Spectroscopy and Spectral Analysis, Volume. 42, Issue 6, 1741(2022)

Study on Quantitative Detection of Tomato Seedling Robustness in Spring Seedling Transplanting Period Based on VIS-NIR Spectroscopy

Jiang-tao JI*, Peng-ge LI1;, Xin JIN1; 2; *;, Hao MA1; 2;, and Ming-yong LI1;
Author Affiliations
  • 1. College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China
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    Figures & Tables(12)
    The robustness evaluation value of tomato seedlings in the spring seedling transplanting period
    The distribution of tomato simplified evaluation value within the evaluation value range
    Classification of tomato seedlings in spring seedling transplanting period(a): Overall condition of tomato plug seedlings; (b): High quality seedlings; (c): Qualified seedlins; (d): Poor quality seedlings
    Spectra of tomato seedlings in the spring nursery and transplant period(a): Raw spectral curve;(b): Spectral curve after denoising;(c): Spectral curve after MSC pretreatment
    Key variables selection results by CARS
    The distribution of characteristic wavelengths selected by CARS in the whole band
    The distribution of characteristic wavelengths selected by UVE-SPA in the whole band
    CNN structure based on U-Net model
    • Table 1. Weight coefficient of individual index of tomato seedlings in spring transplanting period

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      Table 1. Weight coefficient of individual index of tomato seedlings in spring transplanting period

      指标权重
      株高0.135
      茎粗0.128
      鲜质量0.117
      干质量0.336
      总叶绿素0.284
    • Table 2. Quality classification results of tomato seedlings

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      Table 2. Quality classification results of tomato seedlings

      类别聚类
      样本数
      聚类评价值
      Vs
      最终
      样本数
      最终评价值
      Vs
      最终
      占比/%
      优质苗77≥0.62388≥0.60032
      合格苗940.366~0.6231270.300~0.60046
      劣质苗105≤0.36661≤0.30022
    • Table 3. Sample set division

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      Table 3. Sample set division

      统计参数秧苗评价值
      建模集预测集
      最小值0.0930.117
      最大值0.8490.814
      平均值0.4830.462
      标准偏差0.0830.109
    • Table 4. Comparison of model effects of different spectral variables

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      Table 4. Comparison of model effects of different spectral variables

      模型变量数建模集预测集
      RcRMSECRpRMSEP
      LS-SVM2 6040.7830.1310.5660.179
      CNN2 6040.9050.0860.8730.098
      CARS-LS-SVM580.9000.1410.7230.091
      CARS-CNN580.9540.0840.9070.064
      UVE-SPA-LS-SVM1040.9370.1300.7700.086
      UVE-SPA-CNN1040.9880.0850.9460.025
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    Jiang-tao JI, Peng-ge LI, Xin JIN, Hao MA, Ming-yong LI. Study on Quantitative Detection of Tomato Seedling Robustness in Spring Seedling Transplanting Period Based on VIS-NIR Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(6): 1741

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    Paper Information

    Category: Research Articles

    Received: Jun. 4, 2021

    Accepted: --

    Published Online: Nov. 14, 2022

    The Author Email: Jiang-tao JI (jjt0907@163.com)

    DOI:10.3964/j.issn.1000-0593(2022)06-1741-08

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