PJB-2018-719
TO INVESTIGATE THE NATURAL AND ARTIFICIAL POTENTIAL OF PLANT RICINUS COMMUNIS IN CADMIUM EXTRACTION WITH THE APPLICATION OF MACRONUTRIENTS AND PHYTOHORMONES
Fazal Hadi
Abstract
Cadmium toxicity is the supreme challenge for living beings of the world. Scientists struggle to adopt a technology for the removal of Cd from the environment. For this purpose, the current study was conducted for Phytoremediation of metals, especially cadmium with the application of exogenous substances, like micronutrients (NPK) and phytohormones [Gibberellic acid (GA3) and Indole acetic acid (IAA)] to increase plant biomass, improving phytoextraction of Cd and the stimulation of endogenous proline and phenols in plant Ricinus communis, grown in soil contaminated with 100 mg Cd/ Kg. plant hormones were used only as foliar spray while growth regulators were applied to soil and also used as foliar spray. T4 (Cd+NPK AS) significantly increased root length, T12 (GA3+NPK FS) highly increased stem length and leaf length as compared to control C1 (plant only Cd). FBM was highly increased by N alone or in combination with P, K and GA3 foliar sprayed in plant. Conclusively it was found that NPK (foliar) in combination with GA3 followed N and IAA, most significantly increased biomass, Cd concentration and accumulation in all the treated plants of Ricinus. Cadmium bio-concentration values for Ricinus were higher than unity (1) i.e. + 2.54. Highest significant concentration of phenolic and proline in Ricinus were recorded in combination treatments of GA3 and NPK foliar spray while in other plants in NPK addition into soil treatment. Ricinus plant may be potentially and naturally as hyper accumulator and further study is required for its industrial implementation in polluted soil.
To Cite this article:
Download
