Jasmine liquid cutting propagation device and propagation method

Abstract

The application discloses a jasmine liquid cutting propagation device and a propagation method. The propagation device comprises a cutting groove for containing nutrient solution, which is provided with a water inlet and a water outlet, the bottom of the cutting groove is provided with a plurality of partitions, the plurality of partitions are arranged in a cross manner, and a plurality of planting grooves are formed by the partitions; and a cutting fixed plate is arranged in the cutting groove and located above the partitions, the cutting fixed plate is composed of a plurality of planting plates, a planting hole is arranged in the middle of each planting plate, and the plurality of planting plates are arranged in one-to-one correspondence with the plurality of planting grooves. The device and the method are used for propagating jasmine, the base of the jasmine cutting is in a good growth state, and no mildewing, rotting and pest and disease phenomena are observed. The application provides new technical support for space utilization, procedure simplification, cost saving and yield improvement of jasmine cutting propagation production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plant cultivation, in particular to a jasmine flower liquid cutting propagation device and a propagation method. BACKGROUND

[0002] The main production areas of Chinese jasmine flowers are Yongzhou City of Guangxi Zhuang Autonomous Region, Fuzhou City of Fujian Province, Jianwei County of Sichuan Province and Yuanjiang County of Yunnan Province. Among them, Yongzhou City of Guangxi is the world's production center of jasmine flowers and jasmine tea, with more than 108,000 mu of jasmine flower planting area, and more than 12 million pots of jasmine flower ornamental pot flowers produced annually. The Flower Research Institute of Guangxi Academy of Agricultural Sciences has bred many new and excellent jasmine flower varieties, such as "Hengxian No. 2", "Hengxian No. 3", "Hengxian No. 4" and "Hengxian No. 6", etc. These varieties have more value than the main cultivated variety "Hengxian Double-Petal Jasmine" in terms of ornamental pot flower cultivation, jasmine tea processing and essential oil processing, have high economic benefits and broad market prospects.

[0003] The traditional propagation method of jasmine flowers is mainly cutting propagation, which is suitable for being carried out from April to June every year. Loose, fertile and well-drained fine sand, soil or nutrient soil are selected as the cutting substrate. One-year-old mature branches are selected and cut into cutting sticks with a length of about 8-10 cm. The lower leaves are removed and the base is obliquely cut and soaked in diluted rooting water for half an hour. Then the cutting sticks are taken out and inserted into the sand bed. The roots and buds grow after two months. However, there are some problems in propagating jasmine flowers by using the existing cutting method: 1. The cutting sticks grow roots slowly and the number of roots is small. When cutting is carried out in soil or nutrient soil, the root system is easily damaged during transplanting, which easily leads to the death of cutting seedlings and low transplanting survival rate. The seedlings take a long time to recover and have low quality, which slows down the speed of potting and marketing. 2. The use of substrate or soil for cutting propagation occupies a large area and has a small production per unit area, which cannot meet the needs of small-scale cutting propagation and is not suitable for popularization and cultivation in small-scale jasmine flower planters. 3. The use of fine sand bed, soil or nutrient soil for cutting requires a large number of manual operations for cutting and frequent manual spraying for maintaining the moisture of the substrate, which wastes labor costs. The disinfection of the substrate is required to be high, and poor disinfection and sterilization can easily cause diseases and insect pests in the cutting sticks of jasmine flowers. 4. When the size of the cutting sticks is large (length ≥ 15 cm), the survival rate of cutting is low. Therefore, in production, thin branches are selected and the size of the cutting sticks is small, which slows down the formation of cutting seedlings and makes the formation effect unsatisfactory. At the same time, the use of the existing cutting method to propagate new and excellent jasmine flower varieties also has the problems of low rooting rate of cutting sticks, underdeveloped root system, low transplanting survival rate, slow formation of cutting seedlings and low quality of seedlings.

[0004] The information disclosed in this Background section is only for the purpose of increasing an understanding of the general context of the present application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art. SUMMARY

[0005] The present application aims to provide a jasmine liquid cutting propagation device and propagation method, so as to overcome the shortcomings of the prior art, such as underdeveloped root system of jasmine cutting propagation seedlings, low survival rate of transplanting, and low quality of cutting seedlings.

[0006] To achieve the above-mentioned purpose, the present application provides a jasmine liquid cutting propagation device, comprising: a cutting groove for containing nutrient solution, provided with a water inlet and a water outlet, the bottom of the cutting groove is provided with a plurality of partitions, the plurality of partitions are arranged in cross, and a plurality of planting grooves are formed by the partitions; and a cutting fixed plate arranged in the cutting groove and above the partitions, the cutting fixed plate is composed of a plurality of planting plates, a planting hole is arranged in the middle of each planting plate, and a plurality of planting plates are arranged one by one corresponding to a plurality of planting grooves.

[0007] Preferably, in the above technical solution, the bottom of the cutting groove is provided with a heater, the heater is connected with a temperature controller, the temperature controller is connected with a temperature probe, and the temperature probe is used to detect the temperature of the nutrient solution in the cutting groove.

[0008] Preferably, in the above technical solution, a plurality of notches are arranged around the planting hole on the planting plate.

[0009] Preferably, in the above technical solution, the cutting groove is made of translucent tea-colored glass; and / or the cutting fixed plate is made of degradable wood pulp cotton material.

