Kaur Ramandeep, Bhatti Sandip Singh, Singh Sharanpreet, Singh Jaswinder, Singh Satnam
PG Department of Agriculture, Khalsa College, Amritsar, Punjab, India.
Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India.
Bull Environ Contam Toxicol. 2018 Nov;101(5):637-643. doi: 10.1007/s00128-018-2472-8. Epub 2018 Oct 25.
Phytoremediation, a technique dependent on the heavy metal bioaccumulation and translocation in different parts of plants, is an efficient and environment friendly method for decontamination of soils from metals. In the present study, the bioaccumulation and translocation of heavy metals was analyzed in different parts of cotton plant grown in intensively cultivated agricultural fields of Malwa region of Punjab, India. The soils were found to be alkaline in nature with very high sand contents which resulted in low retention of metals (As, Cr, Cu, Mn, Sr and Zn) in soils. But, the bioaccumulation factor and translocation factor calculated for metal accumulation analysis in cotton plant parts were found to be above 1 (maximum 9.13 for Sr) which indicated that the cotton plant (a non-edible fibre crop) can prove to be a significant system for phytoremediation and an efficient green tool for decontamination of soils from heavy metals.
植物修复是一种依赖于重金属在植物不同部位的生物积累和转运的技术，是一种高效且环境友好的土壤金属去污方法。在本研究中，对生长在印度旁遮普邦马尔瓦地区集约化耕种农田中的棉花植株不同部位的重金属生物积累和转运进行了分析。发现土壤呈碱性，砂含量很高，导致土壤中金属（砷、铬、铜、锰、锶和锌）的保留率较低。但是，计算得出的棉花植株各部位金属积累分析的生物积累因子和转运因子均高于1（锶的最大值为9.13），这表明棉花植株（一种非食用纤维作物）可被证明是植物修复的重要体系，也是土壤重金属去污的高效绿色工具。
