Cucumber breeding device and method for resistance to powdery mildew

Abstract

The invention discloses a cucumber breeding device and method for resistance to powdery mildew, belonging to the technical field of breeding equipment, comprising a support seat and a seedling raising component, wherein the seedling raising component is arranged on a water absorption baffle and is used for cultivating cucumber seedlings. A seedling raising box containing cucumber seeds is placed on a connecting seat on the water absorption baffle. According to the law of light movement, the side with greater light intensity causes the air in the solar heat collecting tube to expand due to heat, and the expanded air pushes a second push rod to cause a slider to slide in the mounting seat toward the side with stronger sunlight. The sliding slider drives a meshing notched gear to rotate through a rack at the end thereof, and the rotating notched gear drives the seedling raising box to flip with an extension shaft as the axis, thereby increasing the contact time between the seeds and sunlight and improving the photosynthetic efficiency of the seeds.

Description

Technical Field

[0001] The present invention relates to the technical field of breeding equipment, and in particular to a device and method for breeding cucumbers resistant to powdery mildew. Background Art

[0002] Cucumber powdery mildew, commonly known as white hair disease, is a disease of cucumbers caused by Erysiphe cucumeris and Erysiphe cucumeris. It primarily affects leaves, but also petioles and stems. It is a common disease of cucumbers grown in greenhouses, typically developing severely in the middle and late stages of growth, causing leaf dryness and even premature vine removal.

[0003] The occurrence of cucumber powdery mildew is related to temperature and humidity, and is more likely to occur at temperatures between 15 and 30 degrees Celsius. As humidity increases, the disease spreads faster and becomes more severe, especially when the weather clears after rain, when field humidity is high, or when high temperatures and drought alternate with high temperatures and high humidity, leading to a widespread disease outbreak.

[0004] Cucumber powdery mildew is primarily controlled through agricultural and chemical methods. However, the frequent use of chemical agents can not only cause adverse effects on the seedlings but also lead to drug resistance in the pathogen. Studies have shown that high temperatures and droughts can inhibit the pathogen, resulting in milder disease. Therefore, increasing the seedlings' exposure to sunlight and cultivating new disease-resistant varieties are effective control measures. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the frequent use of chemical agents not only has side effects on seedlings but also causes pathogens to develop drug resistance. Therefore, increasing the contact of seedlings with sunlight and cultivating new disease-resistant varieties are effective control measures. A device and method for breeding cucumbers resistant to powdery mildew are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A cucumber breeding device for resistance to powdery mildew comprises a support base, a connecting shaft fixedly mounted on the support base, a windmill frame rotatably mounted on the connecting shaft, a water absorption baffle rotatably mounted on the windmill frame, a dividing plate rotatably mounted on one end of the connecting shaft passing through the windmill frame, the dividing plate being fixedly connected to the windmill frame, a motor being assembled on the support base, a dial adapted to the dividing plate being fixedly mounted on the output end of the motor, and further comprising a seedling raising component, the seedling raising component being arranged on the water absorption baffle, and the seedling raising component being used for cultivating cucumber seedlings.

[0008] In order to absorb excess moisture in the seedling box, preferably, the seedling assembly includes: a seedling box, extension shafts are fixedly installed on both sides of the seedling box, and a notched gear is fixedly installed on the extension shaft; a connecting seat fixedly installed at the four corners of the water absorption baffle, and an arc-shaped notch is provided on the connecting seat that is compatible with the extension shaft.

[0009] In order to enable the seedling box to flip along with the movement of the sun and improve the photosynthesis of the seedlings, it further includes: a mounting seat fixedly mounted on both sides of the water absorption baffle, a slider is slidably mounted in the mounting seat, and racks that can be meshed with the notched gear are fixedly mounted on both sides of the slider; a solar heat collecting tube is fixedly mounted on the mounting seat, a piston is assembled in the solar heat collecting tube, and a second push rod is fixedly mounted between the piston and the slider.

