Peel-and-pulp-free propagation method for seedlings of juniper blossom

Abstract

The invention relates to the technical field of plant breeding and production, in particular to a breeding method for seedlings of Jujun flowers without pericarp and pulp, which comprises the following steps: S1, picking infructescence; s2, the fruits are picked off from infructescence, mixed with river sand or vermiculite and then soaked with a treatment solution, a roller device is filled with the soaked fruits, and a mixture is obtained through treatment; s3, uniformly sowing the mixture treated in the step S2 on a seedling raising tray; s4, covering with a film, and culturing until seedlings are formed; s5, transplanting the seedlings with the plant height exceeding 4 cm into flowerpots or seedling raising bags; and S6, tending. The invention further provides a roller device for processing the fruits by simulating the strategy that the birds eat the fruits to spread the seeds. By means of the roller device and the propagation method, manual separation of seeds, pulp, peel and the like is not needed, and the labor cost can be saved; and the germination rate of the seeds of the juniper blossom can be effectively increased to 60-70%, the seedling yield can be effectively increased to 40-50%, the seedling raising period of the seedlings of the juniper blossom can be shortened, and the flowering seedlings of the juniper blossom can be obtained in September to December.

Description

Technical Field

[0001] The present invention relates to the technical field of plant breeding and production. More specifically, the present invention relates to a method for propagating Callicarpa pedunculata seedlings without pericarp and pulp. Background Art

[0002] Callicarpa pedunculata is an evergreen shrub of the genus Callicarpa in the family Lamiaceae. It is naturally distributed in provinces such as Zhejiang, Jiangxi, and Fujian in China and grows in mountain slopes and valley thickets below an altitude of 600 m.

[0003] Callicarpa pedunculata is a traditional medicinal plant in southern China. Its roots, stems, leaves, etc. are used as medicine. It is bitter in taste, pungent and warm in nature, and has the effects of dissipating stasis and detumescence, stopping bleeding and relieving pain, and reducing phlegm and relieving cough. At the same time, Callicarpa pedunculata is also a widely used garden plant. With its bright flowers and fruits and long fruiting period, it can be used as a fruit-viewing plant suitable for potted ornamental. In addition, as a native plant, it has good drought resistance and adaptability and has garden applications in slopes, hedges, ground covers, etc. As a berry plant, Callicarpa pedunculata is also an important food source for birds to overwinter in winter and has high ecological value. Therefore, the breeding technology of Callicarpa pedunculata has become a research hotspot.

[0004] At present, there are three forms of propagating Callicarpa pedunculata, namely sowing, cutting, and tissue culture. Among them, the cutting method requires a large number of mother plant branches, the root system development is imperfect, and the propagation coefficient is not high; the tissue culture method requires relatively strict disinfection and experimental conditions, and the lignification problem of woody plants makes the experimental operation and experimental formula complicated, and the propagation is difficult; the sowing method faces problems such as inconsistent seed maturity, less seed quantity caused by bird feeding, long seed dormancy period, and difficult germination of sowing.

[0005] A seedling is a seedling grown from a germinated seed. Generally, it has characteristics such as a well-developed root system, strong vitality, large plasticity, and long lifespan. The cultivation of seedlings conforms to the natural growth and development law of trees, with a complete root system, neat and strong growth of seedlings, and is suitable for large-scale professional production. In nature, the germination and growth process of seedlings mainly depends on frugivorous animals, especially birds. After birds peck at berries, they spit out the seeds or the seeds are excreted after passing through the digestive tract, and the seeds are spread.

