Method and device for determining plant transpiration efficiency precisively

A technology for plant transpiration and efficiency, which is applied in the field of accurate determination of plant transpiration efficiency, can solve the problems of expensive equipment, influence of measurement results, etc., and achieves the effects of low cost, favorable batch measurement and good sealing performance.

Inactive Publication Date: 2006-08-16
INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are disadvantages that the method is indirect, the location of the sample has a great influence on the measurement result, and the equipment is very expensive (millions of dollars).

Method used

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  • Method and device for determining plant transpiration efficiency precisively
  • Method and device for determining plant transpiration efficiency precisively
  • Method and device for determining plant transpiration efficiency precisively

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Embodiment Construction

[0031] figure 1 , 2 , 3, 4 as can be seen, measuring device of the present invention is by airtight plant incubator 8, and sealing cover 3, airtight air pressure balance box 11 are combined to form, and filling substratum 9 in plant incubator 8, arranges on the sealing cover The culture solution is added to the hole 7 and the sealing plug 6, the connecting pipe 1 is set between the plant cultivation box 8 and the air pressure balance box 11, the sealing cover 3 is provided with a seedling hole and a sealing rubber ring 5, and there is an annular air chamber 2 at the edge of the sealing cover The protrusion communicates with the air pressure balance box.

[0032] The method example that the present invention accurately measures plant transpiration efficiency in detail below in conjunction with accompanying drawing:

[0033] 1. Culture preparation: Take a certain weight of dry medium (fine sand, soil or vermiculite), fill up the incubator, add nutrient solution to the medium a...

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Abstract

A method for accurately measuring out transpiration efficiency of plant includes using sealed culture container to suppress evaporation of water at ground surface to nearly be zero, measuring weight variation of culture container with plant grown in it to obtain water consumption amount of transpiration and taking plant sample to obtain dried substance accumulation amount for calculating out transpiration efficacy of plant .The measuring device for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a method for accurately measuring the transpiration efficiency of plants and the device used, especially suitable for rapid and batch determination of the utilization of plant water in the growth process, providing a basis for water-saving agricultural research, belonging to biological physiological test methods and equipment technology field. Background technique [0002] Plant transpiration efficiency refers to the amount of dry matter formed by transpiration per unit mass of water during the growth and development of plants. There are differences between different plants and different varieties of the same plant. The commonly used unit is g kg -1 , is an important index to measure the water use of plants, and is an important physiological basis for the research of water-saving agriculture. Its measurement methods mainly include: [0003] Weighing method: within a certain period of time, transpiration water consumption / dry ...

Claims

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Application Information

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IPC IPC(8): G01N5/04G01N33/00C12Q1/02
Inventor 刘孟雨刘会灵
Owner INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI
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