CN111264223A

CN111264223A - Method for improving rooting rate of plants difficult to root

Info

Publication number: CN111264223A
Application number: CN202010175617.2A
Authority: CN
Inventors: 赵宝军; 刘枫; 宫永红
Original assignee: Liaoning Province Economic Forest Research Institute
Current assignee: Liaoning Province Economic Forest Research Institute
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-06-12

Abstract

The invention discloses a method for improving the rooting rate of a plant difficult to root, which comprises the steps of uniformly brushing a prepared mixture containing a rooting promoting substance and a paste on a target branch section difficult to root to be rooted, and then pressing the target branch section by using a hilling matrix to cover or wrap the target branch section. The method has the advantages of avoiding the too fast reduction of the concentration of the rooting promoting substances in the rooting process of the branch sections, ensuring the continuous supplement of the rooting promoting substances in the layering propagation process of the plants difficult to root, effectively accelerating the elongation and the splitting speed of the root system, being beneficial to the formation of root primordia, increasing the rooting rate and the rooting quantity of the layering propagation of the plants difficult to root, improving the layering success rate of tree species, reducing the labor cost and improving the production efficiency.

Description

Method for improving rooting rate of plants difficult to root

Technical Field

The invention belongs to the technical field of agriculture, relates to a plant rooting rate application method, and particularly relates to a method for improving the rooting rate of plants difficult to root.

Background

Layering propagation is a mode of plant asexual propagation, and is a propagation method that branches of trees are pressed into or wrapped in a matrix in a state that the branches are not separated from a parent body, the pressed parts or the wrapped parts are promoted to generate roots, and then the branches are cut off from the parent body to form independent new plants. The plants bred through layering propagation can keep the excellent characteristics and characters of the mother plants, and for fruit tree plants, the bearing age is earlier.

The rooting agent is auxin compound belonging to plant growth regulator promoter, and has the functions of maintaining the apical dominance of plant in plant body, inducing assimilation product to transport to fruit, promoting plant rooting, etc.

The layering propagation method not only can directly utilize the cultivated plants for field planting and orchard establishment or afforestation, but also can ensure that the stocks keep consistency by taking the cultivated plants as the stocks through layering propagation, and then grafting scion varieties on the stocks.

For the purpose of successful layering, it is a common practice to employ a rooting-promoting substance such as hormones at the site to be rooted, which is necessary for woody plants that are difficult to root. The current method of applying hormones in a wide range is to mix the hormone with water or an organic solvent and apply or spray the mixture to the target site. The method has the defects that the concentration of the rooting promoting substances such as hormones and the like at the target part is gradually reduced along with the time, which is particularly obvious under the condition that rainwater exists in the field, so that the effect of the rooting promoting substances such as hormones and the like in layering is reduced, the rooting rate is reduced, and the rooting effect is influenced.

In order to improve the layering rooting rate of plants difficult to root and reduce the reduction of the content of rooting promoting substances such as hormones and the like in a target finger section caused by rain wash, some layering practice activities developed outdoors have to take hormone supplementing measures frequently, which undoubtedly increases the workload and the production cost; in order to avoid the influence of rainwater, layering practices developed in facilities such as greenhouses and greenhouses can not only increase the production cost, but also cannot ensure that the hormone concentration of the target branch section cannot be gradually reduced. And the air layering is adopted on the big tree, so that the hormone content of the target branch section is more difficult to control. Therefore, it is imperative to construct a method for promoting rooting by uniformly mixing the rooting promoting substance with the ointment carrier and then coating the mixture on the branch segment.

Disclosure of Invention

The invention aims to provide a method for improving the rooting rate of plants difficult to root.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention relates to a method for improving the rooting rate of a plant difficult to root, which is characterized in that after paste containing rooting promoting substances are mixed, the paste is uniformly coated on a target branch section difficult to root to be rooted, and then the target branch section is pressed into strips for operation, wherein the target branch section is covered or wrapped by a hilling matrix.

Specifically, the rooting promoting substance is one or a mixture of more than two of indolebutyric acid, naphthylacetic acid or ABT rooting powder.

Specifically, the layering operation comprises a seedling raising method that the stock plant presses or wraps the target branch section in a matrix to promote rooting in various layering modes such as vertical, horizontal and air modes, and the like, and the target branch section and the stock plant are cut off and separated into a new plant from the lower part of the rooting section.

Specifically, the cream carrier material is one or more of vaseline, lard and lanolin.

Specifically, the rooting promoting substance mixing method comprises the steps of uniformly dispersing the rooting promoting substance in the paste carrier substance through water bath heating, and fully stirring and cooling the paste carrier substance for later use when the paste carrier substance is dissolved into paste.

Specifically, the plant difficult to root comprises peach, wintersweet, pine, Chinese flowering apple, cercis chinensis, zelkova, tabasheer, bamboo, dupustula, Chinese chestnut, walnut, oak and persimmon.

Specifically, when the layering operation is performed, the prepared paste containing the rooting promoting substance is dipped by a brush, and is uniformly brushed on the branch segment to be rooted, and then the branch segment to be rooted is covered or wrapped by the matrix according to the normal layering procedure. Other management is performed according to the plant layering operation method.

The invention adopts the technical scheme to obtain the following positive effects:

(1) the invention effectively improves the layering success rate of the plants difficult to root and improves the rooting rate and the number of root systems.

(2) The invention can effectively reduce the layering production and management cost of the plants difficult to root and improve the labor productivity.

Drawings

FIG. 1 shows the daughter plant obtained by layering the seedling of Juglans regia No. 1 walnut obtained by the method of the present invention.