[0010] In order to irrigate the seedlings, preferably, it also includes: a spray assembly, which is arranged on a support seat, and the spray assembly is used to irrigate the cucumber seedlings; the spray assembly includes: two first support columns fixedly mounted on the support seat, a connecting shaft is rotatably connected between the two first support columns, one end of the connecting shaft passes through the first support column and is fixedly mounted with a first swing arm, and a second swing arm is rotatably connected between the first swing arm and the dial; two second support columns fixedly mounted on the support seat, a driving arm is rotatably connected between the two second support columns, the driving arm is rotatably connected to the first swing arm, a spray plate is fixedly mounted between the driving arms on both sides, and the working surface of the spray plate faces the water absorption baffle.

[0011] In order to replenish the nutrient solution into the spray plate in time, the driving arm is further provided with a mounting groove, an air bag is fixedly installed in the mounting groove, and a first air pipe is fixedly connected between the air bag and the spray plate.

[0012] In order to stir the nutrient solution in the water tank, further, a water tank is fixedly installed on the support seat, and the water tank is filled with nutrient solution; an air inlet and a sealing cylinder adapted to the air inlet are provided at the bottom of the water tank, a second air pipe is fixedly connected between the sealing cylinder and the airbag, a wind wheel is rotatably installed in the sealing cylinder, a stirring rod is provided in the water tank, and the stirring rod is coaxially connected to the wind wheel.

[0013] In order to increase the contact area between the seedling box and the spray plate, further, a first push rod is fixedly installed on the connecting shaft, and a roller is rotatably installed on one end of the first push rod close to the water absorption baffle.

[0014] In order to provide supplementary light to the seedlings at night, preferably, a supplementary light board is fixedly mounted on the support seat, and the supplementary light board is located 25-30 cm above the cucumber seedlings.

[0015] In order to induce the production of resistance substances in the cucumber seedlings through supplementary light, a supplementary light is further installed on the supplementary light board, and the supplementary light consists of a red light with a wavelength of 660nm and a blue light with a wavelength of 470nm, and the ratio of the red light to the blue light is 3:1.

[0016] A method for breeding cucumbers resistant to powdery mildew, comprising the following steps:

[0017] Step 1: Place the seeds in a tray container to ripen;

[0018] Step 2: Increase the duration of light exposure for seeds to improve their photosynthesis;

[0019] Step 3: When the seeds have two leaves and one heart, inoculate with powdery mildew pathogen;

[0020] Step 4: Provide light supplement to the seedlings to induce the production of resistance substances in the cucumber seedlings.

[0021] Compared with the prior art, the present invention provides a device and method for breeding cucumbers resistant to powdery mildew, which has the following beneficial effects:

[0022] 1. The cucumber breeding device for resistance to powdery mildew places a seedling box containing cucumber seeds on a connecting seat on a water absorption baffle. According to the law of light movement, the side with greater light intensity causes the air in the solar heat collecting tube to expand due to heat, and the expanded air pushes the second push rod to make the slider slide in the mounting seat toward the side with stronger sunlight. The sliding slider drives the meshing notched gear to rotate through the rack at the end, and the rotating notched gear drives the seedling box to flip around the extension axis as the axis, thereby increasing the contact time between the seeds and sunlight and improving the photosynthetic efficiency of the seeds. The output end of the motor intermittently drives the indexing plate to rotate one degree through the dial, and the indexing plate transmits the rotating force to the windmill frame, so that each seedling box on the windmill frame can be fully exposed to sunlight, and there is no problem of the lower seedling box being blocked by the upper seedling box.