[0010] A jasmine liquid cutting propagation method using the above device for propagation, comprising the following steps:

[0011] (1) Pretreatment of cutting: selecting semi-lignified branches as cutting, retaining leaves on the upper part of the cutting, and then disinfecting;

[0012] (2) Preparation of nutrient solution: preparing root-promoting nutrient solution, seedling-strengthening nutrient solution and spraying nutrient solution respectively;

[0013] The root-promoting nutrient solution is mainly made of the following raw materials: naphthalene acetic acid solution, indole-3-butyric acid solution, honey solution, ascorbic acid solution and salicylic acid solution;

[0014] The seedling-strengthening nutrient solution is mainly made of the following raw materials: water-soluble compound fertilizer solution, magnesium sulfate solution, naphthalene acetic acid solution, salicylic acid solution and vitamin B12 solution;

[0015] The spraying nutrient solution is mainly made of the following raw materials: water-soluble compound fertilizer solution, zinc sulfate solution, brassinolide soluble solution and gibberellic acid soluble powder solution.

[0016] (3) Cutting: the cutting is inserted into the planting hole of the cutting fixing plate, and then the cutting fixing plate is put into the cutting groove as a whole;

[0017] (4) Nutrient management and temperature management: the rooting nutrient solution is injected into the cutting groove, and the seedling strengthening nutrient solution is injected into the cutting groove after the cutting is rooted; at the same time, the spraying nutrient solution is sprayed on the upper part of the cutting every certain period of time; the temperature of the nutrient solution in the cutting groove is adjusted;

[0018] (5) Transplanting: when the cutting root system in the planting groove of the cutting groove grows to 2 / 5-4 / 5 of the groove volume, the transplanting is performed.

[0019] Preferably, in the above technical solution, the length of the cutting in step (1) is 15-22 cm, and 2-4 pairs of full leaves are reserved on the upper part of the cutting.

[0020] Preferably, in the above technical solution, the disinfection in step (1) is that the cutting is immersed in the disinfection solution for disinfection, the cutting is soaked for 1-10 min, and then is washed with water for 1-5 min; the disinfection solution is mainly made of the following raw materials: 1-1.5 g / L of potassium permanganate and 1.2-1.8 g / L of carbendazim wettable powder, which are mixed at a volume ratio of 1:1.5-2.

[0021] Preferably, in the above technical solution, the rooting nutrient solution in step (2) is mainly made of the following raw materials: 200-300 mg / L of naphthalene acetic acid solution, 150-250 mg / L of indole-3-butyric acid solution, 600-1000 mg / L of pure honey solution, 150-250 mg / L of ascorbic acid solution and 200-350 mg / L of salicylic acid solution; the volume ratio of the mixed solutions is 1-3:1-3:1-3:1-3:1-2.

[0022] Preferably, in the above technical solution, the seedling strengthening nutrient solution is mainly made of the following raw materials: 1200-1800 times water-soluble compound fertilizer solution with total nutrients ≥55% and effective content ratio of N:P:K being 20-30:5-15:25-35; 300-500 mg / L of magnesium sulfate solution; 150-300 mg / L of naphthalene acetic acid solution, 200-350 mg / L of salicylic acid solution and 150-250 mg / L of vitamin B12 solution; the volume ratio of the mixed solutions is 2-3:1-3:1-3:1-2:1-2.

[0023] Preferably, in the technical scheme, the spraying nutrient solution is mainly made of the following raw materials: total nutrient ≥ 50%, 1500-2200 times water-soluble compound fertilizer solution with the effective content ratio of N:P:K being 15-30:5-15:15-30; 2000-3000 mg / L zinc sulfate solution; 1000-1200 mg / L brassinolide solution with an effective content of 0.01%; 500-1200 mg / L gibberellic acid soluble powder solution with an effective ingredient of 20%; and mixed volume ratio being 2-3:1-3:1-3:1-3.

[0024] Preferably, in the technical scheme, the step (3) is that the base of the cutting is 6-15 cm away from the bottom of the cutting fixed plate, and the base of the cutting is 3-8 cm away from the bottom of the cutting slot.

[0025] Preferably, in the technical scheme, the step (4) is that, after 80-95% of the cuttings are rooted, the seedling nutrient solution is injected, and the seedling nutrient solution is replaced every 8-15 days, and the liquid level is 1-5 cm away from the bottom of the cutting fixed plate; meanwhile, the upper part of the cutting is sprayed with the spraying nutrient solution every 7-15 days, and the spraying amount is 150-300 mL per square.

[0026] Preferably, in the technical scheme, the temperature management is that, in winter, the temperature of the nutrient solution in the cutting slot is 3-8℃ higher than the air temperature, and in summer, the temperature of the nutrient solution in the cutting slot is 1-4℃ higher than the air temperature.

[0027] Compared with the prior art, the present application has the following beneficial effects:

[0028] (1) The jasmine liquid cutting propagation device of the present application forms a plurality of planting grooves in the cutting slot bottom by a partition, and the cutting fixed plate is arranged above the planting grooves, the fixed plate is provided with a plurality of planting holes, the plurality of planting holes are arranged one by one corresponding to the plurality of planting grooves, and each planting hole corresponds to one cutting. The cutting position is effectively fixed by the cutting fixed plate, and the cuttings are kept at a reasonable interval; the growth range of the cutting root system is limited by the small grooves in the cutting slot, and the root systems of the cuttings are prevented from intertwining, and the cutting disc is further promoted, and the survival rate of the cutting seedlings after transplanting is improved.

