The Promise of Hyperspectral Imaging for the Early Detection of Crown Rot in Wheat

AgriEngineering

Darren Plett¹  Yiting Xie¹  Huajian Liu¹ 

[1] The Plant Accelerator, Australian Plant Phenomics Facility, Waite Campus, School of Agriculture, Food and Wine, University of Adelaide, Building WT 40, Hartley Grove, Urrbrae, SA 5064, Australia;

关键词: crown rot disease;    plant phenotyping;    hyperspectral imaging;    computer vison;    machine learning;   

DOI  :  10.3390/agriengineering3040058

来源: DOAJ

【 摘 要 】

Crown rot disease is caused by Fusarium pseudograminearum and is one of the major stubble-soil fungal diseases threatening the cereal industry globally. It causes failure of grain establishment, which brings significant yield loss. Screening crops affected by crown rot is one of the key tools to manage crown rot, because it is necessary to understand disease infection conditions, identify the severity of infection, and discover potential resistant varieties. However, screening crown rot is challenging as there are no clear visible symptoms on leaves at early growth stages. Hyperspectral imaging (HSI) technologies have been successfully used to better understand plant health and disease incidence, including light absorption rate, water and nutrient distribution, and disease classification. This suggests HSI imaging technologies may be used to detect crown rot at early growing stages, however, related studies are limited. This paper briefly describes the symptoms of crown rot disease and traditional screening methods with their limitations. It, then, reviews state-of-art imaging technologies for disease detection, from color imaging to hyperspectral imaging. In particular, this paper highlights the suitability of hyperspectral-based screening methods for crown rot disease. A hypothesis is presented that HSI can detect crown-rot-infected plants before clearly visible symptoms on leaves by sensing the changes of photosynthesis, water, and nutrients contents of plants. In addition, it describes our initial experiment to support the hypothesis and further research directions are described.

【 授权许可】

Unknown