Role of Phytoremediation in Reducing Cadmium and Nickle Toxicity in Soil Using Species (Cyndon dactylon L.)

Using plants for removing heavy metals from contaminated soils is an economical and effective strategy. Phytoremediation is one of the suggested methods that plants absorb and accumulated heavy elements in plants. The purpose of this study was to investigate the feasibility of Cadmium (Cd) phytoremediation from soil using Bermuda grass.

This experiment was conducted in a completely randomized design with four levels of (Cadmium nitrate) Cd (NO3)2 (0, 20, 50, 60 mg/ kg soil) and Nickle solution (NiCl2×6 H2O) (0, 150, 300,450 mg/ kg soil) with three replications in the Research Institute of Petroleum Industry. 

The obtained results of the analysis of variance showed that metal significantly affected traits such as shoot and root dry weight, plant height, stomatal resistance, chlorophyll and antioxidant enzymes. It was also observed that Cd accumulation in plant root increased with increasing cadmium concentration. Furthur, Ni accumulation in the root tissues was higher in all the treatments than aerial parts.

According to the findings, seedlings of Cyndon dactylon can be suggested for Ni and Cd remediation in polluted soils.