[0029] (2) The cutting slot of the present application is provided with a heater, which can adjust the temperature of the solution in the cutting slot according to the weather temperature, so that the rooting part of the cutting is in the most suitable temperature environment, effectively promoting the rooting and root growth of the cutting. The cutting slot is surrounded by translucent tea-colored glass, which can avoid the oxidation of the new root system by light; at the same time, the base of the cutting can be observed regularly through the glass, and if there is base rotting, mildewing and the like, the cutting can be taken out and replaced in time, effectively saving the cutting time. The cutting board of degradable wood pulp cotton does not need to be taken out when the cutting seedlings are transplanted, but is buried in the nutrient soil together, which can play the role of water retention and fertilizer absorption and release, effectively improving the drought resistance of the cutting seedlings and promoting the growth of the cutting seedlings after transplanting.

[0030] (3) The liquid cutting propagation method of jasmine flowers according to the present application uses different effective component proportions to prepare nutrient solution for cutting according to the plant characteristics of jasmine flowers, and uses different nutrient solutions in different growth periods. The method can improve the rooting rate and the number of roots of jasmine flowers, make the root system of the cutting seedlings develop, and improve the resistance. The method effectively combines the rooting and strong seedling, and the cutting seedlings can be directly transplanted after survival, which avoids causing mechanical damage to the root system of the cutting seedlings and improves the survival rate of transplanting.

[0031] (4) The method of the present application uses liquid cutting propagation, which is less affected by the environment and is not limited by seasons. The method makes full use of the space of the cutting propagation site, saves production site space, and is well applied in small-scale planters and family farms. The cutting process does not use cutting substrates, nutrient soil, flowerpots and hole trays and other agricultural materials, which greatly saves the production cost of cutting propagation. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic view of the liquid cutting propagation device for jasmine flowers according to the present application.

[0033] MAIN REFERENCE NUMERALS EXPLANATION:

[0034] 1-cutting slot, 11-water outlet, 12-separation plate, 13-planting slot, 2-cutting fixed plate, 21-planting plate, 22-planting hole, 23-cut, 3-temperature probe, 31-first temperature probe, 32-second temperature probe. DETAILED DESCRIPTION

[0035] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiments.

[0036] Unless otherwise explicitly stated, in the entire specification and claims, the term "comprise" or its variants such as "include" or "comprising" and the like will be understood to include the stated element or component, but not exclude the presence of other elements or components.

[0037] AsFigure 1 As shown, according to the specific embodiment of the present application, a jasmine liquid cutting propagation device comprises a cutting groove 1 for containing nutrient solution and a cutting stick fixing plate 2 placed in the cutting groove 1 and on which the cutting stick is fixed, and the bottom of the cutting stick groove extends to the bottom of the cutting stick groove for cultivation and propagation through the nutrient solution.

[0038] The specific structure is as follows: the cutting groove 1 is used for containing nutrient solution, the height of the cutting groove is 20-30 cm, and the cutting groove 1 is made of translucent tea-colored glass around the groove wall. The light transmittance of the tea-colored glass is 50-70%, and the translucent tea-colored glass can avoid the photo-oxidation of the root system of the newly born plants. At the same time, the base of the cutting stick can be regularly observed through the glass, and if there is base rotting, mildewing and the like, the cutting stick can be timely taken out and replaced, effectively saving the cutting time. The cutting groove 1 is provided with a water inlet (not shown in the figure) and a water outlet 11, the nutrient solution flows in from the water inlet and is discharged through the water outlet 11, which is convenient for regular replacement of the nutrient solution. The bottom of the cutting groove 1 is provided with a plurality of partitions 12, the plurality of partitions 12 are arranged perpendicularly and crossly to form a plurality of small planting grooves 13. The side length of the planting groove 13 is 3-5 cm, and the height is 5-20 cm, which is used for limiting the growth range of the cutting stick root system and promoting the root system of the cutting stick to grow in a disc shape.

[0039] The cutting groove 1 is provided with the cutting stick fixing plate 2, and the cutting stick fixing plate is made of degradable wood pulp cotton material. The cutting stick fixing plate made of degradable wood pulp cotton does not need to be taken out when the cutting seedlings are transplanted, but is buried in the nutrient soil, which can play a role in water retention and fertilizer absorption and release, effectively improve the drought resistance of the cutting seedlings, and promote the growth of the cutting seedlings after transplanting. The cutting stick fixing plate 2 is located above the partition 12, and the cutting stick fixing plate 2 is composed of a plurality of planting plates 21, and the planting plate is a square small block with a side length of 3-5 cm. Preferably, the plurality of planting plates 21 are integrally formed, and there is a gap between the adjacent two planting plates 21 on the lower surface. When installed, the partition 12 is clamped into the gap of the cutting stick fixing plate 2, the cutting stick fixing plate 2 is fixed above the partition, the installation of the cutting stick fixing plate 2 is more stable, and it is also convenient to tear and separate during transplanting. The plurality of planting plates 21 and the planting grooves 13 below are one-to-one corresponding, each planting plate 21 is provided with a circular planting hole 22 in the middle, the cutting stick is inserted into the planting hole 22 in the middle of the planting plate 21 during cutting, and the lower end extends into the planting groove 13. Preferably, a cross-shaped notch 23 is opened around the planting hole 22 on the planting plate 21, which is convenient for inserting and fixing the cutting stick.

