CN111903383A - Test device and method for researching root system competition strategy - Google Patents

Abstract

The invention discloses a test device and a method for researching root system competition strategies, the test device comprises a barrel, more than one shell and an annular shell, the shells are all arranged in the barrel, the annular shell is arranged in an opening of the barrel, more than one through hole communicated with the shell is arranged on the bottom surface of the annular shell, sliding grooves are vertically arranged on the inner wall surface of the barrel opposite to the shells, strip-shaped openings communicated with the outside are arranged on the outer side surfaces of the sliding grooves, sliding blocks are arranged on the shells opposite to the sliding grooves, one ends of the sliding blocks are all slidably arranged in the sliding grooves, fixing mechanisms for locking the sliding blocks are arranged on the outer sides of the sliding blocks, cover bodies are arranged on the outer rings of the annular shell, and the cover bodies are sleeved outside. The invention has simple structure, can directly see the growth condition of the internal root system through the cylinder, the shell and the annular shell, and the root system can sense the change after the environment changes after changing the height of the shell storing different nutrient culture mediums and rotating the annular shell.

Description

Test device and method for researching root system competition strategy

Technical Field

The invention relates to the technical field of plant root system competition, in particular to a test device and a method for researching a root system competition strategy.

Background

Since plants cannot move freely in the natural environment like animals, the plants are continuously subjected to competition of intraspecies and interspecies common environmental resources throughout the life cycle. Therefore, competition exists in all plant communities, and is one of the main driving forces for determining plant morphology, life history and plant community structure and dynamics. Compared with the competition of the above-ground part for light only, the competition of the underground part relates to the competition of soil resources such as water, minerals and the like.

However, since the root system grows underground and the growth rule changes complicatedly, the observation of the root system in the traditional scientific research process is difficult, and the competition strategy of the plant root system in the soil is difficult to be effectively researched and revealed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a test device and a method for researching a root system competition strategy so as to solve the problems in the background technology.

The invention is realized by the following technical scheme: the utility model provides a test device for studying root system competition strategy, includes barrel, more than one casing and annular shell, the casing all sets up in the barrel, the annular shell sets up in the opening of barrel, be equipped with the through-hole of more than one and casing intercommunication on the bottom surface of annular shell, the internal face of barrel is just being equipped with the spout to the equal perpendicular of casing department, all be equipped with the bar mouth with outside intercommunication on the lateral surface of spout, the slider is just all installed to spout department to the casing, the equal slidable mounting of slider one end is in the spout, the fixed establishment of locking slider is all installed in the outside of slider, the cover body is all installed to the outer lane of annular shell, the barrel outside is located to the cover body.

As the preferred technical scheme, the fixing mechanism comprises the stud, the clamping plate and the rotating plate, the outer side face of the sliding block is provided with the screw hole, one end of the stud is connected with the screw hole in a threaded mode, the other end of the stud penetrates through the strip-shaped opening and extends to the outside, the clamping plate is installed at one end, located at the outside, of the stud, the rotating plate is installed on the outer side face of the clamping plate, and the inner side face of the clamping plate is abutted to the outer face of the barrel.

As the preferred technical scheme, an annular groove is arranged on the outer wall surface of the opening at the upper end of the cylinder body, a rubber ring is arranged in the annular groove, and the outer wall surface of the rubber ring is abutted against the inner wall surface of the cover body.

As preferred technical scheme, the casing is annular structure evenly distributed, and the casing all is fan-shaped structure setting.

As a preferable technical scheme, more than one holding rod is arranged on the outer ring surface of the cover body.

The invention also provides a test method of the test device, which comprises the following steps:

s1, placing soil in the annular shell, and placing culture mediums with different nutrients in the shell;

s2, planting the plant seeds in the soil in an annular structure, and observing and recording the growth state of the plant root system;

s3, after a period of time, continuously observing and recording the growth state of the plant root system by adjusting the height of the shell or the position of the annular shell; specifically, the method comprises the following steps:

adjusting the height of the shell: the shell is enabled to move up and down along the sliding groove, the rotating plate is rotated after the height is determined until the clamping plate is clamped and fixed on the cylinder, and whether the sensing capability of the root system can know that the depth of the root system changes or not after the height of the culture medium is changed can be known through the operation, so that the root system is spread;

adjusting the position of the annular shell: the annular shell is lifted upwards to pull the root system out of the culture medium, then the annular shell is rotated to change the position of the plant, and through the operation, whether the root system of the plant can chase the culture medium with high nutrients or survive through the medium with low nutrients after the plant is interrupted for a period of time.

The invention has the beneficial effects that: the invention has simple structure, can directly see the growth condition of the internal root system through the cylinder, the shell and the annular shell, and the root system can sense the change after the environment changes after changing the height of the shell storing different nutrient culture mediums and rotating the annular shell.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial cross-sectional view taken at a-a in fig. 1.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the test device for researching root system competition strategies of the invention comprises a barrel 14, more than one shell 15 and an annular shell 1, wherein the shells 15 are all arranged in the barrel 14, the annular shell 1 is arranged in an opening of the barrel 14, more than one through hole 3 communicated with the shell 15 is arranged on the bottom surface of the annular shell 1, sliding grooves 13 are vertically arranged on the inner wall surface of the barrel 14 opposite to the shell 15, strip-shaped openings 12 communicated with the outside are arranged on the outer side surface of the sliding grooves 13, sliding blocks 11 are arranged on the shell 15 opposite to the sliding grooves, one ends of the sliding blocks 11 are slidably arranged in the sliding grooves 13, fixing mechanisms for locking the sliding blocks 11 are arranged on the outer sides of the sliding blocks 11, cover bodies 4 are arranged on the outer rings of the annular shell 1, and the cover bodies 4 are sleeved outside the.

