1984年我们在试验苗木抗旱的基础上配制了粉末状药剂,应用其水溶液浸沾苗根,可使苗木多项生理指标改变,增强苗木的抗旱性和生活力,提高造林成活率。被处理苗木生理指标的分析方法是,用压力室法测定苗木的水势;用风干、烘干称重法测定自由水和束缚水;快速称重法测定蒸腾速率;茚三酮比色测脯氨酸;蒽酮比色法测可溶性糖;高锰酸钾滴定法测过氧化氢酶;SF30型植物生产力荧光计测光合潜力。 In 1984, we formulated powdery medicaments on the basis of experimenting drought resistance of seedlings. Applying the aqueous solution soaked in the seedling roots can change a number of physiological indexes of seedlings, enhance the drought resistance and viability of seedlings, and improve the survival rate of afforestation. The physiological indexes of seedlings were analyzed by pressure chamber method to determine the water potential of seedlings; Freeze and irreducible water were measured by air-dry and dry-weighed method; The transpiration rate was determined by rapid weighing method; Acid; anthrone colorimetric method to measure soluble sugar; potassium permanganate titration method to measure catalase; SF30 type plant productivity fluorescence measure photosynthetic potential.