Effect of Zn on the Complexion and Physiological Property of Pisumsativum Seedlings Under Pb Stress

The study on the effect of the Zn in different concentration on the germination and growth of pea seed under Pb stress were investigated by water culture method.The results showed that low concentration Zn(≤50 mg/L) can stimulate the growth of the pea seedling under the Pb stress,increase the activity of isoenzyme and chlorophyll content of seedling,can remittence the poisoning action of the Pb.When Pb and Zn concentration to be 10 mg/L the effect of the remittence poisoning action was the most.But when the concentration of Pb was more than 200 mg/L and the concentration of the Zn came to 200 mg/L,the Zn cooperate with the Pb to aggravate the poisoning action of the pea seedling.