CN115413492A

CN115413492A - Chinese rose branch bark-cutting grafting method

Info

Publication number: CN115413492A
Application number: CN202211218740.3A
Authority: CN
Inventors: 宣云; 唐菲; 任杰
Original assignee: Agricultural Engineering Institute of Anhui Academy of Agricultural Sciences
Current assignee: Agricultural Engineering Institute of Anhui Academy of Agricultural Sciences
Priority date: 2022-10-07
Filing date: 2022-10-07
Publication date: 2022-12-02
Anticipated expiration: 2042-10-07
Also published as: CN115413492B

Abstract

The invention discloses a Chinese rose branch bark-cutting grafting method, which comprises the following operation steps: selecting a rootstock and a scion; cutting four cuts into the cortex of the stock, and separating the bark in sections; the lower end of the Chinese rose scion is obliquely cut downwards into a tongue-shaped long inclined plane, the cortex is cut off from the two sides of the long inclined plane, and the cortex is cut off from the opposite lower end; the scion is inserted between the cortex and the xylem of the stock, the lower end of the scion is inserted into the lower end notch of the stock, and the stock and the grafting part of the scion are wrapped and fixed by a grafting film. The method is simple and easy to operate, reduces the breakage of the stock cortex when the stock cortex is separated from the cortex, increases the healing area of the stock and the scion, and improves the grafting survival rate.

Description

Chinese rose branch bark-cutting grafting method

The technical field is as follows:

the invention relates to the technical field of plant grafting propagation, in particular to a Chinese rose branch bark-cutting grafting method.

Background art:

the Chinese rose is an ornamental plant of Rosa of Rosaceae, has medicinal value, and can be widely cultivated in garden. Grafting propagation is a common asexual propagation mode of Chinese roses. Roses have the characteristics of strong vitality and developed root systems, are often used as stocks for grafting roses, and are mostly used as the stocks in the market at present. Most of Chinese roses (especially miniature Chinese roses) have underdeveloped root systems, are grafted on wild roses and are beneficial to propagation and rapid growth of the Chinese roses. The grafting of the Chinese rose can be divided into bud grafting and branch grafting, bark grafting is a very effective Chinese rose branch grafting method, but for the current or annual rose-stem rootstock, when the cortex at the longitudinal cut edge of the rose stem is picked up by using the traditional bark grafting method, the cortex sometimes breaks, the scion cannot be well inserted into the cortex of the rootstock, and the grafting survival rate is reduced, so that a new bark grafting method is necessary to be invented.

The invention content is as follows:

the invention mainly solves the technical problem that when a longitudinal incision boundary cortex layer of a rose stem is lifted in the bark grafting process of an annual or annual rose stem stock, the cortex layer is broken sometimes, and a scion cannot be well inserted between the xylem and the cortex layer of the stock.

The purpose of the invention is realized by the following technical scheme:

a Chinese rose branch bark-cutting grafting method comprises the following steps:

step one, selecting annual or annual rose stems as rootstocks, and selecting rose branches as scions.

Step two, the upper end of the stock is cut flat by a cutter, the cortex is vertically and downwards longitudinally cut at the incision by the cutter, the length is 1.0-1.5 cm, the cortex is transversely cut by taking the lower end of the longitudinal incision as a midpoint, and the length is 0.6-1.0 cm; and vertically cutting 0.8-1.0 cm downwards at two ends of the transverse cutter opening, wherein the cortex of the stock is cut off by each cutting and the xylem is reached.

And step three, obliquely downwards cutting the lower end of the Chinese rose scion into a tongue-shaped long inclined surface with the length of 1.8-2.5 cm, cutting off cortex on two sides of the long inclined surface, and cutting off cortex with the length of 0.6-1.0 cm at the opposite lower end of the long inclined surface.

And step four, picking up cortex layers on two sides of the upper longitudinal cut of the stock by a knife, picking up the cortex layer in the lower longitudinal cut downwards, enabling the ligulate inclined plane of the scion to be tightly attached to the stock and inserted between the cortex layer and the xylem of the stock from top to bottom, inserting the lower end of the scion into the lower cut of the stock, and wrapping and fixing the stock and the grafting part of the scion by a grafting film.

The invention has the following beneficial effects:

the invention provides a Chinese rose branch bark grafting method, which comprises the steps of cutting four cutters on a stock cortex, and separating the bark in a segmenting mode, so that the stock cortex is reduced from being broken when the bark is separated; the method comprises the following steps of cutting Chinese rose scions into long tongue-shaped inclined planes, cutting off cortex on two sides of each long inclined plane, cutting off cortex at the lower end of each scion, inserting the scions between the cortex and the xylem of the stock, and inserting the lower ends of the scions into notches at the lower ends of the stocks, so that the healing area is increased, and the grafting survival rate is improved.

Description of the drawings:

FIG. 1 is a schematic diagram of a grafting step of Chinese rose branches by bark grafting.

The specific implementation mode is as follows:

an embodiment of the invention is further described below with reference to the drawings:

1. in autumn, annual spinless rose stems are selected as rootstocks, new semi-lignified Chinese rose branches with 1-2 full buds are used as scions, and the epidermis at the corresponding grafting part is wiped with 70% ethanol for disinfection.

2. As shown in fig. 1-a, the upper end of the stock is cut flat by a knife, the cortex is vertically cut downwards at the incision by the knife, the length is 1.0-1.5 cm, the cortex is transversely cut by taking the lower end of the longitudinal incision as a midpoint, and the length is 0.6-1.0 cm; and vertically cutting 0.8-1.0 cm downwards at two ends of the transverse cutter opening, wherein the cortex of the stock is cut off by each cutting and the xylem is reached.

3. As shown in FIG. 1-B, the lower end of the Chinese rose scion is obliquely cut downwards into a tongue-shaped long inclined plane with the length of 1.8-2.5 cm, the cortex layer is cut off at the two sides of the long inclined plane, and the cortex layer with the length of 0.6-1.0 cm is cut off at the opposite lower end of the long inclined plane.

4. As shown in fig. 1-C, the two lateral cortex of the upper longitudinal cut of the stock are picked up by a knife, the cortex in the lower longitudinal cut is picked up downwards, the tongue-shaped inclined plane of the scion is tightly attached to the stock and is inserted between the cortex and the xylem of the stock from top to bottom, and the lower end of the scion is inserted into the lower cut of the stock.

5. As shown in figure 1-D, the stock and the graft position of the scion are wrapped and fixed by a grafting film and then sleeved with a plastic bag.

Claims

1. The Chinese rose branch bark-cutting grafting method is characterized by comprising the following steps:

step one, selecting a stock and a scion;

step two, the upper end of the stock is cut flat by a cutter, the cortex is vertically and longitudinally cut downwards at the cut by the cutter, the length is 1.0-1.5 cm, the cortex is transversely cut by taking the lower end of the longitudinal cut as a midpoint, and the length is 0.6-1.0 cm; vertically and downwards cutting 0.8-1.0 cm at two ends of a transverse cutter opening, and cutting off the rootstock cortex to reach the xylem deeply each time;

step three, cutting the lower end of the Chinese rose scion obliquely downwards into a tongue-shaped long inclined plane with the length of 1.8-2.5 cm, cutting off the cortex on two sides of the long inclined plane, and cutting off the cortex with the length of 0.6-1.0 cm at the opposite lower end of the long inclined plane;

2. The method for grafting Chinese rose branches and bark according to claim 1, wherein the rootstock in the first step is a rose stem grown in the current year or in an annual year.