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Navegação Scientia Agrícola por título

Navegação Scientia Agrícola por título

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  • Estudo da influência da época de coleta dos ramos, no enraizamento de estacas caulinares de café (Coffea arabica L. CV "Mundo Novo")
    Ono, E.O.; Rodrigues, J.D.; Pinho, S.Z. de (Escola Superior de Agricultura "Luiz de Queiroz", 1992-01)
    Na propagação vegetativa através de estacas caulinares, a época de retirada dos ramos, que serão utilizados na confecção das estacas, tem grande influência sobre seu enraizamento. Outro fator de grande relevância é o ...
  • Extração e dosagem da atividade da polifenoloxidase do café
    Mazzafera, Paulo; Gonçalves, Kátia Viviane; Shimizu, Milton Massao (Escola Superior de Agricultura "Luiz de Queiroz", 2002-10)
    A atividade de polifenoloxidase (PFO) tem sido usada como indicadora da qualidade de bebida de café. Foram feitas comparações entre o método tradicionalmente usado para extração de polifenoloxidase de café e outro, onde ...
  • Genetic characterization of Xylella fastidiosa isolated from citrus and coffee plants
    Miranda, Vicente Savonitti; Farias, Paulo Roberto Silva; Roberto, Sérgio Rufo; Lacava, Pedro Magalhães (Escola Superior de Agricultura "Luiz de Queiroz", 2007-09)
    The Citrus Variegated Chlorosis and the Coffee Leaf Scorch are some of the many destructive diseases caused by Xylella fastidiosa, a gram-negative bacterium limited to the xylem of affected plants. As its genetic ...
  • Genetic diversity of cultivated Coffea arabica inbred lines assessed by RAPD, AFLP and SSR marker systems
    Maluf, Mirian Perez; Silvestrini, Milene; Ruggiero, Luciana Machado de Campos; Guerreiro Filho, Oliveiro; Colombo, Carlos Augusto (Escola Superior de Agricultura "Luiz de Queiroz", 2005-07)
    One of the greatest problems in Coffea arabica breeding is identifying precisely any inbred line, based only on botanical and agronomical descriptors, because of the reduced genetic variability of the species, close pedigree ...
  • Genomic prediction of leaf rust resistance to Arabica coffee using machine learning algorithms
    Sousa, Ithalo Coelho de; Nascimento, Moysés; Silva, Gabi Nunes; Nascimento, Ana Carolina Campana; Cruz, Cosme Damião; Silva, Fabyano Fonseca e; Almeida, Dênia Pires de; Pestana, Kátia Nogueira; Azevedo, Camila Ferreira; Zambolim, Laércio; Caixeta, Eveline Teixeira (Escola Superior de Agricultura "Luiz de Queiroz", 2021)
    Genomic selection (GS) emphasizes the simultaneous prediction of the genetic effects of thousands of scattered markers over the genome. Several statistical methodologies have been used in GS for the prediction of genetic ...
  • Growth rate and nutritional status of an organic coffee cropping system
    Ricci, Marta dos Santos Freire; Alves, Bruno José Rodrigues; Miranda, Simone Cordeiro de; Oliveira, Fabio Freire de (Escola Superior de Agricultura "Luiz de Queiroz", 2005-03)
    In view of the low N concentration in organic fertilizers, it is necessary to use high rates of such fertilizers to attend coffee crop requirements. Hence, N is the most limiting nutrient for organic coffee production. The ...
  • Growth, development, and fertilizer-15N recovery by the coffee plant
    Fenilli, Tatiele Anete Bergamo; Dourado-Neto, Durval; Trivelin, Paulo César Ocheuze; Favarin, José Laercio; Costa, Flávio Murilo Pereira da; Bacchi, Osny Oliveira Santos (Escola Superior de Agricultura "Luiz de Queiroz", 2007-09)
    The relationship between growth and fertilizer nitrogen recovery by perenial crops such as coffee is poorly understood and improved understanding of such relations is important for the establishment of rational crop ...
  • Histopathological characterization of Coffea arabica cultivar IPR 106 resistance to Meloidogyne paranaensis
    Shigueoka, Luciana Harumi; Dorigo, Orazília França; Arita, Lucas Yuuki; Fonseca, Inês Cristina de Batista; Silva, Santino Aleandro da; Sera, Gustavo Hiroshi; Machado, Andressa Cristina Zamboni (Escola Superior de Agricultura "Luiz de Queiroz", 2019-09)
    Meloidogyne species are widely distributed in coffee growing areas in Brazil, where M. paranaensis is responsible to significant losses to the crop. One of the main management strategies is the use of resistant cultivars, ...
  • Host colonization differences between citrus and coffee isolates of xylella fastidiosa in reciprocal inoculation
    Prado, Simone de Souza; Lopes, João Roberto Spotti; Demétrio, Clarice Garcia Borges; Borgatto, Adriano Ferreti; Almeida, Rodrigo Piacentini Paes de (Escola Superior de Agricultura "Luiz de Queiroz", 2008-05)
    Citrus variegated chlorosis (CVC) and coffee stem atrophy (CSA) are important diseases in Brazil associated with closely-related strains of Xylella fastidiosa, but little is know about host overlapping and importance of ...
  • Humic substances and its distribution in coffee crop under cover crops and weed control methods
    Martins, Bruno Henrique; Araujo-Junior, Cezar Francisco; Miyazawa, Mario; Vieira, Karen Mayara (Escola Superior de Agricultura "Luiz de Queiroz", 2016-07)
