CN112997795A - Method for improving branch drawing rate of ilex verticillata - Google Patents
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
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Abstract
The invention discloses a method for improving the branching rate of ilex verticillata, which is carried out according to the following steps: (1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to a height of 50-75 cm; (2) applying 75-300 times of 15% paclobutrazol wettable powder to 5 th to 15 th hidden buds of the vegetative shoot of the ilex verticillata field seedling from top to bottom 30-40 days before the ilex verticillata field seedling naturally sprouts; (3) applying 10% paclobutrazol wettable powder 300-500 times liquid to the 5 th to 15 th hidden buds of the vegetative shoot of the ilex verticillata field seedling from top to bottom for the second time 10-25 days before the ilex verticillata field seedling naturally sprouts; (4) in the next year, the 5 th hidden bud to the 15 th hidden bud of the vegetative shoot of the ilex verticillata field seedling are smeared by a germination accelerating agent 10-20 days before the ilex verticillata field seedling naturally sprouts. With the method of the present invention, the average number of shoots is significantly greater than that treated in the conventional manner.
Description
Technical Field
The invention relates to the technical field of plant propagation, in particular to a method for improving the branching rate of ilex verticillata.
Background
North America holly is perennial fallen leaf shrub, and dense and bright red fruits are full of branches after fallen leaves in winter, and are very dazzling and happy until spring. The fruit is widely cultivated in countries such as Europe and America as branch cutting fruit observation, landscaping, overnight pot culture and the like, and is highly favored by people in China due to the bright Chinese red color and the lasting fruit observation period. A great amount of ilex verticillata (called as red bean in the market) finished products are imported from the Netherlands and other countries in China to be cut into branches and put into the flower market every year, but the selling price of the ilex verticillata finished products is expensive.
Because the current North America holly planting technology in China is not mature, the number of seedlings for cutting or modeling is far from enough. Meanwhile, domestic pruning still has a very big problem: in the process of cultivating ilex verticillata as a cut branch, when the vegetative branch is found to germinate and result in a lateral branch, only 3-5 lateral branches are usually found, while the exotic branch usually keeps more than 6 lateral branches, and the number of high-quality cut branches even reaches 10-15.
The invention patent of China with publication number CN109699373A, a method for improving the branching rate of ilex verticillata, treats seedlings of ilex verticillata from which new buds are to be extracted through the following technical scheme, and comprises the following specific steps:
step S1: selecting strong ilex verticillata field seedlings from which new buds are to be extracted;
step S2: spraying gibberellin spray on the surface of ilex verticillata branches 15-20 days before new buds of ilex verticillata field seedlings germinate;
step S3: spraying cytokinin mixed with a germination accelerating agent to the surface of ilex verticillata branches 10-15 days before the seedlings planted in ilex verticillata are germinated;
step S4: after cytokinin is mixed with the germination accelerating and branch drawing agent 7-10 days before the new buds of the ilex verticillata field seedlings germinate, the branches are coated spirally, the coating width is 1cm, and the branches are coated on the places with hidden buds on the branches.
After the treatment of the steps, the average number of the branches is obviously more than that of the seedlings planted in the traditional mode, and the average number of the branches is 5.03 branches from the results. Although the average number of branches of the ilex verticillata is obviously more than that of seedlings treated by the traditional mode and can be kept stable to a certain extent, the scheme still has room for further improvement on the increase of the number of branches.
Therefore, a method for improving the branch drawing rate of the ilex verticillata is developed, so that the ilex verticillata has enough branches for cutting, cuttage and pruning, and the economic significance is high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for improving the drawing rate of ilex verticillata, which can meet the requirements of sufficient branches of ilex verticillata for cutting, cuttage and pruning.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to a height of 50-75 cm;
(2) applying 75-300 times of 15% paclobutrazol wettable powder liquid 30-40 days before the natural germination of the ilex verticillata field seedlings to the 5 th hidden bud to 15 hidden buds of the vegetative shoots of the ilex verticillata field seedlings from top to bottom for the first time;
(3) applying 10% paclobutrazol wettable powder 300-500 times liquid to the 5 th hidden bud to the 15 th hidden bud from top to bottom of the vegetative shoot of the ilex verticillata field seedling for the second time 10-25 days before the ilex verticillata field seedling naturally sprouts;
(4) in the next year, applying a germination accelerating agent to 5 th hidden bud to 15 th hidden buds of the vegetative shoot of the ilex verticillata field seedling from top to bottom 10-20 days before the ilex verticillata field seedling naturally sprouts;
in the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
Preferably, after the germination accelerating agent in the step (4) is coated, after the hidden buds on the vegetative shoots sprout and the lateral buds stretch to 4-8cm, the vegetative shoots of the seedlings planted in the North American holly field are sprayed by using a plant growth promoter.
Preferably, after the vegetative shoots of the seedlings planted in the North America holly field are sprayed by adopting the plant growth promoter, the shoot length of the shoot at the germination side is controlled to be 10-20 cm.
