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Soybean seed vigor discrimination by using infrared spectroscopy and machine learning algorithms.

Gustavo Larios1, Gustavo Nicolodelli, Matheus Ribeiro

  • 1UFMS - Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil. cicero.cena@ufms.br.

Analytical Methods : Advancing Methods and Applications
|August 29, 2020
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Summary

Fourier transform infrared spectroscopy (FTIR) combined with chemometrics can accurately distinguish high-vigor soybean seeds from low-vigor ones. This novel approach identifies key molecules like proteins and fatty acids for effective seed quality assessment.

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Area of Science:

  • Agricultural Science
  • Analytical Chemistry
  • Biotechnology

Background:

  • Soybean seed vigor is crucial for crop establishment and yield.
  • Accurate and rapid methods for assessing seed vigor are needed.
  • Traditional methods for seed vigor testing can be time-consuming and labor-intensive.

Purpose of the Study:

  • To develop a novel, rapid method for distinguishing soybean seed vigor.
  • To utilize Fourier transform infrared spectroscopy (FTIR) and chemometric methods for seed vigor assessment.
  • To identify molecular markers associated with soybean seed vigor.

Main Methods:

  • Analysis of high and low vigor soybean seed batches using FTIR spectroscopy.
  • Application of chemometric techniques including Principal Component Analysis (PCA), Support Vector Machine (SVM), K-nearest Neighbors (KNN), and Discriminant Analysis.
  • Identification of discriminating molecules through spectral analysis.

Main Results:

  • Proteins, fatty acids, and amides were identified as key discriminators between high and low vigor soybean seeds.
  • Chemometric models achieved 100% accuracy in discriminating between high and low vigor seed batches.
  • FTIR spectroscopy coupled with multivariate analysis proved effective in distinguishing seed vigor.

Conclusions:

  • FTIR spectroscopy combined with chemometric analysis offers a promising new approach for soybean seed vigor assessment.
  • This method provides a rapid, accurate, and potentially cost-effective alternative to traditional seed vigor testing.
  • The identification of specific molecules linked to vigor can aid in understanding the physiological basis of seed quality.