Present investigation aims to understand oxidative stress and antioxidant metabolic enzymes response to distillery effluent application in few cultivars of paddy seedlings. Subjecting five cultivars of paddy viz., Jaya, Jyothi, Mandya Vijay and MTU-1001, to different dilution of effluent (viz. 6%, 12%, 25%, 50% and 100%) preliminary germination was conducted. Percent germination, root length and shoot length was almost similar in control and 6% dilution of distillery effluent, with further increase in concentration, gradual inhibitory effect was noticed, whereas complete inhibition was observed at 100%. Physio-chemical analysis of effluent reveals that it is rich in both organic and inorganic load. Catalase and peroxidase activity increase significantly under the effluent in paddy seedling indicating osmotic stress with increase in effluent concentration at different level of germinating stages. Further, these results were supported by high level of carbohydrate, under oxidative stress. Overall results clearly indicate oxidative stress is due to high organic and inorganic load, distillery effluents belong to irrigation water class of ‘increasing problem’ to ‘severe problem’ with respect to change in soil pH and specific ion toxicity. Hence, it is recommended that before discharge of distillery effluent further treatment is necessary to cut down the excess of organic and inorganic load in waste water.
Loading....