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	Provedor de dados CIGR Journal (1) Autor Aira Mena; Department of Agricultural Engineering, Università degli Studi di Milano, via Celoria 2- 20133 Milan (1) Aldo Calcante; Department of Agricultural Engineering, Università degli Studi di Milano, via Celoria 2- 20133 Milan (1) Fabrizio Mazzetto; Faculty of Science and Technology, Free University of Bozen, piazza Università, 5 – 39100 Bozen (1) Palavra-chave Agricultural Engineering Precision viticulture (1) Diagnosis (1) NDVI (1) Optical devices (1) Proximal sensing (1) Ano 2011 (1) País China (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Optical devices evaluation for diagnosis of Plasmopara viticola CIGR Journal Aldo Calcante; Department of Agricultural Engineering, Università degli Studi di Milano, via Celoria 2- 20133 Milan; Aira Mena; Department of Agricultural Engineering, Università degli Studi di Milano, via Celoria 2- 20133 Milan; Fabrizio Mazzetto; Faculty of Science and Technology, Free University of Bozen, piazza Università, 5 – 39100 Bozen. Remote sensing (RS) is the most widely adopted technique for crop monitoring in precision viticulture (PV).  Recent research looks at the development of proximal sensing technologies alternative to RS.  The present work considers the possible use of proximal sensing optical devices for diagnosis in vineyard; in particular, we evaluated the GreenSeeker RT100 and the Crop Circle (two commercial optical sensors) in detecting different levels of grapevine downy mildew symptoms.  The analysis was conducted on vine leaves that had been picked from plants of cv.  Cabernet Franc infected by Plasmopara viticola.  Leaves were divided into homogeneous infection classes and then analyzed through the optical devices and a portable Vis/NIR (visible/near infrared)... Palavras-chave: Agricultural Engineering Precision viticulture; Diagnosis; NDVI; Proximal sensing; Optical devices. Ano: 2011 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1827 Registros recuperados: 1 Primeira ... 1 ... Última

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