Propagation method of macadamia integrifolia

Abstract

The invention provides a propagation method of macadamia integrifolia. The propagation method comprises the following steps: (1), culturing rootstock seedlings: using tree planting bags for culturing seedlings, timely weeding, fertilizing, performing deinsectization, disease prevention and strengthening management and protection after the rootstock seedlings are cultured to be 60 cm or above, and selecting rootstock seedlings with the rootstock stem diameter of 0.95-1.35 cm as grafting seedlings; (2), selecting scions: the scions are semi-lignified spring twigs, retaining one intact leaf and shearing to remove the rest of leaves; (3), performing grafting: grafting is performed in late February during the spring, clipping lower half parts of the selected scions in the step 2 to achieve smooth wedge-shaped notches of 2-3 cm in length, longitudinally cutting centers of the notches of the rootstock to obtain grafting openings of 2.5-3 cm in length, inserting the scions with the wedge-shaped notches into the grafting openings for grafting; when the plants grow stably and new roots grow out of the plants, the plants can be transplanted out of a nursery; (4), performing field management: the plants that are transplanted out of the nursery are watered timely , weeds are killed, the fertilizer is applied and pest control is carried out. According to the propagation method of macadamia integrifolia, provided by the invention, rootstock seedlings, scions and the grafting method are optimally selected, so that the grafting survival percentage of macadamia integrifolia can reach 95% or above.

Description

technical field [0001] The invention belongs to the field of fruit tree planting, and in particular relates to a macadamia nut propagation method. Background technique [0002] Macadamia is the first of the four famous dried fruits in the world, and has been the best-selling dried fruit food in the international market for a long time. It is predicted that by 2020, the world's total output of macadamia nut shells will be about 250,000 tons, of which the annual output of Australian macadamia nuts will be about 50,000 tons, the United States will be about 40,000 tons, South Africa will be about 20,000 tons, and my country's output will reach about 20,000 tons. . However, the current demand for macadamia nuts is more than 400,000 tons. This large demand provides a very broad market prospect for the industrialization of macadamia nuts. [0003] Most of the existing macadamia breeding methods are large-scale grafting in summer, autumn, and winter. Usually, after germination and ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low grafting survival rate of existing macadamia nuts, the present invention proposes a macadamia nut propagation method, which makes the grafting survival rate of macadamia nuts as high as 95% or more by optimizing rootstock seedlings, scions and grafting methods