A flower induction device for sweet potato breeding

Abstract

The invention discloses an inducing and promoting flowering device for sweet potato breeding, which belongs to the technical field of sweet potato breeding, and comprises: a breeding frame, an upper beam plate, a planting plate, a flat pipe, a track seat, a planting trough and a spraying unit; the planting plate is horizontally fixed in the middle of the breeding frame, a plurality of planting troughs are evenly distributed on the upper end surface of the planting plate, the flat pipe is horizontally laid along the length direction of the planting plate, and a water supply pipe is vertically connected to one side of the breeding frame; a guide rail is horizontally fixed above the breeding frame, the track seat is slidably connected to the guide rail, and a spraying unit is installed on one side of the track seat; a lighting unit is also arranged above the breeding frame; the invention can accurately manage sweet potato seedlings at different growth stages, and ensure that each sweet potato seedling can obtain a corresponding amount of flowering promoting liquid; and the compressed air spraying component adopted can spray flowering promoting liquid on the back of the leaves of the sweet potato seedlings, and ensure the complete coverage of the flowering promoting liquid spraying.

Description

Technical Field

[0001] The invention belongs to the technical field of sweet potato breeding, in particular to a flower induction and forcing device used for sweet potato breeding. Background Art

[0002] Sweet potato is an important food crop, widely planted all over the world. Through hybrid breeding, sweet potato varieties with excellent characteristics such as high yield, disease resistance, stress resistance, and high quality can be bred. However, sweet potato is a short-day plant with a long natural flowering cycle and uneven flowering, which affects seed production and reproduction efficiency. Induced flowering is a key technology that helps to improve the breeding efficiency of sweet potato.

[0003] At present, the cultivation of sweet potatoes in traditional technology mainly promotes the flowering of sweet potatoes by artificially spraying plant growth regulators such as gibberellins and flower-promoting liquids. The existing invention patent with publication number CN114568275B can automatically spray aqueous solutions on sweet potato seedlings without manual intervention, thus realizing the automated management of sweet potato seedlings. However, when spraying the aqueous solution, the water spray head used can only spray the surface of the leaves of the sweet potato seedlings. The back of the leaves of the sweet potato seedlings usually have more stomata, and the nutrient solution is more easily absorbed. The aqueous solution sprayed by the water spray head cannot effectively cover the back leaves, and the absorption efficiency of the aqueous solution is low. It is easy to evaporate locally due to environmental factors, which affects its flower-promoting effect. Moreover, it cannot provide suitable spraying operations for sweet potato seedlings at different growth stages. Therefore, it is necessary to provide an inducing flower-promoting device for sweet potato breeding to solve the problems raised in the above background technology. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an induction and flower-forcing device for sweet potato breeding, comprising: a breeding frame, an upper beam plate, a planting plate, a flat-laying pipe, a track seat, a planting trough and a spraying unit; the planting plate is horizontally fixed in the middle of the breeding frame, a plurality of planting troughs are evenly distributed on the upper end surface of the planting plate, the flat-laying pipe is horizontally laid along the length direction of the planting plate, a water supply pipe is vertically connected to one side of the breeding frame, one end of the water supply pipe is connected to the flat-laying pipe, and a spray head is arranged at the position of each planting trough on the flat-laying pipe;

[0005] A guide rail is fixed horizontally above the breeding frame, the track seat is slidably connected to the guide rail, and a spraying unit is installed on one side of the track seat;

[0006] A lighting unit is also provided above the breeding frame;

[0007] The spraying unit comprises:

[0008] A central rotating shaft is vertically rotatably connected to the track seat, a motor drive unit is installed on the track seat, and an output end of the motor drive unit is connected to the central rotating shaft;

[0009] A lower cantilever is fixed below the central rotating shaft, and the lower end of the lower cantilever is rotatably connected to a fixing frame;

[0010] A compressed air spraying component is fixed on one side of the fixing frame, and a liquid storage tank is arranged on the other side of the fixing frame, and a discharge port of the liquid storage tank is connected to the compressed air spraying component through an external pipe; the compressed air spraying component uses a corresponding compressed air spraying method to spray the flowering-promoting liquid on the surface and back of the leaves of the sweet potato seedlings during the initial planting period of the sweet potato seedlings, thereby stimulating the sweet potato seedlings to enter the flowering period in advance;

[0011] A telescopic cylinder is connected to the lower cantilever, and a telescopic end of the telescopic cylinder is connected to the fixing frame.