[0006] At present, there is no clear technology published for the propagation of Callicarpa formosana seedlings. Wu Jindi reported the effects of three hormones, gibberellin (GA3), naphthaleneacetic acid (NAA), and cytokinin (6-BA), on the seed germination of Callicarpa formosana, and found that the hormones promoted seed germination, which was higher than that of the treatment with clean water, but the highest germination rate was only 35.3% (The effects of hormones on the seed germination of Callicarpa formosana [J]. Jilin Agriculture, 2019(12):2). For other plants in the genus Callicarpa, such as Callicarpa dichotoma (Gui Bingzhong, Chen Dongqing, Deng Yanjuan. Cultivation and maintenance of Callicarpa dichotoma in North China [J]. China Flowers & Horticulture, 2015(4)) and Callicarpa japonica Thunb. (Wang Jinquan, Liang Wenqiang, Wang Jiansheng, et al. Propagation techniques of Callicarpa japonica Thunb. [J]. Journal of Shandong Forestry Science and Technology, 2006, 36(2):58), the sowing methods include: collecting the berries on the mother tree, carrying out steps such as piling up and rubbing, removing the flesh and impurities to obtain seeds, and then sowing in March-April of the following year. However, the fruit of Callicarpa formosana is a berry, with a diameter of only 1-2 mm, and the seed diameter is even smaller, about 1 mm. It is very difficult to remove the pericarp and pulp by means of piling up and rubbing. In summary, the existing propagation technologies have problems such as low seed treatment efficiency, low germination rate, and complex operations. There is an urgent need to develop an efficient method for propagating Callicarpa formosana seedlings to break through the technical barriers of large-scale cultivation and meet the medicinal and garden application needs. Summary of the Invention

[0007] To solve the above problems, the first aspect of the present invention provides a method for propagating Callicarpa formosana seedlings without pericarp and pulp, comprising the following steps:

[0008] S1: Picking the inflorescence;

[0009] S2: Removing the fruits from the inflorescence, mixing them with river sand or vermiculite, soaking them with a treatment solution, filling them into a roller device, and processing to obtain a mixture;

[0010] S3: Evenly sowing the mixture processed in S2 on a seedling tray;

[0011] S4: Covering with a film and cultivating until seedlings are formed;

[0012] S5: Transplanting the seedlings with a plant height exceeding 4 cm into flower pots or seedling bags;

[0013] S6: Cultivating.

[0014] Further, the operation of picking the inflorescence in step S1 is carried out in late December - early January of the following year.

[0015] Further, the inflorescence picked in step S1 is the purple inflorescence on a healthy Callicarpa formosana plant.

[0016] Further, in step S2, the diameter of the river sand is 1-3 mm, and the diameter of the vermiculite is 1-3 mm.

[0017] Further, in step S2, the fruits are mixed with river sand or vermiculite at a volume ratio of (1 - 3):1.

[0018] Further, the treatment liquid in step S2 is a sulfuric acid solution with a volume ratio of 0.2 - 0.5% or a potassium permanganate solution with a mass - volume ratio of 0.5 - 1%.

[0019] Further, the operation of soaking with the treatment liquid in step S2 lasts for 1 - 2 hours.

[0020] Further, before the operation of filling into the drum device in step S2, it is also necessary to filter out the treatment liquid with an 80 - mesh filter screen.

[0021] Further, when filling into the drum device in step S2, it can only be filled to 50 - 60% of the drum volume.

[0022] Further, after filling into the drum device in step S2, it is tumbled and shaken at 38 - 40°C for 4 - 6 hours.

[0023] Further, before the sowing operation in step S3, it also includes rinsing the mixture obtained in S2 with an 80 - mesh filter screen under tap water for 1 - 2 minutes, adding 10 - 15% (volume ratio) of plant ash or oyster shell powder, and adjusting the pH value to 7 - 7.5.

[0024] Further, the substrate of the seedling - raising tray in step S3 is humus soil and perlite (volume ratio 3:1), the substrate thickness is 3 - 4 cm, and the soil - covering thickness is 1 - 3 mm.

[0025] Further, covering the film and cultivating until seedlings are formed in step S4 means arch - covering a transparent nylon film on the seedling - raising tray described in S3 and placing it in a laboratory environment with a temperature higher than 18°C and a humidity greater than 65% for cultivation.

[0026] Further, the seedling - transplanting operation in step S5 is carried out once every 10 days.

[0027] Further, the nurturing in step S6 means applying a compound fertilizer with N - P - K = 15 - 15 - 15 (that is, a compound fertilizer with a nitrogen content of 15%, a phosphorus content of 15%, and a potassium content of 15%) once 15 - 20 days after seedling transplantation. In the later stage, routine weed removal, fertilization, watering, pest and disease control, etc. are carried out for maintenance.

[0028] The second aspect of the present invention provides a drum device for performing step S2 in the reproduction method.

