Fungal identification in peanuts seeds through multispectral images: Technological advances to enhance sanitary quality.

Abstract

The sanitary quality of seed is essential in agriculture. This is because pathogenic fungi compromise seed physiological quality and prevent the formation of plants in the field, which causes losses to farmers. Multispectral images technologies coupled with machine learning algorithms can optimize the identification of healthy peanut seeds, greatly improving the sanitary quality. The objective was to verify whether multispectral images technologies and artificial intelligence tools are effective for discriminating pathogenic fungi in tropical peanut seeds. For this purpose, dry peanut seeds infected by fungi ( A. flavus , A. niger , Penicillium sp., and Rhizopus sp.) were used to acquire images at different wavelengths (365 to 970 nm). Multispectral markers of peanut seed health quality were found. The incubation period of 216 h was the one that most contributed to discriminating healthy seeds from those containing fungi through multispectral images. Texture (Percent Run), color (CIELab L *) and reflectance (490 nm) were highly effective in discriminating the sanitary quality of peanut seeds. Machine learning algorithms (LDA, MLP, RF, and SVM) demonstrated high accuracy in autonomous detection of seed health status (90 to 100%). Thus, multispectral images coupled with machine learning algorithms are effective for screening peanut seeds with superior sanitary quality.

Plant phenotyping relevance

マルチスペクトル画像と機械学習を用いて、ピーナッツ種子の健全性・真菌感染状態を画像特徴から識別する手法が研究の中心であり、植物器官の病害状態を測定するフェノタイピングに該当する。

Code and data availability

The article describes multispectral imaging of peanut seeds and machine learning classification, but the supplied blocks contain no public deposit of the image data, extracted phenotype tables, or author analysis code. The only URLs are the seed supplier's site, a scikit-learn documentation link, a cited reference, a C

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