V. DINESH KUMAR and S.J. RAHMAN, K.G.G.U.D.R.D.P.S.S. 2023. IMPACT OF CHEMICAL MUTAGENESIS USING ETHYL METHANE SULPHONATE ON CASTOR SEED GERMINATION AND SEEDLING VIGOUR. The Journal of Research, PJTSAU. 50, 2 (May 2023).