[0023] 2. The cucumber breeding device for resisting powdery mildew according to claim 1, wherein during the intermittent rotation of the indexing plate, the indexing plate pulls the first swing arm to swing on the first support column through the second swinging arm, and the swinging first swing arm is away from one end of the indexing plate, driving the rotatably connected driving arm to swing on the second support column, and a restraining block adapted to the mounting slot is rotatably installed at the axis center of the second support column, and during the swinging of the driving arm, the restraining block continuously squeezes the air bag in the mounting slot. When the working surface of the spraying plate faces the water tank, the air bag is gradually inflated and a negative pressure is formed inside the spraying plate, so that the nutrient solution in the water tank is sucked into the spraying plate. When the working surface of the spraying plate faces the seedling box, the restraining block squeezes the air bag to spray the nutrient solution in the spraying plate onto the cucumber seedlings, so as to irrigate the cucumber seedlings, and when the seedling box rotates to one side of the spraying plate, the bottom surface of the seedling box is pushed by the first push rod and flipped outward at a partial angle, so that the contact area between the seedling box and the spraying plate is increased, thereby improving the uniformity of the cucumber seedlings when being irrigated.

[0024] 3. The cucumber breeding device for resistance to powdery mildew, when there is no sunlight at night, turns on the supplementary light towards the seedling box. The red and blue mixed light source can induce the cucumber seedlings to produce resistance substances, increase the total phenol, flavonoid and lignin content, effectively resist the invasion of powdery mildew pathogens, and achieve the purpose of disease resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a cucumber breeding device for resistance to powdery mildew proposed by the present invention;

[0026] Figure 2 This is a schematic structural diagram from a second perspective of a cucumber breeding device for resistance to powdery mildew proposed by the present invention;

[0027] Figure 3 This is a schematic structural diagram of a seedling raising component of a cucumber breeding device for resistance to powdery mildew proposed in the present invention;

[0028] Figure 4 A cucumber breeding device for resistance to powdery mildew proposed by the present invention Figure 1 A schematic diagram of the structure at center A;

[0029] Figure 5 A cucumber breeding device for resistance to powdery mildew proposed by the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 6 This is a schematic diagram of the internal structure of a water tank of a cucumber breeding device for resistance to powdery mildew proposed by the present invention;

[0031] Figure 7 This is a schematic diagram of the internal structure of a spray plate of a cucumber breeding device for resistance to powdery mildew proposed by the present invention.

[0032] In the figure: 1. Support base; 2. Connecting shaft; 201. First push rod; 202. Roller; 3. Windmill frame; 4. Water absorption baffle; 401. Connecting base; 402. Arc notch; 403. Mounting base; 404. Slider; 405. Rack; 406. Solar collector tube; 407. Second push rod; 5. Indexing plate; 6. Motor; 7. Dial; 8. Seedling box; 801. Extension shaft; 802. Notch gear; 9. First support column; 10. Connecting shaft; 11. First swing arm; 12. Second swing arm; 13. Second support column; 1301. Constraint block; 14. Drive arm; 1401. Mounting slot; 15. Spray plate; 16. Airbag; 1601. First air pipe; 17. Water tank; 1701. Air inlet; 1702. Sealing cylinder; 1703. Wind wheel; 1704. Second air pipe; 1705. Stirring rod; 18. Fill light board. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Example 1:

[0036] Reference Figure 1-Figure 7 A cucumber breeding device for resistance to powdery mildew comprises a support base 1, a connecting shaft 2 is fixedly mounted on the support base 1, a windmill frame 3 is rotatably mounted on the connecting shaft 2, a water absorption baffle 4 is rotatably mounted on the windmill frame 3, the connecting shaft 2 passes through one end of the windmill frame 3 and a dividing plate 5 is rotatably mounted, the dividing plate 5 is fixedly connected to the windmill frame 3, a motor 6 is assembled on the support base 1, a dial 7 adapted to the dividing plate 5 is fixedly mounted on the output end of the motor 6, and also includes a seedling raising component, which is arranged on the water absorption baffle 4 and is used to cultivate cucumber seedlings.

