@InProceedings{JungesAlmaDucaLamp:2017:EsDeAl,
               author = "Junges, Amanda Heemann and Alman{\c{c}}a, Marcus Andr{\'e} Kurtz 
                         and Ducati, Jorge Ricardo and Lampugnani, Cristian Scalvi",
                title = "Espectrorradiometria para detec{\c{c}}{\~a}o de 
                         altera{\c{c}}{\~o}es na assinatura espectral de folhas de 
                         videiras por doen{\c{c}}as de causa f{\'u}ngica e viral",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "3680--3686",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "Considering the causal agents of grapevine decline and death in 
                         vineyards, we can highlight the Grapevine Trunk Diseases, such as 
                         the Esca fungal complex and the Grapevine leafroll-associated 
                         virus (GLRaV). The identification and quantification of changes in 
                         leaf spectral signature by remote sensing can improve the 
                         vinegrape diseases diagnosis. The aim of this study was to 
                         characterize the spectral features of vines leaves by 
                         spectroradiometry, to detect changes due to the occurrence of Esca 
                         fungal complex and the Grapevine leafroll-associated virus. For 
                         this, grapevine leaves were collected in May, 2015 and May, 2016 
                         in a ''Merlot'' vineyard located in Veran{\'o}polis, Rio Grande 
                         do Sul, Brazil. The reflectance measurements were performed using 
                         a spectroradiometer in 350 to 2500 nm wavelenghts. The treatments 
                         consisted of asymptomatic leaves (1), (2) leaves with symptoms of 
                         GLRaV and leaves with initial (3) and final (4) symptoms of the 
                         Esca fungal complex. The results indicated that the spectral 
                         reflectance of vine leaves with GLRaV and Esca symptoms were 
                         distinct from the asymptomatic leaves spectral reflectance. There 
                         were increase of reflectance at wavelengths near 700 nm, that 
                         indicated reduction in leaf chlorophyll concentration and 
                         photosynthetic activity due to the pathogens. Leaves with GLRaV 
                         symptoms showed spectral changes at wavelengths near to 550 nm, 
                         that can be used to discriminate this disease.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "60114",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSLTCP",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSLTCP",
           targetfile = "60114.pdf",
                 type = "Monitoramento agr{\'{\i}}cola",
        urlaccessdate = "27 abr. 2024"
}