【摘要】 分别采用体积分数为0%、1%、2%、3%、4%、5%的乙醇作为康乃馨(品种"马斯特")鲜切花的瓶插液,通过测定瓶插时间、鲜质量增加率、花径大小等指标筛选最佳体积分数,同时测定切花SOD、POD和CAT活性,丙二醛含量,呼吸速率,ACC合成酶和ACC氧化酶活性,ACC含量及乙烯释放量。结果表明,体积分数为3%的乙醇保鲜效果最佳,能增进切花吸水,增大花径,降低呼吸速率,延长瓶插时间85.9%;能明显增大SOD活性,降低丙二醛含量;POD、CAT活性小于对照;能有效阻止乙烯的合成,降低ACC合成酶的活性和ACC的含量,但是对ACC氧化酶的活性影响不显著。更多还原

【Abstract】 0%,1%,2%,3%,4%,and 5% ethanol were applied in vase solution and the fresh preservation of them on cut carnation flowers(cultivar Master)was tested.By analysis of vase life,flower weight,and flower-diameter,the best ethanol concentration was determined.On the basis,SOD,POD,CAT,MDA,respiration rate,ACC synthase,ACC oxidase,ACC content,and ethylene release of cut flower were measured respectively.Experimental results showed that 3% ethanol could effectively extend the vase life by 85.9%,increase cut-flower fresh weight and diameter,and lower respiratory rate,could obviously increase SOD activity and lower MDA content,but POD and CAT activity were lower than CK,and could reduce ACC synthase activity and ACC content,but the activity of ACC oxidase was not significantly changed.更多还原