Researching | Detection of Sorghum-Sudan Grass Seed Germination Rate Based on Near Infrared Spectroscopy

Spectroscopy and Spectral Analysis, Volume. 42, Issue 2, 423(2022)

Detection of Sorghum-Sudan Grass Seed Germination Rate Based on Near Infrared Spectroscopy

Yun-ting HUI^1、*, De-cheng WANG^1、1;, Xin TANG^2、2;, Yao-qi PENG^1、1;, Hong-da WANG^1、1;, Hai-feng ZHANG^1、1;, and Yong YOU^{1、1; *;}

Author Affiliations

¹1. College of Engineering, China Agricultural University, Beijing 100083, China

²2. Shandong Agriculture and Engineering University, Ji'nan 250100, China

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Fig. 1. Near-infrared spectrometer

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Fig. 2. The original NIR spectra of sorghum-sudan grass seeds

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Fig. 3. NIR spectrum curves after 1-Der pre-processing

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Fig. 4. NIR Spectrum curves after 2-Der pre-processing

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Fig. 5. Grid search for best c, g 3D view

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Fig. 6. Contour map of grid search for best c, g

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Fig. 7. The actual classified result and prediction result of testing samples

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Table 1. Germination rate of sample
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Table 1. Germination rate of sample
发芽率/% 样本数
40~45 18
45~50 19
50~55 29
55~60 18
60~65 16

Table 2. Spectral pretreatment results of the sorghum-sudan grass seed
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Table 2. Spectral pretreatment results of the sorghum-sudan grass seed
光谱预处
理方法训练集测试集
$R_{c}^{2}$ RMSEC $R_{p}^{2}$ RMSEP
无 0.90 0.29 0.87 0.36
1-Der 0.94 0.21 0.92 0.25
2-Der 0.81 0.43 0.79 0.48

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Yun-ting HUI, De-cheng WANG, Xin TANG, Yao-qi PENG, Hong-da WANG, Hai-feng ZHANG, Yong YOU. Detection of Sorghum-Sudan Grass Seed Germination Rate Based on Near Infrared Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2022, 42(2): 423

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Paper Information

Category: Research Articles

Received: Jan. 4, 2021

Accepted: Apr. 8, 2021

Published Online: Apr. 2, 2022

The Author Email: HUI Yun-ting (HYT1556521354@163.com)

DOI:10.3964/j.issn.1000-0593(2022)02-0423-05

Topics

laser devices and laser physics

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Instrumentation, Measurement and Metrology