[0037] The windmill frame 3 includes two polygonal frames rotatably mounted on the connecting shaft 2, with reinforcing ribs fixedly connected between the two polygonal frames. The water absorption baffles 4 are rotatably mounted between the two polygonal frames, and the number of the water absorption baffles 4 is consistent with the number of sides of the polygonal frames.

[0038] See Figure 1-Figure 3 The seedling raising component includes: a seedling raising box 8, on both sides of which are fixedly installed extension shafts 801, on which a notched gear 802 is fixedly installed; a connecting seat 401 fixedly installed at the four corners of the water absorption baffle 4, and an arc-shaped notch 402 adapted to the extension shaft 801 is opened on the connecting seat 401.

[0039] See Figure 5 , and also includes: a mounting base 403 fixedly mounted on both sides of the water absorption baffle 4, a slider 404 is slidably mounted in the mounting base 403, and racks 405 that can be meshed with the notched gear 802 are fixedly mounted on both sides of the slider 404; a solar heat collecting tube 406 is fixedly mounted on the mounting base 403, a piston is assembled in the solar heat collecting tube 406, and a second push rod 407 is fixedly mounted between the piston and the slider 404.

[0040] Through the arrangement of the above structure, the seedling box 8 containing cucumber seeds is first placed on the connecting seat 401 on the water absorption baffle 4. According to the law of light movement, the side with greater light intensity will cause the air in the solar heat collecting tube 406 to expand due to heat. The expanded air pushes the second push rod 407 to make the slider 404 slide in the mounting seat 403 toward the side with stronger sunlight. The sliding slider 404 drives the meshing notched gear 802 to rotate through the rack 405 at the end. The rotating notched gear 802 drives the seedling box 8 to flip with the extension shaft 801 as the axis, thereby increasing the contact time between the seeds and sunlight and improving the photosynthetic efficiency of the seeds.

[0041] Solar heat collecting tubes 406 are installed on both sides of the mounting base 403, and the second push rods 407 in the solar heat collecting tubes 406 on both sides push in opposite directions, so that the seedling box 8 can flip left and right on the water absorption baffle 4 according to the movement of sunlight, thereby maximizing sunlight exposure.

[0042] And during the operation of the motor 6, the output end of the motor 6 intermittently drives the indexing plate 5 to rotate one degree through the dial 7, and the indexing plate 5 transmits the rotational force to the windmill frame 3, so that each seedling box 8 on the windmill frame 3 can be fully exposed to the sunlight, and there is no problem of the lower seedling box 8 being blocked by the upper seedling box 8.

[0043] It should be noted that the bottom of the seedling box 8 is a crisscross reinforcement rib, on which a gasket with strong air permeability is laid, and cucumber seeds soaked in hot water for more than 6 hours are planted on the gasket, thereby improving the germination rate of the seeds.

[0044] Example 2:

[0045] See Figure 1-Figure 7 , which is basically the same as Example 1. On the basis of Example 1, the entire technical solution is further optimized.

[0046] See Figure 1-Figure 2 and Figure 7 , a specific implementation plan for irrigating cucumber seedlings is added, and also includes: a spray assembly, the spray assembly is arranged on the support base 1, and the spray assembly is used to irrigate the cucumber seedlings; the spray assembly includes: two first support columns 9 fixedly mounted on the support base 1, a connecting shaft 10 is rotatably connected between the two first support columns 9, one end of the connecting shaft 10 passes through the first support column 9 and is fixedly mounted with a first swing arm 11, and a second swing arm 12 is rotatably connected between the first swing arm 11 and the dial 7; two second support columns 13 fixedly mounted on the support base 1, a driving arm 14 is rotatably connected between the two second support columns 13, the driving arm 14 is rotatably connected to the first swing arm 11, and a spray plate 15 is fixedly mounted between the driving arms 14 on both sides, and the working surface of the spray plate 15 faces the water absorption baffle 4.

[0047] See Figure 1 The driving arm 14 is provided with a mounting groove 1401 , in which the airbag 16 is fixedly mounted, and a first air pipe 1601 is fixedly connected between the airbag 16 and the spray plate 15 .

