Spectroscopy and Spectral Analysis, Volume. 42, Issue 9, 2935(2022)

Hyperspectral Inversion Model of Pectin Content in Wheat Under Salt and Physical Damage Stresses

Zhao-jia PIAO*, Hai-ye YU, Jun-he ZHANG, Hai-gen ZHOU, Shuang LIU, Li-juan KONG, and Jing-min DANG*;
Author Affiliations
  • College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
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    Figures & Tables(7)
    Changes of pectin content in wheat leaves under different stress factors in the first week(a): Under single stress factor; (b): Under multiple stress factors
    Average pectin contents in wheat leaves corresponding to different stress factors in the first weekDifferent lowercase letters indicate the significant difference between different treatments at p<0.05 (a): Single stress factor; (b): Multiple stress factors
    Hyperspectral characteristics of wheat leaves under different stress factors(a): Under single stress factor; (b): Under multiple stress factors
    Characteristic wavelength extraction by correlation coefficient method(a): Correlation between original spectra and pectin content in wheat leaves; (b): Correlation between first-derivative spectra and pectin content in wheat leaves
    (a) The relationship between the pectin content predicted by the optimal model and the pectin content measured by the kit; (b) Precision evaluation of the proposed pectin prediction model
    • Table 1. Experimental design of salt and physical damage stresses

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      Table 1. Experimental design of salt and physical damage stresses

      分组盐胁迫物理损伤
      单因素
      胁迫
      实验
      A150 mmol·L-1 NaCl-
      A2100 mmol·L-1 NaCl-
      A3150 mmol·L-1 NaCl-
      S1-针刺10孔
      S2-针刺30孔
      CK--
      复合
      胁迫
      实验
      A1S150 mmol·L-1 NaCl针刺10孔
      A1S250 mmol·L-1 NaCl针刺30孔
      A2S1100 mmol·L-1 NaCl针刺10孔
      A2S2100 mmol·L-1 NaCl针刺30孔
      A3S1150 mmol·L-1 NaCl针刺10孔
      A3S2150 mmol·L-1 NaCl针刺30孔
      CK--
    • Table 2. Prediction models obtained by different modeling methods and preprocessing techniques

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      Table 2. Prediction models obtained by different modeling methods and preprocessing techniques

      建模对象建模方法预处理方法RcRp
      果胶含量PCRMSC+SG(W702~728)0.902 40.880 1
      SNV+SG(W702~728)0.917 60.908 7
      MSC+FD+SG(W690~700)0.906 60.877 8
      MSC+FD+NDF(W690~700)0.941 10.950 6
      SNV+FD+SG(W690~700)0.927 40.920 4
      SNV+FD+NDF(W690~700)0.936 00.943 8
      FD(W690~700)0.851 50.860 6
      W702~7280.872 50.854 8
      0.862 40.821 1
      果胶含量PLSMSC+SG(W702~728)0.914 50.918 8
      SNV+SG(W702~728)0.912 10.906 4
      MSC+FD+SG(W690~700)0.961 20.938 2
      MSC+FD+NDF(W690~700)0.948 80.896 7
      SNV+FD+SG(W690~700)0.952 00.930 4
      SNV+FD+NDF(W690~700)0.978 20.981 4
      FD(W690~700)0.917 40.905 8
      W702~7280.887 60.893 4
      0.876 80.889 2
      果胶含量SMLRMSC+SG(W702~728)0.876 50.877 8
      SNV+SG(W702~728)0.874 80.890 2
      MSC+FD+SG(W690~700)0.900 30.899 6
      MSC+FD+NDF(W690~700)0.871 40.902 8
      SNV+FD+SG(W690~700)0.802 80.788 6
      SNV+FD+NDF(W690~700)0.791 00.768 4
      FD(W690~700)0.785 50.817 3
      W702~7280.814 00.828 0
      0.779 10.773 6
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    Zhao-jia PIAO, Hai-ye YU, Jun-he ZHANG, Hai-gen ZHOU, Shuang LIU, Li-juan KONG, Jing-min DANG. Hyperspectral Inversion Model of Pectin Content in Wheat Under Salt and Physical Damage Stresses[J]. Spectroscopy and Spectral Analysis, 2022, 42(9): 2935

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    Paper Information

    Category: Research Articles

    Received: Jul. 21, 2021

    Accepted: Oct. 21, 2021

    Published Online: Nov. 17, 2022

    The Author Email: Zhao-jia PIAO (piaozj18@mails.jlu.edu.cn)

    DOI:10.3964/j.issn.1000-0593(2022)09-2935-06

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