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为提高冬青扦插成活率,以奈瑞(Ilex×Ilex sp.’Nellie R.stevens’)、矮生全缘构骨(Ilex×altaclereniss’Argentea-marginata’)和中国少女(Ilex sp.’China Girl’)3个冬青品种的当年生枝条作为插穗,采用不同预处理(清水处理3 h、冷藏(2℃)3h、1.5%的盐酸处理3 h、2%的PEG 6000处理3 h)结合0.1%的ABT速蘸10 s,以仅清水处理3 h为对照进行扦插试验。结果表明:0.1%的ABT速蘸10 s可有效提高奈瑞、矮生全缘构骨、中国少女的扦插成活率,与对照相比,分别提高43.0%、9.0%、20.75%。不同预处理对冬青品种扦插成活率的影响不同,奈瑞以2%的PEG 6000处理3 h效果最高,而矮生全缘构骨、中国少女,则均以pH 6.5的弱酸处理3 h最佳。
In order to improve the survival rate of cuttings of Hollyhock, Ilex × Ilex sp. ’Nellie R.stevens’, Ilex × altaclereniss ’Argentea-marginata’ and Ilex sp.’China Girl ’) Were used as the cuttings for 3 holly cultivars with different pretreatment (3 h of fresh water treatment, 3 h of cold storage (2 ℃), 3 h of 1.5% hydrochloric acid treatment and 2% of PEG 6000 treatment for 3 h) with 0.1% ABT speed dip 10 s, only 3 h water treatment for the control cutting test. The results showed that 0.1% ABT dipped for 10 seconds could effectively increase the survival rate of Chinese adolescent girls with Nai Rui, dwarf alloptic bones, and increase the cuttings survival rate by 43.0%, 9.0% and 20.75% respectively compared with the control. The effect of different pretreatment on the survival rate of hollyhock cuttings was different. Nairui had the highest effect on 3 h when treated with 2% PEG 6000, while the dwarf allogenic bones and Chinese adolescent girls were best treated with weak acid at pH 6.5 for 3 h .