桂东大山楂嫁接育苗技术初探

Preliminary Research on Graft Technology of Eastern Guangxi Crataegus pinnatifida Bge

利用4 a生桂东大果山楂优株穗条,从不同时间、砧木年龄及以不同生长素种类和浓度进行了嫁接试验。结果表明:9～10月份是最适宜的嫁接时期,平均成活率均在88.1%以上,最高可达97.7%;用50 mg/L的2,4-D溶液浸泡穗条4 h,嫁接成活率高达97.7%;2 a生砧木嫁接成活率为92.7%,5 a生砧木成活率为95.3%,但前者高生长大于后者,且出圃时间早,育苗成本低。

Superior plants of eastern guangxi Crataegus pinnatifida bge of four-year old was used as scioa Grafting experiment with different grafting period,stocks tree age and auxin of concentration ration was studied.The results showed that the suitable grafting time was from September to October,the average survival rate of more than 88.1% were up to 97.7%;survival rate of the grafting reached 97.7%when scions were socked 4 h concentration of 100 mg/L 2,4-d;Two-year old stocks of survival rate was 92.7%,five -year old stocks of survival rate was 95.3%,but the former high-growth than the latter,and seedling nursery earlier,cost of seedling cultivation was low.