Operating method for grafting and breeding seedling nursery through superior castanopsis hystrix

A kind of operation method and nursery technology, which is applied in the field of grafting and breeding nursery operation method of Hongzhui excellent tree, can solve the problems of seedling breeding obstacles, high production cost, shortage, etc., and achieve simple and practical operation, high grafting survival rate, grafting and fastening Effect

Inactive Publication Date: 2018-09-14
中国林业科学研究院热带林业实验中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to technical barriers in the rapid propagation of high-quality fine varieties of red vertebrae, the supply of fine seed clones is limited, and the popularization of red vertebrae clone forests is still immature, and it is only popularized in its main suitable areas. Most of the planting areas still use traditional random seedlings for afforestation. The seedlings collected with sowing have poor quality stability and serious genetic differentiation. The breeding of high-quality and improved seedlings has become the primary problem restricting the expansion of afforestation and popularization of red vertebrae at present.
[0003] In recent years, the technology of clonal breeding by root budding cuttings and high-level grafting of large trees has matured, and the survival rate is as high as 80%. However, there are many obstacles to seedling breeding
Trunking to promote germination will cause great damage to the mother tree, which is not conducive to the sustainable breeding of high-quality seedlings. If a large number of cuttings are obtained, there is currently a lack of corresponding ear picking nurseries, and the high-level grafting technology of large trees is not suitable for seedling nursery operations. Rapid breeding is difficult and the production cost is high

Method used

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  • Operating method for grafting and breeding seedling nursery through superior castanopsis hystrix
  • Operating method for grafting and breeding seedling nursery through superior castanopsis hystrix
  • Operating method for grafting and breeding seedling nursery through superior castanopsis hystrix

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Hongzhui excellent tree grafting breeding nursery operation method, its steps are:

[0030] (1) Excellent tree selection: On October 9, 2014, the comparison method of 5 dominant trees was used to select candidate excellent trees of No. A3018. The ratios of diameter at breast height, tree height and volume exceeding dominant trees were 32.41%, 19.47%, and 102.52%, respectively. The DBH, tree height, volume and the average diameter, tree height, volume of the 5 dominant trees and the ratio of the growth index of the superior tree to that of the dominant tree are shown in Table 1, which met the selection criteria for the excellent tree of Hongzhui, and was selected as the excellent tree of Hongzhui.

[0031] Table 1 Contrast Table of Growth Characters of Hongzhui Excellent Tree and Growth Characters of Dominant Trees (Example 1)

[0032]

[0033] (2) Scion collection and storage: Cut the semi-lignified side branches in the upper part of the excellent tree,...

Embodiment 2

[0041] Embodiment 2: the grafting and breeding nursery operation method of red vertebra excellent tree, its steps are:

[0042] (1) Excellent tree selection: On January 22, 2015, the comparison method of 5 dominant trees was used to select candidate excellent trees of No. A304. The DBH, tree height, volume and the diameter, tree height, average volume of the 5 dominant trees and the ratio of the growth index of the superior tree to the dominant tree are shown in Table 2, which meet the selection criteria for the excellent tree of Hongzhui, and are determined as the excellent tree of Hongzhui.

[0043] Table 2 Contrast Table of Growth Characters of Hongzhui Excellent Trees and Growth Characters of Dominant Trees (Example 2)

[0044]

[0045] (2) Collection and storage of spikes: Cut the middle and upper side branches of excellent trees, and trim them into 10-30cm branches, remove the leaves, keep 5-10 pieces for each branch, wrap them in plastic wrap, put them in an ice box ...

Embodiment 3

[0053] Embodiment 3: Hongzhui excellent tree grafting breeding nursery operation method, its steps are:

[0054] (1) Selection of excellent trees: On April 1, 2015, the comparison method of 5 dominant trees was used to select candidate excellent trees of No. %, diameter at breast height, tree height, volume and the average diameter of diameter, tree height, volume of five dominant trees and the ratio of growth index of excellent trees greater than that of dominant trees are shown in Table 3, which meet the selection criteria for excellent trees of Hongzhui, and are determined to be excellent trees of Hongzhui.

[0055] Table 3 Contrastive Table of Growth Characters of Hongzhui Excellent Trees and Growth Characters of Dominant Trees (Example 3)

[0056]

[0057] (2) Collection and storage of spikes: Cut the middle and upper side branches of excellent trees, and trim them into 10-30cm branches, remove the leaves, keep 5-10 pieces for each branch, wrap them in plastic wrap, pu...

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Abstract

The invention discloses an operation method for grafting and breeding seedling nursery through superior castanopsis hystrix. The method comprises the following steps: selecting superior trees, gathering and storing scions, selecting semi-lignified shoot sections as second-class scions, selecting biennial castanopsis hystrix seedlings as rootstocks, pre-treating the scions, pre-treating the rootstocks, tightly adhering wedge-shaped notches on the front surface of the scions to split notches of the rootstocks, tightly adhering the back surfaces of the scions, to barks and phloem of the rootstocks, wrapping graft positions in a sealed manner through plastic bags, and performing management after grafting. The method has the advantages that the method is simple to use, grafting is tight and stable, the survival rate is high, a supporting production line is easy to assemble, the method is applicable to grafting and fast seedling breeding of the superior castanopsis hystrix, seedlings can effectively keep excellent hereditary features of seed trees, the excellent quality consistency of new plants and the seed trees is guaranteed, and the method is applicable to exsitu-conservation of excellent castanopsis hystrix germplasm resources, construction of a castanopsis hystrix germplasm gene pool, construction of a castanopsis hystrix superior seed garden and asexual rapid propagation of superior seedlings.

Description

technical field [0001] The invention relates to the technical field of asexual propagation of tree species, in particular to a nursery operation method for grafting and breeding red vertebrae excellent trees. Background technique [0002] Red vertebra is a rare and excellent timber tree species of Fagaceae. It has the characteristics of fast growth, high yield, high yield rate, and is extremely suitable for large-scale plantation. and needle-cone mixed forest area reaches 5000hm 2 . Due to technical barriers in the rapid propagation of high-quality fine varieties of red vertebrae, the supply of fine seed clones is limited, and the popularization of red vertebrae clone forests is still immature, and it is only popularized in its main suitable areas. Most of the planting areas still use traditional random seedlings for afforestation. The seedlings collected with sowing have poor quality stability and serious genetic differentiation. The breeding of high-quality and improved ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/35A01G2/38A01G17/00
CPCA01G2/35A01G2/38A01G17/005
Inventor 刘光金贾宏炎谌红辉劳庆祥李洪果张培蒙彩兰
Owner 中国林业科学研究院热带林业实验中心
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