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Spatial variability of coffee plant water consumption based on the SEBAL algorithm

Costa, Jéfferson de Oliveira; Coelho, Rubens Duarte; Wolff, Wagner; José, Jefferson Vieira; Folegatti, Marcos Vinicius; Ferraz, Silvio Frosini de Barros (Escola Superior de Agricultura "Luiz de Queiroz", 2019-03)

Awareness of evapotranspiration (ET) and crop coefficient (Kc) is necessary for irrigation management in coffee crops. ET and Kc spatial variabilities are disregarded in traditional methods. Methods based on radiometric ...
Spatial variability of leaf wetness duration in cotton, coffee and banana crop canopies

Santos, Eduardo Alvarez; Sentelhas, Paulo Cesar; Pezzopane, José Eduardo Macedo; Angelocci, Luiz Roberto; Monteiro, José Eduardo Boffino Almeida (Escola Superior de Agricultura "Luiz de Queiroz", 2008-12)

Despite the importance of leaf wetness duration for plant disease epidemiology, there has been little attention paid to research on how its variability relates to different cropping situations. The objective of this study ...
Spatio-temporal modelling of coffee berry borer infestation patterns accounting for inflation of zeroes and missing values

Cárdenas, Ramiro Ruiz; Assunçã, Renato Martins; Demétrio, Clarice Garcia Borges (Escola Superior de Agricultura "Luiz de Queiroz", 2009-01)

The study of pest distributions in space and time in agricultural systems provides important information for the optimization of integrated pest management programs and for the planning of experiments. Two statistical ...
Stomatal behavior and components of the antioxidative system in coffee plants under water stress

Deuner, Sidnei; Alves, José Donizeti; Zanandrea, Ilisandra; Goulart, Patrícia de Fátima Pereira; Silveira, Neidiquele Maria; Henrique, Paôla de Castro; Mesquita, Alessandro Carlos (Escola Superior de Agricultura "Luiz de Queiroz", 2011-01)

Coffee (Coffea arabica) plants show a positive relationship between stomatal closure and formation and accumulation of H2O2. However, for coffee plants under water restriction such relationship has never been studied. The ...
Total phenol concentrations in coffee tree leaves during fruit development

Salgado, Paula Rodrigues; Favarin, José Laércio; Leandro, Roseli Aparecida; Lima Filho, Oscar Fontão de (Escola Superior de Agricultura "Luiz de Queiroz", 2008-07)

Vegetables have a natural defense against external factors synthesizing phenolic compounds, which depends on the maturity stage and on the climate. Total phenol grades were extracted from mature and young coffee leaves and ...
Variability of water balance components in a coffee crop in Brazil

Silva, Adriana Lúcia da; Roveratti, Renato; Reichardt, Klaus; Bacchi, Osny Oliveira Santos; Timm, Luis Carlos; Bruno, Isabeli Pereira; Oliveira, Julio César Martins; Dourado Neto, Durval (Escola Superior de Agricultura "Luiz de Queiroz", 2006-03)

Establishing field water balances is difficult and costly, the variability of their components being the major problem to obtain reliable results. This component variability is presented herein for a coffee crop grown in ...
Vegetative and productive aspects of organically grown coffee cultivars under shaded and unshaded systems

Ricci, Marta dos Santos Freire; Rouws, Janaina Ribeiro Costa; Oliveira, Nelson Geraldo de; Rodrigues, Marinete Bezerra (Escola Superior de Agricultura "Luiz de Queiroz", 2011-07)

Although Coffea arabica species has its origin in the African understories, there is great resistance on the part of the Brazilian producers for growing this species under agroforestry systems as they fear that shading ...
Yield performance and leaf nutrient levels of coffee cultivars under different plant densities

Paulo, Edison Martins; Furlani Jr, Enes (Escola Superior de Agricultura "Luiz de Queiroz", 2010-11)

Coffee (Coffea Arabica L.) plantations using adapted cultivars to regional environmental conditions with optimal plant population density and adequate nutrition are expected to show high yield responses. The triennial ...