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| 根相对伸长率不能反映大白菜对镉的耐性差异 | |
| 引用本文： | 刘志华,伊晓赟,王火焰,高豫汝,沈仁芳.根相对伸长率不能反映大白菜对镉的耐性差异[J].土壤,2007,39(6):924-927. |
| 作者姓名： | 刘志华 伊晓赟 王火焰 高豫汝 沈仁芳 |
| 作者单位： | 1. 土壤与农业可持续发展国家重点实验室(中国科学科院南京土壤研究所),南京,210008;中国科学院研究生院,北京,100049 2. 土壤与农业可持续发展国家重点实验室(中国科学科院南京土壤研究所),南京,210008 3. 南京市雨花台区农林局,南京,210012 |
| 基金项目： | 国家科技支撑计划;中国科学院知识创新团队国际合作伙伴计划项目 |
| 摘 要： | 以14种大白菜为材料,研究根的相对伸长率与蔬菜地上部Cd耐性之间的关系.结果表明,种子根的相对伸长率与大白菜苗期的Cd耐性没有相关性,因而用种子根相对伸长率不能衡量大白菜对Cd的耐性.大白菜地上部Cd含量与Cd耐性指数呈负相关,表明Cd耐性强的大白菜地上部Cd的累积量相对较低. |
| 关 键 词： | 根相对伸长率 大白菜 锅 耐性 |
Relative Root Elongation Cannot Represent the Cd Tolerance of Chinese Cabbage |
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| LIU Zhi-hu,YI Xiao-yun,WANG Huo-yan,Gao Yu-ru and SHEN Ren-fang.Relative Root Elongation Cannot Represent the Cd Tolerance of Chinese Cabbage[J].Soils,2007,39(6):924-927. | |
| Authors: | LIU Zhi-hu YI Xiao-yun WANG Huo-yan Gao Yu-ru and SHEN Ren-fang |
| Institution: | State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China;Graduate School of the Chinese Academy of Sciences, Beijing 100049, China,State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China;Graduate School of the Chinese Academy of Sciences, Beijing 100049, China,State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China,Yuhuatai District Bureau of Agriculture and Forestry, Nanjing 210012, China and State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China |
| Abstract: | Fourteen Chinese cabbage cultivars were employed to study the relationship between relative root elongation under Cd stress and their tolerance to Cd. The results indicated that relative root elongation had no correlation with the Cd tolerance index of Chinese cabbage at seedling stage. The relative root elongation couldn''t represent their Cd tolerance. The Cd content in shoots had a negative correlation with the tolerance index, which suggested that Chinese cabbage with higher tolerance to Cd had lower Cd content in shoot. |
| Keywords: | Relative root elongation Chinese cabbage Cd Tolerance |
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