Preferably, the ilex verticillata field seedlings in the step (1) are cultivated to the height of 55cm-60 cm.
Preferably, the germination accelerating agent is gibberellin; the plant growth promoter is PBO.
The invention has the beneficial effects that:
according to the technical scheme, in order to improve the branching rate of the ilex verticillata, when the cultivation height of the ilex verticillata field seedlings is relatively low, the middle-upper hidden buds on the vegetative branches of the ilex verticillata field seedlings are creatively coated with paclobutrazol powder liquid for two times, the hidden buds are inhibited from growing, and the hidden buds are promoted to be continuously differentiated; then carrying out hidden germination on the treated nutritive branches of the seedlings planted in the North America holly field, and accelerating germination by utilizing a germination accelerating agent before natural germination in the next year so as to promote germination; according to the method, the sprouting is inhibited firstly, and then the sprouting of the hidden buds is promoted, so that the sprouting rate has unexpected technical effects, the average sprouting number is obviously more than that of the seedlings treated by the traditional method by adopting the method, the number of lateral branches can be stably 10-14, and the sprouting rate can be comparable to that of foreign branches.
Detailed Description
The following examples further illustrate embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to reach the height of 50 cm;
(2) applying 75 times of 15% paclobutrazol wettable powder liquid 30 days before the natural germination of the ilex verticillata field seedlings to the 5 th hidden bud to 15 hidden buds of the vegetative shoots of the ilex verticillata field seedlings from top to bottom for the first time;
(3) coating the 5 th hidden bud to the 15 th hidden bud of the vegetative branch of the ilex verticillata field seedling from top to bottom by using 500 times of 10% paclobutrazol wettable powder solution 15 days before the ilex verticillata field seedling naturally sprouts;
(4) in the next year, the nutrient branches of the ilex verticillata field seedlings from the 5 th hidden bud to the 15 th hidden bud from the top to the bottom are smeared by adopting a gibberellin solution of 50 mg/L10 days before the ilex verticillata field seedlings naturally sprout;
in the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
(5) After the germination accelerating agent is coated, after the hidden buds on the vegetative shoots sprout and the lateral shoots of the sprouts stretch to 5cm, the vegetative shoots of the ilex verticillata field seedlings are sprayed by using a plant growth accelerator PBO diluted by 400 times.
Example 2
A method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to the height of 60 cm;
(2) coating the 5 th hidden bud to the 15 th hidden bud of the vegetative shoot of the ilex verticillata field seedling from top to bottom by adopting 300 times of 15% paclobutrazol wettable powder solution 40 days before the ilex verticillata field seedling naturally sprouts;
(3) coating the 5 th hidden bud to the 15 th hidden bud of the vegetative branch of the ilex verticillata field seedling from top to bottom by using a 350-fold solution of 10% paclobutrazol wettable powder 20 days before the ilex verticillata field seedling naturally sprouts;
(4) in the next year, the nutrient branches of the ilex verticillata field seedlings from the 5 th hidden bud to the 15 th hidden bud from the top to the bottom are smeared by adopting a gibberellin solution of 60 mg/L15 days before the ilex verticillata field seedlings naturally sprout;
in the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
(5) After the germination accelerating agent is coated, after the hidden buds on the vegetative shoots sprout and the lateral shoots of the sprouts stretch to 8cm, the vegetative shoots of the ilex verticillata field seedlings are sprayed by adopting a plant growth accelerator PBO diluted by 350 times.
Example 3
A method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to reach the height of 74 cm;
(2) applying 200 times of 15% paclobutrazol wettable powder to the 5 th hidden bud to 15 th hidden buds from top to bottom of a vegetative shoot of the ilex verticillata field seedling for the first time 35 days before the ilex verticillata field seedling naturally sprouts;
(3) coating the 5 th hidden bud to the 15 th hidden bud of the vegetative branch of the ilex verticillata field seedling from top to bottom by using 400 times of 10% paclobutrazol wettable powder solution 20 days before the ilex verticillata field seedling naturally sprouts;
(4) in the next year, the nutrient branches of the ilex verticillata field seedlings from the 5 th hidden bud to the 15 th hidden bud from the top to the bottom are smeared by adopting a gibberellin solution of 40 mg/L15 days before the ilex verticillata field seedlings naturally sprout.
In the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
Example 4
A method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to reach the height of 55 cm;
(2) coating the 5 th hidden bud to the 15 th hidden bud of the vegetative shoot of the ilex verticillata field seedling from top to bottom by adopting 100 times of 15% paclobutrazol wettable powder liquid 33 days before the ilex verticillata field seedling naturally sprouts;
(3) applying 400 times of 10% paclobutrazol wettable powder to the 5 th hidden bud to 15 th hidden buds from top to bottom of the vegetative shoot of the ilex verticillata field seedling for the second time 18 days before the ilex verticillata field seedling naturally sprouts;
(4) in the next year, the nutrient branches of the ilex verticillata field seedlings from the 5 th hidden bud to the 15 th hidden bud from the top to the bottom are smeared by a gibberellin solution of 38 mg/L10 days before the ilex verticillata field seedlings naturally sprout.
