Method for Determination of Moisture Content of Miscanth Leaf

A technology of plant leaves and measurement methods, which is applied in the directions of measuring devices, instruments, scientific instruments, etc., can solve the problems of time-consuming damage to leaves and inapplicability of rapid non-destructive testing of plant leaves.

Inactive Publication Date: 2018-12-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common method for detecting the moisture content of plant leaves is the drying constant weight method (national standard). This process needs to pick leaves and dry them to constant weight, which not only destroys the leaves but also takes too long, so it is not suitable for rapid and nondestructive detection of plant leaf moisture. content

Method used

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  • Method for Determination of Moisture Content of Miscanth Leaf
  • Method for Determination of Moisture Content of Miscanth Leaf
  • Method for Determination of Moisture Content of Miscanth Leaf

Examples

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Embodiment 1

[0035] Embodiment 1, a kind of assay method of Miscanthus leaf moisture content, carries out following steps successively:

[0036] 1), collecting the leaves of Miscanth to be tested;

[0037] 2) Scan Miscanthus leaves in the near-infrared spectral band of 400nm-2500nm to obtain the reflected light spectrum at the following 23 characteristic wavelengths: 486nm, 554nm, 624nm, 676nm, 694nm, 714nm, 772nm, 912nm, 958nm , 1098nm, 1322nm, 1392nm, 1432nm, 1520nm, 1642nm, 1870nm, 1900nm, 2038nm, 2122nm, 2214nm, 2274nm, 2316nm and 2404nm;

[0038] 3), substituting the data obtained in the above step 2) into the following moisture content calculation formula, thereby obtaining the moisture content of the Miscanthus leaves to be measured;

[0039] Y 含水率 =0.897541+0.02111λ 486 +0.009529λ 554 +0.006118λ 624 +0.02277λ 676 -0.01889λ 694 +0.01661λ 714 +0.007454λ 772 -0.009413λ 912 +0.013440λ 958 +0.004891λ 1098 +0.022500λ 1322 +0.035300λ 1392 -0.048630λ 1432 +0.022810λ 1520 +...

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Abstract

The invention discloses a method for determining the water content of a Miscanthus plant leaf. The method sequentially comprises the following steps: 1, collecting a Miscanthus plant leaf to be determined; 2, scanning the Miscanthus plant leaf in a near infrared spectral waveband of 400-2500 nm to obtain the reflection spectra in the following 23 characteristic wavelengths: 486 nm, 554 nm, 624 nm, 676 nm, 694 nm, 714 nm, 772 nm, 912 nm, 958 nm, 1098 nm, 1322 nm, 1392 nm, 1432 nm, 1520 nm, 1642 nm, 1870 nm, 1900 nm, 2038 nm, 2122 nm, 2214 nm, 2274 nm, 2316 nm and 2404 nm; and 3, substituting above data to a water content calculating formula in order to obtain the water content of the Miscanthus plant leaf to be determined.

Description

technical field [0001] The invention relates to a method for measuring the moisture content of leaves of miscanthus plants. Background technique [0002] Miscanthus plants have been listed as important biomass energy crops in the world. At present, Miscanthus plants are often planted in water-deficient or saline-alkali land. Water shortages often occur in Miscanthus plants in these areas, which directly affects their biochemical processes and morphological structures. The water content directly shows the nutritional stress, drought stress, pest damage and aging process of Miscanthus plants in the growth process. Monitoring the water content of miscanthus leaves is of great significance in its growth, nutrition and resistance detection. [0003] The common method for detecting the moisture content of plant leaves is the drying constant weight method (national standard). This process needs to pick leaves and dry them to constant weight, which not only destroys the leaves but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/359G01N21/3563
CPCG01N21/3563G01N21/359
Inventor 金晓丽陈晓玲柴继莹石春海
Owner ZHEJIANG UNIV
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