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Abstract
Disperse dyes with less solubility in water is considered be an efficient dye that can be used for the coloration of the polyester, cationic or cellulosic fibers. Amongst them polyester fibers are most difficult to colour because of lack of ionic properties which contributes towards their hydrophobicity. They are grouped under the azo dyes, which is responsible for them being toxigenic in nature. In this study, the toxicity of such dye was analyzed on Vigna radiata(moong) plant on the basis of radical and plumule growth and percent germination. A comparison of the above parameters was done with dye, wheat bran treated, acid and alkali modified wheat bran treated dye and also by organism (Schizophyllum- S4) treated dye on the plant. The study has revealed that under all the conditions 100% germination of seeds were observed, with around 35% and 15% increase in radical and plumule growth by Schizophyllum-S4 treated dye (initial concentration 100mg/L) after 10 days of growth, with only 0.84% and 0.007% reduction of chlorophyll a and chlorophyll b, respectively under the same condition in comparison to the control (plant without aqueous solution of dye).