Abstract:To investigate effect of chitosan on seed germination and some physiological characteristics of maize, seed and seedling of maize were treated with different concentration of chitosan. The results showed that three concentration of chitosan could increase seed germination percentage, germination index, seedling height, POD activity, α-amylase activity, the content of soluble sugar and chlorophyll. In all of three concentrations, the concentration of 0.2% was the best.