[0040] Preferably, the bottom of the cutting slot 1 is provided with a heater (not shown in the figure), which is a heating coil located at the bottom of the cutting slot 1 for heating the nutrient solution. Preferably, the heating coil is covered with a layer of partition with multiple through holes to prevent the plant roots from directly contacting the heating coil and burning the roots. The heater is connected to a temperature controller (not shown in the figure), and the temperature connector is connected to a temperature probe 3, which has two temperature probes, a first temperature probe 31 for detecting the temperature of the air, and a second temperature probe 32 for detecting the temperature of the nutrient solution in the cutting slot 1. The temperature control during the cultivation and propagation of jasmine flowers is as follows: the temperature of the nutrient solution is 3-8℃ higher than the air temperature in winter, and the temperature of the nutrient solution is 1-4℃ higher than the air temperature in summer. Through the temperature probe, temperature controller and heater, the temperature of the nutrient solution can be accurately and flexibly controlled, the temperature of the nutrient solution is 3-8℃ higher than the air temperature in winter, and the temperature of the nutrient solution is 1-4℃ higher than the air temperature in summer, so that the rooting part of the cutting is in the most suitable temperature environment, which effectively promotes the rooting and root growth of the cutting.

[0041] Example 1

[0042] A method for liquid cutting propagation of jasmine flowers, using the above device for propagation, comprising the following steps:

[0043] (1) Pretreatment of cutting: selecting semi-lignified branches as cuttings, cutting the cuttings to a length of 15-22 cm, and leaving 2-4 pairs of opposite whole leaves on the upper part of the cuttings.

[0044] (2) Disinfection of cuttings: bundle the cuttings and immerse the whole bundle in disinfectant solution for disinfection. The disinfectant solution is a mixture of potassium permanganate 1g / L and carbendazim wettable powder 1.8g / L at a volume ratio of 1:1.5, and the cuttings are soaked for 3 minutes, then rinsed with water for 3 minutes.

[0045] (3) Preparation of nutrient solution: prepare root-promoting nutrient solution, seedling-strengthening nutrient solution and spraying nutrient solution respectively;

[0046] The root-promoting nutrient solution is mainly made of the following raw materials: 200mg / L naphthalene acetic acid solution; 250mg / L indole-3-butyric acid solution; 600mg / L pure honey solution; 250mg / L ascorbic acid solution and 200mg / L salicylic acid solution; the volume ratio of the mixture is 1:1:3:3:1.

[0047] The seedling-strengthening nutrient solution is mainly made of the following raw materials: total nutrient ≥55%, 1200 times water-soluble compound fertilizer solution with effective content ratio of N:P:K being 20:15:25; 500mg / L magnesium sulfate solution; 150mg / L naphthalene acetic acid solution and 350mg / L salicylic acid solution and 150mg / L vitamin B12 solution; the volume ratio of the mixture is 2:3:1:1:2.

[0048] The spraying nutrient solution is mainly made of the following raw materials: 1500 times water-soluble compound fertilizer solution with total nutrient ≥50%, effective content ratio of N:P:K being 15:15:15; 3000 mg / L zinc sulfate solution; 1000 mg / L brassinolide soluble solution (effective content 0.01%); 1200 mg / L gibberellic acid soluble powder (effective ingredient 20%); and mixed volume ratio being 3:1:1:3.

[0049] (4) Cutting: insert the cutting into the small hole of the fixing plate, and put the cutting fixing plate into the cutting slot as a whole. The base of the cutting is 6-15 cm away from the bottom surface of the cutting fixing plate, and the base of the cutting is 3-8 cm away from the bottom of the cutting slot.

[0050] (5) Nutrient management: from the day of cutting to 80% of the cuttings rooting, use the rooting nutrient solution, and change the nutrient solution every 8 days. The above rooting nutrient solution is poured into the cutting slot, and the liquid surface is just in contact with the bottom of the cutting fixing plate.

[0051] When 80% of the cuttings root, use the seedling nutrient solution, and change the nutrient solution every 8 days. The above seedling nutrient solution is poured into the cutting slot, and the liquid surface is 2-5 cm away from the bottom of the cutting fixing plate; at the same time, the upper part of the cutting is sprayed with the spraying nutrient solution every 7 days, and the spraying amount per square meter is 150 mL.

[0052] Temperature management: in winter, the temperature of the nutrient solution in the cutting slot is 3°C higher than the air temperature, and in summer, the temperature of the nutrient solution in the cutting slot is 1°C higher than the air temperature.

[0053] (5) Transplanting: when the cutting root system in the planting slot of the cutting slot grows to 2 / 5-4 / 5 of the slot volume, transplanting is performed.

[0054] Example 2

[0055] A jasmine flower liquid cutting propagation method using the above device for propagation, comprising the following steps:

[0056] (1) Pretreatment of cutting: select semi-lignified branches as cuttings, cut the cuttings to a length of 15-22 cm, and leave 2-4 pairs of opposite whole leaves on the upper part of the cutting.

[0057] (2) Disinfection of cutting: bundle the cuttings, and disinfect the whole bundle by immersing it in a disinfectant solution. The disinfectant solution is a mixture of potassium permanganate 1.3 g / L and carbendazim wettable powder 1.6 g / L at a volume ratio of 1:1.8. Soak the cuttings for 3 min, and then rinse them with water for 3 min.

[0058] (3) Preparation of nutrient solution: prepare rooting nutrient solution, seedling nutrient solution and spraying nutrient solution respectively;

[0059] The root promoting nutrient solution is mainly made of the following raw materials: 250mg / L of naphthalene acetic acid solution; 200mg / L of indole-3-butyric acid solution; 800mg / L of pure honey solution; 200mg / L of ascorbic acid solution and 300mg / L of salicylic acid solution; the mixed volume ratio is 2:2:2:2:1.