[0048] See Figure 1-Figure 2 and Figure 6 A water tank 17 is fixedly mounted on the support base 1 and is filled with nutrient solution. An air inlet 1701 and a sealing cylinder 1702 adapted to the air inlet 1701 are provided at the bottom of the water tank 17. A second air pipe 1704 is fixedly connected between the sealing cylinder 1702 and the airbag 16. A wind wheel 1703 is rotatably mounted in the sealing cylinder 1702. A stirring rod 1705 is provided in the water tank 17, and the stirring rod 1705 is coaxially connected to the wind wheel 1703.

[0049] See Figure 4 A first push rod 201 is fixedly mounted on the connecting shaft 2 , and a roller 202 is rotatably mounted on one end of the first push rod 201 close to the water absorption baffle 4 .

[0050] Through the arrangement of the above structure, during the intermittent rotation of the indexing plate 5, the indexing plate 5 pulls the first swing arm 11 to swing on the first support column 9 through the second swing arm 12, and the end of the swinging first swing arm 11 away from the indexing plate 5 drives the rotationally connected driving arm 14 to swing on the second support column 13, and a restraining block 1301 adapted to the mounting groove 1401 is rotatably installed at the axis of the second support column 13, and during the swinging of the driving arm 14, the restraining block 1301 continuously squeezes the air bag 16 in the mounting groove 1401. When the working surface of the spray plate 15 When facing the water tank 17, the air bag 16 is gradually inflated and forms a negative pressure inside the spray plate 15, sucking the nutrient solution in the water tank 17 into the spray plate 15. When the working surface of the spray plate 15 faces the seedling box 8, the constraint block 1301 squeezes the air bag 16 to spray the nutrient solution in the spray plate 15 onto the cucumber seedlings. When the seedling box 8 rotates to the side of the spray plate 15, the bottom surface of the seedling box 8 is pushed by the first push rod 201 and flipped outward at a partial angle, so that the contact area between the seedling box 8 and the spray plate 15 is increased, thereby improving the uniformity of the cucumber seedlings when being irrigated.

[0051] As the airbag 16 is gradually inflated, air circulates inside the second air pipe 1704 fixedly connected to the airbag 16. The air causes the wind wheel 1703 in the sealing tube 1702 to rotate. During the rotation, the coaxial stirring rod 1705 is driven to evenly stir the nutrient solution and powdery mildew pathogens in the water tank 17, thereby avoiding the problem of uneven concentration of pathogens in the water tank 17.

[0052] One-way valves are fixedly installed in the first air pipe 1601 and the second air pipe 1704, and the working surfaces of the two one-way valves are opposite, so that the airflow in the first air pipe 1601 and the second air pipe 1704 can only move along the working direction and cannot flow back.

[0053] It should be noted that the second swing arm 12 is eccentrically mounted on the dividing plate 5 and is a detachable structure tightened with the first swing arm 11 by bolts. When irrigation is not required, the second swing arm 12 is separated from the first swing arm 11.

[0054] Example 3:

[0055] See Figure 1-Figure 7 , which is basically the same as Example 2. On the basis of Example 2, the entire technical solution is further optimized.

[0056] See Figure 1-Figure 2 , a specific implementation plan for inducing the production of resistance substances in cucumber seedlings has been added, and a fill light board 18 is fixedly installed on the support base 1, and the fill light board 18 is located 25-30 cm above the cucumber seedlings.

[0057] Furthermore, a fill light is installed on the fill light board 18, and the fill light is composed of a red light with a wavelength of 660nm and a blue light with a wavelength of 470nm, and the ratio of the red light to the blue light is 3:1.

[0058] Through the setting of the above structure, when there is no sunlight at night, the fill light is turned on towards the seedling box 8. The red and blue mixed light source can induce the cucumber seedlings to produce resistance substances, increase the total phenol, flavonoid and lignin content, effectively resist the invasion of powdery mildew pathogens, and achieve the purpose of disease resistance.

