Effect of Treated Textile Mill Effluent on Seed Germination and Seedling Growth of Urd Varieties

Treated industrial waste water is a non-conventional resource to meet the irrigation water-demand. It was seen that the application of partially diluted textile effluent (treated) enhanced the root and shoot length in many crop plants. An experiment was conducted to the study the effect of treated textile mill effluent on seed germination and seedling growth of four varieties of Urd bean (PU-35, PU-19, IPU94-1 and TYPE-9). It was found that the treated effluent from the textile industry can be used as irrigation purpose because it has low BOD (Biological oxygen demand) (32 mg/l), COD (Chemical oxygen demand) (232 mg/l), pH (7.4) which is slightly alkaline and is colourless that is without dye and pigments (Table-1). It was found that 50% treated effluent concentration was the most favourable for better growth of seedling and also for root and shoot length than the Control of all varieties of Urd bean. The lowest seedling growth was recorded at the 100% effluent concentration for the all varieties of Urd bean. Thus at higher effluent concentration such as 75 and 100% the lengths of root and shoot and seedling growth were inhibited. Therefore, 50% treated effluent concentration must be recommended for irrigation purpose of many crops and vegetables. This will also reduce the pollution load because of utilisation of waste water from industries in agriculture.

Physiochemical analytical data of the treated effluent sample