[0029] Further, the drum includes a bamboo tube (1), a bracket (2), an opening (3), a connecting rod (4), a binding rope (5), and a rotating gear (6).

[0030] Further, both ends of the bamboo tube (1) are hermetically connected to the rotating gear (6) and are connected to the bracket (2) through the connecting rod (4).

[0031] Further, the drum further includes a rolling device, and the rolling device is connected to the connecting rod (4).

[0032] Further, the bamboo tube (1) is made of Phyllostachys heterocycla cv. Pubescens, Dendrocalamus membranaceus or Phyllostachys aureosulcata McClure.

[0033] Further, the diameter of the bamboo tube is 5 - 15 cm, and the length of the bamboo joint is 10 - 20 cm.

[0034] Further, the opening (3) is located on the wall of the bamboo tube, the length of the opening (3) is 3 - 5 cm, and the width is 1.5 - 2 cm.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] (1) The reproduction method provided by the present invention clarifies the fruit harvesting time, effectively avoids low yield caused by bird foraging while ensuring the fruit maturity.

[0037] (2) The reproduction method provided by the present invention can effectively improve the seed germination rate and seedling emergence rate of Callicarpa formosana by simulating the strategy of birds feeding on fruits to spread seeds, shorten the seedling raising period of Callicarpa formosana seedlings. The seed germination rate of the present invention reaches 60 - 70%, the seedling emergence rate reaches 40 - 50%, and flowering Callicarpa formosana seedlings can be obtained from September to December.

[0038] (3) The present invention uses a drum device to simulate the process of birds feeding on fruits to spread seeds to process the fruits, without the need for manual separation of seeds from pulp, pericarp, etc., which can effectively improve the reproduction efficiency, save labor costs, and also avoid damage to the seeds during rubbing and washing of the fruits. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 It is a schematic structural diagram of the drum device of the embodiment of the present invention;

[0041] Figure 2 It is a front view of the drum device of the embodiment of the present invention;

[0042] Figure 3 Rear view of the drum device according to an embodiment of the present invention;

[0043] Figure 4 Right view of the drum device according to an embodiment of the present invention.

[0044] Wherein: 1, bamboo tube; 2, bracket; 3, opening; 4, connecting rod; 5, binding rope; 6, rotating gear. Detailed implementation manners

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] An embodiment of the present invention provides a method for propagating the seedlings of Callicarpa formosana without pericarp and pulp, comprising the following steps:

[0047] S1: Picking fruit clusters;

[0048] S2: Removing the fruits from the fruit clusters, mixing with river sand or vermiculite, soaking with a treatment liquid, and filling into a drum device to obtain a mixture;

[0049] S3: Evenly sowing the mixture obtained in S2 on a seedling tray;

[0050] S4: Covering with a film and cultivating until seedlings are formed;

[0051] S5: Transplanting the seedlings with a plant height exceeding 4 cm into flower pots or seedling bags;

[0052] S6: Cultivating.

[0053] Specifically, the operation of picking fruit clusters in step S1 is carried out from late December to early January of the next year, and the purple fruit clusters on healthy Callicarpa formosana plants are selected for picking.

[0054] In the South China region, from September to February of the next year, fruits of Callicarpa formosana will hang on the trees. The present invention clarifies the fruit harvesting time. First, the fruits of Callicarpa formosana mature successively, and clarifying the date ensures the fruit maturity. Second, if the harvesting is too late, the fruits in the field or in the wild have been eaten by birds, and the yield cannot be guaranteed.

[0055] Specifically, in step S2, the fruits are mixed with river sand or vermiculite at a volume ratio of (1 - 3):1, the diameter of the river sand is 1 - 3 mm, and the diameter of the vermiculite is 1 - 3 mm.

[0056] Specifically, the treatment liquid in step S2 is a sulfuric acid solution with a volume ratio of 0.2 - 0.5% or a potassium permanganate solution with a mass - volume ratio of 0.5 - 1%.

[0057] Specifically, the operation of soaking in the treatment liquid described in step S2 lasts for 1 - 2 hours.

[0058] Soaking in the treatment liquid can disinfect the fruit surface on the one hand and corrode the peel and pulp on the other hand, which is beneficial for the seeds to break away from the wrapping of the peel and pulp.

