本文对木麻黄水培育苗的各种技术措施进行了探讨、研究和改进。研究结果表明,影响木麻黄小枝水培生根的内因是植株本身的遗传性;外因有水培时期的温度、光照、采穗母树的树龄、穗条在母树上的部位、同一家系子代不同个体以及小枝采用生长素处理技术等。其中温度为主要因素,福建省木麻黄小枝水培应在日平均气温达25℃以上进行。 In this paper, various technical measures of cultivating seedlings of Casuarina water were discussed, studied and improved. The results showed that the internal factors affecting the rooting process of Casuarina equisetifolia were the genetic inheritance of the plant itself. The external factors were the temperature, illumination, the age of the sprouting tree, the position of the spike in the tree, And branchlets using auxin treatment technology. Which temperature is the main factor, Fujian Casuarina water branch should be at a daily average temperature of 25 ℃ above.