[0060] The seedling strengthening nutrient solution is mainly made of the following raw materials: total nutrient ≥55%, 1600 times water-soluble compound fertilizer solution with effective content ratio of N:P:K being 25:8:30; 400mg / L of magnesium sulfate solution; 200mg / L of naphthalene acetic acid solution and 280mg / L of salicylic acid solution and 200mg / L of vitamin B12 solution; the mixed volume ratio is 3:2:2:1:1.

[0061] The spraying nutrient solution is mainly made of the following raw materials: total nutrient ≥50%, 2000 times water-soluble compound fertilizer solution with effective content ratio of N:P:K being 25:10:20; 2500mg / L of zinc sulfate solution; 1100mg / L of brassinolide soluble solution (effective content 0.01%) solution; 900mg / L of gibberellic acid soluble powder (effective ingredient 20%) solution; the mixed volume ratio is 2:3:2:2.

[0062] (4) Cutting: insert the cuttings into the small holes of the fixing plate, and put the whole cutting fixing plate into the cutting slot. The base of the cutting is 6-15cm away from the bottom surface of the cutting fixing plate, and the base of the cutting is 3-8cm away from the bottom of the cutting slot.

[0063] (5) Nutrient management: from the day of cutting to 90% of the cuttings rooting, the root promoting nutrient solution is used, and the nutrient solution is replaced every 12 days. The above-mentioned root promoting nutrient solution is poured into the cutting slot, and the liquid surface is just in contact with the bottom of the cutting fixing plate.

[0064] When 90% of the cuttings root, the seedling strengthening nutrient solution is used, and the nutrient solution is replaced every 12 days. The above-mentioned seedling strengthening nutrient solution is poured into the cutting slot, and the liquid surface is 2-5cm away from the bottom of the cutting fixing plate; at the same time, the upper part of the cutting is sprayed with the spraying nutrient solution every 12 days, and the spraying amount per square meter is 230mL.

[0065] Temperature management: the temperature of the nutrient solution in the cutting slot is higher than the air temperature by 5℃ in winter, and the temperature of the nutrient solution in the cutting slot is higher than the air temperature by 3℃ in summer.

[0066] (5) Transplanting: when the cutting root system in the planting slot of the cutting slot grows to 2 / 5-4 / 5 of the slot volume, transplanting is carried out.

[0067] Example 3

[0068] A jasmine flower liquid cutting propagation method using the above-mentioned device for propagation, comprising the following steps:

[0069] (1) Pretreatment of cutting: Select semi-lignified branches as cutting, cut the cutting to 15-22 cm in length, and leave 2-4 pairs of opposite whole leaves on the upper part of the cutting.

[0070] (2) Disinfection of cutting: Bundle the cutting, and disinfect the whole bundle by immersing it in a disinfectant solution, which is a mixture of 1.5 g / L potassium permanganate and 1.2 g / L wettable powder of carbendazim at a volume ratio of 1:2, for 3 min, and then rinse the cutting with water for 3 min.

[0071] (3) Preparation of nutrient solution: Prepare root-promoting nutrient solution, seedling-strengthening nutrient solution, and spraying nutrient solution, respectively;

[0072] The root-promoting nutrient solution is mainly made of the following raw materials: 300 mg / L naphthaleneacetic acid solution, 150 mg / L indole-3-butyric acid solution, 1000 mg / L pure honey solution, 150 mg / L ascorbic acid solution, and 350 mg / L salicylic acid solution; the volume ratio of the mixture is 3:3:1:1:2.

[0073] The seedling-strengthening nutrient solution is mainly made of the following raw materials: 1200 times water-soluble compound fertilizer solution with total nutrients ≥55% and N:P:K effective content ratio of 30:5:35, 300 mg / L magnesium sulfate solution, 300 mg / L naphthaleneacetic acid solution, 200 mg / L salicylic acid solution, and 250 mg / L vitamin B12 solution; the volume ratio of the mixture is 3:1:3:2:2.

[0074] The spraying nutrient solution is mainly made of the following raw materials: 2200 times water-soluble compound fertilizer solution with total nutrients ≥50% and N:P:K effective content ratio of 30:15:30, 2000 mg / L zinc sulfate solution, 1200 mg / L brassinolide soluble solution (effective content 0.01%), 500 mg / L gibberellic acid soluble powder (effective ingredient 20%); the volume ratio of the mixture is 2:3:3:1.

[0075] (4) Cutting: Insert the cutting into the small holes of the fixing plate, and put the whole cutting fixing plate into the cutting slot. The base of the cutting is 6-15 cm away from the bottom surface of the cutting fixing plate, and the base of the cutting is 3-8 cm away from the bottom of the cutting slot.

[0076] (5) Nutrient management: From the day of cutting to 95% of the cutting rooting, use the root-promoting nutrient solution, and replace the nutrient solution every 15 days. Pour the above-mentioned root-promoting nutrient solution into the cutting slot, and the liquid level should just touch the bottom of the cutting fixing plate.

[0077] When 95% of the cuttings have rooted, use a strong seedling nutrient solution, replace the nutrient solution every 15 days, pour the above-mentioned strong seedling nutrient solution into the cutting slot, and the liquid level is 2-5 cm from the bottom of the cutting fixed plate; at the same time, spray the upper part of the cutting with a nutrient solution every 15 days, and the spraying amount per square meter is 300 mL.

