Method for propagating apocarya seedlings

Abstract

The invention discloses a method for propagating apocarya seedlings. The method comprises the steps of selecting an annual apocarya seedling branch, shearing the branch to be the length being 10 cm, and soaking the lower end of the sheared branch into an 800 mg / L NAA solution for 4 h; placing a matrix into a paper bag, inserting a cutting into the matrix, enabling the paper bag obtained by cuttage to tightly abut against a mesh disc with a hole, and placing the paper bag on a seedbed; in the cutting rooting process, keeping the soil humidity to be about 70%, and keeping the temperature of the lower end of the cutting to range from 25 DEG C to 30 DEG C; conducting grafting 40 days after cuttage, adopting the bark peg grafting method, transferring the kraft paper bag, obtained after grafting, with the cutting into a large pot, filling the periphery of the pot with the matrix, pulling out 4 / 5 of the kraft paper bag, observing the grafting survival rate 15 days after grafting, completely removing the paper bag, and then conducting high-density nutrient and water management. According to the method, the apocarya nursery stock can grow more than 80 cm in the current year, and the survival rate is more than 90%.

Description

technical field [0001] The invention belongs to the technical field of fruit tree and tree cultivation, and relates to a method for breeding hickory carya seedlings. Background technique [0002] Thin-shelled hickory, also known as American hickory, is a species of Juglandaceae and Hickory. Native to the United States and Mexico, it is one of the most important oil-bearing dried fruit tree species in the world. Its shell is thin and easy to peel, its kernels are thick and fleshy, and it has a delicious taste and high nutritional value. The trunk is straight, the tree shape is beautiful, the roots are deep and the leaves are luxuriant, and it is an excellent tree species for greening and gardening around. At the same time, the wood is tough and dense, with dark red heartwood, yellow-white sapwood, high elasticity, and is not easy to deform and crack. It is an excellent timber tree species for construction and high-end furniture. Therefore, pecan is an excellent economic tre...

AI Technical Summary

Problems solved by technology

The breeding of fine hickory varieties is mainly through grafting. The rootstocks used for grafting and propagation are mainly self-root stock and seedlings cultivated by sowing hickory seeds. Due to the high price of seeds, the cost of seedlings is too high

There are about 100-160 seeds per kilogram of pecan, with a germination rate of 60%, a seedling rate of 95%, and a seedling rate of 52-91 per kilogram of seeds, so the cost price of each seedling is 1 yuan In addition, there are land costs and labor costs, so the cost of raising hickory seedlings with thin shells is relatively expensive

In addition, although the grafting technology of thin-shell hickory nuts was fully mature in the year of sowing, the seedlings formed by grafting are very weak, known as "rat tails", and they need to grow for another year in the second year before they can emerge from the nursery

Therefore, using seedling grafting to raise seedlings is not only costly but also time-consuming.

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