    Humic substances (HS) comprise the passive element in soil organic matter (SOM), and represent one of the soil carbon pools which may be altered by different cover crops and weed control methods. This study aimed to assess ...
  • Interações entre auxinas e ácido bórico, no enraizamento de estacas caulinares de Coffea arabica L. cv. Mundo Novo
    Ono, E.O.; Rodrigues, J.D.; Pinho, S.Z. do (Escola Superior de Agricultura "Luiz de Queiroz", 1992-01)
    O presente trabalho teve como finalidade, estudar o efeito de auxinas e do boro no enraizamento de estacas caulinares de Coffea arabica L. cv. "Mundo Novo". As estacas foram retiradas de ramos ortotrópicos semi-lenhosos ...
  • Invertase and sucrose synthase activities in coffee plants sprayed with sucrose solution
    Silva, José Carlos da; Alves, José Donizeti; Alvarenga, Amauri Alves de; Magalhães, Marcelo Murad; Livramento, Dárlan Einstein do; Fries, Daniela Deitos (Escola Superior de Agricultura "Luiz de Queiroz", 2003-04)
    One management practice of which the efficiency has not yet been scientifically tested is spraying coffee plants with diluted sucrose solutions as a source of carbon for the plant. This paper evaluates the effect of foliar ...
  • Life table of Hypothenemus hampei (Ferrari) in relation to coffee berry phenology under Colombian field conditions
    Ruiz-Cárdenas, Ramiro; Baker, Peter (Escola Superior de Agricultura "Luiz de Queiroz", 2010-11)
    The overlap of generations of coffee berry borer (CBB), Hypothenemus hampei (Ferrari) under field conditions in countries like Colombia hinders the construction of life tables by the sampling of natural populations. In ...
  • Molecular identification of Aspergillus spp. isolated from coffee beans
    Magnani, Marciane; Fernandes, Thiago; Prete, Cássio Egidio Cavenaghi; Homechim, Martin; Ono, Elisabete Yurie Sataque; Vilas-Boas, Laurival Antonio; Sartori, Daniele; Furlaneto, Márcia Cristina; Fungaro, Maria Helena Pelegrinelli (Escola Superior de Agricultura "Luiz de Queiroz", 2005-01)
    Some species belonging to the genus Aspergillus are potential producers of ochratoxin A (OA), a mycotoxin with nephrotoxic, immunosuppressive, teratogenic and carcinogenic effects. The aim of the present study was to ...
  • Natural infection of several coffea species and hybrids and Psilanthus ebracteolatus by the coffee ringspot virus (CoRSV)
    Kitajima, Elliot Watanabe; Chagas, César Martins; Braghini, Masako Toma; Fazuoli, Luiz Carlos; Fabris, Eliane Cristina Locali-; Salaroli, Renato Barbosa (Escola Superior de Agricultura "Luiz de Queiroz", 2011-07)
    Coffee ringspot is a minor coffee disease caused by the nuclear type of Brevipalpus mite-transmitted virus, Coffee ringspot virus (CoRSV). Recently outbreaks of the disease in some growing regions of the state of Minas ...
  • Numerical modeling of actual evapotranspiration of a coffee crop
    Cesanelli, Andrés; Guarracino, Luis (Escola Superior de Agricultura "Luiz de Queiroz", 2011-07)
    The evapotranspiration estimation has great importance to crop productivity and agricultural water management. In this study, evapotranspiration is analyzed in a coffee (Coffea arabica L.) crop located in Piracicaba, state ...
  • Performance of Holstein-Zebu cows under partial replacement of corn by coffee hulls
    Tavares, Anamaria Almeida Costa; Pereira, Marcos Neves; Tavares, Marcelo Rodrigo; Chaves, Márcio Luiz (Escola Superior de Agricultura "Luiz de Queiroz", 2005-03)
    Replacement of corn by citrus pulp or coffee hulls explores the potential of dairy cows to digest fiber-rich feedstuffs. However, for the State of Minas Gerais, Brazil, replacing citrus pulp by coffee hulls may reduce milk ...
  • Production and vegetative growth of coffee trees under fertilization and shade levels
    Jaramillo-Botero, Catalina; Santos, Ricardo Henrique Silva; Martinez, Herminia Emilia Prieto; Cecon, Paulo Roberto; Fardin, Merci Pereira (Escola Superior de Agricultura "Luiz de Queiroz", 2010-11)
    It is difficult to separate the effects of light reduction versus nutrient and water competition in agroforestry systems. The objective of this experiment was to evaluate the effect of shading and fertilizer supply on the ...
  • Qualidade de grãos de café beneficiados em resposta à adubação potássica
    Silva, Enilson de Barros; Nogueira, Francisco Dias; Guimarães, Paulo Tácito Gontijo (Escola Superior de Agricultura "Luiz de Queiroz", 2002-01)
    O clima e o solo tem elevada influência na qualidade dos grãos de café (Coffea arabica L.) beneficiado. Foram instalados dois experimentos sobre latossolo (Latossolo Vermelho distroférrico e Latossolo Vermelho-Amarelo ...
  • Receptor-Like Kinase (RLK) as a candidate gene conferring resistance to Hemileia vastatrix in coffee
    Almeida, Dênia Pires de; Castro, Isabel Samila Lima; Mendes, Tiago Antônio de Oliveira; Alves, Danúbia Rodrigues; Barka, Geleta Dugassa; Barreiros, Pedro Ricardo Rossi Marques; Zambolim, Laércio; Sakiyama, Ney Sussumu; Caixeta, Eveline Teixeira (Escola Superior de Agricultura "Luiz de Queiroz", 2021)
    The biotrophic fungus Hemileia vastatrix causes coffee leaf rust (CLR), one of the most devastating diseases in Coffea arabica. Coffee, like other plants, has developed effective mechanisms to recognize and respond to ...

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