[0012] Preferably, the compressed air spraying assembly can be adjusted to a vertical or side-tilted state by the telescopic cylinder, and its maximum tilt angle is less than 45°.

[0013] Preferably, the compressed air spraying assembly comprises:

[0014] A cylindrical shell, inside which a fixed pipe is vertically rotatably connected, and the fixed pipe is connected and assembled with the cylindrical shell through an end cover seat;

[0015] A ring seat is coaxially rotatably connected in the cylinder shell, an inner shaft seat is fixed at the center of the ring seat, the inner shaft seat is coaxially fixed outside the fixed tube, and the inner shaft seat and the ring seat are sealed and assembled to form an annular guide cavity;

[0016] A lower ring frame, the center of which is fixed below the ring seat, and a plurality of spray plates are distributed circumferentially below the lower ring frame, and each of the spray plates is rotatably connected to the lower ring frame;

[0017] A central tube is coaxially fixed in the fixed tube, the upper end of the central tube extends outside the fixed tube, a flow guide tube is arranged above the cylinder shell, the flow guide tube is connected to the external tube, and the lower end of the flow guide tube is sealed and connected to the central tube;

[0018] An external driving part is installed at the upper end of the cylinder shell, and the external driving part is connected to the central tube through gear meshing, thereby driving the central tube to rotate in a circular manner;

[0019] The inner liquid tank is fixed in the lower ring frame, the lower end of the central tube is vertically connected to the inner liquid tank, a plurality of connecting pipes are arranged on the inner liquid tank, and liquid channels are distributed inside each of the spraying plates; the connecting pipes are respectively connected to the liquid channels in each of the spraying plates.

[0020] Preferably, the spray plate is provided with a plurality of spray holes evenly distributed at each of the liquid channels.

[0021] Preferably, the compressed air spraying assembly further comprises:

[0022] An adjusting ring, which is relatively rotatably arranged outside the lower ring frame;

[0023] A pin is vertically fixed to the upper end of each of the spraying plates;

[0024] A guide groove is circumferentially arranged on the adjusting ring, each of the pins is slidably connected in the guide groove, the ring wall of the adjusting ring is an arc-shaped structure, and each of the guide grooves is obliquely distributed along the adjusting ring, so that the corresponding spray plate below is driven by the pins to be retracted or extended inwardly or outwardly during the positive and negative deflection of the adjusting ring;

[0025] A pipe sleeve is fixed cocentrically to the upper end of the adjusting ring, and an oblique groove is provided on the side wall of the pipe sleeve;

[0026] The shaft ring is slidably connected in the annular guide cavity, and a fixing ring is fixed to the lower end of the shaft ring through a bracket; the fixing ring extends into and is connected in the pipe sleeve, and an axle pin is vertically fixed on the side wall of the fixing ring, and the axle pin is slidably connected to the inclined groove.

[0027] Preferably, the shaft ring drives the fixed ring to move synchronously when sliding downward, and the shaft pin on the fixed ring drives the pipe sleeve to deflect through the sliding action with the inclined groove, so that the adjustment ring below the pipe sleeve rotates synchronously;

[0028] A circulating chamber is fixed in the cylinder shell, and the circulating chamber is rotatably assembled with the ring seat. An inner channel is opened in the inner shaft seat, and the inner channel is communicated with the annular guide cavity. An annular opening is provided below the circulating chamber, and the annular opening is sealed and connected to the inner channel. An air pressure pipe is connected to the outside of the circulating chamber.

[0029] Preferably, an air bin is arranged above the inner part of the cylinder shell, an air supply pipe is connected to the outside of the air bin, a plurality of flow channels are distributed on the inner circumference of the fixed pipe, and air holes corresponding to the flow channels are opened on the side wall of the fixed pipe, and a conducting hole is opened on the inner wall of the air bin, and each of the air holes can be connected with the conducting hole correspondingly during the rotation of the fixed pipe;

[0030] The spray plates are all provided with air outlets, and the lower part of each of the air-converting channels is connected to the spray plates through an air pipe.

