Plant leaf resistance distribution measurement method and application thereof

A plant leaf and resistance technology, applied in the field of agricultural applications, can solve the problems of unsuitable plant leaf observation, no breakthroughs, no technical products, etc., and achieve the effects of easy popularization, simple measurement methods, and precise irrigation.

Inactive Publication Date: 2017-01-11
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to measure it in vivo; the change of plant stem sap flow and stem xylem water column breakage during water shortage and the change of stem diameter are widely studied as the information of plant water demand
However, these methods are complicated to measure and have large e...

Method used

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  • Plant leaf resistance distribution measurement method and application thereof
  • Plant leaf resistance distribution measurement method and application thereof
  • Plant leaf resistance distribution measurement method and application thereof

Examples

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Embodiment

[0052] The microelectrode array in this embodiment is a copper electrode array made on a PCB. The area of ​​the two electrode plates is 7cm×10cm. The number of electrodes on the electrode plates is 40. The plant leaves to be measured are potted plant swallows. palm.

[0053] The method of the present invention is used to measure the tissue resistance distribution of a part of the Swallow palm blade, and the size of the black dot is used to represent the tissue resistance of the blade at the measurement point, and the smaller the black dot, the smaller the resistance. Figure 5 is the resistance distribution of a part of the tissue in the normal growth of the swallow palm leaf, which is determined by Figure 5 It can be seen that the resistance of different parts of the leaf is different, the resistance of the vein part is small, the resistance distribution of the mesophyll part is large, and the resistance of the mesophyll part is not uniform.

[0054] Figure 6 It is the ti...

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Abstract

The invention discloses a plant leaf resistance distribution measurement method which specifically comprises the following steps: two microelectrode array boards are manufactured, a plant leaf is clamped between the two microelectrode array boards, a voltage is applied on an electrode wire on one of the microelectrode array boards or a current let into the electrode wire on one of the microelectrode array boards, corresponding electric response signals are collected on an electrode wire on the other of the microelectrode array boards, and the collected electric response signals are processed; a resistance value of an point, where the electrode wires of the two microelectrode array boards intersects, of the leaf is obtained; dot matrix distribution of leaf resistance can be further obtained; the invention also discloses application of the above method. According to the plant leaf resistance distribution measurement method and the application thereof, plant leaf resistance distribution can be obtained via microelectrode arrays, tissue and cells can be prevented from damage, accurate measurement can be realized, a plant water depletion degree can be sensitively and accurately determined, and plants can be timely and precisely irrigated in a convenient manner; on-site measurement of leaf resistance distribution, water depletion conditions and a function state can be realized; the method is simple and convenient and is easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of agricultural applications, and relates to a method for measuring the resistance distribution of plant blades, and also relates to the application of the above method. Background technique [0002] Plant leaf tissue is composed of various cells of different shapes and a large number, which can be divided into the apoplast composed of the cell wall and interstitium of each cell and the coplasma composed of the protoplasm of adjacent cells run through by plasmodesmata body. Both the apoplast and the symplast have resistance, and their resistance and its changes are related to the functional state of the cell and the regulation of cell metabolism. Measuring and analyzing the resistance information of plant leaves is very important for the study of the functional state of plants, stress resistance evaluation, environmental monitoring and intelligence. Many areas such as new agricultural technologies are of gr...

Claims

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Application Information

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IPC IPC(8): G01R27/14
CPCG01R27/14
Inventor 余宁梅马珂路伟习岗周华坤李可人
Owner XIAN UNIV OF TECH
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