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	Provedor de dados CIGR Journal (1) Scientia Agricola (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) Bassoi,Luís Henrique (1) Bognola,Itamar Antônio (1) Costa,Bruno Ricardo Silva (1) Fabrizio Mazzetto; Faculty of Science and Technology, Free University of Bozen, piazza Università, 5 – 39100 Bozen (1) Oldoni,Henrique (1) Souza,Claudia Rita de (1) Mais... Palavra-chave Proximal sensing (2) Agricultural Engineering Precision viticulture (1) Diagnosis (1) Grape quality (1) NDVI (1) Optical devices (1) Precision viticulture (1) Vegetative vigor (1) Vitis vinifera L. (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Ano 2021 (1) 2011 (1) País Brazil (1) China (1) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 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 Homogeneous zones of vegetation index for characterizing variability and site-specific management in vineyards Scientia Agricola Oldoni,Henrique; Costa,Bruno Ricardo Silva; Bognola,Itamar Antônio; Souza,Claudia Rita de; Bassoi,Luís Henrique. ABSTRACT Characterization of the spatial variability of vegetative vigor in vineyards can help improve the performance of site-specific management practices, or the management of vineyards with different rates. Characterization using canopy proximal sensing has been a widely disseminated technique; however, vineyards in southeastern Brazil, where the utilization of annual double pruning results in a winter harvest, knowledge of the role of variability in improving vineyard management has not yet been applied. This study aimed to determine if post-veraison mapping of a normalized difference vegetation index could be used to assess the variability in grapevine vigor, water status, physiology, yield and berry quality attributes at harvest in an irrigated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera L.; Precision viticulture; Proximal sensing; Vegetative vigor; Grape quality. Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000400101 Registros recuperados: 2 Primeira ... 1 ... Última

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