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dc.creatorSantos, Sthéfany Airane dos-
dc.creatorFerraz, Gabriel Araújo e Silva-
dc.creatorFigueiredo, Vanessa Castro-
dc.creatorVolpato, Margarete Marin Lordelo-
dc.creatorMachado, Marley Lamounier-
dc.creatorSilva, Vânia Aparecida-
dc.date.accessioned2023-05-25T20:51:54Z-
dc.date.available2023-05-25T20:51:54Z-
dc.date.issued2023-
dc.identifier.citationSANTOS, S. A. dos et al. Evaluation of the water conditions in coffee plantations using RPA. AgriEngineering, [S.l.], v. 5, n. 1, 2023.pt_BR
dc.identifier.urihttps://www.mdpi.com/2624-7402/5/1/5pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/56864-
dc.description.abstractThe objective of this study is to evaluate the water conditions in a coffee plantation using precision agriculture (PA) techniques associated with geostatistics and high-resolution images. The study area is 1.2 ha of coffee crops of the Topázio MG 1190 cultivar. Two data collections were performed: one in the dry season and one in the rainy season. A total of 30 plants were marked and georeferenced within the study area. High-resolution images were obtained using a remotely piloted aircraft (RPA) equipped with a multispectral sensor. Leaf water potential was obtained using a Scholander pump. The spatialization and interpolation of the leaf water potential data were performed by geostatistical analysis. The vegetation indices were calculated through the images obtained by the RPA and were used for a regression and correlation analysis, together with the water potential data. The degree of spatial dependence (DSD) obtained by the geostatistical data showed strong spatial dependence for both periods evaluated. In the correlation analysis and linear regression, only the red band showed a significant correlation (39.93%) with an R² of 15.95%. The geostatistical analysis was an important tool for the spatialization of the water potential variable; conversely, the use of vegetation indexes obtained by the RPA was not as efficient in the evaluation of the water conditions of the coffee plants.pt_BR
dc.languageen_USpt_BR
dc.publisherMultidisciplinary Digital Publishing Institutept_BR
dc.rightsrestrictAccesspt_BR
dc.sourceAgriEngineeringpt_BR
dc.subjectWater statuspt_BR
dc.subjectLeaf water potentialpt_BR
dc.subjectSpatializationpt_BR
dc.subjectVegetation indicespt_BR
dc.subjectHigh-resolution imagespt_BR
dc.titleEvaluation of the water conditions in coffee plantations using RPApt_BR
dc.typeArtigopt_BR
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