[0059] Specifically, before the operation of filling into the drum device described in step S2, it is also necessary to filter the treatment liquid with an 80 - mesh sieve.

[0060] Specifically, when filling into the drum device described in step S2, only fill to 50 - 60% of the drum volume.

[0061] Specifically, after filling into the drum device described in step S2, tumbling and shaking are carried out for 4 - 6 hours under the condition of 38 - 40°C.

[0062] Step S2 mainly simulates the feeding and digestion processes of birds to process the fruits, obtaining a mixture containing peel, pulp, seeds, river sand or vermiculite, simplifying the process of manually removing the peel and pulp, and improving the breeding efficiency.

[0063] Specifically, before the sowing operation described in step S3, it also includes rinsing the mixture obtained in S2 with an 80 - mesh sieve under tap water for 1 - 2 minutes, adding 10 - 15% (volume ratio) of plant ash or oyster shell powder, and adjusting the pH value to 7 - 7.5.

[0064] Du Honghua seeds prefer a weakly alkaline environment. The present invention uses plant ash or oyster shell powder to adjust the pH value to neutral or weakly alkaline (7 - 7.5), and at the same time provides trace elements such as iron, zinc, and manganese.

[0065] Specifically, the substrate of the seedling tray described in step S3 is humus soil and perlite (volume ratio 3:1), the substrate thickness is 3 - 4 cm, and the soil covering thickness is 1 - 3 mm.

[0066] Specifically, covering the film and cultivating until seedlings are formed in step S4 means arch - covering a transparent nylon film on the seedling tray described in S3 and placing it in a laboratory environment with a temperature higher than 18°C and a humidity greater than 65% for cultivation.

[0067] Specifically, the seedling transplanting operation described in step S5 is carried out every 10 days.

[0068] Due to different picking times, the fruit maturity levels vary, which will cause the seed germination times to be inconsistent. That is, after sowing for 20 - 30 days, the seeds germinate successively; after germination for 30 - 40 days, the seedlings grow to 1 - 4 cm. At this time, taking 10 days as a node, the seedlings exceeding 4 cm are separated and transplanted successively. On the one hand, it can ensure the seedling raising efficiency per unit area and avoid the lack of growth space and nutrients for the seedlings; on the other hand, it can reduce the labor guardianship cost.

[0069] Specifically, the nurturing mentioned in step S6 refers to applying a compound fertilizer with N - P - K = 15 - 15 - 15 (that is, a compound fertilizer with a nitrogen content of 15%, a phosphorus content of 15%, and a potassium content of 15%) once 15 - 20 days after transplanting the seedlings. Subsequently, routine weeding, fertilizing, watering, pest and disease control, etc. are carried out for maintenance.

[0070] The embodiment of the present invention also provides a drum device, the structure of which is as Figures 1-4 shown, and is used to execute step S2 in the reproduction method.

[0071] After birds eat food, the food will pass through the glandular stomach and the gizzard in sequence. The glandular stomach can secrete digestive juices to carry out preliminary chemical digestion on the food. Subsequently, the food enters the gizzard, and the strong muscle contraction in the gizzard will drive the small stones in it to rub against the food, grinding the food into smaller particles. The present invention draws on this process of birds feeding on, digesting fruits, and spreading seed food, and invents a drum device to process fruits, without the need for artificial separation of seeds and pulp, pericarp, etc., mixing with plant ash or oyster shell powder to remove or neutralize inhibitory components such as hydrocyanic acid, ammonia, and ethylene, without the need for seed storage, and breaking seed dormancy. Combining operations such as film covering, sowing can be achieved in winter.

[0072] Specifically, the drum includes a bamboo tube (1), a bracket (2), an opening (3), a connecting rod (4), a binding rope (5), and a rotating gear (6).

[0073] Specifically, both ends of the bamboo tube (1) are hermetically connected to the rotating gear (6), playing a role in rolling and closing both ends. The rotating gear (6) is connected to the bracket (2) through the connecting rod (4).

[0074] Specifically, the drum further includes a rolling device, and the rolling device is connected to the connecting rod (4).

[0075] Specifically, the bamboo tube (1) is made of moso bamboo, yellow bamboo, or golden jade bamboo.

