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Portable analysis system for measuring photosynthesis of plants in field in real time

An analysis system and real-time measurement technology, which can be used in the fields of testing plants/trees, analyzing materials, analyzing gas mixtures, etc., and can solve the problems of inability to have uniform air in the leaf chamber, unable to measure leaves, and not suitable for high-precision measurement of a single leaf.

Pending Publication Date: 2021-07-02
HUNAN HYBRID RICE RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the invention uses a fan to circulate the self-made leaf chamber, it cannot make the air in the leaf chamber uniform and cannot measure blades with different angles. The size of the leaf chamber cannot be adjusted with the size of the blade, and it is not suitable for high-precision measurement of a single blade.
[0012] It can be seen that neither the measurement method using the classic Licor-6800 photosynthetic measuring instrument or a similar improved device, nor the existing real-time online large-area photosynthetic method can meet the requirements of accurately measuring the photosynthesis produced by a single leaf in different growth directions (angles). The purpose of the intensity of photosynthesis, and the stability of carbon dioxide concentration cannot be guaranteed during the long-term measurement process

Method used

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  • Portable analysis system for measuring photosynthesis of plants in field in real time

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Example 1: Method for detecting photosynthesis based on rice blades in real time using any of the above analysis systems

[0034] First open the seal 2, select the rice blades or whole rice plants in organic glass 1, and the organic glass 1 and the seal 2 merges to form an external circulating leaf chamber 3, the external circulation leaf chamber 3 passes through the three-way valve 15 through the organic The hose 16 is in communication with the carbon dioxide absorbing tank 11, and the carbon dioxide absorption tank 11 is connected to the circulating pump 4 through the three-way valve 17, and the external circulating leaf chamber 3 communicates with the circulating pump 4 through the organic hose 5 and the circulating pump 4. The leaf chamber 3 is fixed to the multi-angle fixing frame 6 by the metal strut 7, and the carbon dioxide concentration detection probe 8 is placed in an external circulating leaf chamber 3, and the carbon dioxide concentration detection probe 8 is c...

Embodiment 2

[0035] Example 2: Method for detecting photosynthesis in real-time detection of rice blades in real time using short-time analysis systems

[0036] First, the seal 2 is opened, and the rice blades or whole rice is selected into the organic glass 1, and the organic glass 1 and the sealing ring are combined with the external circulation leaf chamber 3, the external circulation leaf chamber 3 is three-way valve 15 and three The passage valve 17 is coupled to the circulating pump 4 through the organic hose 5 and the circulating pump 4 via the three-way electronic control valve 14, and the external circulating leaf chamber 3 is fixed to the multi-angle fixing frame 6 by the metal strut 7, carbon dioxide concentration detection The probe 8 is placed in an external circulating leaf chamber 3, and the carbon dioxide concentration detection probe 8 is in communication with the carbon dioxide detector 10, open the carbon dioxide detector 10, and turn off the three-way electronic control val...

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Abstract

The invention relates to a portable analysis system for measuring photosynthesis of plants in field in real time, which is composed of an external circulating leaf chamber, a carbon dioxide absorption cell, a circulating pump, a carbon dioxide concentration detector, a carbon dioxide storage tank and a multi-angle fixing frame, and the external circulating leaf chamber is fixed on the multi-angle fixing frame; the carbon dioxide storage tank, the carbon dioxide absorption cell and the circulating pump are communicated with the external circulating leaf chamber through organic hoses and valves, and the carbon dioxide concentration detector is arranged in the external circulating leaf chamber. According to the system, the carbon dioxide concentration in the leaf chamber can be completely the same, non-uniform carbon dioxide concentration caused by photosynthesis in the leaf chamber is avoided, feasibility is provided for an experiment for measuring the photosynthetic intensity of a whole plant or a single leaf for a long time, meanwhile, the temperature rise of the closed environment of the leaf chamber can be effectively slowed down, and the stability of the environment humidity is effectively maintained.

Description

Technical field [0001] It belongs to the field of plant photosynthetic testing, and more particularly to a parallel analysis system for determination of plant photosynthesis in the wild. Background technique [0002] At present, there are portable photosynthes such as Licor-6800, LCI-SD, CIRAS-3 in the market, providing photosynthetic measurement techniques for plant ecology research. Such photosynthes are compared to indoor control experiments, however, during field experiments, due to the dispensing air pipelines and the outside world, it is easy to receive uneven inlet and outlet, which is easy to subjected to unevenness, and measuring plants. The leaf chamber of the blade is too small and the growth angle of the plant blades directly affects the accuracy of plant photosynthesis. [0003] China Patent Application No. 201310682081.3, inventive name "Substitute seedlings, rapid rate rapid measurement device", disclosed, rapid measurement device and method, including plant photos...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/004G01N33/0098
Inventor 常硕其朱新广欧阳翔
Owner HUNAN HYBRID RICE RES CENT
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