FIG. 2 is a schematic diagram of a sub-plant obtained by layering Liaoning No. 1 walnut seedlings obtained by the method of the present invention.

FIG. 3 is a schematic diagram of the sub-plants obtained by layering the walnut seedlings from Hebei of the invention.

FIG. 4 is a schematic view of layering of Juglans mandshurica seedlings obtained by the method of the present invention.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following embodiments are provided to further illustrate the present invention.

Examples

The stock plant is seedling of Juglans regia No. 1 (J.regia L. 'Liaoning 1 hao') in the plant difficult to root, seedling of Juglans regia No. 1 (J.regia L.), seedling of Juglans regia Hu (J.hopeiensis Hu.), and seedling of Juglans mandshurica (J.mandshurica Max.). Walnut is one of the tree species difficult to root, and is difficult to root by adopting propagation methods such as cuttage, tissue culture and the like.

The layering method adopts a vertical layering method. The rooting promoter is indolebutyric acid (IBA) and ointment, and the ointment mixture containing IBA is prepared.

(1) The seedling planting time is 3 late ten days. Before planting, the main root of the mother plant is reserved for about 18cm, and the lateral root is reserved for about 12cm and trimmed. The planting depth is that the root neck is equal to the ground, the seedling stem of the mother seedling is fixed by a hook and kept equal to the ground, and the seedling stem is buried with fine river sand with the thickness of 3-4 cm. At the beginning of 6 months, namely when the young plants on the trunk of the mother plant have the germination length of about 20cm, the base parts of the young plants are cultivated with 10-15cm of fine river sand.

(2) And (4) taking off river sand at the base of the daughter plant for 22 days at 6 months, performing ring-opening on the base of the daughter plant by using a binding thread, dipping ointment containing IBA into the ointment by using a brush which is 10cm (rooting zone) above the base of the daughter plant, and uniformly brushing the ointment on a branch section to be rooted. Finally, carrying out sand culture by using river until the depth is 10-20 cm.

Comparative example

The test material and the layering method are the same as the examples, and the IBA treatment method is a conventional method, namely IBA is mixed with aqueous solution and then coated on the branch segment to be rooted. The other procedures were the same as in example 1.

The example is compared with the comparative example in terms of rooting effect. As shown in Table 1, the seedling plants of Liaoning No. 1 variety (as shown in FIG. 1), the seedling plants of Liaoning No. 1 variety (as shown in FIG. 2), the seedling plants of Hebei Juglans regia (as shown in FIG. 3) and the seedling plants of Juglans mandshurica (as shown in FIG. 4) had rooting rates of 30.0%, 72.7%, 84.6% and 76.5%, respectively, by the treatment method of example 1 and 0.00%, 31.6%, 0.00% and 6.30%, respectively, by the treatment method of comparative example 1. No. 1 Liaoning variety seedling and Hebei walnut seedling (shown in figure 3) have no root system. Meanwhile, the number of roots was also significantly greater with the hormone treatment method of example 1 than with the conventional hormone treatment method of comparative example 1.

TABLE 1 comparison of rooting effect between example 1 and comparative example 1

The method of the invention promotes the layering rooting of the plant difficult to root and improves the layering success rate. In order to make the rooting promoting substances such as hormones and the like more effectively play a role in a target branch section, promote rooting and achieve the purposes of successfully layering and improving rooting rate, the invention provides a method which utilizes the uniform mixing of the rooting promoting substances and a paste substance, applies the prepared mixture to the target rooting branch section, uses the paste substance as a hormone dispersant, utilizes the viscosity of the paste substance, enables the rooting promoting substances such as hormones and the like to be attached to the surface of the target branch section, prevents the concentration of the rooting promoting substances such as hormones and the like from being reduced too fast in the target branch section, thereby better promoting layering rooting, improving the rooting rate and the rooting quantity and achieving the expected layering effect. The method changes the traditional method of mixing the rooting promoting substance and the liquid, and more effectively plays the role of the rooting promoting substance. The method can increase the layering rooting rate of the plants difficult to root, improve the number of roots, improve the layering success rate of the plants difficult to root, improve the production efficiency and reduce the labor cost.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method for improving the rooting rate of a plant difficult to root is characterized in that paste containing rooting promoting substances is mixed and then is evenly coated on a target branch section difficult to root to be rooted, and then the target branch section is pressed into strips, wherein the target branch section is covered or wrapped by a hilling matrix.

2. The rooting-promoting substance according to claim 1, wherein the rooting-promoting substance is one or a mixture of two or more of indolebutyric acid, naphthylacetic acid and ABT rooting powder.

3. The method for improving the rooting rate of the plants difficult to root according to claim 1, wherein the layering operation comprises a seedling raising method that the stock plant presses or wraps the target branch section in a matrix to promote rooting in various layering modes such as vertical, horizontal and air, and the seedling raising method is used for cutting off the root section and the stock plant to separate a new plant.

4. The method for improving the rooting rate of plants difficult to root according to claim 1, wherein the paste carrier material is a mixture of one or more of vaseline, lard and lanolin.

5. The method of claim 1, wherein the rooting-promoting substance is mixed by uniformly dispersing the rooting-promoting substance in the paste carrier material by heating in water bath, and stirring and cooling the paste carrier material when the paste carrier material is dissolved into paste.

6. The method of claim 1, wherein the plant difficult to root comprises peach, prune, pine, crabapple, cercis, zelkova, tabasheer, bamboo, dupustule, chestnut, walnut, oak and persimmon.