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Method for evaluating density of fuzz on back of Chinese chestnut leaves by using colorimeter

A technology of using color on the back of leaves, applied in the field of plant growth characteristics evaluation, can solve problems such as strong subjectivity, poor stability and repeatability, and non-digitalization, achieve accurate measurement results, high stability and repeatability, and overcome subjectivity. strong effect

Active Publication Date: 2021-07-30
CHANGLI INST OF POMOLOGY HEBEI ACADEMY OF AGRI & FORESTRY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for evaluating the density of hairs on the back of chestnut leaves using a colorimeter, so as to overcome the problems of non-data, strong subjectivity, poor stability and repeatability of the current visual method for measuring the density of hairs on the back of chestnut leaves , to provide a method for accurately evaluating the density of hairs on the back of the leaf for the prior art

Method used

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  • Method for evaluating density of fuzz on back of Chinese chestnut leaves by using colorimeter
  • Method for evaluating density of fuzz on back of Chinese chestnut leaves by using colorimeter
  • Method for evaluating density of fuzz on back of Chinese chestnut leaves by using colorimeter

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Embodiment 1

[0029] The leaves of 20 Chinese chestnut varieties in 10 provinces in the Chestnut Germplasm Resource Garden of Changli Fruit Research Institute, Hebei Academy of Agriculture and Forestry Sciences of my country were taken as experimental materials, and the leaf materials were collected by visual inspection and the method of the present invention to measure the density of hairs on the back of the leaves. Proceed as follows:

[0030] 1. Determination by visual inspection:

[0031] (1) Sample preparation

[0032] For each variety, 3 mature leaves in the middle section of the vegetative branches without pests and diseases and in the same direction were selected from the periphery of the canopy of each plant, and repeated 3 times.

[0033] (2) Evaluation of hair density on the back of the leaf

[0034] Subjective evaluation of the hairy density on the back of each variety by 5 people (references, Zhang Junke, Li Xingliang, Li Minji, etc. Analysis of factors affecting consumers' s...

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Abstract

The invention relates to the technical field of plant growth characteristic evaluation, and discloses a method for evaluating the density of fuzz on the back of Chinese chestnut leaves by using a colorimeter. The method comprises the following steps: (1) selecting a fuzz density measuring part on the back of Chinese chestnut leaves; (2) detecting the color of the back of the leaves by the colorimeter to obtain a parameter L* value; and (3) determining the fuzz density on the back of the leaves. According to the characteristic that the larger the density of the white fuzz on the backs of the Chinese chestnut leaves is, the whiter the color is, the fuzz density is converted into the color parameter L* value (whiteness value), and in combination with innovation of the measuring method, datamation measurement of the density of the fuzz on the backs of the Chinese chestnut leaves is achieved. The method overcomes the defects that a conventional visual inspection method is high in subjectivity and large in error, and a practical and reliable method is provided for accurate measurement and accurate comparison of the castanea mollissima leaf fuzz density.

Description

technical field [0001] The invention relates to the technical field of plant growth characteristics evaluation, in particular to a method for evaluating the density of hairs on the back of chestnut leaves by using a color difference meter. Background technique [0002] The hairs on the back of leaves are a variety of epidermal appendages for plants to adapt to various living environments. They play an important role in regulating plant energy balance, resisting ultraviolet radiation and pathogen invasion, alleviating high-efficiency gas exchange, and reducing excessive water transpiration. Studies have confirmed that the presence or absence and density of hairs are closely related to the photosynthetic characteristics, resistance to diseases and insect pests, drought resistance and cold resistance of plants. [0003] Chestnut (Castanea mollissima Bl.) has many white star-shaped hairs on the back of leaves, and the density of hairs on the back of leaves is an important index ...

Claims

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Application Information

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IPC IPC(8): G01N21/25
CPCG01N21/25
Inventor 郭燕张馨方张树航李颖王广鹏
Owner CHANGLI INST OF POMOLOGY HEBEI ACADEMY OF AGRI & FORESTRY SCI
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