[0031] Preferably, the conducting holes are arranged as straight slot structures and are horizontally distributed along the wind bin, and the extending angle range of the conducting holes is not less than 40°.

[0032] Preferably, the conduction holes are distributed on the wind bin at a position away from the lower cantilever, so that when the compressed air spraying assembly is spraying on the back of the sweet potato seedling leaves, the telescopic cylinder drives the compressed air spraying assembly to be inclined, and the central tube rotates so that the air holes on the fixed tube are connected with the conduction holes in sequence. At this time, the exhaust ports on each spraying plate blow air toward the back of the sweet potato seedling leaves when passing under the sweet potato seedling leaves, so as to provide upward wind pressure to the sweet potato seedling leaves.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The sweet potato seedlings in the present invention can be planted in corresponding planting troughs, and the spraying unit arranged above the breeding rack can provide corresponding spraying operations for each sweet potato seedling, so as to accurately manage the sweet potato seedlings at different growth stages and ensure that each sweet potato seedling can obtain a corresponding amount of flowering-promoting liquid; wherein the compressed air spraying component used in the spraying unit can spray the flowering-promoting liquid on the surface of the sweet potato seedling leaves and on the back of the sweet potato seedling leaves, thereby ensuring the complete coverage of the flowering-promoting liquid spraying and improving the absorption effect of the flowering-promoting liquid for the sweet potato seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a structural schematic diagram of the spraying unit in the present invention;

[0037] Figure 3 It is a structural schematic diagram of the medium-pressure air spraying assembly of the present invention;

[0038] Figure 4 It is a partial cross-sectional view of the medium-pressure air spraying assembly of the present invention;

[0039] Figure 5 It is a structural schematic diagram of the lower ring frame and the spraying plate in the present invention;

[0040] Figure 6 This is a schematic diagram of the structure of the stroke chamber of the present invention;

[0041] Figure 7 It is a cross-sectional view of the lower ring frame and the spraying plate in the present invention;

[0042] Figure 8 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0043] Fig. 9 It is a structural schematic diagram of the spraying plate in the present invention;

[0044] In the figure: 1, breeding rack; 11, planting plate; 13, flat pipe; 14, track seat; 15, planting trough; 16, water supply pipe; 17, guide rail; 2, spraying unit; 21, central shaft; 22, lower cantilever; 23, liquid storage tank; 24, external pipe; 3, compressed air spraying assembly; 31, cylinder shell; 32, fixed pipe; 33, ring seat; 34, inner shaft seat; 35, central pipe; 3 6. Guide pipe; 37. Circulation chamber; 38. Inner channel; 4. Lower ring frame; 41. Inner liquid chamber; 42. Connecting pipe; 43. Adjusting ring; 44. Guide groove; 45. Pipe sleeve; 46. Shaft ring; 47. Fixed ring; 48. Wind rotation channel; 5. Spray plate; 51. Pin; 52. Exhaust port; 53. Air pipe; 54. Spray hole; 6. Wind chamber; 61. Air supply pipe; 62. Conducting hole. DETAILED DESCRIPTION

[0045] See also Figure 1-Figure 9 In an embodiment of the present invention, an induction and flower-forcing device for sweet potato breeding includes: a breeding frame 1, an upper beam plate, a planting plate 11, a flat pipe 13, a track seat 14, a planting trough 15 and a spraying unit 2; the planting plate 11 is horizontally fixed in the middle of the breeding frame 1, and a plurality of planting troughs 15 are evenly distributed on the upper end surface of the planting plate 11; the flat pipe 13 is horizontally laid along the length direction of the planting plate 11; a water supply pipe 16 is vertically connected to one side of the breeding frame 1, and one end of the water supply pipe 16 is connected to the flat pipe 13; a spray head is provided at the position of each planting trough 15 on the flat pipe 13; the spray head can provide irrigation water to the sweet potato seedlings in each planting trough 15;

[0046] A guide rail 17 is fixed horizontally above the breeding frame 1, and the track seat 14 is slidably connected to the guide rail 17. A spraying unit 2 is installed on one side of the track seat 14; so that the spraying unit 2 can be slidably adjusted along the length direction of the breeding frame 1 through the track seat 14, so as to spray a single sweet potato seedling to achieve refined management;

