Device for identifying drought tolerance in corn seedling stage

Abstract

The invention belongs to the technical field of agricultural planting, and discloses a corn seedling stage drought tolerance identification device which comprises a water pool arranged in an inner cavity of a culture box for use, and the water pool is circularly communicated with a circulating cavity in the culture box; the supporting frame is erected on the water pool, the breeding pot used for breeding corn seedlings is arranged on the supporting frame, and culture soil in the breeding pot makes contact with water in the water pool; the partition plate abuts against the supporting frame, and the partition plate and the culture box are divided into culture cavities corresponding to the culture pots. The ventilation box is fixedly installed at the top end of the culture box and communicated with the air exhauster, the ventilation box is communicated with the culture cavities, and a control assembly used for controlling the ventilation amount is arranged in the ventilation box. The device is simple in structure and convenient to use, an independent culture space can be formed in the culture box, different culture and environments can be formed, the growth states of corn seedlings in the culture basin in different environments can be conveniently observed, the drought tolerance of the corn seedlings can be observed, the contrast is more sufficient, and drought tolerance identification in various environments can be completed at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a device for identifying drought resistance of corn at the seedling stage. Background Art

[0002] Corn is an important food crop in my country with excellent drought resistance and is widely planted in northern my country. Although corn has strong drought resistance, it is most sensitive to water during the seedling stage. Drought stress during the seedling stage will lead to stunted seedling growth, weak bud vigor, few and short roots, weak seedlings, and low survival rate, which will seriously affect the growth and development of grains and final yield. Therefore, the assessment of its drought resistance is of great significance to increasing crop yields and adapting to climate change.

[0003] At present, the traditional corn seedling drought tolerance identification method widely used in the market and scientific research field mostly relies on observation and measurement under natural drought conditions in the field. This method is greatly restricted by natural conditions such as region and season, and it is difficult to standardize the operation. At the same time, the identification cycle is long and the cost is high, which is not conducive to the rapid screening of drought-resistant varieties. In addition, environmental variables are difficult to control accurately, resulting in poor repeatability of identification results, affecting the accuracy of the assessment. In addition, some laboratories have adopted artificial simulation of drought conditions for identification, but the existing devices only simulate closed environments through containers, and then control the environmental changes in the containers to simulate drought environments. However, it is not convenient to simulate different drought environments at the same time, and the contrast is insufficient. It is impossible to test the drought tolerance of seedlings of the same period at the same time, resulting in insufficient simulation authenticity.

[0004] Therefore, the present application designs a device for identifying drought tolerance of corn seedlings to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a device for identifying drought resistance of corn at the seedling stage.

[0006] To achieve the above object, the present invention provides a device for identifying drought tolerance of corn seedlings, comprising:

[0007] A water pool, the water pool is arranged in the inner cavity of the incubator for use, and the water pool is cyclically connected with the circulation cavity in the incubator;

[0008] A support frame, the support frame is erected on the water pool to divide the pool surface of the water pool into a plurality of first spaces, and a breeding pot for cultivating corn seedlings is lifted and erected in the first spaces, and the culture soil in the breeding pot is in contact with the water in the water pool;

[0009] A partition plate, the partition plate abutting against the support frame, combining the first space and the culture box to separate the first space into a culture cavity corresponding to the culture basin;

[0010] A ventilation box is fixedly mounted on the top of the culture box and is connected to the exhaust fan. The ventilation boxes are respectively connected to the culture chambers. A control component for controlling the ventilation volume is arranged in the ventilation box.

[0011] In the corn seedling drought resistance identification device disclosed in the application, a plurality of exhaust holes corresponding to the breeding chamber are opened at the top of the culture box, the ventilation box is connected with the breeding chamber through a first connecting pipe corresponding to the exhaust holes, the top of the ventilation box is connected with the exhaust fan through a second connecting pipe, and the control is arranged in the connecting pipe to control the exhaust volume of the first connecting pipe.

[0012] In the corn seedling drought resistance identification device disclosed in the application, the control component includes a control screw rotatably connected to the first connecting tube, and a control plug is threadedly connected to the control screw. The control plug is arranged in a conical shape and is raised and lowered in the first connecting tube to control the flow rate in the first connecting tube.

