通过三因素三水平 2 7种组合的正交试验和分析 ,认为插穗腐烂病的发生是由于难生根的离体保加利亚玫瑰嫩枝插穗的抗性弱、空气和土壤的高温高湿条件所造成的 ;分析还表明土壤因素对保加利亚玫瑰嫩枝扦插腐烂病影响最大 ,其次是插穗因素和浸穗试剂 ,并据此提出感病率较低的 4种组合类型。 Through the orthogonal experiment and analysis of 27 combinations of three factors and three levels, it was concluded that cuttings rotted by cuttings were considered to be caused by the weak resistance of young Bulgarian rose twigs, which were hard to root, and the high temperature and humidity conditions of air and soil . The analysis also showed that soil factors had the greatest effect on the shoot rot of Softwood Rose in Bulgaria, followed by the cuttings and flooding agents, and the four combination types with lower susceptibilities were proposed.