Wheat amphibious seed selection and breeding device

Abstract

The utility model belongs to the technical field of wheat breeding equipment, and particularly relates to a wheat amphibious seed selection and breeding device. Comprising a water tank, a plurality of supports which are distributed longitudinally and transversely are arranged at an opening of the water tank, a plurality of cultivation boxes are placed on the supports, the cultivation boxes are connected in an inserted mode, drip irrigation devices are arranged above the cultivation boxes, root guiding pieces are placed in the cultivation boxes, a first temperature controller and a dissolved oxygen detector are installed in the water tank, and glass greenhouses are stacked above the water tank. A second temperature controller, a light control device and a carbon dioxide detector are installed in the glass greenhouse, the glass greenhouse is communicated with an air inlet valve and an air outlet valve, the water tank is communicated with a circulating pump through a pipeline, the circulating pump is communicated with an oxygen dissolving tank, and the discharging end of the oxygen dissolving tank is communicated with the water tank. According to the utility model, the dissolved oxygen of the nutrient solution can be improved, the soil cannot fall into the water tank in the cultivation process, the root system is convenient to observe, and the cultivation box can be conveniently taken out to clean dead seedlings and the root system thereof.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheat breeding equipment, and particularly relates to a wheat amphibious seed selection and breeding device. Background Art

[0002] Wheat is one of the main food crops in China, with a large planting area in China. However, due to the large regional differences and complex climate changes in China, there will be situations of severe drought followed by severe flood. This requires the selection and breeding of wheat varieties that can grow in both waterlogged and dry conditions. Wheat amphibious seed selection and breeding is a means of selecting and breeding wheat by simulating amphibious conditions.

[0003] The patent with the application number 201811453659.7 discloses an amphibious seed selection and breeding box for rice and wheat, including: a water tank for storing nutrient-rich water; a first thermostat for adjusting the water temperature in the water tank; root guiding sheets through which part of the roots of rice and wheat can pass and which can block the passage of air and water; a soil layer for accommodating 7-25 cm of soil; a glass greenhouse for providing a controllable indoor environment; a second thermostat for adjusting the temperature in the glass greenhouse; a light control device for adjusting the light brightness in the glass greenhouse; and a CO 2 concentration controller for adjusting the CO 2 concentration in the glass greenhouse. The present invention has the following beneficial effects: it can simulate the amphibious planting conditions of rice and wheat; it can be used for high photosynthetic efficiency breeding of rice, wheat, and wheat; it can be used for observing and testing the unlocking conditions of C4 gene expression under amphibious conditions of rice and wheat; it can be used for determining the reasonable sowing density of the main ear dominant planting method of rice and wheat.

[0004] However, this patent has the following deficiencies in use: there is no dissolved oxygen device in the water tank. When the wheat roots absorb nutrients, they need oxygen supply, otherwise root rot will occur; the weight of the soil layer is completely borne by a single root guiding sheet, and the root guiding sheet is prone to breakage; there is no shielding around the soil layer, and the soil will fall into the water tank below; a large number of wheat seedlings are required for wheat seed selection and breeding work. During breeding, some wheat seedlings may die, and the dead seedlings need to be removed. Otherwise, the rotten roots after death will rot in the water and affect the growth of other seedlings. However, it is difficult to remove the dead seedlings and their roots in this patent. The entire root guiding sheet and soil layer need to be lifted to remove the rotten roots. Summary of the Invention

[0005] The purpose of the utility model is to provide a wheat amphibious seed selection and breeding device to solve the problems existing in the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A wheat amphibious seed selection and breeding device includes a water tank. There are several supports distributed vertically and horizontally at the mouth of the water tank. Several cultivation boxes are placed on the supports. The cultivation boxes are inserted into each other. A drip irrigation device is arranged above the cultivation boxes. Root guiding sheets are placed in the cultivation boxes. A first temperature controller and a dissolved oxygen detector are installed inside the water tank. A glass greenhouse is stacked above the water tank. A second temperature controller, a light control device, and a carbon dioxide detector are installed inside the glass greenhouse. The glass greenhouse is connected with an air inlet valve and an air outlet valve. The water tank is connected with a circulation pump through a pipeline. The circulation pump is connected with a dissolved oxygen tank. The discharge end of the dissolved oxygen tank is connected with the water tank.

