A dark-adapted apparatus for measuring plant chlorophyll fluorescence.

Abstract

To provide a dark adaptation device for measuring chlorophyll fluorescence of plants, which can be adapted to leaves of different shapes and sizes, does not damage the leaves, is made of lightweight materials, and is easy to install. The dark-adaptable cloth bag comprises a dark-adaptable cloth bag 1, a support 2, a sealing strip 3, a fixing strip 4, and a fastener 5. The dark-adaptable cloth bag is made of a wrinkled cloth, with an outer layer of tin foil and an inner layer of black flannel. The dark-adaptable cloth bag is stretched to expand its volume. A support fixing passage is provided inside the dark-adaptable cloth bag, and the support is made of a PP plastic strip. The support passes through the support fixing passage to support the dark-adaptable cloth bag. Fasteners are drilled on both ends of the support, which allow the fasteners to be moved to control the support's size. The sealing strip is located at the opening of the dark-adaptable cloth bag to seal the opening. The fixing strips are fixed on both ends of the support, and the support is fixed to the trunk of the plant using the fixing strips.

Description

[Technical Field]

[0001] The present invention relates to a dark-adapted device for measuring the chlorophyll fluorescence of living plants, and more particularly to a dark-adapted device for measuring the chlorophyll fluorescence of living plants. [Background technology]

[0002] Leaves are important plant organs that perform photosynthesis and synthesize organic matter. Chlorophyll fluorescence, a probe used in photosynthesis research, reflects the initial reaction processes of photosynthesis, such as light energy absorption, excitation energy transfer, and photochemical reactions. It is closely related to processes such as electron transport, ATP synthesis, and CO2 fixation. It has been widely applied in plant photosynthesis, plant stress physiology, aquatic biology, and remote sensing. Particularly in the context of global climate change, chlorophyll fluorescence measurements play an important role in clarifying the response principles of plants to rising temperatures, changing precipitation patterns, and nitrogen deposition. Currently, dark-adapted devices for chlorophyll fluorescence measurements are divided into two types: the hard paper clip and the plastic container. These two types of devices cannot be properly adjusted according to the characteristics of plant leaves during use, and their heavy weight can easily tear the petiole, damaging the leaf structure.

[0003] To date, there has been no professional dark adaptation device for measuring chlorophyll fluorescence that is convenient and does not damage leaves. To address this issue, a dark adaptation device for measuring plant chlorophyll fluorescence has been devised. This device can adapt to the dark adaptation of leaves of different plants, ensure the integrity of leaf structure, and has the advantages of low cost, strong practicability, and ease of use. Summary of the Invention [Problem to be solved by the invention]

[0004] The purpose of this invention is to provide a dark adaptation device for measuring chlorophyll fluorescence in vivo in plants, which effectively meets the leaf's dark environment requirements without damaging the plant leaves, enables the entire dark adaptation process for chlorophyll fluorescence measurement to be completed simply and efficiently, and enables accurate measurements to be achieved for research on photosynthesis. [Means for solving the problem]

[0005] To solve the above technical problems, the present invention adopts the following technical solutions.

[0006] The dark adaptation device for measuring plant chlorophyll fluorescence comprises a dark adaptation cloth bag, a support, a sealing band, a fixing band, and a fastener. The dark adaptation cloth bag is made of wrinkled cloth, and a support fixing passage is provided inside the dark adaptation cloth bag. The support is made of a plastic strip made of PP material, and the support passes through the support fixing passage to support the dark adaptation cloth bag. The fasteners are drilled on both ends of the support, thereby moving the fasteners to control the range of the support. The sealing band is located at the opening of the dark adaptation cloth bag to seal the opening, and the fixing bands are fixed on both ends of the support.

[0007] Furthermore, the crinkled cloth is made of an outer layer of tin foil and an inner layer of black flannel, stretching the dark adaptive cloth bag and increasing the volume within the dark adaptive cloth bag.

