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dc.contributor.authorMartins, George Deroco [UNESP]
dc.contributor.authorTrindade Galo, Maria De Lourdes Bueno [UNESP]
dc.date.accessioned2018-12-11T16:40:12Z
dc.date.available2018-12-11T16:40:12Z
dc.date.issued2015-10-01
dc.identifierhttp://dx.doi.org/10.1590/S1982-21702015000400046
dc.identifier.citationBoletim de Ciencias Geodesicas, v. 21, n. 4, p. 783-796, 2015.
dc.identifier.issn1982-2170
dc.identifier.issn1413-4853
dc.identifier.urihttp://hdl.handle.net/11449/168202
dc.description.abstractDespite all technological support used in sugarcane cultivation in Brazil, this planting is still subject to the action of root pathogens. Due to its ability to selectively record the spectral flux of electromagnetic radiation reflected by vegetation, remote sensing is a powerful tool in detecting plants infected by pests and parasites. The objective of this work was to characterize the spectral response of healthy sugarcane and its plants infected by nematodes and Migdolus fryanus beetle larva. In situ radiometric measurements were performed and specific spectral analysis techniques, such as Red Edge Position Determination (REPD) and different vegetation indices were evaluated to discriminate these occurrences. The reflectance curves generated showed differences in magnitude mainly at red and near-infrared wavelengths and, as well as REPD, 784 Caracterização espectral da. chlorophyll b index, NDVI, MCARI and TCARI, were able to discriminate only healthy and infected plants. The spectral ratios sensitive to chlorophyll a and carotenoids pigments, however, discriminated the three occurrences, including nematode-infected plants and Migdolus fryanus. The best discrimination was obtained by the index of carotenoids, a pigment whose content is related to plant stress.en
dc.format.extent783-796
dc.language.isopor
dc.relation.ispartofBoletim de Ciencias Geodesicas
dc.sourceScopus
dc.subjectHyperspectral remote sensing
dc.subjectRoot pathogens
dc.subjectSpectral analysis
dc.subjectSugarcane pests
dc.subjectVegetation index
dc.titleCaracterização espectral da cana-de-açúcar infectada por nematoides e migdolus fryanus por espectrorradiometria de campopt
dc.title.alternativeIn situ spectral characterization of sugar cane infected by nematodes and Migdolus fryanusen
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.description.affiliationUnesp
dc.description.affiliationUniversidade Federal de Uberlândia
dc.description.affiliationUnespUnesp
dc.identifier.doi10.1590/S1982-21702015000400046
dc.identifier.scieloS1982-21702015000400783
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-84949770108
dc.identifier.fileS1982-21702015000400783.pdf
dc.relation.ispartofsjr0,188
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