为提高凤梨释迦嫁接成活率,以普通番荔枝为砧木,设置砧木粗度0.5~1.0、1.0~1.5、1.5~2.0、2.0~3.0 cm 4个处理,并分别采用不同嫁接口膜封处理,即常规封口法为对照,破膜导流法、嫁接部位切口法和涂抹剂涂抹法等不同嫁接口封口法,比较不同处理的嫁接成活率.结果表明,砧木粗度0.5~3.0 cm时,枝接破膜导流处理的嫁接苗均表现为无明显伤流积液,且嫁接成活率均在90%以上;砧木粗度2.0~3.0 cm时,嫁接成活率最高,可达到95%.砧木粗度2.0~3.0 cm条件下,仍以破膜导流法处理的嫁接成活率最高,超过90%.说明破膜导流法能显著提高凤梨释迦嫁接成活率,可在生产上推广应用.
Research on the technique of branch grafting with wound fluid releasing by breaking membrane to improve the graft survival rate of Annona squamosa L.plants
In order to improve the graft survival rate of Annona squamosa L.plants,with sugar apple as root-stock,four treatments of different rootstock diameters of 0.5-1.0 cm,1.0-1.5 cm,1.5-2.0 cm,2.0-3.0 cm,were set up in combining with different techniques of membrane sealings,respectively,including con-ventional membrane sealing,breaking membrane for wound fluid releasing,grafting site incision and liniments application,to compare the graft survival rate of different treatments.The results showed that the grafted seedlings with wound fluid releasing by breaking membrane did not show obvious accumulation of wound fluid,with the graft survival rate above 90%when the diameter of rootstock was 0.5-3.0 cm.When the diameter of rootstock was 2.0-3.0 cm,the graft survival rate was the highest,reaching 95%.The graft technique of wound fluid releasing by breaking membrane could significantly increase the graft survival rate of A.squamosa L.plants,and could be expanded in production.
Annona squamosa L.sugar applerootstockgraftingbreaking membrane for wound fluid releasing