[0047] A lighting unit is also provided above the breeding frame 1;

[0048] The spraying unit 2 comprises:

[0049] A central rotating shaft 21 is vertically rotatably connected to the rail seat 14. A motor drive unit is installed on the rail seat 14, and an output end of the motor drive unit is connected to the central rotating shaft 21;

[0050] The lower cantilever 22 is fixed below the central rotating shaft 21, and the lower end of the lower cantilever 22 is rotatably connected to a fixing frame;

[0051] The compressed air spraying component 3 is fixed on one side of the fixing frame, and a liquid storage tank 23 is arranged on the other side of the fixing frame, and the discharge port of the liquid storage tank 23 is connected to the compressed air spraying component 3 through an external pipe 24; during the initial planting period of sweet potato seedlings, the compressed air spraying component 3 uses a corresponding compressed air spraying method to spray the flowering-promoting liquid on the surface and back of the leaves of each sweet potato seedling, thereby stimulating the sweet potato seedlings to enter the flowering period in advance; wherein, the compressed air spraying component 3 can realize uniform spraying of the flowering-promoting liquid through the continuous rotation of the central rotating shaft 21 during the spraying operation, thereby improving the overall coverage effect of the flowering-promoting liquid on the sweet potato seedlings;

[0052] The telescopic cylinder is connected to the lower cantilever 22, and the telescopic end of the telescopic cylinder is connected to the fixing frame.

[0053] In this embodiment, the compressed air spraying component 3 can be adjusted to a vertical or side-inclined state by the telescopic cylinder, and its maximum inclination angle is less than 45°. Therefore, the spraying operation of the compressed air spraying component 3 can be divided into two stages. In the first stage, the compressed air spraying component 3 is vertically arranged. At this time, the compressed air spraying component 3 can spray the flowering-promoting liquid from directly above the sweet potato seedlings, and the coverage is relatively uniform; while in the second stage, the compressed air spraying component 3 is inclined. At this time, the compressed air spraying component 3 can spray the flowering-promoting liquid on the back of each leaf of the sweet potato seedlings, thereby improving the absorption effect of the sweet potato seedlings on the flowering-promoting liquid.

[0054] As a preferred embodiment, the compressed air spraying assembly 3 includes:

[0055] The cylinder shell 31 has a fixed pipe 32 connected therein for vertical rotation. The fixed pipe 32 is connected and assembled with the cylinder shell 31 through an end cover seat.

[0056] The ring seat 33 is coaxially rotatably connected in the cylinder shell 31, and an inner shaft seat 34 is fixed at the center of the ring seat 33. The inner shaft seat 34 is coaxially fixed outside the fixed tube 32, and the inner shaft seat 34 and the ring seat 33 are sealed and assembled to form an annular guide cavity;

[0057] A lower ring frame 4, the center of which is fixed below the ring seat 33, and a plurality of spray plates 5 are distributed circumferentially below the lower ring frame 4, and each of the spray plates 5 is rotatably connected to the lower ring frame 4;

[0058] A central tube 35 is coaxially fixed in the fixed tube 32, and the upper end of the central tube 35 extends outside the fixed tube 32. A flow guide tube 36 is provided above the cylinder shell 31, and the flow guide tube 36 is connected to the external tube 24, and the lower end of the flow guide tube 36 is sealed and connected to the central tube 35;

[0059] The external driving part is installed at the upper end of the cylinder shell 31, and the external driving part is connected and transmitted with the central tube 35 through the meshing action of gears, so as to drive the central tube 35 to rotate in a circle; therefore, during the spraying operation, the external driving part drives the central tube 35 to rotate, so that the ring seat 33 on the central tube 35 rotates synchronously, and at the same time, the lower ring frame 4 rotates with the ring seat 33, and each spraying plate 5 sprays the flower-promoting liquid evenly under the action of rotation;

[0060] The inner liquid tank 41 is fixed in the lower ring frame 4, and the lower end of the central tube 35 is vertically connected to the inner liquid tank 41. A plurality of connecting pipes 42 are arranged on the inner liquid tank 41, and liquid channels are distributed inside each of the spray plates 5; the connecting pipes 42 are respectively connected to the liquid channels in each of the spray plates 5.