[0059] Example 4:

[0060] Through the setting of the above structure, we propose a breeding method for cucumbers resistant to powdery mildew.

[0061] A method for breeding cucumbers resistant to powdery mildew, comprising the following steps:

[0062] Step 1: First, place the seedling box 8 containing cucumber seeds on the connecting seat 401 on the water absorption baffle 4. According to the law of light movement, the side with greater light intensity will cause the air in the solar heat collecting tube 406 to expand due to heat. The expanded air pushes the second push rod 407 to make the slider 404 slide in the mounting seat 403 toward the side with stronger sunlight. The sliding slider 404 drives the meshing notched gear 802 to rotate through the rack 405 at the end. The rotating notched gear 802 drives the seedling box 8 to flip around the extension shaft 801 as the axis, thereby increasing the contact time between the seeds and sunlight and improving the photosynthetic efficiency of the seeds.

[0063] Step 2: The output end of the motor 6 intermittently drives the indexing plate 5 to rotate one degree through the dial 7, and the indexing plate 5 transmits the rotational force to the windmill frame 3, so that each seedling box 8 on the windmill frame 3 can be fully exposed to sunlight, and there is no problem of the lower seedling box 8 being blocked by the upper seedling box 8;

[0064] Step 3: During the intermittent rotation of the indexing plate 5, the indexing plate 5 pulls the first swing arm 11 to swing on the first support column 9 through the second swing arm 12, and the swinging first swing arm 11 moves away from one end of the indexing plate 5, driving the rotatably connected driving arm 14 to swing on the second support column 13, and a constraint block 1301 adapted to the mounting groove 1401 is rotatably installed at the axis center of the second support column 13, and during the swinging of the driving arm 14, the constraint block 1301 continuously squeezes the air bag 16 in the mounting groove 1401, and when the working surface of the spray plate 15 faces the water tank 17, the air bag 16 is gradually inflated and forms a negative pressure inside the spray plate 15, sucking the nutrient solution in the water tank 17 into the spray plate 15, and when the working surface of the spray plate 15 faces the seedling box 8, the constraint block 1301 squeezes the air bag 16 to spray the nutrient solution in the spray plate 15 onto the cucumber seedlings, thereby irrigating the cucumber seedlings;

[0065] Step 4: When the seedling box 8 rotates to the side of the spray plate 15, the bottom surface of the seedling box 8 is pushed by the first push rod 201 and flipped outward at a certain angle, so that the contact area between the seedling box 8 and the spray plate 15 is increased, thereby improving the uniformity of the cucumber seedlings when being irrigated;

[0066] Step 5: As the airbag 16 is gradually inflated, air circulates inside the second air pipe 1704 fixedly connected to the airbag 16. The air causes the wind wheel 1703 in the sealing cylinder 1702 to rotate. During the rotation, the coaxial stirring rod 1705 is driven to evenly stir the nutrient solution and powdery mildew pathogens in the water tank 17, thereby avoiding the problem of uneven concentration of pathogens in the water tank 17.

[0067] Step 6: In the absence of sunlight at night, turn on the supplementary light towards the seedling box 8. The red and blue mixed light source can induce the cucumber seedlings to produce resistance substances, increase the content of total phenols, flavonoids, and lignin, and effectively resist the invasion of powdery mildew pathogens, thereby achieving the purpose of disease resistance.

