Skin-overlapping grafting method

Abstract

The invention discloses a skin-overlapping grafting method. The method comprises the steps of scion cutting, stock cutting and grafting. The scion cutting comprises the following steps: cutting a bark which reaches the xylem upwards from the bottom of the scion on one side of the tooth back surface of the scion to form a scion overlapping part, and forming a scion embracing part on the scion xylem corresponding to the scion overlapping part; the step of cutting the rootstock comprises cutting a rootstock slope at the top of the rootstock; the grafting comprises the steps that the scion skin lapping part of the scion is lapped on the stock slope of the stock, and the scion skin lapping part of the scion is aligned with the cambium of the stock slope of the stock. Compared with an existing grafting technology, the area of the healing face can be increased, new branches with certain height and crown breadth cannot be broken at the grafting position after being subjected to large wind power, and therefore the grafting survival rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of crop cultivation technology, and in particular to a bark grafting method. Background Art

[0002] Grafting is a common plant propagation technique that involves joining parts of two different plants together to create a new, fully functional plant. The existing technologies mainly include cut grafting (suitable for thicker rootstocks, the rootstock is cut into a V-shaped incision, and then the scion is inserted into the incision), bud grafting (a bud is taken from the donor plant and inserted under the bark of the recipient plant), cleft grafting (the incisions of the donor plant and the recipient plant are embedded in each other to make the two closely combined), abutment grafting (the epidermis of the adjacent parts of the donor plant and the recipient plant is cut open to make the two directly contact and heal, and then the root system or stem of one of the plants is cut off), root grafting (the root of the donor plant is directly connected to the root of the recipient plant to make them heal and grow), bevel grafting (the ends of the donor plant and the recipient plant are cut into bevels, and a tongue-shaped incision is cut on each bevel to make the two fit together), clamp grafting (usually used for thinner branches, a part of the side branches of the rootstock is cut off, and then the scion is cut obliquely and inserted into the incision of the rootstock), branch grafting (the branch of the donor plant is inserted into the incision of the recipient plant to make them heal and grow together).

[0003] The key to successful grafting is that the cambium of the scion and the stock is closely combined, so that the vascular tissues of the two plants can be combined into a whole, ensuring the transportation of water and nutrients, so that the plant survives and performs normal physiological functions. In existing grafting methods, such as cut grafting and bud grafting, about one year after grafting, the scion has survived and grown up, with a certain height and crown width; although the scion and the stock have been connected as one, the scion is on one side of the stock, and the cross-sectional area at the interface is actually small, and the scion and the stock are connected by the bark at this time (the wood does not grow together); after the scion forms a certain height and crown width, in windy weather, the scion is affected by the wind and is prone to breakage at the interface (because the interface at this time is only connected by bark, but the cross-sectional area at the interface is small), resulting in a reduced grafting survival rate.

[0004] Therefore, there is an urgent need to study a grafting method that can improve the grafting survival rate, promote rapid healing of the interface, and make the connection at the interface more stable. Summary of the invention

[0005] To this end, the present invention provides a skin grafting method to solve the above-mentioned technical problems.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A bark grafting method, comprising cutting the scion, cutting the rootstock and grafting;

[0008] The scion cutting comprises: on the toothed back side of the scion, a strip of bark deep into the wood from the bottom of the scion upwards is cut to form a scion bark portion, and the wood of the scion corresponding to the scion bark portion forms a scion grafting portion;

[0009] The cutting of the rootstock comprises: cutting a bevel of the rootstock at the top of the rootstock;

[0010] The grafting comprises: placing the scion-bark portion of the scion on the stock inclined surface of the rootstock, and aligning the scion-bark portion of the scion with the cambium of the stock inclined surface of the rootstock.

[0011] Furthermore, the scion trimming also includes: trimming the scion slope downward from the back of the scion embracing portion, wherein the lower end of the scion slope reaches the bottom of the embracing portion;

[0012] The stock cutting method further comprises: at a higher end of the stock inclined surface, cutting a bark strip down to the wood part to form a stock bark-covering part, and the wood part of the stock corresponding to the bark-covering part forms a stock embracing part;

[0013] The grafting comprises: fitting the scion grafting part of the scion with the stock grafting part of the rootstock, aligning the cambium of the scion grafting part with the cambium of the stock grafting part; lapping the stock lapped part of the rootstock on the scion inclined surface of the scion, and aligning the cambium of the stock lapped part of the rootstock with the scion inclined surface of the scion.