[0013] In the corn seedling drought resistance identification device disclosed in the application, the top end of the control plug is rotatably connected to a lifting plate, the inner ring of the lifting plate is fixed with a sliding block, the sliding block extends into a sliding groove longitudinally opened on the control screw, the sliding block is in sliding contact with a conductive block embedded in the sliding groove, and the sliding block and the conductive block form a connected circuit.

[0014] In the corn seedling drought resistance identification device disclosed in the application, a positioning groove is provided at the top of the first space, and a positioning ring corresponding to the positioning groove is fixedly connected to the outer wall of the breeding basin, and the positioning ring is embedded in the positioning groove; a lifting assembly is provided in the positioning groove, and the output end of the lifting assembly abuts against the bottom end of the positioning ring.

[0015] In the corn seedling drought resistance identification device disclosed in the application, the lifting assembly includes a plurality of lifting holes opened at the bottom end of the positioning groove, a lifting rod is arranged in the lifting hole, the top end of the lifting rod extends out of the lifting hole and is fixedly connected to a contact plate, and the contact plate is arranged in contact with the bottom end of the positioning ring.

[0016] In the corn seedling drought resistance identification device disclosed in the application, a plurality of seepage holes are opened at the bottom end of the breeding basin, the top end of the water guide strip embedded in the seepage hole extends into the inner cavity of the breeding basin and contacts the culture soil, and the bottom end of the water guide strip is arranged in a staggered height and contacts the water surface in the pool.

[0017] In the corn seedling drought resistance identification device disclosed in the application, the culture box includes a base for supporting the water pool, a transparent protective cover is provided on the base, the inner wall of the protective cover forms the side wall of the breeding chamber, the ventilation box is fixedly installed on the top of the protective cover, and the side wall of the protective cover is provided with an openable movable window.

[0018] In the corn seedling drought resistance identification device disclosed in the application, a spray pipe is arranged around the side wall of the protective cover, and the spray pipe is connected to a plurality of water distribution pipes, which extend into the breeding cavity and irrigate the corn seedlings in the breeding cavity.

[0019] In the corn seedling drought resistance identification device disclosed in the application, the inner cavity of the protective cover is provided with a plurality of fill-in lights and a plurality of temperature-adjusting lights, and the fill-in lights and the temperature-adjusting lights are respectively arranged corresponding to the breeding cavity.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a device for identifying drought resistance of corn seedlings, the inner cavity of the incubator is provided with a water pool for containing water, the circulation cavity in the incubator can circulate and filter the water in the water pool to ensure the cleanliness of the water, and at the same time can adjust the water level in the water pool to control the environment of the breeding cavity, thereby forming different breeding environments in the breeding cavity, and observing the growth of corn seedlings in different environments to form a comparison, which is more intuitive; the breeding basin is suspended on the water pool through a support frame, and the water absorption of the breeding basin can be adjusted by adjusting the suspension height in the breeding basin, thereby controlling the humidity of the culture soil, and forming different breeding environments; the partition plate is in the incubator to isolate the breeding cavity to form an independent environment; the ventilation box is arranged in the incubator, and can evacuate the breeding cavity to control the air humidity in the breeding cavity, and the ventilation component arranged in the ventilation box can control the ventilation efficiency of the breeding cavity, thereby making the humidity of the breeding cavity different, and the contrast is more vivid.

[0021] The invention has a simple structure and is easy to use. It can form an independent breeding space in a culture box and can form different breeding and environments, so it is convenient to observe the growth status of corn seedlings in breeding pots in different environments and observe the drought resistance of corn seedlings. It has more sufficient comparison and can complete the drought resistance identification of multiple environments at the same time, providing more detailed data for the drought resistance identification of corn seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of a device for identifying drought tolerance of corn seedlings according to the present invention;

[0024] Figure 2 This is a schematic diagram of the breeding space of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the breeding basin of the present invention;

[0026] Figure 4 For the present invention Figure 3 A partial enlarged view of middle A;

