Monitoring of Wheat Scab Using the Specific Spectral Index from ASD Hyperspectral Dataset
Joint Authors
Zhao, Jinling
Huang, Linsheng
Zhang, Hansu
Ding, Wenjuan
Huang, Wenjiang
Hu, Tingguang
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-11
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
It is highly important to accurately monitor wheat scab and provide technical guidance for the crop pests and diseases.
In this study, relevant analysis was performed among spectral reflectance, first-derivate data, and the disease severity data through ASD hyperspectral data.
Two sensitive spectral wavelength ranges of 450–488 nm and 500–540 nm were selected.
Then, a new wheat scab index (WSI) consisting of the two bands was proposed.
The inversion models of the scab severities were comparatively built by unitary linear regression and multiple stepwise regression techniques.
The results showed that the WSI had a significant linear relationship with severity of disease compared with other commonly used spectral indices.
The fitting R2, testing R2, and RMSE were 0.73, 0.70, and 13.41, respectively.
The multiple stepwise regression model established using the WSI, SDg/SDb, NBNDVI, and SDg as independent variables was better than the single-variable model.
Our results suggest that WSI can be used to provide scientific guidance for monitoring and precise management of wheat scab disease.
American Psychological Association (APA)
Huang, Linsheng& Zhang, Hansu& Ding, Wenjuan& Huang, Wenjiang& Hu, Tingguang& Zhao, Jinling. 2019. Monitoring of Wheat Scab Using the Specific Spectral Index from ASD Hyperspectral Dataset. Journal of Spectroscopy،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1192154
Modern Language Association (MLA)
Huang, Linsheng…[et al.]. Monitoring of Wheat Scab Using the Specific Spectral Index from ASD Hyperspectral Dataset. Journal of Spectroscopy No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1192154
American Medical Association (AMA)
Huang, Linsheng& Zhang, Hansu& Ding, Wenjuan& Huang, Wenjiang& Hu, Tingguang& Zhao, Jinling. Monitoring of Wheat Scab Using the Specific Spectral Index from ASD Hyperspectral Dataset. Journal of Spectroscopy. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1192154
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1192154