With Nanjing Baihao as a testing plant growing in pots of Cd-contaminated sandy soil,growth and Cd accumulation properties of the plant were investigated.Growth of the plant was promoted with chlorophyll concentration increased when the concentration of CdCO3 ranged from 20 to 100 mg/kg.And when the concentration reached 120~240 mg/kg in the sandy soil,the growth was slightly inhibited,but the dry matter and branches per plant and chlorophyll concentration were not reduced to the level of the control;Cd concentration in the root,stem and leaves of seleng wormwood was positive related to that of the sandy soil.Among these tissues,the roots accumulated most of the Cd in the plant,making Cd concentration therein upto 532.9 mg/kg,about 7.2 times or 4.4 times on average as much as in the maxium.In terms of Cd concentration,the tissues of the plant were in the following order,roots > stems > leaves.
参考文献
相似文献
引证文献
引用本文
潘静娴,李新国,沈健,姚海燕. Cd污染下蒌蒿生长和Cd蓄积特性的研究[J].土壤,2006,38(2):181-185. PAN Jing-xian, LI Xing-guo, SHEN Jian, YAO Hai-yan. Growth and Cd Accumulation Properties of Seleng Wormwood in Cd-Contaminated Sandy Soil[J]. Soils,2006,38(2):181-185