Exogenous EBR on alleviating copper stress in tomato seedlings

Through nutrient solution cultivating in greenhouse, the tomato cultivar, Gailiang Maofen 802F1, was selected as the plant material to investigate the effects of 2,4-EBR on anti-oxidizing enzyme system and growth under copper stress. The results show that the exogenous EBR could effectively improve the activities of anti-oxidizing enzyme systems (POD, SOD, CAT, APX) in leaves and root activity under the copper stress, while the MDA content is remarkably reduced. As an effect of a long period, the content of chlorophyll and plant weight are significantly increased. For mineral elements, excessive copper obviously enhances the copper uptake and transplant in tomato plant,