[0027] Figure 5 This is a schematic diagram of the control component structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 A partial enlarged view of B in the middle;

[0029] In the figure: 1. incubator; 2. pool; 3. support frame; 4. culture basin; 5. culture soil; 6. partition plate; 7. culture chamber; 8. ventilation box; 9. corn seedlings; 10. exhaust hole; 11. first connecting pipe; 12. second connecting pipe; 13. control screw; 14. control knob; 15. control plug; 16. bearing; 17. support frame; 18. lifting plate; 19. sliding block; 20. sliding groove; 21. conductive block; 22. wire; 23. positioning groove; 24. positioning ring; 25. lifting hole; 26. lifting rod; 27. contact plate; 28. seepage hole; 29. ​​water guide strip; 30. base; 31. outlet pipe; 32. protective cover; 33. limit cylinder; 34. movable window; 35. spray pipe; 36. water distribution pipe; 37. fill light; 38. temperature control light; 39. support foot; 40. opening. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figure 1-Figure 6 As shown, this embodiment provides a device for identifying drought tolerance of corn seedlings, comprising:

[0033] A water pool 2, which is arranged in the inner cavity of the incubator 1 for use, and the water pool 2 is cyclically connected with the circulation cavity in the incubator 1;

[0034] A support frame 3 is set on the pool 2 to divide the pool surface of the pool 2 into a plurality of first spaces. A breeding pot 4 for cultivating corn seedlings 9 is lifted and set in the first space, and the culture soil 5 in the breeding pot 4 is in contact with the water in the pool 2;

[0035] A partition plate 6, the partition plate 6 is abutted against the support frame 3, and is combined with the first space and the culture box 1 to separate the first space into a culture chamber 7 corresponding to the culture basin 4;

[0036] The ventilation box 8 is fixedly mounted on the top of the culture box 1 and is connected to the exhaust fan. The ventilation box 8 is connected to the culture chamber 7 respectively. A control component for controlling the ventilation volume is arranged in the ventilation box 8.

[0037] The invention discloses a device for identifying drought resistance of corn seedlings. The inner cavity of a culture box 1 is provided with a pool 2 for containing water. The circulation cavity in the culture box 1 can circulate and filter the water in the pool 2 to ensure the cleanliness of the water. At the same time, the water level in the pool 2 can be adjusted to control the environment of a breeding cavity 7, thereby forming different breeding environments in the breeding cavity 7, and observing the growth of corn seedlings 9 in different environments to form a comparison, which is more intuitive; a breeding basin 4 is suspended on the pool 2 through a support frame 3, and the water absorption of the breeding basin 4 can be adjusted by adjusting the suspension height in the breeding basin 4, thereby controlling the humidity of a culture soil 5 to form different breeding environments; a partition plate is in the culture box 1 to isolate the breeding cavity 7 to form an independent environment; a ventilation box 8 is arranged in the culture box 1, and can evacuate the breeding cavity 7 to control the air humidity in the breeding cavity 7. The ventilation component arranged in the ventilation box 8 can control the ventilation efficiency of the breeding cavity 7, thereby making the humidity of the breeding cavity 7 different, and the comparison is more vivid. The present invention has a simple structure and is easy to use. It can form an independent breeding space in the culture box 1 and can form different breeding and environments, which is convenient for observing the growth status of the corn seedlings 9 in the breeding basin 4 under different environments, and observing the drought resistance of the corn seedlings 9. The comparison is more sufficient, and the drought resistance identification of multiple environments can be completed at the same time.

[0038] In one embodiment of the corn seedling drought tolerance identification device of the present application, a plurality of exhaust holes 10 corresponding to the culture chamber 7 are provided at the top of the culture box 1, and the ventilation box 8 is connected to the culture chamber 7 through a first connecting pipe 11 corresponding to the exhaust holes 10, and the top of the ventilation box 8 is connected to the exhaust machine through a second connecting pipe 12, and a control is set in the connecting pipe to control the exhaust volume of the first connecting pipe 11. The ventilation box 8 is connected to the exhaust machine through the second connecting pipe 12, and the first connecting pipe 11 at the bottom of the ventilation box 8 is plugged into the exhaust hole 10, so that the first connecting pipe 11 can exhaust the corresponding culture chamber 7 and control the air humidity in the culture chamber 7.

