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Method for testing critical freeze damage temperature of plant, and system thereof

A test method and plant technology, applied in the direction of material impedance, material resistance, material capacitance, etc., can solve the problem of not being able to effectively and accurately measure the critical freezing temperature of plants, and achieve the effect of fast and accurate measurement

Inactive Publication Date: 2014-11-19
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method cannot effectively and accurately measure the critical freezing temperature of plants.

Method used

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  • Method for testing critical freeze damage temperature of plant, and system thereof
  • Method for testing critical freeze damage temperature of plant, and system thereof

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Embodiment Construction

[0023] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] The plants in this embodiment take tea trees as an example, and the critical freezing damage temperature of tea tree leaves is tested as the critical freezing damage temperature of tea trees.

[0025] In this example, the tested tea variety is Fuding Dabai.

[0026] The system composition of the present invention is as figure 1 As shown, it includes: low temperature constant temperature incubator 1, high precision LCR tester 2, temperature and humidity recorder 3, computer for data analysis 4, working electrode 5, speed regulating fan 6, humidifier 7; temperature and humidity recorder 3 monitoring The temperature and humidity changes in the low-temperature and constant temperature incubator 1; the humidity of the measurement environment can be changed by the humidifier 7, and the wind speed of the measurement environment can...

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Abstract

The invention discloses a method for testing the critical freeze damage temperature of a plant, and a system thereof, and belongs to the agricultural meteorological disaster monitoring and control field. The method comprises the following steps: putting a plant to be tested in a low-temperature constant-temperature incubator, stimulating natural frost conditions by using the low-temperature constant-temperature incubator, a speed adjustable fan and a humidifier to make the plant to be tested frozen, allowing one end of a working electrode to contact with the plant to be tested, connecting a high precision LCR tester by the other end of the working electrode, applying an AC excitation voltage signal to the working electrode, acquiring the electric signal of the plant by the working electrode, transmitting the electric signal to the high precision LCR tester, converting the electric signal into a digital signal, displaying, storing and processing in a computer for data analysis, and analyzing the change characteristics of the electric signal of the plant in order to obtain the freeze damage temperature of plant. The method and the system can be used for accurately measuring the critical freeze damage temperature of the plant, can be used in airflow disturbance frost prevention control, and provides important control parameters for the airflow disturbance frost prevention control.

Description

Technical field [0001] The present invention is the field of agricultural meteorological disasters measurement and control, which involves a test method and system that involves a plant critical frost damage temperature. Background technique [0002] The late -temperature frost damage caused by the low temperature in the early spring will cause the production of famous tea to reduce the output of famous tea, and the quality of tea decreases, which will cause huge economic losses in the tea industry.In recent years, the airflow -based anti -frost equipment and technology has been developed at home and abroad. The patent number is: JP2007000096 Japan Patent, which has publicly used the Chinese patent for the patent number of the tea and fruit cream; the patent number was 200810124434.7.Fan system control methods and devices for anti -plant frosting damage; US patents with patented number US20110247263, which proposes control based on critical low temperature and inverse temperature...

Claims

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Application Information

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IPC IPC(8): G01N27/02G01N27/04G01N27/22
Inventor 鹿永宗胡永光张西良刘萍
Owner JIANGSU UNIV
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