Heavy-Metal Phytoextraction Potential of Spinach and Mustard Grown in Contaminated Calcareous Soils

Autor:	E. Rafique, Kazi Suleman Memon, Vishandas Suthar, M. Mahmood-ul-Hassan
Rok vydání:	2013
Předmět:	Cadmium biology Extraction (chemistry) Soil Science chemistry.chemical_element Ethylenediaminetetraacetic acid Bioconcentration biology.organism_classification Phytoremediation chemistry.chemical_compound Agronomy chemistry Environmental chemistry Shoot Soil water Spinach Agronomy and Crop Science
Zdroj:	Communications in Soil Science and Plant Analysis. 44:2757-2770
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103624.2013.812733
Popis:	Laboratory batch and greenhouse pot experiments were conducted to determine the extraction efficiency of ethylenediaminetetraacetic acid (EDTA) for solubilizing lead (Pb) and cadmium (Cd) and to explore the natural and chemically induced Pb and Cd phytoextraction efficiencies of spinach and mustard after EDTA application. The EDTA was applied at 0, 1.25, 2.5, and 5.0 mM kg−1 soil in three replicates. Addition of EDTA increased significantly the soluble fraction Pb and Cd over the control and maximum increases for Pb (1.42- and 1.96-fold) and Cd (1.45- and 1.38-fold) were observed with the addition of 5.0 mM EDTA kg−1 in Gujranwala and Pacca soils, respectively. Similarly, addition of EDTA increased significantly the Pb and Cd concentrations in the plant shoots, soil solution, bioconcentration factor, and phytoextraction rate. Mustard exhibited better results than spinach when extracting Pb and Cd from both contaminated soils.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f7d85bfc3d7b0b8b40f7599479f086b3 https://doi.org/10.1080/00103624.2013.812733 Zobrazit plný text záznamu