Plant root exudates collecting device

Abstract

The utility model belongs to the technical field of root exudate collection, and particularly relates to a plant root exudate collection device which comprises a collection cylinder, the planting cylinder is arranged in the collecting cylinder in a sleeving manner; communicating holes are uniformly formed in the bottom wall and the side wall of the planting cylinder; a circulation pool; the liquid inlet end of the first pump body is communicated with the bottom of the collecting barrel, and the liquid outlet end of the first pump body is communicated with the circulating pool; the liquid inlet end of the second pump body is communicated with the circulating pool, and the liquid outlet end of the second pump body is communicated with the collecting cylinder. According to the utility model, the influence on the growth space and the growth direction of the plant seedling root system can be avoided to a certain extent, so that the natural growth of the plant seedling root system is facilitated; meanwhile, by means of the circulating pool and the pump body, the nutrient solution can circularly flow in the collecting and planting cylinder, subsequent collecting of root exudates is facilitated, meanwhile, the root exudates can be collected in different periods of plant seedlings, and operation is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of collecting root secretions, and in particular relates to a device for collecting plant root secretions. Background Art

[0002] Plant root exudates are a general term for low molecular weight organic compounds, high molecular weight colloids, cell shedding and lysates, etc., which are released from living and undisturbed roots into the rhizosphere environment under certain conditions. They are an important medium for the exchange of substances, energy and information between plants and the rhizosphere environment. At the same time, they can also affect the growth and development of surrounding plants, change the physical and chemical properties of the soil, the state of mineral elements in the soil, the distribution of soil microbial communities and soil enzyme activity, etc. The systematic study of plant root exudates is an important part of research in the fields of plant autotoxicity, plant nutrition and soil remediation.

[0003] When studying root secretions, it is essential to collect or collect root secretions. In the prior art, there are a variety of devices for collecting or collecting root secretions, such as the patent with application number CN202210996199.2, which discloses a root secretion collecting device, including an upper cylinder and a lower cylinder at least arranged from above, the bottom of the upper cylinder is detachably connected to the top of the lower cylinder; a support plate is installed at the bottom of the upper cylinder, and a plurality of root through holes are arranged on the support plate, and the upper cylinder is used to hold nutrient soil for plant growth, and the roots grown by the plant can pass through the root through holes downward and enter the lower cylinder; the lower cylinder is used to hold the collection liquid, and the roots grown by the plant can enter the collection liquid, and the sea of ​​the lower cylinder is provided with a collection component, and the collection component can collect the root secretions of the plant. The root secretion collecting device disclosed in the patent can simulate the growth of plants in the soil in the early stage of growth, and can easily collect plant root secretions. It is undeniable that the root secretion collection device disclosed in the patent can indeed achieve the above-mentioned effects, but it still has certain shortcomings. The device can only collect root secretions when the plant grows roots and enters the lower cylinder to collect liquid, and cannot collect root secretions at different times; secondly, when the plant roots enter the lower cylinder, the holes in the roots will limit the growth direction and growth space of the roots, which will affect the natural growth state of the roots to a certain extent.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a plant root secretion collection device to solve the problems existing in the root secretion collection state in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A plant root secretion collection device, comprising:

[0008] Collection tube;

[0009] A planting tube is sleeved in the collecting tube, and a gap is left between the bottom wall of the planting tube and the bottom wall of the collecting tube, and between the side wall of the planting tube and the inner wall of the collecting tube; and connecting holes are evenly provided on the bottom wall and the side wall of the planting tube;

[0010] Circulation pool;

[0011] A first pump body, wherein the liquid inlet end of the first pump body is connected to the bottom of the collection tube through a hose, and the liquid outlet end of the first pump body is connected to the circulation pool through a hose;

[0012] The second pump body has a liquid inlet end connected to the circulation pool through a hose, and a liquid outlet end connected to the collection tube through a hose.

[0013] Preferably, a connecting sleeve is integrally formed at the top of the planting tube, and the connecting sleeve is threadedly connected to the collecting tube.

