Toxic Effect of Textile Mill Effluent on Cow Pea (Vigna unguiculata L.) Walp.

Abstract The aim of the present investigation was to assess the suitability of textile mill effluent (TME) (untreated) at different concentrations (Control, 2.5, 5, 15, 25, 50 75, and 100%) for irrigation purposes. Effect of textile mill effluent on seed germination, shoot and root length, fresh and dry weight, number of leaves, total leaf area, number of root nodules  and pigments of chlorophyll ‘a’, chlorophyll ‘b’ and total chlorophyll of cow pea was studied  at 15th  DAS of seedlings. All morphological growth parameters, pigment contents, were found to increase at 5% textile mill effluent concentration and it decreased from 10% effluent concentration onwards. So these results reflect that the textile mill effluent is toxic to crop and it can be used for irrigation purpose after a proper treatment with appropriate dilution.

Keywords Textile mill effluent, cow pea, germination percentage, plant biomass, pigment content.

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