[0008] Furthermore, the water tank is connected with a water inlet valve and a water outlet valve. The water inlet valve is located at the upper part of the water tank, and the water outlet valve is located at the bottom of the water tank. The circulation pump is connected with the water tank through the water outlet valve. The discharge end of the dissolved oxygen tank is connected with the water tank through the water inlet valve.

[0009] Furthermore, a water changing valve is connected in parallel on the pipeline between the circulation pump and the water outlet valve, and a drainage valve is connected in parallel on the pipeline between the discharge end of the dissolved oxygen tank and the water inlet valve.

[0010] Furthermore, the bottom of the cultivation box has a hollow, and the root guiding sheet covers the hollow. Slots are arranged on the outer walls on both sides of the cultivation box, and insertion blocks are arranged on the outer walls on the other two sides of the cultivation box. Four hanging rings are symmetrically fixed along the upper edge of the cultivation box.

[0011] Furthermore, the insertion block is in a T shape, and the shape of the slot matches the shape of the insertion block. The cultivation boxes are inserted into each other through the slots and the insertion blocks.

[0012] Furthermore, the water tank is made of a transparent material to facilitate observing the wheat roots.

[0013] Furthermore, the drip irrigation device is a surface drip irrigation system.

[0014] Furthermore, the top of the glass greenhouse is provided with a pull-out top cover.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model can improve the dissolved oxygen of the nutrient solution. During the cultivation process, the soil will not fall into the water tank, which is convenient for observing the roots, and the cultivation box can be conveniently taken out to clean the dead seedlings and their roots.

[0017] 2. The root guiding sheets are placed in several independent cultivation boxes, and then dry soil is covered on the root guiding sheets. Therefore, the soil will not fall into the water tank, thus keeping the inside of the water tank clean.

[0018] 3. The bottom of the cultivation box has supports for bearing, thus increasing the bearing capacity of the dry soil.

[0019] 4. The dissolved oxygen circulation of the nutrient solution is carried out through the circulation pump, the dissolved oxygen tank and their affiliated pipelines and valves to meet the oxygen demand of the roots during the growth process of the wheat seedlings.

[0020] 5. Even if the roots of the dead seedlings are relatively long, it is possible to clean up the dead seedlings without damaging the roots of the normal seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the present utility model.

[0022] Figure 2 is a schematic structural view of the cultivation box of the present utility model.

[0023] Figure 3 is a schematic structural view of the bottom of the cultivation box of the present utility model.

[0024] Figure 4 is a schematic structural view of the cultivation box after being plugged together of the present utility model.

[0025] Figure 5 is a schematic structural view of the glass greenhouse of the present utility model.

[0026] Wherein: 1. water tank; 2. support; 3. cultivation box; 4. drip irrigation device; 5. root guiding sheet; 6. first temperature controller; 7. dissolved oxygen detector; 8. glass greenhouse; 9. second temperature controller; 10. light control device; 11. carbon dioxide detector; 12. intake valve; 13. outlet valve; 14. circulation pump; 15. dissolved oxygen tank; 16. inlet valve; 17. outlet valve; 18. water change valve; 19. drain valve; 20. slot; 21. plug; 22. hanging ring; 23. top cover; 24. pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further describes the present utility model in detail with reference to specific embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] As Figures 1-5 shown, a wheat amphibious seed selection and breeding device includes a water tank, and a plurality of supports distributed vertically and horizontally are arranged at the mouth of the water tank. A plurality of cultivation boxes are placed on the supports, and the cultivation boxes are plugged together with each other. A drip irrigation device is arranged above the cultivation boxes, a root guiding sheet is placed in the cultivation boxes, a first temperature controller and a dissolved oxygen detector are installed inside the water tank, a glass greenhouse is stacked above the water tank, a second temperature controller, a light control device and a carbon dioxide detector are installed inside the glass greenhouse, an intake valve and an outlet valve are communicated with the glass greenhouse, the water tank is communicated with a circulation pump through a pipeline, the circulation pump is communicated with a dissolved oxygen tank, and the discharging end of the dissolved oxygen tank is communicated with the water tank.

