NIR spectroscopy and Deep Neural Networks for early common root rot detection in wheat from multi-season trials

Article


Xiong, Yiyi, McCarthy, Cheryl, Humpal, Jacob and Percy, Cassandra. 2024. "NIR spectroscopy and Deep Neural Networks for early common root rot detection in wheat from multi-season trials." Agronomy Journal. 116 (5), pp. 2370-2390. https://doi.org/10.1002/agj2.21648
Article Title

NIR spectroscopy and Deep Neural Networks for early common root rot detection in wheat from multi-season trials

ERA Journal ID5298
Article CategoryArticle
AuthorsXiong, Yiyi, McCarthy, Cheryl, Humpal, Jacob and Percy, Cassandra
Journal TitleAgronomy Journal
Journal Citation116 (5), pp. 2370-2390
Number of Pages21
Year2024
PublisherJohn Wiley & Sons
Place of PublicationUnited States
ISSN0002-1962
1435-0645
Digital Object Identifier (DOI)https://doi.org/10.1002/agj2.21648
Web Address (URL)https://acsess.onlinelibrary.wiley.com/doi/10.1002/agj2.21648
Abstract

In Australia, the soil-borne disease common root rot (Bipolaris sorokiniana) (CRR) in wheat (Triticum aestivum L.) leads to substantial yield losses, yet has limited visible aboveground symptoms, making detection and identification labor intensive. Near-infrared (NIR) spectroscopy offers an early potential identification solution for CRR in wheat and has previously been reported with success for crop disease detection. This study investigated the ability of nondestructive NIR spectroscopy in combination with deep neural networks (DNN), logistic regression (LR), and principal component analysis combined with support vector machines (PCA-SVM) for early-stage CRR detection in wheat. NIR spectra of five different wheat varieties with varying resistance to CRR were collected in two seasons of glasshouse and three seasons of field trials using a portable spectrometer. Results demonstrated that DNN outperformed LR and PCA-SVM, achieving 66%–91% average classification accuracy in glasshouse trials and an average accuracy of 73% with up to 87% in field trials, effectively distinguishing inoculated and non-inoculated wheat plants from seedling to anthesis stages. Validation with a third season of field data achieved an average of 77% accuracy for the most susceptible variety during the stem elongation stage. NIR reflectance within 1600–1700 nm was identified as most important for estimating CRR presence, with initial detection occurring 35 days after sowing (DAS) in the glasshouse and 46 DAS in the field. In conclusion, a NIR spectrometer with a DNN model successfully performed disease classification, with the potential as a portable early disease detection tool to assist farm management decisions.

Article Publishing Charge (APC) FundingProject Funding
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020300409. Crop and pasture protection (incl. pests, diseases and weeds)
310705. Mycology
Byline AffiliationsCentre for Agricultural Engineering
Centre for Crop Health
Grains Research and Development Corporation, Australia
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https://research.usq.edu.au/item/z9795/nir-spectroscopy-and-deep-neural-networks-for-early-common-root-rot-detection-in-wheat-from-multi-season-trials

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