[0061] In this embodiment, a plurality of spray holes 54 are evenly distributed on the spray plate 5 at each of the liquid channels.

[0062] In this embodiment, the compressed air spraying component 3 also includes:

[0063] An adjusting ring 43 is relatively rotatably arranged outside the lower ring frame 4;

[0064] A pin 51 is vertically fixed to the upper end of each of the spraying plates 5;

[0065] The guide groove 44 is circumferentially provided on the adjusting ring 43, and each of the pins 51 is slidably connected in the guide groove 44. The ring wall of the adjusting ring 43 is an arc-shaped structure, and each of the guide grooves 44 is obliquely distributed along the adjusting ring 43, so that the pins 51 drive the corresponding spray plate 5 below to be retracted or extended during the positive and negative deflection of the adjusting ring 43;

[0066] A pipe sleeve 45 is fixed coaxially to the upper end of the adjusting ring 43, and an oblique groove is provided on the side wall of the pipe sleeve 45;

[0067] The shaft ring 46 is slidably connected in the annular guide cavity, and a fixing ring 47 is fixed to the lower end of the shaft ring 46 through a bracket; the fixing ring 47 extends into and is connected to the pipe sleeve 45, and an axle pin is vertically fixed on the side wall of the fixing ring 47, and the axle pin is slidably connected to the inclined groove.

[0068] In this embodiment, the shaft ring 46 drives the fixed ring 47 to move synchronously when sliding downward. At this time, the shaft pin on the fixed ring 47 drives the pipe sleeve 45 to deflect through the sliding action with the inclined groove, so that the adjustment ring 43 below the pipe sleeve 45 rotates synchronously;

[0069] A circulation chamber 37 is fixed in the cylinder shell 31, and the circulation chamber 37 is rotatably assembled with the ring seat 33. An inner channel 38 is opened in the inner shaft seat 34, and the inner channel 38 is communicated with the annular guide cavity, and an annular opening is provided below the circulation chamber 37, and the annular opening is sealed and connected with the inner channel 38; an air pressure pipe is connected to the outside of the circulation chamber 37; that is, by adjusting the air pressure in the annular guide cavity, the up and down sliding of the shaft ring 46 is realized, and it can push the fixed ring 47 to make corresponding axial displacement during sliding, so that the pipe sleeve 45 is directional deflected, and then the outward expansion adjustment of each spray plate 5 is realized, so as to effectively control the spraying range of the flower-promoting liquid.

[0070] As a preferred embodiment, an air bin 6 is provided on the upper part of the cylinder shell 31, and an air supply pipe 61 is connected to the outside of the air bin 6. A plurality of flow channels are distributed on the inner circumference of the fixed pipe 32, and air holes corresponding to the flow channels are provided on the side wall of the fixed pipe 32. A conducting hole 62 is provided on the inner wall of the air bin 6, and each of the air holes can be connected to the conducting hole 62 correspondingly during the rotation of the fixed pipe 32.

[0071] A plurality of air-rotating channels 48 are fixed above the inner liquid tank 41 in the lower ring frame 4, and the flow channels in the fixed pipe 32 are sealed and connected to the air-rotating channels 48 respectively;

[0072] The spray plate 5 is provided with an exhaust port 52 , and the lower part of each of the air-converting channels 48 is connected to the spray plate 5 via an air pipe 53 .

[0073] In this embodiment, the conducting hole 62 is set to a straight slot structure and is horizontally distributed along the wind bin 6. The extension angle range of the conducting hole 62 is not less than 40°, which extends the effective docking time between each wind hole and the conducting hole 62, and ensures that each spray plate 5 can provide blowing operation for sweet potato seedlings through the exhaust port 52 during the docking time.

