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Provedor de dados:  Ciência Rural
País:  Brazil
Título:  Effects of storage on vis-NIR-SWIR reflectance spectra of Mombasa grass leaf samples
Autores:  Tavares,Tiago Rodrigues
Fiorio,Peterson Ricardo
Seixas,Hugo Tameirão
Garcia,Amparo Cisneiros
Barros,Pedro Paulo da Silva
Data:  2020-01-01
Ano:  2020
Palavras-chave:  Diffuse reflectance spectroscopy
Hyperspectral sensors
Precision agriculture
Resumo:  ABSTRACT: Vis-NIR-SWIR reflectance spectra of leaf samples, collected in the laboratory, allow the calibration of predictive models to quantify their physicochemical attributes in a practical manner and without producing chemical residues. This technique should enable the development of management strategies for intensification of pasture use. However, spectral analysis performed in the laboratory may be affected by the deterioration of plant material during transport from the field to the lab, so storage methods are necessary. This research aimed to evaluate the effects of different storage methods on the spectral response of Mombasa grass leaves. Three methods were evaluated: (i) artificially refrigerated environment, (ii) humid environment, and (iii) without microenvironment control. These methods were tested in five different storage times: 2 hours, 4 hours, 8 hours, 24 hours and 48 hours. The spectral behavior of the leaves still inserted in the plant was used as a quality reference. Results showed notable changes at the earliest storage time for the treatment without microenvironment control. Both methods with microenvironment control stabilized the occurrence of spectral changes over 48 hours of the samples storage, thus both were suggested for this species.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Universidade Federal de Santa Maria
Relação:  10.1590/0103-8478cr20190587
Formato:  text/html
Fonte:  Ciência Rural v.50 n.3 2020
Direitos:  info:eu-repo/semantics/openAccess

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