.5） after supplied different concentration of Cd and Pb to the soil were studied. The results showed that the concentrations of Cd and Pb in all tested organs were increased when more Cd and Pb were added to the soil,but the accumulative law of these organs were different. Creeping stem can accumulate more Cd and Pb than other organs. The lotus root can accumulate less heavy metal when the supplied Cd and Pb to the soil were lower than 0.6 mg/kg and 250 mg/kg,respectively. Accumulation was increased rapidly when the supplied Cd and Pb to the soil were beyond these concentrations. |
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| Keywords: | Nelumbo nucifera Gaertn Heavy metal Cd Pb Accumulative law |
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