ABT生根粉对金叶榆嫁接成活率的影响  

Effect of ABT Rooting Powder on the Survival Rate of Ulmus pumila

作　　者：黄秋凤 Huang Qiufeng(Forestry Technology Workstation of Shandan County,Shandan Gansu 734100)

机构地区：[1]山丹县林业技术工作站,甘肃山丹734100

出　　处：《中国林副特产》2024年第2期19-20,24,共3页Forest By-product and Speciality in China

摘　　要：白榆因根系发达,生长快,耐干旱、耐盐碱、耐贫瘠土壤,是西北内陆河流域干旱半干旱地区防风固沙造林和城市园林景观绿化的主要树种。以白榆为砧木,通过使用ABT2号生根粉,对金叶榆接穗采取不同浓度、不同浸泡时间,对金叶榆硬枝嫁接进行了对比试验,结果表明:在溶液浓度为1000~1500 mg/kg,处理时间为10~15 min时效果最好,在接穗新梢生长至6~9片时摘心,不但提高金叶榆嫁接成活率,降低新梢分杈枝率,而且可形成较大树冠,提高苗木商品率。Ulmus pumila is the main tree species for wind-break and sand-fixing afforestation and urban landscape greening in arid and semi-arid area of northwest inland river basin.In this experiment,Ulmus pumila was used as rootstock,ABT2 rooting powder was used to study the grafting of hard branch of Ulmus pumila with different concentration and soaking time,the results showed that the best effect was obtained when the concentration of solution was 1000~1500 mg/kg and the treatment time was 10~15 min.When the scion shoots grew to 6~9 pieces,the survival rate of Ulmus pumila was increased,it can reduce the branching rate of new shoots,form a bigger crown and increase the commercial rate of seedlings.

关 键 词：生根粉 硬枝嫁接 成活率 生长量 

分 类 号：S687[农业科学—观赏园艺]