[0039] In one embodiment of the corn seedling drought tolerance identification device of the present application, the control assembly includes a control screw 13 rotatably connected to the first connecting tube 11, and a control plug 15 is threadedly connected to the control screw 13. The control plug 15 is arranged in a conical shape and rises and falls in the first connecting tube 11 to control the flow rate in the first connecting tube 11. A support frame 17 is arranged in the first connecting tube 11 to support the control screw 13 without affecting the ventilation volume of the first connecting tube 11, and the top end of the control screw 13 passes through the ventilation box 8 through a bearing 16 embedded in the top surface of the ventilation box 8. The top end of the control screw 13 is fixedly connected to a control knob 14, thereby facilitating the control of the rotation of the control screw 13; when the control screw 13 rotates, the inverted cone-shaped control plug 15 rises and falls in the ventilation box 8, thereby controlling the ventilation volume of the control plug 15 embedded in the first connecting tube 11.

[0040] In one embodiment of the corn seedling drought tolerance identification device of the present application, the top of the control plug 15 is rotatably connected to a lifting disk 18, and the inner ring of the lifting disk 18 is fixed with a sliding block 19, and the sliding block 19 extends into a sliding groove 20 longitudinally opened on the control screw 13, and the sliding block 19 is in sliding contact with a conductive block 21 embedded in the sliding groove 20, and the sliding block 19 and the conductive block 21 form a connected circuit. The sliding groove 20 is longitudinally opened on the control screw 13, and the sliding block 19 extends into the sliding groove 20 and is slidably connected with the sliding groove 20. When the control plug 15 is lifted or lowered, the sliding block 19 is also lifted or lowered, and its position on the conductive block 21 changes; the conductive block 21 and the sliding block 19 are respectively connected with a wire 22, and a closed loop circuit is formed between the sliding block 19 and the conductive block 21, and the position change of the sliding block 19 will cause the resistance of the circuit to change, and then observe the change of the current through the circuit to observe the position of the control plug 15, and the ventilation volume of the first connecting pipe 11 can be displayed from the side.

[0041] In one embodiment of the corn seedling drought tolerance identification device of the present application, a positioning groove 23 is provided at the top of the first space, and a positioning ring 24 corresponding to the positioning groove 23 is fixedly connected to the outer wall of the culture basin 4, and the positioning ring 24 is embedded in the positioning groove 23; a lifting component is provided in the positioning groove 23, and the output end of the lifting component abuts against the bottom end of the positioning ring 24. The culture basin 4 is fixed by the corresponding arrangement of the positioning ring 24 and the positioning groove 23, and the lifting component is arranged between the positioning ring 24 and the positioning groove 23, which can control the height in the culture basin 4, and then control the water absorption of the culture basin 4.

[0042] In one embodiment of the corn seedling drought tolerance identification device of the present application, the lifting assembly includes a plurality of lifting holes 25 opened at the bottom of the positioning groove 23, and a lifting rod 26 is arranged in the lifting hole 25. The top end of the lifting rod 26 extends out of the lifting hole 25 and is fixedly connected with a contact plate 27, and the contact plate 27 is arranged in contact with the bottom end of the positioning ring 24. The lifting rod 26 is involved in the lifting hole 25. When it is retracted, the contact plate 27 is retracted into the lifting hole 25. When it is propped up, the free end of the lifting rod 26 drives the contact plate 27 to rise, pushing the positioning ring 24 to rise, and then raising the breeding basin 4, so that the distance between the bottom end of the breeding basin 4 and the water surface in the pool 2 changes, and the water absorption of the culture soil 5 in the breeding basin 4 is controlled.

