Large quantities of hazardous heavy metals found in industrial wastes and are adequate to make crops toxic and these noxious metals accumulate in plant tissues can cause deleterious effects in plants. The current investigation was carried out to assess the physiological response of onion plants in textile effluents contaminated soil and to determine the role of silicone in the onion plant under oxidative stress. The industrial effluent was used at the rate of control, 30 %, 60 % and 100 % effluents. Following treatment applications were made (30 % +Si, 60 % +Si, 100 % effluents + Si,0 % +Si). Various physiological and enzymatic parameters were studied. The complete randomized design (CRD) with triplicates was used for the experiment. Treatment T4 (seed + 100 % effluents) was most toxic and 43 % shoot length, 51 % root length, 47 % membrane damage,74 % chlorophyll a,67 % chl b, 82 %carotenoids, and 44 %, catalase inhibition was observed over (T1). Similarly, MDA content and membrane damage were also higher in T4 (237,189 %) as control. The (seed+ Si) was found most effective in terms of onion growth which increased the shoot length, root length, chl a, chl b, carotenoids, and SOD (34, 51,70,284, 175, and 174 %) higher as compared to T1 respectively. It is concluded from the current investigation that textile effluents contain various toxic materials, especially heavy metals which can adversely affect the onion plant and silicon suppressed the toxicity of effluents in plant, Si can be used l to overcome toxic effect of industrial waste and plant growth promotion

来源平台：SCIENTIA HORTICULTURAE