Cedrela sinensis and cedrela toona grafting propagation method

Abstract

The invention discloses a cedrela sinensis and cedrela toona grafting propagation method, comprising the following steps: (1) field planting and managing of a stock; (2) collecting and processing of a propagation material; (3) grafting; (4) managing after the grafting. Compared with the prior art, the method has the advantages (1) excellent characters of prominent growth and good tree shape of cedrela sinensis and cedrela toona stock plants are kept; (2) massive excellent clone seedlings can be propagated, and the problem of difference in growth of common cedrela sinensis and cedrela toona seedlings and after afforestation is solved; (3) an excellent seed garden can be built by using the produced clone seedlings, massive excellent cedrela sinensis and cedrela toona seeds can be produced, the problem of limited fruit setting quantity of excellent single cedrela sinensis and cedrela toona plants is solved, the quality of the cedrela sinensis and cedrela toona seeds and the seedlings is improved and the growth amount or yield after the afforestation can be improved.

Description

technical field [0001] The invention relates to a grafting propagation method, in particular to a grafting propagation method of Chinese toon and red toon. Background technique [0002] Chinese toon and red toon are both deciduous or semi-deciduous trees of the family Meliaceae. The wood material is good and the color is reddish. It is called "mahogany" in China and is a very good Chinese precious fast-growing timber tree species. The second-level key protected plants have little natural distribution and poor natural regeneration ability. There are many excellent individual trees with good dry shape and rapid growth in the naturally distributed natural forests and artificial forests of Chinese toon, but they are all large trees with a diameter of 30-150 cm. At present, the propagation of Chinese toon and Chinese toon is mainly through Seed propagation cannot preserve the excellent characteristics of excellent trees, and the seeds are very limited; asexual propagation can pr...

AI Technical Summary

Problems solved by technology

The shortcoming of this Chinese toon, red toon sowing seedling technology is:

[0004] 1) Toona sinensis and red toon seedlings belong to sexual reproduction. Due to the differences between the seeds of different excellent trees and the seeds of the same mother tree, the cultivated seedlings cannot fully preserve the excellent characteristics of the mother plant, and there are also differences in growth after afforestation. Certain differences cannot achieve a uniform effect

[0005] 2) The afforestation of Chinese toon and red toon requires a large amount of seedlings of good seeds. At present, domestic Chinese toon and red toon have not yet established a seed garden of good seeds. However, the seeds used in the market for sowing and raising seedlings of Chinese toon and red toon are basically randomly collected seeds, and there is no need for seed collection. The mother tree is selected, the collected seeds are uneven and the quantity is limited, the quality is not guaranteed, and the quality of the cultivated seedlings is not guaranteed

[0006] 3) A small number of excellent trees with outstanding growth and good tree shape in Chinese toon and red toon have a very limited number of seeds, and the number of seedlings cultivated by sowing seedlings is limited, which cannot meet the needs of a large number of seedlings in production.

The shortcoming of this branch, root cutting seedling raising technique is:

[0009] 1) Toona sinensis and red toon trees are tall, and it is very difficult to collect branches. Even if the branches are collected and used directly for cutting seedlings, due to the position effect and age effect, the survival rate of cuttings is extremely low, and the excellent trees cannot be propagated quickly. seedlings

[0010] 2) The root system of Chinese toon and red toon tree is well developed and grows downward. It is difficult to collect the root system of 1-3cm, and it is extremely difficult to germinate if the root system is too thick, and it is impossible to quickly reproduce the seedlings of the excellent tree.