Method for improving top-grafting variety-change survival rate of macadamia ternifolia

The invention discloses a method for improving the top-grafting variety-change survival rate of macadamia ternifolia. The method comprises scion selection, rootstock preparation, grafting, and management after grafting. In the method, measures such as performing oblique cutting and trunk cutting on a rootstock to make a rootstock incision incline properly, cutting oblique saw mouths on the base ofthe rootstock, and fixing a small branch at a joint of the rootstock and scion are used to block "upward transport of water" and "glue flowing" of the joint of the rootstock and scion, a healing agent is sprayed at the grafting joint to avoid a wound rot, healing of the wound is accelerated, the normal growth of the wound is promoted, and thereby the grafting survival rate is improved. The grafting survival rate of the method is as high as 98% or more, and the grafting operation is simple and time-saving. 本发明公开一种提高澳洲坚果高接换种成活率的方法，包括接穗的选取、砧木的准备、嫁接以及嫁接后的管理，本发明通过将砧木斜切截杆使砧木切口适当倾斜、在砧木基部划斜锯口以及在砧穗结合口固定小树枝等措施阻挡砧穗结合口"上水"和"流胶"；