外源激素及浸泡时间对皂荚嫁接成活及生长的影响  

Effects of Different Exogenous Hormones Treatment and Soaking Time on the Graft Survival Rate and Growth of Gleditsia Sinensis

作　　者：陈思 Chen Si(Shanxi Academy of Forestry and Grassland Sciences,Taiyuan 030012,China)

机构地区：[1]山西省林业和草原科学研究院,山西太原030012

出　　处：《山西林业科技》2024年第3期30-32,共3页Shanxi Forestry Science and Technology

基　　金：山西省科技成果转化引导专项(202204021301069);中央引导地方科技发展资金项目(YDZJSX20231A068)。

摘　　要：以同一种源的3年生皂荚播种苗为砧木,皂荚优良品种的当年生枝条为接穗,研究了外源激素处理对皂荚嫁接苗成活及生长的影响。结果表明,6-BA浓度为40 mg/L~60 mg/L、KT浓度为40 mg/L~60 mg/L、IBA-K浓度为30 mg/L~120 mg/L时对皂荚嫁接苗成活及生长的促进效果较好,GA3的处理效果较其他3种激素略差。50 mg/L的6-BA、40 mg/L的KT、120 mg/L的IBA-K组合处理的皂荚嫁接成活率最高,为95.56%,对嫁接苗生长的促进作用最明显,平均苗高比对照增加了30.48%,平均基径比对照增加了29.91%。皂荚接穗浸泡时间太短或太长均会影响皂荚嫁接效果,适宜的浸泡时间为5 min~20 min。To study the effects of exogenous hormone treatment on the graft survival rate and growth of Gleditsia sinensis,3-year-old Gleditsia sinensis seedlings with the same origin were used as the stock and the current-growth branches of the excellent variety were used as the scion.The results showed that 6-BA concentration of 40 mg/L~60 mg/L,KT concentration of 40 mg/L~60 mg/L and IBA-K concentration of 30 mg/L~120 mg/L had a better promoting effect on the survival and growth of Gleditsia sinensis grafted seedlings,while the effect of GA3 treatment was slightly worse than the other 3 hormones.The combination treatment of 50 mg/L 6-BA,40 mg/L KT and 120 mg/L IBA-K had the highest grafting survival rate of Gleditsia sinensis which reaching 95.56%.That had the most significant promotion effect on the growth of grafted seedlings,which the average seedling height increased by 30.48%and the average base diameter increased by 29.91%compared to the control.The soaking time of Gleditsia sinensis scions whether too short or too long could affect the grafting effect.The suitable soaking time was 5 min~20 min.

关 键 词：皂荚 外源激素 嫁接 成活率 生长 

分 类 号：S792.99[农业科学—林木遗传育种]