Abstract:

This paper summarizes the research advance in the morphological response of plant in order to supply basis for choosing waterlogging resistance plants in the regions suffering flooding. Flooding stress causes low light condition, as a result, gas diffusion is limited and the content of chlorophyll is degraded, finally photosynthetic rate of plants is declined. To adapt to submergence, plants develop some morphology characteristics, including producing aerenchyma, adventitious roots and larger lenticels, promoting stem elongation and wilting of leaves. So that they can maintain available oxygen diffusion, efficient absorption and a high energy level to ensure its normal physiological functions and plant metabolism. Further study on genes related to plant morphology adaptation and forecasting plant waterlogging resistance of field plants by data obtained in laboratory, and site-specific observation of flooding stress on forests are important aspects in the future.