四子马蓝扦插繁殖技术及生根影响因素研究

Study on Cutting Propagation Techniques and Rooting Influencing Factors of Strobilanthes tetraspermus

摘要: 四子马蓝广泛分布于我国西南、华南及华东地区，是重要的爵床科药用植物。本研究设计三因素三水平正交试验设计，进行扦插繁殖试验。研究结果表明，三种因子中生长激素种类对四子马蓝扦插成活影响最大。其中，对扦插成活率作用大小为生长激素种类 > 浓度 > 时间，对生根数作用大小为生长激素种类 > 时间 > 浓度。分析结果可知，有利于提高四子马蓝扦插成活率的最优组合为NAA + 200 mg/L处理3600 s，提高生根数量的最优组合为IBA + 200 mg/L处理3600 s，而综合效果最佳的组合则为IBA + 200 mg/L处理600 s。

Abstract: Strobilanthes tetrasperma is widely distributed in the southwest, south, and east regions of China and is an important medicinal plant in the Acanthaceae family. This study employed a three-factor, three-level orthogonal experiment to conduct a Cutting Propagation test. The research results indicate that among the three factors, the type of growth hormone has the greatest impact on the survival rate of Cutting Propagation of Strobilanthes tetrasperma. Among them, the effect on survival rate of cuttings is in the order of growth hormone type > concentration > soaking time, while the effect on the rooting number is in the order of growth hormone type > soaking time > concentration. The analysis results indicate that the optimal combination for improving the survival rate of Cutting Propagation is NAA + 200 mg/L treatment for 3600 s, while the most effective combination for increasing the number of roots is IBA + 200 mg/L treatment for 3600 s. The combination with the best comprehensive effect is IBA + 200 mg/L treatment for 600 s.