【摘要】 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。更多还原

【Abstract】 After orthogonal test analysis of three factors, three levels and 27 kinds of compositions,the causes of the putridity of the Rugosa rose fresh cuttings were investigated. The results showed that the putridity of the cuttings was caused by the weak resistance of the cuttings, higher temperature and humility in the air and soil. Order for effects of these factors on the putridity of cuttings was given. Four composite patterns of lower infective disease rate were obtained.更多还原