[0076] The materials of the bracket (2), the connecting rod (4), the binding rope (5), and the rotating gear (6) can be selected as the bamboo tube material, or any other materials that can be thought of by those skilled in the art. This application does not make any restrictions on this.

[0077] Specifically, the bamboo tube has a diameter of 5 - 15 cm and the length of the bamboo joints is 10 - 20 cm.

[0078] Specifically, the opening (3) is located on the wall of the bamboo tube. The length of the opening (3) is 3 - 5 cm and the width is 1.5 - 2 cm.

[0079] The following is illustrated with specific embodiments:

[0080] Unless otherwise specified, the experimental methods used in the following embodiments are all conventional methods. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified. The technologies not described in detail are all carried out according to the standard methods well-known to those skilled in the art.

[0081] Example 1 Propagation of Seedlings of Callicarpa formosana without Pericarp and Pulp

[0082] S1: Harvest fruits. In late December, the purple fruits of Callicarpa formosana were collected in the Xihu Botanical Garden in Shenzhen by picking the inflorescences.

[0083] S2: Fruit treatment. The fruits were removed from the inflorescences and mixed with clean river sand (diameter 1 - 3 mm) in a volume ratio of (2:1), soaked in a 0.2% sulfuric acid solution for 1 hour, then the treatment solution was filtered out with an 80 - mesh sieve, and it was poured into a drum and filled to 50 - 60% of the drum volume. It was tumbled and shaken at a temperature of 38°C for 4 hours to obtain a mixture containing pericarp, pulp, seeds, river sand or vermiculite, and placed in a ventilated place to dry in the shade, avoiding long - term direct sunlight.

[0084] S3: Sowing. The treated mixture was rinsed under tap water with an 80 - mesh sieve for 1 minute, admixed with 10% (volume ratio) of plant ash to adjust the pH value to neutral 7.0, and at the same time trace elements such as iron, zinc, and manganese were provided. Subsequently, the seeds were evenly sown in a seedling tray, and the substrate was humus soil and perlite (volume ratio 3:1), the substrate thickness was 3 - 4 cm, and the soil covering thickness was 1 - 3 mm.

[0085] S4: Cover with film and cultivate. A transparent nylon film was arched and covered on the seedling tray and placed in a laboratory environment with a temperature higher than 18°C and a humidity greater than 65%.

[0086] S5: Transplant seedlings. After 20 - 30 days, the seeds germinated successively. 30 - 40 days after germination, the seedlings grew to 1 - 4 cm. Every 10 days, the seedlings with a plant height exceeding 4 cm were transplanted into flower pots or seedling bags.

[0087] S6: Nursing. 15 days after transplanting the seedlings, a compound fertilizer (N - P - K = 15 - 15 - 15) was applied once. In the later stage, routine weeding, fertilizing, watering, pest and disease control and other maintenance were carried out.

[0088] The Callicarpa formosana seeds in this example germinated successively 20 - 30 days after sowing and grew to 1 - 4 cm 30 - 40 days after germination. The seed germination rate was 60%, and the seedling rate reached 40%. Mature individuals with a plant height of 50 - 80 cm and a crown width of 20 - 30 cm could be obtained after 6 - 8 months.

[0089] Example 2 Propagation of Callicarpa formosana Seedlings without Pericarp and Pulp

[0090] S1: Harvest fruits. In early January, purple fruits of Callicarpa formosana were collected in the Shenzhen Fairy Lake Botanical Garden by picking the inflorescences.

[0091] S2: Fruit treatment. The fruits were removed from the inflorescences and mixed with clean vermiculite (1 - 3 mm in diameter) in a volume ratio of (2:1), soaked in 1% potassium permanganate solution for 2 hours, then filtered through an 80 - mesh sieve to remove the treatment solution, and poured into a drum until it filled 50 - 60% of the drum volume. It was tumbled and shaken at 40°C for 6 hours to obtain a mixture containing pericarp, pulp, seeds, river sand or vermiculite, and placed in a ventilated place to dry in the shade, avoiding long - term direct sunlight.

