With gardening plant lythrum salicaria being cultured through flowerpot, this experiment makes a systematic study of the impact of Cd and Pd stress on such facets as the seed germination,and the physiology, biochemistry and growth of lythrum salicairia seedlings. It is also analyzed in the study whether lythrum salicairia is a fine plant easing heavy metal contamination, which will further provide theoretical foundation for the selection of the variety of trees to easing both soil and water pullotion. It ca...