In the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
Comparative example 1
A method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to reach the height of 50 cm;
(2) applying 75 times of 15% paclobutrazol wettable powder liquid 30 days before the natural germination of the ilex verticillata field seedlings to the 5 th hidden bud to 15 hidden buds of the vegetative shoots of the ilex verticillata field seedlings from top to bottom for the first time;
(3) in the next year, the nutrient branches of the ilex verticillata field seedlings from the 5 th hidden bud to the 15 th hidden bud from the top to the bottom are smeared by adopting a gibberellin solution of 50 mg/L10 days before the ilex verticillata field seedlings naturally sprout;
in the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
(4) After the germination accelerating agent is coated, after the hidden buds on the vegetative shoots sprout and the lateral shoots of the sprouts stretch to 5cm, the vegetative shoots of the ilex verticillata field seedlings are sprayed by using a plant growth accelerator PBO diluted by 400 times.
Comparative example 2
A method for improving the branching rate of ilex verticillata is carried out according to the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to reach the height of 50 cm;
(2) in the next year, the nutrient branches of the ilex verticillata field seedlings from the 5 th hidden bud to the 15 th hidden bud from the top to the bottom are smeared by adopting a gibberellin solution of 50 mg/L10 days before the ilex verticillata field seedlings naturally sprout;
in the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
(3) After the germination accelerating agent is coated, after the hidden buds on the vegetative shoots sprout and the lateral shoots of the sprouts stretch to 5cm, the vegetative shoots of the ilex verticillata field seedlings are sprayed by using a plant growth accelerator PBO diluted by 400 times.
Blank control group
In the blank control group, when the ilex verticillata field planting seedling is cultured, the hidden bud on the nutrition branch of the ilex verticillata field planting seedling is not coated.
The ilex verticillata shoot rate in examples 1-4, comparative examples 1-2 and blank control group was counted, and the results are shown in the following table:
as can be seen from the above table, the average number of shoots of ilex verticillata treated by the method of the present invention was significantly higher than that of the comparative examples and the blank control. The ilex verticillata processed by the method has the advantages that the number of branches is 12-14, the branching rate of ilex verticillata is greatly improved, and accordingly the ilex verticillata has enough branches for the requirements of cutting, cuttage and pruning, and the ilex verticillata has high application value and economic value.
The embodiments of the present invention have been described in detail with reference to the examples, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (5)
1. A method for improving the branching rate of ilex verticillata is characterized by comprising the following steps:
(1) cultivating the ilex verticillata field seedlings: selecting strong North America holly field seedlings which are free from diseases and insect pests and have definite natural germination time, and culturing the North America holly field seedlings to a height of 50-75 cm;
(2) applying 75-300 times of 15% paclobutrazol wettable powder liquid 30-40 days before the natural germination of the ilex verticillata field seedlings to the 5 th hidden bud to 15 hidden buds of the vegetative shoots of the ilex verticillata field seedlings from top to bottom for the first time;
(3) applying 10% paclobutrazol wettable powder 300-500 times liquid to the 5 th hidden bud to the 15 th hidden bud from top to bottom of the vegetative shoot of the ilex verticillata field seedling for the second time 10-25 days before the ilex verticillata field seedling naturally sprouts;
(4) in the next year, applying a germination accelerating agent to 5 th hidden bud to 15 th hidden buds of the vegetative shoot of the ilex verticillata field seedling from top to bottom 10-20 days before the ilex verticillata field seedling naturally sprouts;
in the step (2), the step (3) and the step (4), the hidden buds are coated within one month, and water flow is controlled to be prevented from washing the vegetative shoots planted in the ilex verticillata field.
2. The method for improving the branch drawing rate of ilex verticillata as claimed in claim 1, wherein the vegetative shoots of ilex verticillata field seedlings are sprayed with the plant growth promoter after the germination of the vegetative shoots and the elongation of the lateral shoots of the shoots at germination are 4-8cm after the germination accelerating agent in step (4) is applied.
3. The method of claim 2, wherein the vegetative shoots of ilex verticillata field seedlings are controlled to have a shoot length of 10-20cm after spraying with the plant growth promoter.
4. The method for improving the branch drawing rate of ilex verticillata according to claim 1, wherein the ilex verticillata field seedlings are cultivated in the step (1) to a height of 55cm-60 cm.
5. The method of claim 1, wherein the germination accelerating agent is gibberellin; the plant growth promoter is PBO.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116250445A (en) * | 2023-03-02 | 2023-06-13 | 江苏省林业科学研究院 | Method for dwarfing and strengthening north american holly potted seedlings |
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| CN102037830A (en) * | 2009-10-20 | 2011-05-04 | 四川国光农化股份有限公司 | Plant growth regulator composition |
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| CN116250445A (en) * | 2023-03-02 | 2023-06-13 | 江苏省林业科学研究院 | Method for dwarfing and strengthening north american holly potted seedlings |
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