[0092] S3: Sowing. The treated mixture was rinsed under tap water through an 80 - mesh sieve for 2 minutes, admixed with 15% (by volume) of oyster shell powder to adjust the pH value to weakly alkaline 7.5, and at the same time provided with trace elements such as iron, zinc, and manganese. Subsequently, the seeds were evenly sown in a seedling tray with a substrate of humus soil and perlite (volume ratio 3:1), the substrate thickness was 3 - 4 cm, and the soil covering thickness was 1 - 3 mm.

[0093] S4: Cover with film and cultivate. A transparent nylon film was arched over the seedling tray and placed in a laboratory environment with a temperature above 18°C and a humidity greater than 65%.

[0094] S5: Transplant seedlings. Every 10 days, the seedlings with a plant height exceeding 4 cm were transplanted into flower pots or seedling bags.

[0095] S6: Cultivate. 20 days after transplanting, compound fertilizer (N - P - K = 15 - 15 - 15) was applied once. Subsequently, routine weeding, fertilization, watering, pest and disease control and other maintenance were carried out.

[0096] The Callicarpa formosana seeds in this example germinated successively 20 - 30 days after sowing and grew to 1 - 4 cm 30 - 40 days after germination. The seed germination rate was 70%, and the seedling rate reached 50%. Mature individuals with a plant height of 50 - 80 cm and a crown width of 20 - 30 cm could be obtained after 6 - 8 months.

[0097] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A propagation method for Callicarpa formosana seedling without pericarp and pulp, comprising: S1: Picking fruit clusters; S2: Removing the fruits from the fruit clusters, mixing with river sand or vermiculite, soaking in a treatment solution, and filling into a drum device to obtain a mixture; S3: Evenly sowing the mixture obtained in S2 on a seedling tray; S4: Covering with a film and cultivating until seedlings are formed; S5: Transplanting the seedlings with a plant height exceeding 4 cm into flower pots or seedling bags; S6: Nursing.

2. The propagation method according to claim 1, wherein In step S1, the operation of picking fruit clusters is carried out from late December to early January of the next year, and the purple fruit clusters on healthy Callicarpa formosana plants are selected for picking.

3. The propagation method according to claim 1, characterized in that, In step S2, the fruits are mixed with river sand or vermiculite at a volume ratio of (1 - 3):1, the diameter of the river sand is 1 - 3 mm, and the diameter of the vermiculite is 1 - 3 mm.

4. The propagation method according to claim 1, characterized in that, In step S2, the treatment solution is a sulfuric acid solution with a volume ratio of 0.2 - 0.5% or a potassium permanganate solution with a mass - volume ratio of 0.5 - 1%, and the operation of soaking in the treatment solution lasts for 1 - 2 hours.

5. The propagation method according to claim 1, characterized in that Before the sowing operation in step S3, it also includes rinsing the mixture obtained in S2 with an 80 - mesh filter sieve under tap water for 1 - 2 minutes, incorporating plant ash or oyster shell powder with a volume ratio of 10 - 15%, and adjusting the pH value to 7 - 7.

5.

6. The propagation method according to claim 1, wherein In step S3, the substrate of the seedling tray is humus soil and perlite with a volume ratio of 3:1, the thickness of the substrate is 3 - 4 cm, and the thickness of the covering soil is 1 - 3 mm.

7. The propagation method according to claim 1, wherein In step S6, the nursing means applying a compound fertilizer with N - P - K = 15 - 15 - 15 once 15 - 20 days after transplanting the seedlings.

8. A drum device for performing the propagation method according to any one of claims 1 - 7.

9. The drum device according to claim 8, characterized in that, The drum includes a bamboo tube (1), a bracket (2), an opening (3), a connecting rod (4), a binding rope (5), and a rotating gear (6). The two ends of the bamboo tube (1) are hermetically connected to the rotating gear (6), the rotating gear (6) is connected to the bracket (2) through the connecting rod (4), the diameter of the bamboo tube (1) is 5 - 15 cm, the length of the bamboo joint is 10 - 20 cm, and it is made of Phyllostachys heterocycla, Dendrocalamus membranaceus, or Phyllostachys aureosulcata f. spectabilis.

10. The drum device according to claim 8, characterized in that, The opening (3) is located on the wall of the bamboo tube (1), the length of the opening is 3 - 5 cm, and the width is 1.5 - 2 cm.

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