The bioaccumulation of Zinc (Zn) by Scirpus mucronatus, in Hoagland solution enriched with 2.0, 4.0, 8.0, 16.0 and 32 mg L-1 of Zn supplied as Zinc Sulphate (ZnSO4) for a period of 2, 4, 6, 8 and 10 days. The accumulation of Zinc in plant depending on time and concentration was measured by atomic absorption spectrophotometer (AAS Perkin Elmer Model 3110). The results showed that under experimental conditions (pH- 6.0±1, T- 24±1, Photoperiod- 16h), S. mucronatus (L.) are able to accumulated considerably amount of Zn. Removal of the metals from the solution reached the maximum on the 8th day. The accumulation of Zn increased with the increasing concentration. The highest accumulation was observed in the root then by shoot tissues. The bioconcentration factor (BCF) for the metal was found to be maximum on the 8th day exposure.
Keywords Scripus mucronatus, Zinc, phytoaccumulation, Bioconcentration (BCF).