[0029] The water tank is used to store nutrient solution. The first thermostat uses the existing water temperature adjustment settings to adjust the water temperature; the second thermostat can adopt various heating methods such as hot air heating, hot water heating, electric heating, and radiant heating, and various cooling methods such as sunshading and evaporative cooling; the light control device is used to adjust the light brightness in the glass greenhouse, and the light control device can adopt a curtain system to control the light of the glass temperature; the carbon dioxide detector is used to detect the carbon dioxide concentration in the glass greenhouse. When the carbon dioxide concentration is low, carbon dioxide is introduced through the intake pipe, and the air outlet valve is used for air outlet. The dissolved oxygen detector is used to detect the dissolved oxygen in the nutrient solution in the water tank. When the dissolved oxygen is low, the nutrient solution is pumped into the dissolved oxygen tank to increase the dissolved oxygen, and then returned to the water tank. The dissolved oxygen tank is a common dissolved oxygen method in the prior art, usually by introducing oxygen-rich gas into the dissolved oxygen tank and mixing it with the liquid in the dissolved oxygen tank to increase the dissolved oxygen, which will not be elaborated here.

[0030] The water tank is connected with an inlet valve and an outlet valve. The inlet valve is located at the upper part of the water tank, and the outlet valve is located at the bottom of the water tank. The circulation pump is connected to the water tank through the outlet valve, and the discharge end of the dissolved oxygen tank is connected to the water tank through the inlet valve. Nutrient solution is injected into it through the inlet valve, and the nutrient solution is discharged from the outlet valve.

[0031] A water change valve is connected in parallel on the pipeline between the circulation pump and the outlet valve, and a drain valve is connected in parallel on the pipeline between the discharge end of the dissolved oxygen tank and the inlet valve. The water change valve is used to pump the separately prepared nutrient solution into the dissolved oxygen tank through the circulation pump and then inject it into the water tank through the dissolved oxygen tank. The drain valve is used to pump the nutrient solution in the water tank into the dissolved oxygen tank through the circulation pump and then discharge it from the dissolved oxygen tank through the drain valve.

[0032] There are hollow openings at the bottom of the cultivation box, which are covered by root guiding sheets. Slots are provided on the outer walls on both sides of the cultivation box, and insertion blocks are provided on the outer walls on the other two sides of the cultivation box. Four hanging rings are symmetrically fixed along the upper edge of the cultivation box.

[0033] The shape of the insertion block is T-shaped, and the shape of the slot matches the shape of the insertion block. The cultivation boxes are inserted into each other through the slots and insertion blocks.

[0034] The water tank is made of transparent material to facilitate observing the wheat roots.

[0035] The drip irrigation device is a ground drip irrigation system. In a ground drip irrigation system, usually the drip irrigation pipe is located on the ground, and several branch pipes branch out from the drip irrigation pipe. The branch pipes are inserted into the soil through drip irrigation plugs, so as to introduce the water in the drip irrigation pipe into the soil.

[0036] A pull-out top cover is provided at the top of the glass greenhouse.

[0037] The working principle of the present utility model is:

[0038] During use, cover the root guiding sheet of the cultivation box with dry soil and transplant wheat seedlings thereon. Since the root system of dryland wheat is relatively long, the height of the water tank can be set at about 2 meters, and a platform is made for convenient operation. When the dissolved oxygen in the nutrient solution in the water tank is insufficient, open the water outlet valve, and pump the nutrient solution into the dissolved oxygen tank through the circulation pump to increase the oxygen content. The discharge end of the dissolved oxygen tank is higher than the water inlet valve of the water tank. Open the water inlet valve, so that the nutrient solution with increased dissolved oxygen flows into the water tank by its own weight. Such a cycle continues until the dissolved oxygen detected by the dissolved oxygen detector reaches the set value.