[0074] In this embodiment, the conducting holes 62 are distributed on the wind bin 6 at a position away from the lower cantilever 22, so that when the compressed air spraying assembly 3 is spraying on the back of the sweet potato seedling leaves, the telescopic cylinder drives the compressed air spraying assembly 3 to be inclined, and the central tube 35 rotates so that the air holes on the fixed tube 32 are connected with the conducting holes 62 in sequence. At this time, the exhaust ports 52 on each spraying plate 5 blow air toward the back of the sweet potato seedling leaves when passing under the sweet potato seedling leaves, so as to provide upward wind pressure to the sweet potato seedling leaves. That is to say, in the second stage of spraying operation, each spraying plate 5 in the compressed air spraying assembly 3 can provide upward blowing operation when passing under the sweet potato seedling leaves. On the one hand, it can help the flower-promoting liquid to better adhere to the back of the leaves, and the wind flow can blow the atomized liquid particles to the back of the leaves to ensure comprehensive coverage of the spraying. On the other hand, it can help the moisture on the leaf surface to evaporate quickly, reduce the environment for the breeding of pathogens, and at the same time reduce pests and reduce the probability of occurrence of diseases and insect pests, thereby realizing sweet potato seedling induction and flower-promoting.

[0075] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for inducing and forcing flowering of sweet potato, comprising: A breeding frame (1), an upper beam plate, a planting plate (11), a flat pipe (13), a track seat (14), a planting trough (15) and a spraying unit (2); characterized in that: A guide rail (17) is fixed horizontally above the breeding frame (1), the track seat (14) is slidably connected to the guide rail (17), and a spraying unit (2) is installed on one side of the track seat (14); The spraying unit (2) comprises: A central rotating shaft (21) is vertically rotatably connected to the track seat (14); The lower cantilever (22) is fixed below the central rotating shaft (21), and the lower end of the lower cantilever (22) is rotatably connected to a fixing frame; A compressed air spraying assembly (3) is fixed on one side of the fixing frame; The compressed air spraying assembly (3) comprises: A cylindrical shell (31) is provided with a fixed tube (32) in a vertically rotatable manner, wherein the fixed tube (32) is connected and assembled to the cylindrical shell (31) via an end cover seat; A ring seat (33) is coaxially rotatably connected in the cylindrical shell (31), an inner shaft seat (34) is fixed at the center of the ring seat (33), the inner shaft seat (34) is coaxially fixed outside the fixed tube (32), and the inner shaft seat (34) and the ring seat (33) are sealed and assembled to form an annular guide cavity; A lower ring frame (4) is centrally fixed below the ring seat (33), and a plurality of spray plates (5) are distributed circumferentially below the lower ring frame (4), and each spray plate (5) is rotatably connected to the lower ring frame (4); A central tube (35) is coaxially fixed in the fixed tube (32), the upper end of the central tube (35) extends outside the fixed tube (32), a flow guide tube (36) is provided above the cylinder shell (31), the flow guide tube (36) is connected to the external tube (24), and the lower end of the flow guide tube (36) is sealed and communicated with the central tube (35); An external driving part is mounted on the upper end of the cylindrical shell (31), and the external driving part is connected to the central tube (35) through gear meshing, thereby driving the central tube (35) to rotate in a circular motion; An inner liquid tank (41) is fixed in the lower ring frame (4), the lower end of the central tube (35) is vertically connected to the inner liquid tank (41), a plurality of connecting tubes (42) are arranged on the inner liquid tank (41), and liquid channels are distributed inside each spray plate (5); The connecting pipes (42) are respectively connected to the liquid channels in the spray plates (5); An air bin (6) is arranged above the interior of the cylinder shell (31), an air supply pipe (61) is connected to the outside of the air bin (6), a plurality of flow channels are distributed on the inner circumference of the fixed pipe (32), and air holes corresponding to the flow channels are opened on the side wall of the fixed pipe (32), and a conducting hole (62) is opened on the inner wall of the air bin (6), and each of the air holes can be connected to the conducting hole (62) in correspondence with the rotating fixed pipe (32); A plurality of air rotating channels (48) are fixedly provided above the inner liquid bin (41) in the lower ring frame (4), and the flow channels in the fixed pipe (32) are respectively sealed and connected to the air rotating channels (48); an exhaust port (52) is provided in each of the spray plates (5), and the bottom of each of the air rotating channels (48) is connected to the spray plate (5) via an air pipe (53).