[0008] Furthermore, both the sealing strip and the fixing strip are double-sided adhesive tapes. [Effects of the Invention]

[0009] The present invention has the following beneficial effects:

[0010] By adjusting the length of the dark-adapted cloth bag according to the size of the leaf, it can accommodate leaves of different shapes and sizes. The device can be fixed to the trunk of the plant using a fixing strap without damaging the leaves. The material is lightweight, making installation easy and reducing costs. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic diagram of the present invention. [Figure 2] FIG. 2 is a cross-sectional view of the dark adaptive cloth bag of the present invention. [Figure 3] FIG. 3 is a structural diagram of the dark adaptive cloth bag of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] We will now describe in detail exemplary embodiments of the present invention with reference to the drawings, which may be embodied in a variety of different embodiments as limited and encompassed by the claims.

[0013] As shown in the drawing, the dark adaptation device for measuring plant chlorophyll fluorescence comprises a dark adaptation cloth bag 1, a support 2, a sealing strip 3, a fixing strip 4, and a fastener 5. The dark adaptation cloth bag 1 is made of a wrinkled cloth, which has an outer layer of tin foil 51 and an inner layer of black flannelette 52. During processing in the factory, a mold is used to press the outer layer of tin foil 51 and the inner layer of black flannelette 52 together to form a tight seal. The dark adaptation cloth bag 1 is stretched to expand its volume. A support fixing passage 11 is provided inside the dark adaptation cloth bag 1, and the support 2 is made of a plastic strip made of PP material. The support 2 passes through the support fixing passage 11 to support the dark adaptation cloth bag 1. Fasteners 5 are drilled on both ends of the support 1, which can be moved to control the size of the support 2. The sealing strip 3 is located at the opening of the dark adaptation cloth bag 1 to seal it, and the fixing strips 4 are fixed on both ends of the support 2. Preferably, both the sealing strip 3 and the fixing strip 4 are double-sided adhesive tapes. The device is made of lightweight material and will not damage the leaves.

[0014] The size of the support 2 is controlled by adjusting the position of the fastener 5, and the volume inside the dark-adapted cloth bag 1 is controlled by extending the length of the dark-adapted cloth bag 1. The size of the support 2 and the size of the dark-adapted cloth bag 1 can be adjusted according to the size of the leaf, making it suitable for various types of leaves. Sealing the dark-adapted cloth bag 1 with the sealing strap 3 provides a good sealing effect and ensures the reliability of the experimental results. The device is fixed to the trunk of the plant using the fixing strap 4. A thick trunk should be selected to avoid damaging the plant, and the fixing strap 4 should be long enough so that it can be wrapped around the trunk and firmly fixed.

[0015] The above-described embodiments of the present invention do not limit the protection scope of the present invention, and any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be included in the claims of the present invention. [Explanation of symbols]

[0016] 1 - dark adaptation cloth bag; 2 - support; 3 - sealing band; 4 - fixing band; 5 - fastener; 51 - outer layer of tin foil; 52 - inner layer of black flannel

Claims

1. A dark adaptive cloth bag, a support, a sealing band, a fixing band, and a fastener are provided; The dark-adapted cloth bag is made of a crumpled cloth, and a support fixing passage is provided inside the dark-adapted cloth bag. The support is made of a PP plastic strip, and the support passes through the support fixing passage to support the dark-adapted cloth bag. The fasteners are drilled at both ends of the support, thereby moving the fasteners to control the range of the support. The sealing belt is located at the opening of the dark-adapted cloth bag to seal the opening. The fixing belts are fixed on both ends of the support, and the fixing belts are used to fix the support to the trunk of the plant. A dark-adapted device for measuring chlorophyll fluorescence in plants.

2. The wrinkled cloth is made of tin foil as an outer layer and black flannel as an inner layer, and the dark adaptive cloth bag is stretched to expand the volume inside the dark adaptive cloth bag.

2. The dark-adapted device for measuring chlorophyll fluorescence in plants according to claim 1.

3. 2. The dark adaptation device for measuring chlorophyll fluorescence in plants according to claim 1, wherein the sealing band and the fixing band are both double-sided adhesive tapes.

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