Abstract: to study the different concentrations of Mn2 + with soilless cultivation of Chinese cabbage seedlings after 4 days, 8 days, 12 days, the laid in the influence of the physiological and biochemical
understand the mechanism of resistance to heavy metal toxicity of Jatropha curcas. The results show that: in different concentrations of manganese stress, Jatropha curcas leaves chlorophyll content and peroxidase decre