Abstract:

In order to evaluate the drought-resistance of the five species of sedum (Sedum spectabile Borea, S. hybridum, Sedum spurium cv. coccineum, S. nicaeense, Sedum sp.), which is commonly-used in urban landscape greening project. By the method of artificial simulation, the drought resistance of 5 Sedum under drought stress was evaluated with subordinate function, and the physiological and biochemical indexes such as growing development indexes, photosynthetic physiology, water physiological properties, activities of superoxide dismutase (SOD) and peroxidase (POD) were measured. The results indicated that the order of drought resistance was: Sedum spectabile Borea>Sedum spurium cv.coccineum> Sedum sp.>S. hybridum >S. nicaeense.