Multi-leaf-chamber dynamic photosynthesis system

A leaf clip and leaf technology, applied in the field of plant photosynthesis and water physiology measurement, can solve the problems of many influencing factors, inability to continuously measure for a long time, and inaccuracy.

Inactive Publication Date: 2016-06-15
YI ZONG QI TECH BEIJING CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure is to use the sampling air pipe and the electromagnetic valve to switch the water passing through the leaves and not passing through the leaves in time. Its disadvantage is that because it is a closed system, it cannot be measured continuously for a long time, and can only be measured instantaneously. It can only understand the photosynthesis, The transpiration rate is also the measurement of a single leaf. Due to the instantaneous measurement, there are many influencing factors, so the measurement error is relatively large. In the end, it is not easy to calculate the photosynthesis and transpiration within one day.
[0003] If the above-mentioned portable measurement device needs long-term continuous measurement, a temperature control system needs to be added. If the temperature control is not suitable, there will be water loss, which will have a great impact on the measurement; High, high maintenance cost
[0004] The traditional method has a low level of automation, high labor intensity, and the measurement data is incomplete, which requires statistics and is inaccurate
[0005] There are not many domestic devices, and the cost of foreign instrument measuring devices is high, and repair and maintenance are inconvenient

Method used

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Embodiment Construction

[0011] In order to describe structure, characteristic and effect of the present invention in detail, semi-open, multi-leaf continuous photosynthesis, transpiration measuring method are described in detail as follows:

[0012] (1) Without the CO2 and moisture measurement process of the leaves:

[0013] The semi-open leaf clamp clamps the blade. When it is fully clamped, the leaf area A is known, and the volume V of the entire cavity of the leaf clamp is known. The host controller controls the start of the air pump and switches the solenoid valve to the reference air. Channel (that is, the channel that does not pass through the leaves), after a period of time t0, the CO2 sensor gives the result C0, and the moisture sensor gives the result RH0. This value is collected and stored by the host for the following calculation.

[0014] (2) CO2 and water process through leaves:

[0015] When the moisture measurement that has not passed through the blade is finished, the host controller...

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Abstract

The present invention discloses a multi-leaf-chamber dynamic photosynthesis system leaf clip structure and measurement method, a sounding sampling measurement method is used as a measuring principle, the multi-leaf-chamber dynamic photosynthesis system leaf clip structure comprises a leaf clip array A and a host controller B, and is characterized in that the multi-leaf-chamber dynamic photosynthesis system leaf clip structure is a semi-open leaf clip structure, and is simple and is capable of continuously monitoring, and power consumption of the whole system is reduced.

Description

technical field [0001] The invention belongs to the field of plant photosynthesis and water physiological measurement, in particular to a semi-open device for continuously monitoring the photosynthesis and transpiration rates of multiple leaves. Background technique [0002] At present, in the field of plant photosynthesis and water physiology measurement, the most widely used method for measuring leaf photosynthesis and transpiration is the portable photosynthesis and transpiration measurement device. This device follows the traditional method of using a closed leaf clip. Sealed by other transparent objects, in an unnatural state, the environmental factors can only be measured by man-made control. The structure is to use the sampling air pipe and the electromagnetic valve to switch the water passing through the leaves and not passing through the leaves in time. Its disadvantage is that because it is a closed system, it cannot be measured continuously for a long time, and ca...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N21/84
Inventor郑国明符金花
OwnerYI ZONG QI TECH BEIJING CO LTD