A kind of bud grafting method of shell pecan

Abstract

The invention provides a dud grafting method for apocarya, and belongs to the technical field of plant vegetative propagation seedling culture. The method includes the following steps of bud grafting period selection, scion collection and storage, grafting, management conducted after grafting, stock pruning and the like, wherein a bud grafting knife limited by the method is adopted for scions. By using the novel bud grafting knife, the bud grafting utilization rate and the work efficiency are greatly increased; meanwhile, by using a browning prevention agent, tissue browning can be effectively relieved, smooth conduction of the bud grafting technology is facilitated, and the grafting survival rate is increased; the bud grafting method has the advantages of being easy to operate, high in efficiency, capable of fully utilizing cutting materials, stable in survival rate, and the like. The bud grafting method is also suitable for forest and fruit trees such as walnut trees, sophora japonica trees, persimmon trees and olive trees.

Description

technical field [0001] The invention belongs to the technical field of plant vegetative propagation and seedling cultivation, and in particular relates to a method for budding of pecans with thin shells. Background technique [0002] Thin shell hickory (Carya illinoinensis Koch) is a plant of the genus Hickory in the family Juglandaceae, and is a world-renowned dried fruit tree species. Grafting propagation is one of the most widely used vegetative propagation techniques in forestry production, especially the application of block bud grafting technology in the grafting of pecans, which enables the large-scale and rapid propagation of fine varieties of pecans to be realized. In the summer budding of thin-shelled pecans, the bud slices are generally cut with a traditional square budding knife, and the bud slices with a width of about 3 cm can have only one full bud body. [0003] However, in practical work, it is often found that: ① the distance between the full buds on the s...

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Problems solved by technology

[0003] However, in practical work, it is often found that: ① the distance between the full buds on the scion varies greatly, and most of the full buds are densely distributed in the middle and upper parts of the scion. Sometimes the collected bud pieces with a length of about 3 cm often contain 5-6 full buds , which seriously wastes the scarce resources of fine seeds; ②After grafting 300-500 plants, the edge of the bud grafting knife will become blunt, which will not only take a lot of effort to get the buds, delay the work efficiency, but also cause the incision to be not smooth enough, thus affecting the root ear cambium ③ During the grafting operation, whether the rootstock or the scion is cut first, after the two materials are cut, when the bud pieces are to be pasted on the rootstock, the first material will always be cut to varying degrees. Browning, browning is often due to the large amount of secondary metabolites (phenolic substances and tannins, etc.) contained in the thin-shell hickory nut tissue. Oxygen in the cell undergoes an oxidation reaction to produce quinones

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