[0078] Temperature management, the nutrient solution temperature in the cutting slot is 8°C higher than the air temperature in winter, and the nutrient solution temperature in the cutting slot is 4°C higher than the air temperature in summer.

[0079] (5) Transplanting: when the cutting root system in the planting slot in the cutting slot grows to 2 / 5-4 / 5 of the slot volume, transplanting is performed.

[0080] Comparative Example 1

[0081] The cutting propagation is carried out by the method of nutrient soil plug cutting, and the cutting method comprises:

[0082] (1) Pretreatment of cuttings: select semi-lignified branches as cuttings, cut the cuttings to a length of 15-22 cm, and leave 2-4 pairs of opposite whole leaves on the upper part of the cuttings.

[0083] (2) Disinfection of cuttings: bundle the cuttings, and disinfect the whole bundle by immersing it in a disinfectant solution. The disinfectant solution is a mixture of potassium permanganate 1.5 g / L and carbendazim wettable powder 1.2 g / L at a volume ratio of 1:2, and the cuttings are soaked for 3 min, and then rinsed with water for 3 min.

[0084] (3) Rooting agent treatment: immerse the base 3-5 cm of the cutting in rooting water for soaking treatment. The rooting water is a mixture of naphthalene acetic acid 600 mg / L and indole-3-butyric acid 600 mg / L at a volume ratio of 1:1, and the cuttings are soaked for 3 h.

[0085] (4) Preparation of nutrient soil: the nutrient soil is a mixture of peat and perlite at a volume ratio of 2:1, which is then filled into 32-hole seedling plug trays. 3 days before cutting, the nutrient soil is sprayed with carbendazim wettable powder 1.0 g / L for sterilization and disinfection, and the nutrient soil is watered before cutting.

[0086] (5) Cutting: one cutting is cut per hole. Before cutting, a wooden stick is used to punch a hole in the nutrient soil to a depth of 4-6 cm, and then the cutting is inserted into the hole, and the nutrient soil around the cutting is pinched.

[0087] (6) Post-cutting management: intermittent spraying is used to keep the cutting nutrient soil moist.

[0088] Comparative Example 2

[0089] The cutting propagation is carried out by the method of yellow heart soil plug cutting, and the cutting method comprises:

[0090] (1) Pre-treatment of the cutting: select semi-lignified branches as the cutting, cut the cutting to a length of 15-22 cm, and leave 2-4 pairs of whole leaves on the upper part of the cutting.

[0091] (2) Disinfection of the cutting: bundle the cutting, and disinfect the whole bundle by immersing it in a disinfectant solution, the disinfectant solution is a mixture of 1.5 g / L potassium permanganate and 1.2 g / L wettable powder of carbendazim at a volume ratio of 1:2, soak the cutting for 3 min, and then rinse it with water for 3 min.

[0092] (3) Treatment with rooting agent: immerse the base of the cutting in rooting water for soaking treatment, the rooting water is a mixture of 600 mg / L naphthalene acetic acid and 600 mg / L indole-3-butyric acid at a volume ratio of 1:1, soak the cutting for 3 h.

[0093] (4) Disinfection of the yellow heart soil: fill the yellow heart soil in 32-hole seedling hole trays, and spray the yellow heart soil with 1.0 g / L wettable powder of carbendazim for sterilization 3 days before cutting, and pour water into the yellow heart soil before cutting.

[0094] (5) Cutting: cut one cutting per hole, first punch a hole in the yellow heart soil with a wooden stick before cutting, the depth is 4-6 cm, then insert the cutting into the hole, and press the yellow heart soil around the cutting.

[0095] (6) Post-cutting management: use intermittent spraying to keep the yellow heart soil moist.

[0096] Test Example

[0097] Test Example 1

[0098] The methods described in Examples 1-3 are respectively applied in the cutting propagation production of main cultivars of jasmine (Hengxian double-petal jasmine), the method of nutrient soil hole cutting is taken as Comparative Example 1 (CK1), and the method of yellow heart soil hole cutting is taken as Comparative Example 2 (CK2). That is, the difference between Comparative Example 1 and Comparative Example 2 lies in the different cutting substrates and cutting containers. 200 jasmine plants are cut and propagated in each treatment, and observation is made.

[0099] The rooting rate of the cutting of main cultivars of jasmine (Hengxian double-petal jasmine) after 40 days of cutting, and the rooting rate, root length and root number of the cutting of main cultivars of jasmine (Hengxian double-petal jasmine) after 60 days of cutting are determined, and the results are shown in Table 1.

[0100] Table 1 Comparison of rooting rate and growth index of cuttings by different cutting methods

[0101]

[0102] As can be seen from Table 1, the rooting rate of the cutting of the main cultivar of jasmine flower after 45 days, the rooting rate after 60 days, the average root length and the root quantity are all significantly higher than those of the control 1 and the control 2, the rooting rate, the average root length and the root quantity are important indexes for measuring the cutting effect, and the experimental results fully show that, compared with the current traditional cutting method, the method of the application is beneficial to shorten the rooting time, improve the rooting rate and rooting quality of the cutting of the main cultivar of jasmine flower. In combination with the actual sampling observation, the base growth state of the cutting of the jasmine flower is good, and there is no mildew, rot and pest phenomenon. The application provides new technical support for the space utilization, procedure simplification, cost saving and yield improvement of the cutting propagation production of the jasmine flower.

