Physiological And Biochemical Response Of Lycium Barbarum L. To Water-Salt Stress

Two-year-old young trees of Lycium barbarum L. were used as material in this research.Through field test, the changings in growth trait and physiological and biochemical characteristics were studied, and the paper preliminarily discussed the response to water-salt stress and interaction and the effect on growth. The object of this research was to find the optimum soil salt content range and the optimum soil water content range based on the damage degree of Lycium barbarum L. by salt and managed to offer theoretical experiences to consul for the introduction and cultivation of Lycium barbarum L. in the west arid and half arid areas. Main results were as follows:1 The research determined that under 0.3%～0.6% soil salt content conditions, the soil water content range was 22.37%～13.52% and on the conditions of which the young shoot growth of Lycium barbarum L. was larger; under 22.37%～17.13% conditions, the osmoreregulation matters were higher; under 22.37%～13.52% conditions, the protective enzymes activity was higher; under 22.37%～12.95% conditions, the photosynthetic capacity was stronger.2 The research put forward that Lycium barbarum L. could grow nomally under 0.3%～0.6% soil salt content conditions and the tolerable soil water content was 9.87%; the optimum soil water content range was 22.37%～13.52%.