Role of ultra violet (UV-C) radiation in the control of root infecting fungi on groundnut and mung bean

Seeds of mung bean (vigna radiata (l.) wilczek and groundnut (arachis hypogaea l.) were treated with ultra violet (uv-c) radiation for 0,5,10,15,20,30 and 60 minutes for the estimation of growth parameters and root infecting fungi like macrophomina phaseolina (tassi) goid,rhizoctonia solani kühn and fusarium spp. it was observed that both crop plants showed increment in shoot weight,shoot length,root length and root weight,leaf area and number of nodules when seeds of groundnut and mung bean were treated with uv-c for 10,15,30 and 60 minutes period. uv-c exposure for 0-60 minutes showed reduction in root infecting fungi whereas 15,20 and 30 minutes exposure with uv-c gave significant result in increment of total chlorophyll and carbohydrate contents.