[0043] In one embodiment of the corn seedling drought tolerance identification device of the present application, a plurality of seepage holes 28 are provided at the bottom of the culture basin 4, and the top of the water guide strip 29 embedded in the seepage hole 28 extends into the inner cavity of the culture basin 4 and contacts the culture soil 5, and the bottom of the water guide strip 29 is arranged in a staggered manner and contacts the water surface in the pool 2. The water guide strip 29 arranged at the bottom of the culture basin 4 is embedded in the seepage hole 28, and its top extends into the culture soil 5, and the bottom has different heights, extending into the water, and the water in the pool 2 is guided into the culture soil 5 by the capillary principle, thereby realizing irrigation; and the bottom of the water guide strip 29 has different heights, and after the culture basin 4 is raised and lowered, the number and depth of the water guide strip 29 extending under the water surface are different, resulting in different water absorption of the culture basin 4; and when the humidity in the culture soil is too high, the water guide strip 29 can also realize drainage to avoid long-term flooding.

[0044] In one embodiment of the corn seedling drought tolerance identification device of the present application, the incubator 1 includes a base 30 for supporting a pool 2, a transparent protective cover 32 is provided on the base 30, the inner wall of the protective cover 32 forms the side wall of the culture chamber 7, the ventilation box 8 is fixedly installed on the top of the protective cover 32, and the side wall of the protective cover 32 is provided with an openable movable window 34. The circulation chamber is provided in the inner cavity of the base 30, and is connected to the outside through the outlet pipe 31 of the side wall, which can be convenient for water replenishment and fertilizer and medicine addition; the pool 2 is provided on the base 30, and the outlet at the bottom thereof extends into the circulation chamber, which is convenient for water circulation; a limiting cylinder 33 is provided on the base 30, which can be convenient for positioning and fixing the protective cover 32. When the identification is performed, the protective cover covers the partition plate 6 and the corn seedlings 9, so that each corn seedling 9 is in an independent culture space, forming an independent identification environment; an openable movable window 34 is provided in the opening 40 on the side of the protective cover 32, which can be opened to facilitate reaching in and operating during the experiment.

[0045] In one embodiment of the present application, the bottom end of the pool 2 is inclined, and its bottom end is connected to the circulation chamber to facilitate drainage and avoid water accumulation.

[0046] In one embodiment of the present application, a slot for snapping the partition plate 6 is provided in the protective cover 32 to fix the partition plate 6 .

[0047] In one embodiment of the present application, a plurality of supporting feet 39 are disposed at the bottom end of the base 30 .

[0048] In one embodiment of the corn seedling drought tolerance identification device of the present application, a spray pipe 35 is arranged around the side wall of the protective cover 32, and the spray pipe 35 is connected to a plurality of water distribution pipes 36, which extend into the breeding chamber 7 and irrigate the corn seedlings 9 in the breeding chamber 7. The spray pipe 35 is arranged around the protective cover 32, and the water distribution pipe 36 is connected to the side wall of the spray pipe 35 and extends into the breeding space, so as to facilitate the spray irrigation of the corn seedlings 9.

[0049] In one embodiment of the corn seedling drought tolerance identification device of the present application, the inner cavity of the protective cover 32 is provided with a plurality of fill-in lights 37 and a plurality of temperature-adjusting lights 38, and the fill-in lights 37 and the temperature-adjusting lights 38 are respectively provided corresponding to the breeding chamber 7. The fill-in lights 37 and the temperature-adjusting lights 38 are respectively provided corresponding to the breeding space, and are used to provide temperature and light supplement to the breeding space, and control different growth environments.

[0050] In one embodiment of the present application, the protective cover 32 is made of a transparent material to facilitate natural lighting, while the partition plate 6 is made of an opaque heat-insulating material to prevent different breeding spaces from affecting each other.

[0051] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for identifying drought tolerance of corn seedlings, characterized in that: include: A water pool (2), the water pool (2) being arranged in the inner cavity of the incubator (1) for use, the water pool (2) being in circulation communication with a circulation cavity in the incubator (1); A support frame (3), the support frame (3) being erected on the water pool (2) to divide the surface of the water pool (2) into a plurality of first spaces, wherein a cultivation pot (4) for cultivating corn seedlings (9) is erected in a lifting manner in the first spaces, and the culture soil (5) in the cultivation pot (4) is in contact with the water in the water pool (2); a partition plate (6), the partition plate (6) being in contact with the support frame (3) and combining with the first space and the culture box (1) to separate the first space into a culture chamber (7) corresponding to the culture basin (4); A ventilation box (8), the ventilation box (8) is fixedly installed on the top of the culture box (1) and is connected to the exhaust fan, the ventilation box (8) is respectively connected to the culture chamber (7), and a control component for controlling the ventilation volume is arranged in the ventilation box (8).

