For the sake of discussing the physiological and ecological response and resistance difference to cadmium (Cd) of plants in different developmental stages under the intimidate of Cd, a pot experiment was conducted to study the dynamics of seedling growth and chlorophyll contents, SOD (superoxide dismutase) activities, POD (Peroxidase) activities and MDA (malondialdehyde) contents in leaves of Glycine max (Wu Yue Wang and Ri Ben Qing) under the stress of Cd in seedling stage, flowering-poding early stage and flowering-poding advanced s...