Ameliorating Effect of Fertilizers on Biochemical Characteristics of Vigna radiata Treated with Hexavalent Chromium

B. Dheeba and P. Sampathkumar

Department of Chemistry and Biosciences,Srinivasa Ramanujan Centre, SASTRA University, Kumbakonam – 612 001, India.

ABSTRACT: The aim of the present study is to compare the ameliorating potential of Cr toxicity in Vigna radiata by Farm Yard manure (FYM), NPK, Panchakavya (PK) and Vermicompost (VC). Pot experiment was selected and potassium dichromate was used as the source of chromium. Test group soil was contaminated with 30 mg/kg chromium. The effect of used fertilizers on antioxidant enzymes and pigments were analyzed. The ameliorating potential of fertilizers were compared by providing chromium alone and chromium with fertilizers. The antioxidant enzymes increased in chromium treated plants and slightly decreased by the application of fertilizers. Fertilizer application reduces the chromium accumulation in roots and shoots slightly and prevents oxidative damage. The plant pigments was much affected by Cr but brought back to normalcy by fertilizers. The ameliorating potential of NPK is much better than other fertilizers which accumulates moderate level of Cr in shoot and root but alleviates its effects.

KEYWORDS: Hexavalent chromium; Vigna radiata; Pigments; Antioxidant enzymes

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