Spectroscopy and Spectral Analysis, Volume. 42, Issue 9, 2890(2022)
Microscopic Raman Spectroscopy for Diagnosing Roots in Apple Rootstock Under Heavy Metal Copper Stress
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Fig. 3. (a) Mean Raman spectrum; (b) preprocessed image of mean Raman spectrum
Fig. 5. Single-band Raman peak imaging at root tissue of apple rootstock
Table 1. The main parameters of Raman spectrometer for collecting spectral data
View tableView in ArticleTable 1. The main parameters of Raman spectrometer for collecting spectral data
Parameters Spectral
resolution/cm-1Spectral
region/cm-1Maximum of
laser power/mWLaser power
research/mWExposure
time/sScanning
timesMicroscope
magnificationValues 1 50~3 000 30 27.1 0.1 2 10
Table 2. PLS-DA discriminant result confusion matrix
View tableView in ArticleTable 2. PLS-DA discriminant result confusion matrix
Contents 0 mg·L-1 6 mg·L-1 12 mg·L-1 18 mg·L-1 24 mg·L-1 0 mg·L-1 13 0 0 0 0 6 mg·L-1 0 16 1 0 0 12 mg·L-1 0 0 5 0 0 18 mg·L-1 0 0 1 7 0 24 mg·L-1 0 0 0 0 7
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. Microscopic Raman Spectroscopy for Diagnosing Roots in Apple Rootstock Under Heavy Metal Copper Stress[J]. Spectroscopy and Spectral Analysis, 2022, 42(9): 2890
Paper Information
Category: Research Articles
Received: Jul. 13, 2021
Accepted: Oct. 15, 2021
Published Online: Nov. 17, 2022
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