In this embodiment, the fixing mechanism includes a stud 8, a clamping plate 10 and a rotating plate 9, a screw hole 7 is provided on the outer side surface of the slider 11, one end of the stud 8 is connected with the screw hole 7 in a threaded manner, the other end of the stud 8 passes through the strip-shaped opening 12 and extends to the outside, the clamping plate 10 is installed on one end of the stud 8 located outside, the rotating plate 9 is installed on the outer side surface of the clamping plate 10, and the inner side surface of the clamping plate 10 is abutted to the outer surface of the barrel 14.

In this embodiment, an annular groove is formed in the outer wall surface of the opening at the upper end of the cylinder 14, the rubber ring 6 is installed in the annular groove, and the outer wall surface of the rubber ring 6 abuts against the inner wall surface of the cover 4, so that friction between the cover and the cylinder is increased, and stability is improved.

In this embodiment, the shells 5 are uniformly distributed in an annular structure, and the shells 5 are all arranged in a fan-shaped structure, so that a ring is just formed by the shells.

In this embodiment, more than one holding rod 5 is installed on the outer ring surface of the cover body 4, and the cover body is convenient to move and rotate through the holding rods.

The barrel, the shell, the annular shell, the cover body, the studs, the clamping plates and the rotating plate are all made of transparent plastic materials, so that the growth condition of the internal root system can be seen through the components.

During the use, put into soil in the annular shell, and put into the culture medium of different nutrients in the casing, be the annular structure again with plant seed and plant in soil, because the nutrient of the culture medium that the seed below corresponds is different, consequently at the growth in-process of plant roots, can know whether the root system has the condition of perception nutrient for distant root system also extends to in the casing that has high nutrient along the through-hole.

After the culture medium is continuously used for a period of time, the height of the shell is adjusted to enable the shell to move up and down along the sliding groove, after the height is determined, the rotating plate is rotated, the rotating plate drives the clamping plate and the stud until the clamping plate is clamped and fixed on the cylinder, so that the shell is effectively fixed, and whether the sensing capability of the root system can know that the depth of the root system is changed or not can be known after the height of the culture medium is changed can be known through the operation, so that the root system is spread;

wherein, also can lift the annular shell upwards, make the root system extract from culture medium, rotate the annular shell again, make the position of plant change, can know through above operation after growing a period of time and interrupted, whether the root system of plant still can chase after the culture medium of high nutrition, still survive through the medium of low nutrition earlier.

Wherein, the culture medium is in order to enable the better growth of root system, and general structure is comparatively soft, consequently can not cause the large tracts of land fracture of root system when extracting.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (6)

1. The utility model provides a test device for studying root system competition strategy which characterized in that: including barrel (14), more than one casing (15) and annular shell (1), casing (15) all set up in barrel (14), annular shell (1) sets up in the opening of barrel (14), be equipped with more than one through-hole (3) with casing (15) intercommunication on the bottom surface of annular shell (1), the internal face of barrel (14) is just being located all perpendicular spout (13) to casing (15), all be equipped with on the lateral surface of spout (13) with bar mouth (12) of outside intercommunication, slider (11) are just all installed to spout department in casing (15), slider (11) one end is all slidable mounting in spout (13), the fixed establishment of locking slider (11) is all installed in the outside of slider (11), the cover body (4) are all installed to the outer lane of annular shell (1), barrel (14) outside is located to cover body (4) cover.

2. A test device for studying root competition strategies as claimed in claim 1, characterized in that: fixing mechanism all includes double-screw bolt (8), splint (10) and rotor plate (9), all be equipped with screw hole (7) on the lateral surface of slider (11), in the equal threaded connection of double-screw bolt (8) one end and screw hole (7), the double-screw bolt (8) other end all passes bar mouth (12) and extends to the external world, splint (10) are all installed in one of double-screw bolt (8) position in the external world and are served, rotor plate (9) are all installed on the lateral surface of splint (10), splint (10) medial surface all offsets with the outside face of barrel (14).

3. A test device for studying root competition strategies as claimed in claim 1, characterized in that: an annular groove is arranged on the outer wall surface of the opening at the upper end of the cylinder body (14), a rubber ring (6) is arranged in the annular groove, and the outer wall surface of the rubber ring (6) is abutted against the inner wall surface of the cover body (4).

4. A test device for studying root competition strategies as claimed in claim 1, characterized in that: the shells (5) are uniformly distributed in an annular structure, and the shells (5) are all arranged in a fan-shaped structure.

5. A test device for studying root competition strategies as claimed in claim 1, characterized in that: more than one holding rod (5) is arranged on the outer ring surface of the cover body (4).

6. The test method of the test device according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:

s1, placing soil in the annular shell, and placing culture mediums with different nutrients in the shell;

s2, planting the plant seeds in the soil in an annular structure, and observing and recording the growth state of the plant root system;

s3, after a period of time, continuously observing and recording the growth state of the plant root system by adjusting the height of the shell or the position of the annular shell; specifically, the method comprises the following steps:

adjusting the height of the shell: the shell is enabled to move up and down along the sliding groove, the rotating plate is rotated after the height is determined until the clamping plate is clamped and fixed on the cylinder, and whether the sensing capability of the root system can know that the depth of the root system changes or not after the height of the culture medium is changed can be known through the operation, so that the root system is spread;

adjusting the position of the annular shell: the annular shell is lifted upwards to pull the root system out of the culture medium, then the annular shell is rotated to change the position of the plant, and through the operation, whether the root system of the plant can chase the culture medium with high nutrients or survive through the medium with low nutrients after the plant is interrupted for a period of time.

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