2. The device for identifying drought tolerance of corn seedlings according to claim 1, characterized in that: The top of the culture box (1) is provided with a plurality of exhaust holes (10) arranged corresponding to the culture chamber (7); the ventilation box (8) is connected to the culture chamber (7) via a first connecting pipe (11) arranged corresponding to the exhaust holes (10); the top of the ventilation box (8) is connected to the exhaust fan via a second connecting pipe (12); and the control is arranged in the connecting pipe to control the exhaust volume of the first connecting pipe (11).

3. The device for identifying drought tolerance of corn seedlings according to claim 2, characterized in that: The control assembly comprises a control screw (13) rotatably connected in the first connecting tube (11); a control plug (15) is threadedly connected to the control screw (13); the control plug (15) is arranged in a conical shape and is raised and lowered in the first connecting tube (11) to control the flow rate in the first connecting tube (11).

4. The device for identifying drought tolerance of corn seedlings according to claim 3, characterized in that: The top end of the control plug (15) is rotatably connected to a lifting disk (18), and the inner ring of the lifting disk (18) is fixedly connected to a sliding block (19). The sliding block (19) extends into a sliding groove (20) longitudinally provided on the control screw (13). The sliding block (19) is in sliding contact with a conductive block (21) embedded in the sliding groove (20), and the sliding block (19) and the conductive block (21) form a connected circuit.

5. The device for identifying drought tolerance of corn seedlings according to claim 1, characterized in that: A positioning groove (23) is arranged at the top of the first space, and a positioning ring (24) corresponding to the positioning groove (23) is fixedly connected to the outer wall of the breeding basin (4), and the positioning ring (24) is embedded in the positioning groove (23); a lifting component is arranged in the positioning groove (23), and the output end of the lifting component abuts against the bottom end of the positioning ring (24).

6. The device for identifying drought tolerance of corn seedlings according to claim 5, characterized in that: The lifting assembly comprises a plurality of lifting holes (25) opened at the bottom end of the positioning groove (23), a lifting rod (26) is arranged in the lifting hole (25), the top end of the lifting rod (26) protrudes out of the lifting hole (25) and is fixedly connected to a contact plate (27), and the contact plate (27) is arranged in contact with the bottom end of the positioning ring (24).

7. The device for identifying drought tolerance of corn seedlings according to claim 1, characterized in that: A plurality of water seepage holes (28) are provided at the bottom of the culture basin (4); the top ends of the water guide strips (29) embedded in the water seepage holes (28) extend into the inner cavity of the culture basin (4) and contact the culture soil (5); the bottom ends of the water guide strips (29) are arranged in a staggered manner and contact the water surface in the pool (2).

8. The device for identifying drought tolerance of corn seedlings according to claim 1, characterized in that: The culture box (1) comprises a base (30) for supporting the pool (2); a transparent protective cover (32) is provided on the base (30); the inner wall of the protective cover (32) forms the side wall of the culture chamber (7); the ventilation box (8) is fixedly mounted on the top of the protective cover (32); and the side wall of the protective cover (32) is provided with an openable movable window (34).

9. The device for identifying drought tolerance of corn seedlings according to claim 8, characterized in that: A spray pipe (35) is disposed around the side wall of the protective cover (32), and the spray pipe (35) is connected to a plurality of water distribution pipes (36). The water distribution pipes (36) extend into the culture cavity (7) and irrigate the corn seedlings (9) in the culture cavity (7).

10. The device for identifying drought tolerance of corn seedlings according to claim 8, characterized in that: The inner cavity of the protective cover (32) is provided with a plurality of supplementary lights (37) and a plurality of temperature adjustment lights (38), and the supplementary lights (37) and the temperature adjustment lights (38) are respectively arranged corresponding to the breeding cavity (7).

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