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

Abstract

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.

Description

technical field [0001] The invention belongs to the field of agricultural planting, and in particular relates to a method for improving the survival rate of macadamia nuts for high-inoculation replacement. Background technique [0002] Macadamia is native to Australia. Its fruit is rich in nutrition, crispy and delicious. It sells well in the market and has good economic benefits. It has become one of the emerging fruit trees in the world today. Tropical regions around the world have introduced varieties one after another, and the varieties used in production are all imported from abroad. The ecological environment of the trial planting area is very different from the place of origin, which makes the quality and output of macadamia nuts in my country lower than the place of origin, and the gap is very large. The commodity and market price of macadamia nuts have been reduced, and the income of fruit farmers has been reduced. In order to improve the economic benefits of macada...

AI Technical Summary

Problems solved by technology

Tropical regions around the world have introduced varieties one after another, and the varieties used in production are all imported from abroad. The ecological environment of the trial planting area is very different from the place of origin, which makes the quality and output of macadamia nuts in my country lower than the place of origin, and the gap is very large. Reduced the commodity and market price of macadamia nuts, and reduced the income of fruit farmers

In order to improve the economic benefits of macadamia nut production, for macadamia nut varieties that are not suitable for local ecological conditions, low-quality and low-yield trees, and lack market competitiveness, some fruit farmers directly cut down low-yield trees and replant high-quality varieties. This method is costly and takes a long time to put into production. , Time-consuming and labor-intensive; At present, some fruit growers use sawing off the main side branches for high-level grafting. This method has the problems of long grafting process and low grafting survival rate.

[0003] The invention with application number 201510615744.9 and title "A Method for High Grafting and Replanting of Macadamia Nuts" discloses a method for high grafting and replanting of macadamia nuts. Macadamia tree high-grafting and replanting, this method needs to wait 1-2 months after the stem is cut to germinate before it is ready for grafting, which takes a long time

[0004] The invention with the application number 201810707858.X and the title "A Method for High Grafting and Replacement of Macadamia Nuts" discloses a method for high grafting and replacement of macadamia nuts. It adopts the bare rod grafting method, which is difficult to operate, and the survival rate of grafting is affected by the level of the operator. Large, and the flow of glue and water in the incision cannot flow out, which also seriously affects the survival rate of its grafting

[0005] Therefore, it is necessary to explore a method that is simple to operate, saves time and can overcome the problem of low survival rate of macadamia nut grafting in the prior art due to "flowing glue" and "watering" at the grafting interface.

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