[0014] Furthermore, the bark-grafting method also includes selecting scions; the selecting scions includes: selecting healthy scions that are semi-lignified and have full scion buds grown in the current year, and cutting a section with 2-3 scion buds as the scion.

[0015] Furthermore, the scion trimming also includes: flattening both ends of the scion and leaving at least one scion bud in the middle.

[0016] Furthermore, the skin grafting method also includes bundling; the bundling includes: wrapping the grafting point of the rootstock and the scion from top to bottom or from bottom to top with a plastic film.

[0017] Furthermore, the width of the scion covering part and the scion embracing part is 10-20 mm, and the length is 20-50 mm.

[0018] Furthermore, the inclination angle of the rootstock slope is 30-40°.

[0019] Furthermore, the width of the rootstock skinning part and the rootstock embracing part is 10-20mm, and the length is 20-50mm.

[0020] Furthermore, the inclination angle of the scion slope is 30-40°.

[0021] The present invention has the following advantages:

[0022] The phloem-lapping grafting method provided by the present invention adds a scion lapped portion to the lower part of the scion, sets a stock slope on the top of the stock, and uses the scion lapped portion to overlap the stock slope, so that the phloem at the edge of the stock slope and the scion lapped portion can form a healing surface. Compared with traditional grafting methods (such as cut grafting and bud grafting, which only form a healing surface on one side of the stock), a healing surface is added, and the newly added healing surface is larger in area than the healing surface in the prior art; in this way, after one year of grafting, even if the scion has grown into a new branch with a certain height and crown width, it will not break at the grafting site after being subjected to strong wind force (referring to wind that exceeds "wind acting on the cut-grafted or bud-grafted new branch causing the new branch to break at the grafting site" by one or two levels), thereby improving the grafting survival rate.

[0023] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0025] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0026] Figure 1 A schematic structural diagram of a scion of a skin grafting method provided by an embodiment of the present invention;

[0027] Figure 2 A schematic structural diagram of a rootstock for a bark grafting method provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the grafting process of the skin grafting method provided in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the grafting results of the skin grafting method provided in an embodiment of the present invention.

[0030] In the figure: 1. scion; 11. scion lap part; 12. scion grafting part; 13. scion bevel; 2. stock; 21. stock bevel; 22. stock lap part; 23. stock grafting part. DETAILED DESCRIPTION

[0031] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0032] The present invention provides a lapped bark grafting method, the core of which is: a scion lapped bark portion (a section of bark that is pulled apart but not broken) is added on one side of the scion, and a stock inclined plane is added on the top of the stock; during grafting, the scion lapped bark portion is overlapped on the stock inclined plane, and the stock lapped bark portion is overlapped on the scion inclined plane; wherein the lapped bark portion refers to a section of bark that is pulled apart but not broken.

[0033] In combination with the core solution of the present invention, this embodiment illustrates the specific steps of the skin grafting method, which are as follows.

[0034] Step S1, selecting scions. The selecting scions includes: selecting healthy scions grown in the current year that are semi-lignified and have full scion buds, and cutting a section with 2-3 scion buds as the scion.

[0035] Step S2, cutting the scion. Figure 1 The schematic diagram of the scion structure shown in the figure, the scion cutting includes: flattening the two ends of the scion 1, leaving at least one scion bud in the middle; on the side of the back side of the scion 1 with teeth, cutting (peeling) a bark from the bottom of the scion 1 upward to its wood to form a scion bark portion 11, and the scion wood portion corresponding to the scion bark portion 11 forms a scion embracing portion 12; cutting a scion slope 13 from the back side of the scion embracing portion 12 downward, and the lower end of the scion slope 13 extends to the bottom of the scion embracing portion 12. Exemplarily, the inclination angle of the scion slope 13 is 30-40°; the width of the scion embracing portion 12 is 10-20mm, and the length is 20-50mm (that is: the corresponding scion bark portion 11 has a width of 10-20mm and a length of 20-50mm).

[0036] Step S3: cutting the rootstock. Figure 2In the schematic diagram of the stock structure shown in the figure, a stock bevel 21 is cut at the top of the stock 2; at the higher end of the stock bevel 21, a bark is cut (peeled) downward to the wood to form a stock bark portion 22, and the wood of the stock corresponding to the stock bark portion 22 forms a stock embracing portion 23. Exemplarily, the inclination angle of the stock bevel 21 is 30-40°; the width of the stock embracing portion 23 is 10-20mm, and the length is 20-50mm (that is, the width of the stock bark portion 22 is 10-20mm, and the length is 20-50mm).