[0103] Test Example 2

[0104] The methods described in Examples 1-3 are respectively applied in the cutting propagation production of the new excellent species of jasmine flower, the method of the nutrient soil plug cutting is taken as the control 1 (CK1), and the method of the yellow heart soil plug cutting is taken as the control 2 (CK2). That is, the difference between the control 1 and the control 2 lies in the different cutting substrates and cutting containers. The rooting rate of the cutting of the new excellent species of jasmine flower after 40 days, and the rooting rate, the root length and the root quantity of the cutting of the new excellent species of jasmine flower after 60 days are determined, and the results are shown in Table 3. The new excellent species of jasmine flower for test includes "Xiangfei No. 2", "Xiangfei No. 3", "Xiangfei No. 4" and "Xiangfei No. 6" in Table 2. When the cutting propagation test is carried out, four new excellent species of jasmine flower are cut in each treatment method, and 100 plants of each species of jasmine flower are planted. For example, 100 plants of "Xiangfei No. 2", 100 plants of "Xiangfei No. 3", 100 plants of "Xiangfei No. 4" and 100 plants of "Xiangfei No. 6" are planted by using the method of Example 1.

[0105] The cutting quantity of Examples 2 and 3, and the control 1 and the control 2 is also the same.

[0106] Table 2 Information Table of New Excellent Species of Jasmine Flower for Test

[0107]

[0108] Table 3 Comparison of Determination of Rooting Rate and Growth Indexes of Cuttings of Different Cutting Methods

[0109]

[0110]

[0111] As can be seen from Table 3, the rooting rate of the new jasmine variety cutting after 40 days, the rooting rate after 60 days, the average root length and the root quantity of the new jasmine variety cutting by the method of the application are all significantly higher than those of the control 1 and the control 2. The rooting rate, the average root length and the root quantity are important indexes for measuring the cutting effect. The experimental results fully show that, compared with the current traditional cutting method, the method of the application is beneficial to shorten the rooting time, improve the rooting rate and rooting quality of the new jasmine variety cutting. In combination with the actual sampling observation, the base growth state of the jasmine cutting by the method of the application is good, and there is no mold, rot and pest phenomenon. The application provides new technical support for space utilization, procedure simplification, cost saving and yield improvement of the jasmine cutting propagation production.

[0112] Test Example 3

[0113] The control (CK) has the same cutting propagation method as that of Example 2, except that the control group is not subjected to the temperature management and is cultured at the natural temperature.

[0114] The methods described in Examples 1-3 are respectively applied in the jasmine cutting propagation production, and the liquid cutting method without temperature is taken as the control (CK). That is, the difference of the control lies in the temperature control of the cutting base. 200 jasmine plants are subjected to the cutting propagation in each treatment, and observation is performed.

[0115] The rooting rate of the main cultivar (Hengxian double-petal jasmine) cutting after 40 days, and the rooting rate, the root length and the root quantity of the main cultivar (Hengxian double-petal jasmine) cutting after 60 days are determined, and the results are shown in Table 4.

[0116] Table 4 Influence of different liquid cutting temperatures on the rooting rate and growth indexes of cuttings

[0117]

[0118] As can be seen from Table 4, the rooting rate of the jasmine cutting after 40 days, the rooting rate after 60 days, the average root length and the root quantity of the jasmine cutting by the method of the application are all significantly higher than those of the control. The rooting rate, the average root length and the root quantity are important indexes for measuring the cutting effect. The experimental results fully show that, in the jasmine liquid cutting, the cutting tank adopting the temperature management is more beneficial to shorten the rooting time, improve the rooting rate and rooting quality of the jasmine cutting.

[0119] Test Example 4

[0120] In the test example, the control 1 (CK1) and the cutting propagation method of Example 2 are different in that the rooting liquid is used for the cutting propagation in the whole cutting process.

[0121] The difference between Control 2 (CK2) and the cutting propagation method of Example 2 is that the whole cutting propagation is carried out using the strong seedling nutrient solution.

[0122] The methods described in Examples 1-3 are respectively applied in the jasmine cutting propagation production, and the methods of using the root-promoting nutrient solution and the strong seedling nutrient solution in the whole cutting propagation are respectively taken as Control 1 (CK1) and Control 2 (CK2). That is, the difference between the controls lies in the different nutrient solutions used. 200 jasmine plants are cut and propagated in each treatment, and observation is carried out.

[0123] The rooting rate of the cutting stock of the main cultivar (Hengxian double-petal jasmine) of jasmine after 40 days of cutting, and the rooting rate, root length and root number of the cutting stock of the main cultivar (Hengxian double-petal jasmine) of jasmine after 60 days of cutting are determined, and the results are shown in Table 5.

[0124] Table 5 Influence of different nutrient solution treatment methods on the rooting rate and growth indexes of cutting stock

[0125]

[0126] As can be seen from Table 5, the average root length and root number of the jasmine cutting stock cut by the method of the present application are significantly higher than those of Control 1, and the rooting rates of the cutting stock after 45 days and 60 days of cutting are significantly higher than those of Control 2. The rooting rate, average root length and root number are important indexes for measuring the cutting effect, and the experimental results fully demonstrate that the use of the root-promoting nutrient solution and the strong seedling nutrient solution in stages in the present application is beneficial to shortening the rooting time, improving the cutting rooting rate and the rooting quality of the cutting stock of jasmine. The rooting nutrient solution can better promote the formation of the root system of the newly cut cutting stock, and the strong seedling nutrient solution is more focused on the further growth of the root system after the cutting stock is rooted.

[0127] The foregoing description of specific exemplary embodiments of the application is intended to be illustrative only and is not intended to limit the application to the precise forms described. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application to thereby enable others skilled in the art to best utilize the application and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the application be defined by the claims and their equivalents.