2. The induction and flower-forcing device for sweet potato breeding according to claim 1, characterized in that: A planting plate (11) is fixed horizontally in the middle of the breeding frame (1), and a plurality of planting grooves (15) are evenly distributed on the upper end surface of the planting plate (11); the flat pipe (13) is horizontally laid along the length direction of the planting plate (11); a water supply pipe (16) is vertically connected to one side of the breeding frame (1), and one end of the water supply pipe (16) is connected to the flat pipe (13); and a spray head is provided on the flat pipe (13) at the position of each planting groove (15); A lighting unit is also provided above the breeding frame (1); A liquid storage tank (23) is provided on the other side of the fixing frame, and a liquid discharge port of the liquid storage tank (23) is connected to the compressed air spraying assembly (3) via an external pipe (24); a motor drive unit is installed on the track seat (14), and an output end of the motor drive unit is connected to the central rotating shaft (21); The compressed air spraying component (3) uses a corresponding compressed air spraying method to spray the flowering-promoting liquid on the surface and back of the leaves of each sweet potato seedling during the initial planting period of the sweet potato seedlings, thereby stimulating the sweet potato seedlings to enter the flowering period in advance; A telescopic cylinder connected to the lower cantilever (22), the telescopic end of the telescopic cylinder being connected to the fixing frame; The compressed air spraying assembly (3) can be adjusted to be in a vertical or side-inclined state by the telescopic cylinder, and its maximum inclination angle is less than 45°.

3. The induction and flower-forcing device for sweet potato breeding according to claim 1, characterized in that: The spray plate (5) is provided with a plurality of spray holes (54) evenly distributed at each of the liquid channels.

4. The induction and flower-forcing device for sweet potato breeding according to claim 1, characterized in that: The compressed air spraying assembly (3) further comprises: An adjustment ring (43) is arranged outside the lower ring frame (4) in a relatively deflectable manner; A pin (51) is vertically fixed to the upper end of each of the spraying plates (5); A guide groove (44) is circumferentially provided on the adjusting ring (43), each of the pins (51) is slidably connected in the guide groove (44), the ring wall of the adjusting ring (43) is an arc-shaped structure, and each of the guide grooves (44) is obliquely distributed along the adjusting ring (43), so that when the adjusting ring (43) is deflected in the forward and reverse directions, the pins (51) drive the corresponding spray plate (5) below to be retracted or extended; A pipe sleeve (45) is fixed coaxially to the upper end of the adjusting ring (43), and an oblique groove is formed on the side wall of the pipe sleeve (45); A shaft ring (46) is slidably connected in the annular guide cavity, and a fixing ring (47) is fixed to the lower end of the shaft ring (46) via a bracket; The fixing ring (47) extends into and is connected to the pipe sleeve (45), and an axle pin is vertically fixed on the side wall of the fixing ring (47), and the axle pin is slidably connected to the inclined groove.

5. The induction and flower-forcing device for sweet potato breeding according to claim 4, characterized in that: The shaft ring (46) drives the fixing ring (47) to move synchronously when sliding downwards. At this time, the shaft pin on the fixing ring (47) drives the pipe sleeve (45) to deflect through the sliding action with the inclined groove, thereby causing the adjustment ring (43) below the pipe sleeve (45) to rotate synchronously; A circulation chamber (37) is fixed inside the cylindrical shell (31), and the circulation chamber (37) is rotatably assembled with the ring seat (33). An inner channel (38) is provided in the inner shaft seat (34), and the inner channel (38) is communicated with the annular guide cavity. An annular opening is provided below the circulation chamber (37), and the annular opening is sealed and connected to the inner channel (38). An air pressure pipe is connected to the outside of the circulation chamber (37).

6. The induction and flower-forcing device for sweet potato breeding according to claim 1, characterized in that: The conducting holes (62) are configured as straight slot structures and are horizontally distributed along the wind bin (6); the extending angle range of the conducting holes (62) is not less than 40°.

7. The induction and flower-forcing device for sweet potato breeding according to claim 1, characterized in that: The conducting holes (62) are distributed at positions on the wind bin (6) away from the lower cantilever (22), so that when the compressed air spraying assembly (3) is spraying on the back of the sweet potato seedling leaves, the telescopic cylinder drives the compressed air spraying assembly (3) to be arranged in an inclined manner, and the central tube (35) rotates so that the air holes on the fixed tube (32) and the conducting holes (62) are connected in sequence. At this time, the exhaust ports (52) on the spraying plates (5) pass under the sweet potato seedling leaves and blow air toward the back of the sweet potato seedling leaves, so as to provide upward wind pressure on the sweet potato seedling leaves.

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