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Method for grafting Chinese fir in autumn

A technology of fir and grafting joints, which is applied in the agricultural field, can solve the problems of no research reports on grafting technology, and achieve the effects of shortening construction time, improving survival rate, and increasing construction speed

Inactive Publication Date: 2016-12-07
GUANGDONG ACAD OF FORESTRY
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AI Technical Summary

Problems solved by technology

How to solve the problem of improving the survival rate of grafting when the planting site is affected by the bad weather in autumn and winter, there is no research report on the grafting technology in this aspect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the autumn of 2011 (late November), in the construction of Lechang oil fir (that is, Chinese fir) fine material collection nursery in the state-owned Chinese fir breeding base of the national Chinese fir breeding base in the north of Guangdong, Guangdong, the following methods were used for Chinese fir grafting:

[0025] (1) Treatment of rootstocks: select fir plants with a ground diameter of 4-6 cm as rootstocks, leave a round of side branches as vegetative branches, cut off the main trunk at a distance of 50 ± 5 cm from the ground, and select smoother bark at the section. On one side, cut vertically along the junction of phloem and xylem to 4-5 cm from the section to form a rootstock incision;

[0026] (2) The treatment of scion: select the robust annual first-level lateral branch on the upper part of the canopy of Chinese fir tree as the scion, keep the length of the scion at 5-6cm, and cut a length of 3.5-4.5cm from the top bud of the scion to the base of the scio...

Embodiment 2

[0035] In the autumn of 2013 (the first ten days of November), in the construction of the Lechang Chinese fir seed garden in the state-owned Xiaokeng forest farm of the national Chinese fir breeding base in the northern Guangdong Chinese fir cultivation area, the method of embodiment 1 was used to carry out Chinese fir grafting.

[0036] In April 2014, statistics were made on the survival of the grafted plants. See Table 2 for the survival of the grafted plants. A total of 669 plants were grafted, and 607 plants survived, with a survival rate of 90.73%.

[0037] Table 2 Grafting statistics of Lechang Chinese fir (Chinese fir) seed orchard in Xiaokeng Forest Farm

[0038] area code

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Abstract

The invention relates to a method for grafting Chinese fir in autumn. The method includes the steps of treatment of a stock, treatment of a scion, grafting, heat and moisture preservation measures and management after grafting. By means of the method, the survival rate of grafting Chinese fir in autumn is greatly increased, and the grafting survival rate is increased to about 90% currently from less than 30% originally; meanwhile, the time period for Chinese fir grafting in a year can be prolonged, the large-scale Chinese fir grafting process is accelerated, the building speed of a Chinese fir gene collecting garden and a seed garden is effectively increased, and the building time is shortened.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for grafting Chinese fir in autumn. Background technique [0002] Chinese fir is the main native tree species for afforestation in southern my country, and it is also one of the main tree species that provide timber in my country. In order to improve the productivity of Chinese fir plantations, good propagation materials are usually selected to establish seed orchards through grafting to produce improved species for afforestation. [0003] Traditional Chinese fir grafting is carried out in spring (March-April), and the survival rate is relatively high. However, the suitable time for Chinese fir grafting in spring is relatively short, which affects large-scale Chinese fir grafting and delays the construction progress of large-scale seed orchards or ear-picking gardens. [0004] Autumn grafting is widely used in the breeding of fruit tree seedlings, but the autumn ...

Claims

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Application Information

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IPC IPC(8): A01G1/06A01G17/00
CPCA01G2/30A01G17/005
Inventor 王润辉胡德活郑会全韦如萍晏姝
Owner GUANGDONG ACAD OF FORESTRY
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