[0068] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A cucumber breeding device for resistance to powdery mildew, comprising a support base (1), characterized in that: The support seat (1) is fixedly mounted with a connecting shaft (2), a windmill frame (3) is rotatably mounted on the connecting shaft (2), a water absorption baffle (4) is rotatably mounted on the windmill frame (3), a dividing plate (5) is rotatably mounted on one end of the connecting shaft (2) passing through the windmill frame (3), the dividing plate (5) is fixedly connected to the windmill frame (3), a motor (6) is mounted on the support seat (1), a dial (7) adapted to the dividing plate (5) is fixedly mounted on the output end of the motor (6), and further comprises; A seedling raising component, the seedling raising component being arranged on the water absorption baffle (4), and being used for raising cucumber seedlings; The seedling raising component comprises: a seedling raising box (8), both sides of which are fixedly mounted with extension shafts (801), and a notched gear (802) fixedly mounted on the extension shaft (801); a connecting seat (401) fixedly mounted at four corners of the water absorption baffle (4), and an arc-shaped notch (402) adapted to the extension shaft (801) is provided on the connecting seat (401); and further comprises: a mounting seat (403) fixedly mounted on both sides of the water absorption baffle (4), a slider (404) slidably mounted in the mounting seat (403), racks (405) capable of meshing with the notched gear (802) fixedly mounted on both sides of the slider (404), a solar heat collecting tube (406) fixedly mounted on the mounting seat (403), a piston assembled in the solar heat collecting tube (406), and a second push rod (407) fixedly mounted between the piston and the slider (404); The invention also includes a spray assembly, which is arranged on the support base (1) and is used for irrigating cucumber seedlings. The spray assembly includes: two first support columns (9) fixedly mounted on the support base (1), a connecting shaft (10) rotatably connected between the two first support columns (9), one end of the connecting shaft (10) passes through the first support column (9) and is fixedly mounted with a first swing arm (11), a second swing arm (12) rotatably connected between the first swing arm (11) and the dial (7), two second support columns (13) fixedly mounted on the support base (1), a driving arm (14) rotatably connected between the two second support columns (13), the driving arm (14) being rotatably connected to the first swing arm (11), a spray plate (15) fixedly mounted between the driving arms (14) on both sides, and a working surface of the spray plate (15) facing the water absorption baffle (4); The driving arm (14) is provided with a mounting groove (1401), an air bag (16) is fixedly mounted in the mounting groove (1401), and a first air pipe (1601) is fixedly connected between the air bag (16) and the spray plate (15); A water tank (17) is fixedly mounted on the support base (1), and the water tank (17) is filled with nutrient solution. An air inlet (1701) and a sealing cylinder (1702) adapted to the air inlet (1701) are provided at the bottom of the water tank (17). A second air pipe (1704) is fixedly connected between the sealing cylinder (1702) and the air bag (16). A wind wheel (1703) is rotatably mounted in the sealing cylinder (1702). A stirring rod (1705) is provided in the water tank (17), and the stirring rod (1705) is coaxially connected to the wind wheel (1703).

2. A cucumber breeding device for resistance to powdery mildew according to claim 1, characterized in that: A first push rod (201) is fixedly mounted on the connecting shaft (2), and a roller (202) is rotatably mounted on one end of the first push rod (201) close to the water absorption baffle (4).

3. A cucumber breeding device for resistance to powdery mildew according to claim 1, characterized in that: A fill light panel (18) is fixedly mounted on the support base (1), and the fill light panel (18) is located 25-30 cm above the cucumber seedlings.

4. A cucumber breeding device for resistance to powdery mildew according to claim 3, characterized in that: The fill light board (18) is equipped with a fill light, which is composed of a red light with a wavelength of 660nm and a blue light with a wavelength of 470nm, and the ratio of the red light to the blue light is 3:

1.

5. A method for breeding cucumbers resistant to powdery mildew, using the device for breeding cucumbers resistant to powdery mildew according to any one of claims 1 to 4, characterized in that: The steps are as follows: Step 1: Place the seeds in a tray container to ripen; Step 2: Increase the duration of light exposure for seeds to improve their photosynthesis; Step 3: When the seeds have two leaves and one heart, inoculate with powdery mildew pathogen; Step 4: Provide light supplement to the seedlings to induce the production of resistance substances in the cucumber seedlings.

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