A STUDY ON STRESS IMPOSED BY FE3+ AND CU2+ ON AN AQUATIC MACROPHYTE (TRAPA NATANS) IN PRESENCE OF NITRATE AND PHOSPHATE UNDER SIMULATED NET HOUSE CONDITION

Abstract

The experiment was design and conduct in control environmental  condition  for the purpose to investigate the impact of given metals Fe³⁺ and Cu²⁺ in the presence of  nitrate and phosphate on the growth, protein level ( root, leaf, fruit ) production of photosynthetic pigments  in macrophyte  and its metal accumulation and removal capacity in the provided condition. T. natans survive very well with Fe³⁺ in presence of nitrate and phosphate by increasing in biomass 1.17% more than the Cu²⁺. In the protein level there is increment of 10.11%, 5%, 13.16% observed in leaf, root and fruit respectively. Photosynthetic pigments was observed 4.88% more in Fe³⁺ treated plant than that in Cu²⁺ treated plant and it was also noticed that bio accretion of Fe³⁺ was 8.8% more than of Cu²⁺. Its resulted that given plant also played an important role in the elimination or purging of pollutant/metal ions (Fe³⁺, Cu²⁺) in the maintenance of water quality, whereas in case of Fe³⁺ T. natans also tolerated the biochemical and physiological stress and have a positive characteristic  for the remedial process of polluted water.