Abstract
The aim of the present study was to investigate the mitigating potential of activated charcoal (AC) on growth and metabolism of Pisum sativum L. in presence of benzoic acid (BA). BA in concentrations of 0.5, 1.0 and 1.5 mM was added. Activated charcoal at 20g/pot was used. 21 days old seedlings were used for biophysical and biochemical analyses. BA exhibited adverse effect on all parameters. AC significantly (p≤0.001) improved all parameters in combined treatment. Gradual decrease in growth parameters was recorded in BA treatment. Pigment, protein and sugar contents and nitrate reductase activity significantly decreased under different concentrations of BA. Activities of antioxidant enzymes viz. SOD, CAT and POX significantly enhanced under allelochemical stress to avoid the oxidative damage. AC in combination with BA caused maximum growth as compared with BA treatment. AC mitigated the allelopathic stress and altered the nutrient availability and plant growth in the presence of allelopathic stress. AC buttressed the defense system of pea seedlings in presence of BA.
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