[0014] Preferably, a liquid infusion tube with a bottom end extending into the gap between the side wall of the planting tube and the inner wall of the collecting tube is fixed on the connecting sleeve; the liquid outlet end of the second pump body is connected to the top end of the liquid infusion tube through a hose.

[0015] Preferably, the bottom of the collecting tube is funnel-shaped; a drainage pipe connected to the interior of the collecting tube is fixed in the middle of the bottom of the collecting tube; the liquid inlet end of the first pump body is connected to the bottom end of the drainage pipe through a hose.

[0016] Preferably, the first pump body and the second pump body are peristaltic pumps.

[0017] Preferably, a supporting edge is fixed to the inner wall of the collecting tube at a position below the planting tube; a filter plate with filter holes is placed on the supporting edge.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model is provided with a plurality of components such as a collecting tube, a planting tube, a circulation pool and a pump body, and the specific structures of the collecting tube and the planting tube are designed, which can avoid affecting the growth space and growth direction of the roots of the plant seedlings to a certain extent, thereby being beneficial to the natural growth of the roots of the plant seedlings; at the same time, with the help of the circulation pool and the pump body, the circulation flow of the nutrient solution in the collecting and planting tubes can be realized, which is beneficial to the subsequent collection of the root secretions, and the root secretions can also be collected at different stages of the plant seedlings, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 for Figure 1 Main view;

[0022] Figure 3 for Figure 1 Cross-sectional view of the collection tube;

[0023] Figure 4 for Figure 3 Main view.

[0024] Description of main reference numerals:

[0025] 1. Collection tube; 11. Drain pipe; 12. Support edge; 2. Planting tube; 21. Connecting hole; 22. Connecting sleeve; 23. Infusion tube; 3. Circulation pool; 4. First pump body; 5. Second pump body; 6. Filter plate; 61. Filter hole. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example

[0028] See attached Figure 1-4 , a plant root secretion collection device, comprising:

[0029] Collection tube 1;

[0030] The planting tube 2 is sleeved in the collecting tube 1, and a gap is left between the bottom wall of the planting tube 2 and the bottom wall of the collecting tube 1, and between the side wall of the planting tube 2 and the inner wall of the collecting tube 1; connecting holes 21 are evenly provided on the bottom wall and the side wall of the planting tube 2; in this embodiment, a connecting sleeve 22 is integrally formed on the top of the planting tube 2, and the connecting sleeve 22 is threadedly connected to the collecting tube 1;

[0031] Circulation pool 3;

[0032] A first pump body 4, the liquid inlet end of the first pump body 4 is connected to the bottom of the collection tube 1 through a hose (not shown in the drawings), and the liquid outlet end of the first pump body 4 is connected to the circulation pool 3 through a hose (not shown in the drawings); specifically, the bottom of the collection tube 1 is funnel-shaped; a discharge pipe 11 connected to the inside of the collection tube 1 is fixed at the middle position of the bottom; the liquid inlet end of the first pump body 4 is connected to the bottom end of the discharge pipe 11 through a hose;

[0033] The second pump body 5, the liquid inlet end of the second pump body 5 is connected to the circulation pool 3 through a hose (not shown in the drawings), and the liquid outlet end is connected to the collection tube 1 through a hose (not shown in the drawings); specifically, a liquid infusion tube 23 with a bottom end extending into the gap between the side wall of the planting tube 2 and the inner wall of the collection tube 1 is fixed on the connecting sleeve 22; the liquid outlet end of the second pump body 5 is connected to the top end of the liquid infusion tube 23 through a hose.

[0034] In this embodiment, the first pump body 4 and the second pump body 5 are peristaltic pumps.

[0035] In addition, in this embodiment, a support edge 12 is fixed to the inner wall of the collecting tube 1 at a position below the bottom of the planting tube 2 ; a filter plate 6 with filter holes 61 is placed on the support edge 12 .