Claims

1. A method for liquid propagation of jasmine flowers, characterized in that, Using a jasmine liquid cutting propagation device, the following steps are included: (1) Pretreatment of cuttings: Select semi-lignified branches as cuttings, retain the leaves on the upper part of the cuttings, and then disinfect them; (2) Preparation of nutrient solutions: Prepare root-promoting nutrient solution, seedling-strengthening nutrient solution and spray nutrient solution respectively; The root-promoting nutrient solution is made from the following raw materials: naphthaleneacetic acid solution, indole-3-butyric acid solution, honey solution, ascorbic acid solution, and salicylic acid solution; The seedling nutrient solution is made from the following raw materials: water-soluble compound fertilizer solution, magnesium sulfate solution, naphthaleneacetic acid solution, salicylic acid solution, and vitamin B12 solution; The nutrient solution for spraying is made from the following raw materials: water-soluble compound fertilizer solution, zinc sulfate solution, brassinolide soluble solution and gibberellic acid soluble powder solution; (3) Cuttings: Insert the cuttings into the planting holes of the cutting fixing plate, and then place the entire cutting fixing plate into the cutting slot; (4) Nutrient management and temperature management: First, inject root-promoting nutrient solution into the cutting slot. After the cuttings have rooted, inject seedling-strengthening nutrient solution into the cutting slot. At the same time, spray the upper part of the cuttings with nutrient solution every once in a while. Adjust the temperature of the nutrient solution in the cutting slot. (5) Transplanting: When the roots of the cuttings in the planting trough in the cutting slot have grown to occupy 2 / 5-4 / 5 of the trough volume, transplant them; Step (4) Nutritional management includes injecting seedling nutrient solution after 80-95% of the cuttings have rooted, changing the seedling nutrient solution every 8-15 days, with the liquid surface 1-5cm away from the bottom of the cutting fixing plate; at the same time, spraying the upper part of the cuttings with nutrient solution every 7-15 days, with an appropriate amount of 150-300mL per square meter. Step (4) Temperature management: In winter, the temperature of the nutrient solution in the cutting slot is 3-8℃ higher than the air temperature, and in summer, the temperature of the nutrient solution in the cutting slot is 1-4℃ higher than the air temperature. Jasmine liquid cutting propagation device, including: A planting slot for holding nutrient solution, having an inlet and an outlet, wherein the bottom of the planting slot has multiple partitions arranged in a crisscross pattern to form multiple planting troughs; and The cutting fixing plate is located in the cutting slot and above the partition. The cutting fixing plate is composed of multiple planting plates arranged in a row. Each planting plate has a planting hole in the middle. The multiple planting plates are arranged one-to-one with the multiple planting slots. The cutting slot is made of translucent brown glass with the surrounding walls. The cutting fixing plate is made of biodegradable wood pulp cotton.

2. The method for liquid propagation of jasmine by cuttings according to claim 1, characterized in that, A heater is provided at the bottom of the cutting slot. The heater is connected to a temperature controller, which is connected to a temperature probe. The temperature probe is used to detect the temperature of the nutrient solution in the cutting slot.

3. The method for liquid propagation of jasmine by cuttings according to claim 1, characterized in that, The implantation plate has multiple incisions around the implantation holes.

4. The method for liquid propagation of jasmine by cuttings according to claim 1, characterized in that, Step (1) The cuttings should be 15-22cm long, with 2-4 opposite full leaves remaining on the upper part of the cuttings.

5. The method for liquid propagation of jasmine by cuttings according to claim 1, characterized in that, The disinfection in step (1) is as follows: the cuttings are immersed in the disinfectant solution for 1-10 minutes, and then rinsed with clean water for 1-5 minutes. The disinfectant solution is made from the following raw materials: potassium permanganate 1-1.5 g / L and carbendazim wettable powder 1.2-1.8 g / L, mixed at a volume ratio of 1:1.5-2.

6. The method for liquid propagation of jasmine by cuttings according to claim 1, characterized in that, The root-promoting nutrient solution described in step (2) is made from the following raw materials: 200-300 mg / L naphthaleneacetic acid solution; 150-250 mg / L indole-3-butyric acid solution; 600-1000 mg / L pure honey solution; 150-250 mg / L ascorbic acid solution and 200-350 mg / L salicylic acid solution; the volume ratio of the mixture is 1-3:1-3:1-3:1-3:1-2. And / or the seedling nutrient solution is made from the following raw materials: a 1200-1800 times diluted water-soluble compound fertilizer solution with a total nutrient content ≥55% and an effective N:P:K content ratio of 20-30:5-15:25-35; a magnesium sulfate solution of 300-500 mg / L; a naphthaleneacetic acid solution of 150-300 mg / L; a salicylic acid solution of 200-350 mg / L; and a vitamin B12 solution of 150-250 mg / L; the mixed volume ratio is 2-3:1-3:1-3:1-2:1-2; And / or the sprayed nutrient solution is made from the following raw materials: a 1500-2200 times diluted water-soluble compound fertilizer solution with a total nutrient content ≥50% and an effective N:P:K content ratio of 15-30:5-15:15-30; a 2000-3000 mg / L zinc sulfate solution; a 1000-1200 mg / L brassinolide soluble powder solution with an effective content of 0.01%; and a 500-1200 mg / L gibberellic acid soluble powder solution with an effective ingredient of 20%; the volume ratio of the mixture is 2-3:1-3:1-3:1-3.

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