Indole-3-acetic Acid (IAA) Assisted Phyto-extraction Potential of Ipomoea aquatica Exposed to Lead (Pb) Stress

Agricultural lands are gradually being contaminated by heavy metals (HMs) obtained from urbanization and human activities. Lead (Pb) is one of the major easily enters into food cycle causes different health abnormalities. So elimination this dangerous metal surface water crucial in regard phyto-extraction based phytoremediation an environmentally safe procedure. Again, removal process can be amplified through use plant growth regulators exogenously. With aim, experiment was conducted to know efficiency indole-3-acetic acid (IAA) on Pb aquatic hyper-accumulator Ipomoea aquatica. The plants were grown hydroponically with 200ppm treated IAA exogenous spray or mixed Hoagland solution (HS) both. control treatment HS supplemented Pb. From experiment, it observed that a great reduction parameters as suffered stress. Treatment Control + (spray+dissolve), produced tallest plants, longest roots maximum dry weight. On other hand, these got declined case (control). Maximum accumulated root, stem followed leaf for (spray+dissolve). caused less accumulation parts. So, bioaccumulation factor (BCF) shoot 35.87, 15.33 9.15 respectively (spray+dissolve) treatment. In root translocation, translocation (TF) value (0.5118) found (spray) than treatments. Again leaf, TF (0.6051) HM (Control) minimum (0.4469) (spray). study, confirmed that, successfully assist bodies aquatica potential hyper-accumulating plant.