[0036] The plant culture matrix is ​​filled in the planting tube 2, and the cultivated plant seedlings are cleaned, sterilized and then planted in the middle position of the planting tube 2. Since the plant seedlings are planted in the middle position of the planting tube 2, there is a certain distance between the root system of the plant seedlings and the side wall and the bottom wall of the planting tube 2, which can avoid the cylinder wall of the planting tube 2 from affecting the growth space of the root system of the plant seedlings to a certain extent. In addition, it should be noted that the connecting holes 21 on the side wall and the bottom wall of the planting tube 2 are relatively small, which can avoid the plant roots passing through the connecting holes 21 to a certain extent. Restriction on the direction of the roots. It can be seen from the above that the device of the utility model can maintain the natural growth of the root system of the plant seedlings to a certain extent.

[0037] The plant seedling nutrient solution is injected into the circulation pool 3, and the second pump body 5 is started. The second pump body 5 extracts the nutrient solution in the circulation pool 3 and pumps it into the infusion tube 23. The nutrient solution enters the collection tube 1 through the infusion tube 23 and enters the planting tube through the connecting hole 21 on the planting tube 2, thereby providing nutrients for the growth of the plant seedlings. At the same time, the root secretions produced by the root system of the plant seedlings will also dissolve in the nutrient solution entering the planting tube 2. The first pump body 4 is turned on, and the first pump body 4 extracts the nutrient solution in the collection tube 1 from the drainage tube 11 and pumps it into the circulation pool 3, and the root secretions will be pumped into the circulation pool 3 together with the nutrient solution. It should be noted here that a through hole (not shown in the drawings) is provided on the circulation pool 3 so that the pressure in the circulation pool 3 is consistent with that outside. In addition, when only the second pump body 5 is working, the nutrient solution will always enter the collection tube 1 and fill the collection tube 1; and when only the first pump body 4 is working, the nutrient solution in the collection tube 1 and the planting tube 2 will always be pumped into the circulation pool 3. During actual use, the first pump body 4 and the second pump body 5 are turned on at the same time, and their working speeds are controlled respectively, so as to control the amount of nutrient solution entering and being discharged from the collecting tube 1, and at the same time realize the circulation of the nutrient solution, which is beneficial to the subsequent collection of root secretions.

[0038] When it is necessary to collect root secretions, the nutrient solution is controlled to circulate for a certain period of time, and then the second pump body 5 is turned off, so that the first pump body 4 can extract the nutrient solution in the collection tube 1 and the planting tube 2 and pump it into the circulation pool 3. Through this design, root secretions can be collected at different stages of plant seedlings, and the operation is simple.

[0039] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A plant root secretion collection device, characterized in that: include: Collection tube; A planting tube is sleeved in the collecting tube, and a gap is left between the bottom wall of the planting tube and the bottom wall of the collecting tube, and between the side wall of the planting tube and the inner wall of the collecting tube; and connecting holes are evenly provided on the bottom wall and the side wall of the planting tube; Circulation pool; A first pump body, wherein the liquid inlet end of the first pump body is connected to the bottom of the collection tube through a hose, and the liquid outlet end of the first pump body is connected to the circulation pool through a hose; The second pump body has a liquid inlet end connected to the circulation pool through a hose, and a liquid outlet end connected to the collection tube through a hose.

2. The root exudate collection device according to claim 1, characterized in that: A connecting sleeve is integrally formed on the top of the planting tube, and the connecting sleeve is threadedly connected to the collecting tube.

3. The root exudate collection device according to claim 2, characterized in that: A liquid infusion tube with a bottom end extending into the gap between the side wall of the planting tube and the inner wall of the collecting tube is fixed on the connecting sleeve; the liquid outlet end of the second pump body is connected to the top end of the liquid infusion tube through a hose.

4. The root exudate collection device according to claim 1, characterized in that: The bottom of the collecting tube is funnel-shaped; a drainage pipe connected to the interior of the collecting tube is fixed in the middle of the bottom of the collecting tube; the liquid inlet end of the first pump body is connected to the bottom end of the drainage pipe through a hose.

5. The root exudate collection device according to claim 1, characterized in that: The first pump body and the second pump body are peristaltic pumps.

6. The root exudate collection device according to claim 1, characterized in that: A supporting edge is fixed on the inner wall of the collecting tube at a position below the planting tube; a filter plate with filter holes is placed on the supporting edge.

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