[0037] Step S4: grafting. Figure 3 Schematic diagram of the grafting process and Figure 4 The schematic diagram of grafting result shown in the figure, the grafting includes: overlapping the scion lapped portion 11 of the scion 1 on the stock bevel 21 of the stock 2, and aligning the cambium of the scion lapped portion 11 of the scion 1 with the stock bevel 21 of the stock 2; fitting the scion grafting portion 12 of the scion 1 with the stock grafting portion 23 of the stock 2, and aligning the cambium of the scion grafting portion 12 with the stock grafting portion 23; overlapping the stock lapped portion 22 of the stock 2 on the scion bevel 13 of the scion 1, and aligning the cambium of the stock lapped portion 22 of the stock 2 with the scion bevel 13 of the scion 1.

[0038] Step S5, bundling. The bundling includes: wrapping the grafting point of the rootstock 2 and the scion 1 from top to bottom or from bottom to top with a plastic film.

[0039] The phloem grafting method provided in the present embodiment, by adding a scion lapped portion 11 to the lower part of the scion 1, setting a stock slope 21 on the top of the stock 2, and utilizing the scion lapped portion 11 to overlap the stock slope 21, so that the phloem at the edge of the stock slope 21 and the scion lapped portion 11 can form a healing surface. Compared with the traditional grafting method (such as cut grafting and bud grafting, which only form a healing surface on one side of the stock), a healing surface is added, and the newly added healing surface is larger in area than the healing surface in the prior art; in this way, after one year of grafting, even if the scion 1 has grown into a new branch with a certain height and crown width, it will not break at the grafting site after being subjected to strong wind force (referring to wind that exceeds "the wind acting on the new branch grafted or bud grafted so that the new branch breaks at the grafting site" by one or two levels), thereby improving the grafting survival rate.

[0040] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numerals and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0045] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A skin grafting method, characterized in that: Including cutting scions, cutting rootstocks and grafting; The scion cutting comprises: on the toothed back side of the scion, a strip of bark deep into the wood from the bottom of the scion upwards is cut to form a scion bark portion, and the wood of the scion corresponding to the scion bark portion forms a scion grafting portion; The cutting of the rootstock comprises: cutting a bevel of the rootstock at the top of the rootstock; The grafting comprises: placing the scion-bark portion of the scion on the stock inclined surface of the rootstock, and aligning the scion-bark portion of the scion with the cambium of the stock inclined surface of the rootstock.

2. The skin grafting method according to claim 1, characterized in that: The scion trimming further comprises: trimming the scion slope downward from the back of the scion embracing portion, wherein the lower end of the scion slope reaches the bottom of the embracing portion; The stock cutting method further comprises: at a higher end of the stock inclined surface, cutting a bark strip down to the wood part to form a stock bark-covering part, and the wood part of the stock corresponding to the bark-covering part forms a stock embracing part; The grafting comprises: fitting the scion grafting part of the scion with the stock grafting part of the rootstock, aligning the cambium of the scion grafting part with the cambium of the stock grafting part; lapping the stock lapped part of the rootstock on the scion inclined surface of the scion, and aligning the cambium of the stock lapped part of the rootstock with the scion inclined surface of the scion.

3. The skin grafting method according to claim 1 or 2, characterized in that: The method also includes selecting scions; the selecting scions includes: selecting healthy scions that are semi-lignified and have full scion buds grown in the current year, and cutting a section with 2-3 scion buds as the scion.

4. The skin grafting method according to claim 3, characterized in that: The scion trimming also includes: flattening two ends of the scion and leaving at least one scion bud in the middle.

5. The skin grafting method according to claim 1 or 2, characterized in that: The method also includes bundling; the bundling includes: wrapping the grafting point of the rootstock and the scion from top to bottom or from bottom to top with a plastic film.

6. The skin grafting method according to claim 1, characterized in that: The width of the scion overlapping part and the scion embracing part is 10-20mm, and the length is 20-50mm.

7. The skin grafting method according to claim 1, characterized in that: The inclination angle of the rootstock bevel is 30-40°.

8. The skin grafting method according to claim 2, characterized in that: The width of the rootstock bark-lapping part and the rootstock embracing part is 10-20mm, and the length is 20-50mm.

9. The skin grafting method according to claim 2, characterized in that: The inclination angle of the scion slope is 30-40°.

Images