Tomato plant is a silicon-excluder and therefore an ideal plant material for studying the physiological and biochemical mechanisms of silicon-mediated resistance to various environmental stresses including salinity. However, there is relatively little research on the effect of silicon on salt resistance in tomato plant and the underlying mechanisms. In this study, the effects of exogenous silicate on plant growth, root characteristics, photosynthesis, osmotic adjustment and activities of antioxidant enzymes...