Abstract: In order to study the drought resistance and water saving morphology effects of pacolbutrazol on A. fruiticosa, the pot experiment was carried out of six levels paclobutrazol applied on A. Fruiticosa, the morphology indexes were measured.The results showed that paclobutrazol inhibited effectively the height,leaf area,coverage,crown width,base diameter, increased the numbers.The proper concentration paclobutrazol could increase the coverage, crown width,base diameter,lift water and soil conservation effect and lodging resistance.Total consideration,D4 not only inhibited the height and leaf area of A. fruiticosa, decreased nutrient and water needs and water evaporation,increased drought resistance,increased coverage,crown width,base diameter,leaf colour to improve water and soil conservation and landscape effect, so D4 was the optimum concentration.
