Applying zinc in the soil or spraying it to the leaves of maize seedlings at the beginning of waterlogging treatment could reduce waterlogging injury. Both the degradation of chlorophyll and the accumulation of malondialdehyde(MDA) induced by waterlogging were inhibited by zinc, so was the related decrease of soluble protein and increase of peroxidase activity. Zinc could also significant delay the decrease of superoxide dismutase (SOD) and catalase activities. The number of adventitions root and growing ra...