[0039] When the entire nutrient solution in the water tank needs to be replaced, open the water outlet valve, drain valve, and circulation pump, pump the nutrient solution into the dissolved oxygen tank, and drain it through the drain valve. Then close the water outlet valve, drain valve, and circulation pump. Connect the new nutrient solution storage tank to the water changing valve, open the water changing valve, water inlet valve, and circulation pump, so as to send the new nutrient solution into the water tank through the dissolved oxygen tank.

[0040] When dead seedlings appear, hold the hanging ring on the upper edge of the cultivation box and pull it upward to pull out the cultivation box. First, clean the root system of the dead seedlings, be careful not to let the roots fall into the water tank, and do not damage other normal wheat seedlings nearby. Then clean the dead seedlings, and then reset the cultivation box. Sometimes the root system of the dead seedlings is relatively long, and a relatively long distance needs to be pulled upward to completely expose the roots. First, open the top cover of the glass greenhouse, and then use a hoisting tool such as a hoisting gourd to hang on the hanging ring and pull it upward. After cleaning the roots, clean the dead seedlings.

[0041] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope of the present invention.

[0042] The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A wheat amphibious seed selection and breeding device, characterized in that: It comprises a water tank, wherein the mouth of the water tank is provided with a plurality of supports distributed vertically and horizontally, a plurality of cultivation boxes are placed on the supports, the cultivation boxes are plugged into each other, a drip irrigation device is arranged above the cultivation boxes, a root guide sheet is placed in the cultivation box, a first thermostat and a dissolved oxygen detector are installed inside the water tank, a glass greenhouse is stacked above the water tank, a second thermostat, a light control device and a carbon dioxide detector are installed in the glass greenhouse, an air inlet valve and an air outlet valve are connected to the glass greenhouse, the water tank is connected to a circulation pump through a pipeline, the circulation pump is connected to a dissolved oxygen tank, and the discharge end of the dissolved oxygen tank is connected to the water tank.

2. The amphibious wheat seed selection and breeding device according to claim 1, characterized in that: The water tank is connected with an inlet valve and an outlet valve. The inlet valve is located at the upper part of the water tank, the outlet valve is located at the bottom of the water tank, the circulating pump is connected with the water tank through the outlet valve, and the discharge end of the dissolved oxygen tank is connected with the water tank through the inlet valve.

3. The amphibious wheat seed selection and breeding device according to claim 2, characterized in that: A water exchange valve is connected in parallel on the pipeline between the circulation pump and the water outlet valve, and a drainage valve is connected in parallel on the pipeline between the discharge end of the dissolved oxygen tank and the water inlet valve.

4. The amphibious wheat seed selection and breeding device according to claim 1, characterized in that: The bottom of the cultivation box is hollowed out, the root guide sheet covers the hollowing out, slots are arranged on the outer walls on both sides of the cultivation box, plug blocks are arranged on the outer walls on the other two sides of the cultivation box, and four hanging rings are symmetrically fixed on the upper edge of the cultivation box.

5. The amphibious wheat seed selection and breeding device according to claim 4, characterized in that: The plug block is in a T-shape, the slot shape matches the plug block shape, and the culture boxes are plugged into each other via the slot and the plug block.

6. The amphibious wheat seed selection and breeding device according to claim 1, characterized in that: The water tank is made of transparent material to facilitate observation of the wheat root system.

7. The amphibious wheat seed selection and breeding device according to claim 1, characterized in that: The drip irrigation device is an above-ground drip irrigation system.

8. The amphibious wheat seed selection and breeding device according to claim 1, characterized in that: A pull-out top cover is provided on the top of the glass greenhouse.

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