Abstract
In the present study, accumulation and distribution of toxic metals (Cu, Cd, Cr, Zn, Fe, Ni, Mn, and Pb) and their biochemical effect on wheat and mustard plants irrigated with mixed distillery and tannery effluents are reported. Analyses of effluents and soil samples have shown high metal content than the permissible limit except Pb. Further, analyses of plant samples have indicated the maximum accumulation of Fe (340 mg kg −1 in wheat root and 560 mg kg −1 in mustard leaves) followed by Mn and Zn in root > shoot > leaves > seeds. Maximum increase in photosynthetic pigment was observed between 30 and 60 days while protein content was found maximum between 60 and 90 days of growth period in both plants. An increase in malondialdehyde, cysteine and ascorbic acid antioxidants content was also observed in root and leaves of treated plants upto 60 and 90 days of growth. Hence, wheat and mustard plants irrigated with effluents without adequate treatment are health hazards for environment, humans and animals.
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