Growth Responses and Accumulation Characteristics of Three Ornamental Plants to Sn Contamination in Soil

Decorative ornamental plants have been applied as hyperaccumulators/phytoremediators to a wide spectrum of heavy metal contaminants. In this study, pot culture experiments were conducted investigate the Sn tolerance and accumulation in Impatiens balsamina L., Mirabilis jalapa L. Tagetes erecta order assess possibility these three be used phytoremediators Sn-contaminated soil. Results show that all exhibited strong contamination, no significant visual toxicity was observed for grown under most treatments. The amount accumulated positively correlated with concentration accumulative capacity > erecta. showed low translocation ability (TF) (<1), roots highest concentration, but relatively high bioconcentration factor (BCF, each part 100 mg/kg after treatment 500 mg/kg). Meanwhile, TF >1, fluorescence Sn. combination adaptation concentrations various metals, are potential candidates mining tailings or contaminated