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Grafting method of ornamental elm

A technique for ornamental elm and scion, which is applied in the field of ornamental elm grafting to achieve the effects of improving the fresh-keeping effect, speeding up the connection speed and improving the efficiency.

Inactive Publication Date: 2012-04-25
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After grafting, the healing speed and combination of the two are not good enough
In addition, the vigor of the scion during grafting is one of the key factors determining the survival rate of grafting. Because the annual twigs and bud eyes of the above-mentioned kinds of ornamental elms are small, it is not easy to store. Deterioration, viability cannot be guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for grafting ornamental elm, which is used for the grafting process of ornamental elm weeping elm, the specific steps are:

[0047] Step 1. Select rootstock and cuttings

[0048] 1) Selection of rootstocks: Select the solid white elm with strong growth, good dry shape, and no pests and diseases as the rootstock, and the seedling age is 3 years;

[0049] 2) Selection of spikes In the middle and young weeping elm trees located on the southern canopy, select 1-year-old branches with full buds, no pests and diseases, fully lignified, and robust, as branches for scion, that is, spikes;

[0050] Step 2. Cutting and storage of weeping elm spikes

[0051] In the middle and late January, according to the selection requirements in step 1, cut the scion from the weeping elm tree with branch scissors. The cut spikes were soaked in 2% cross-linked chitosan solution for 1 min, taken out and dried indoors for 1 day. The preparation method of 2% chitosan solution is to ...

Embodiment 2

[0064] A method for grafting ornamental elm, which is used for the grafting process of ornamental elm elm elm, the specific steps are:

[0065] Step 1. Select rootstock and cuttings

[0066] 1) Selection of rootstocks Choose Ulmus elm with strong growth, good dry shape, and no pests and diseases as the rootstock, and the seedling age is 2 years;

[0067] 2) The choice of spikes is on the southern canopy of the middle and young round crown elm, weeping elm, golden leaf elm or long clawed elm, and choose the one-year-old branches with full buds, no pests and diseases, fully lignified, and strong. As a branch for scion, it is a scion;

[0068] Step 2. Cutting and storage of golden leaf elm spikes

[0069] In the middle and late January, according to the selection requirements in step 1, cut the scion from the golden leaf elm tree with branch scissors. Cut the long 5cm from the middle and upper part of the ear bar again, and there are 2 full bud branches to make the scion. ...

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PUM

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Abstract

The invention provides a grafting method of an ornamental elm. Scion used in the operation process is treated by 2% cross-linked chitosan solution before storage, so that the fresh-keeping effect of the scion is improved and the stored scion has higher activity; when a rootstock is cut, the section of the rootstock is formed a 15-degree angle with limb, so that the separation of cortex and xylem is more favorable, and the grating efficiency is increased; when the scion is cut, two faces are long cutting faces, so that the contact area between the rootstock and a scion forming layer is increased, and the combination of the rootstock and the scion is more firm; moreover, since the grating method provided by the invention is fast in speed and high in efficiency, the water loss of the rootstock and the scion is less, and the oxidation and browning degree of the incision is low, so the survival rate of the graft can be greatly improved, and the survival rate of the graft is above 95%. The grating method of the ornamental elm provided by the invention is simple and easy to carry out; the ornamental elm grafted by the method can grow fast and shape rapidly, the crown size in the current year can reach above 1.2 m; the ornamental elm can be transplanted in the same year for grafting, thus, the grafting method is a garden and horticultural technique with stronger practicability.

Description

technical field [0001] The invention relates to a method for grafting trees in gardening and horticulture, in particular to a method for grafting ornamental elms. Background technique [0002] At present, the commonly used grafting methods for ornamental elms (mainly including round crown elm, weeping elm, dragon claw elm and golden leaf elm) are: split grafting, cutting grafting and subcutaneous grafting in branch grafting and 'T' shape in bud grafting Budding and scutellum budding method. All there are some problems in these methods, directly affect grafting survival rate and grafting efficiency and crown growth amount after grafting. Among them, splitting and cutting, because the phloem of elm is easy to peel off from the xylem in the growing season, and the scion is small in size, so when the scion is inserted into the incision of the rootstock, the cortex on the scion is easy to peel off or twist, thereby affecting Its cambium causes damage, and it also makes it di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/06
Inventor 刘龙昌李卫清臧德奎朱文琰周洲吴正景
Owner HENAN UNIV OF SCI & TECH
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