Comparative Effects of Industrial Effluents and sub-metropolitan Sewage of Biratnagar on Germination and seedling growth of Rice and Blackgram

Abstract

Comparative effects of effluents from six major industries viz. Diesel Power House, Hetaunda Iron and Steel, Hulas Wire, Himalaya Soap and Chemicals, Leather Industry, Shah Udyog and sub-metropolitan Sewage of Biratnagar on germination and seedling growth of rice and black gram were studied. Effluent of Himalaya Soap and Chemicals showed toxic lethal effect on both the test crops. On germination rice remained more sensitive and susceptible to the toxic effects of industrial effluents but black gram proved to be more tolerant. Effluents of Diesel power House and Shah Udyog remained toxic for seedling growth of black gram as their effects were significant while Leather Industry effluent showed toxic effect on rice for germination as well as seedling growth. Keywords: Industrial effluents, Sewage, Germinationdoi:10.3126/on.v1i1.296Our Nature (2003) 1: 10-14