Impact of sugar industry effluent on the phenology of green gram variety LGG 460

The present study was undertaken to determine the effect of sugar industry effluent on phenological parameters of locally cultivated variety of green gram LGG 460. In this study the physical and chemical parameterslike pH(6.56), TDS(510mg/l), BOD(550 mg/l), COD(680 mg/l), EC(1.056ms/cm²), chlorides(162 mg/l), sulpates (12 mg/l), nitrates of sugar industry effluent were analyzed. The chemical characteristics of effluent water indicated that there is high organic and inorganic content, high amount of suspended solids and acidic load. Regular use of this effluent adversely affects the soil and crop yield. A study was conducted to know the effects of different concentrations(20, 40, 60, 80, 100) of sugar industry effluent on growth parameters of LGG 460 variety of green gram. The study revealed that the growth was affected and there is a variation in germination, the length of shoot, length of leaves, width of leaves, time of flowering, etc. In low concentration of effluent more number of plants were survived, their growth and size of leaves are higher when compared to high concentration of effluent water. This study reveals that there is a wide variation among the plants grown with different concentrations of sugar industry effluent.