Portable fluorescence spectroscopy platform for Huanglongbing (HLB) citrus disease in situ detection

Alessandro D. Mota; Giuliano Rossi; Guilherme Cunha de Castro; Tiago A. Ortega; Jarbas C. de Castro N.

doi:10.1117/12.2051361

27 February 2014 Portable fluorescence spectroscopy platform for Huanglongbing (HLB) citrus disease in situ detection

Alessandro D. Mota, Giuliano Rossi, Guilherme Cunha de Castro, Tiago A. Ortega, Jarbas C. de Castro N.

Proceedings Volume 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII; 90031U (2014) https://doi.org/10.1117/12.2051361
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

In this work, the development of a portable fluorescence spectroscopy platform for Huanglongbing (HLB) citrus disease in situ detection is presented. The equipment consists of an excitation blue LED light source, a commercial miniature spectrometer and embedded software. Measurements of healthy, HLB-symptomatic and HLB-asymptomatic citrus leafs were performed. Leafs were excited with the blue LED and their fluorescence spectra collected. Embedded electronics and software were responsible for the spectrum processing and classification via partial least squares regression. Global success rates above 80% and 100% distinction of healthy and HLB-symptomatic leafs were obtained.

Publisher’s Note [4/28/2015]: This SPIE Proceedings paper has been updated with an erratum correcting a reference issue in the paper. The corrected paper was published in place of the earlier version on [2/27/14]. If you purchased the original version of the paper and no longer have access, please contact SPIE Digital Library Customer Service at CustomerService@SPIEDigitalLibrary.org for assistance.

Citation Download Citation

Alessandro D. Mota, Giuliano Rossi, Guilherme Cunha de Castro, Tiago A. Ortega, and Jarbas C. de Castro N. "Portable fluorescence spectroscopy platform for Huanglongbing (HLB) citrus disease in situ detection", Proc. SPIE 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII, 90031U (27 February 2014); https://doi.org/10.1117/12.2051361

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