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A method for measuring the maximum physiological capacitance and maximum tension of plant leaves

A technology of physiological capacitance and plant leaves, which is applied in the field of plant physiological information detection, can solve the problems of the maximum physiological capacitance of plant leaves measured by the instrument, and achieve the effects of small plant damage, sensitive results, and high accuracy

Active Publication Date: 2019-06-28
JIANGSU UNIV
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Problems solved by technology

[0004] The invention provides a method for measuring the maximum capacitance and the maximum tension of plant leaves, which solves the problem that the state where the solute concentration of the cell fluid is 0 does not exist in actual conditions, and it is difficult to directly measure the maximum physiological capacitance and maximum tension of plant leaves with instruments. The problem of tension provides a reference for the study of water changes in plant cells by using plant leaf physiological capacitance or leaf tension

Method used

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  • A method for measuring the maximum physiological capacitance and maximum tension of plant leaves
  • A method for measuring the maximum physiological capacitance and maximum tension of plant leaves
  • A method for measuring the maximum physiological capacitance and maximum tension of plant leaves

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Embodiment

[0035] The okra was taken as the research material, and the varieties were red okra and green okra; the okra seeds were germinated in 12-hole plug trays in the laboratory, and Hoagland's culture medium was prepared to cultivate the seedlings to the 3-leaf stage. Seedlings are used as plant seedlings under investigation; add equal amounts of NaCl and CaCl 2 Into the Hoagland culture medium, prepare culture medium with different salinity levels (expressed by the conductivity of the culture medium), as shown in Table 1.

[0036] Table 1 Different salinity levels

[0037]

[0038] The above-mentioned 3-leaf stage seedlings of the investigated plants were simultaneously cultivated with culture solutions of different salinity levels, and new corresponding culture solutions were replaced every day. The first expanded leaf was used as the object of investigation. In the morning of the 21st day of cultivation, From 9:00 to 11:00, the leaf water potential W and physiological capacit...

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Abstract

The invention discloses a method for measuring the maximum physiological capacitance and the maximum tensity of a plant leaf, and belongs to the technical field of detection on physiological information of a plant. According to the method, in different salinity levels, a set of relationship models between the physiological capacitance of the plant leaf and the salinity level and between the tensity of the plant leaf and the salinity level are established; exponential decay equations of two parameters are used for fitting relationships between correlated electrophysiological indexes and the salinity level to obtain corresponding expressions, and according to the expressions, the maximum physiological capacitance and the maximum tensity of the plant leaf are obtained. By a physical method, the damage to the plant is small, a result is sensitive, the accuracy is high, the physiological capacitance and the tensity of the living plant can be truly reflected, and the problem that the physiological capacitance and the tensity of the plant leaf are difficultly measured directly by an instrument because a zero solute concentration state of a cell fluid does not exist in actual situation is solved.

Description

technical field [0001] The invention belongs to the technical field of plant physiological information detection, and in particular relates to a method for measuring the maximum physiological capacitance and maximum tension of plant leaves. Background technique [0002] At present, great progress has been made in the detection of plant electrophysiological information. People are trying to use the changes of plant tissue electrical parameters to reflect the macroscopic and microscopic structural changes of plants and characterize the process of plant life activities. Plants belong to living organisms, which are dielectrics between conductors and insulators, and have specific capacitance values ​​under the action of an external electric field. Water is an essential component for various physiological activities and enzymatic reactions in plant life cycle activities. The life activities of plants are inseparable from the participation of water. When plant leaf cells lose wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/22
CPCG01N27/221
Inventor 吴沿友艾哈迈德艾兹姆吴沿胜凯瑟贾韦德邢德科于睿黎明鸿
Owner JIANGSU UNIV
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