Results 41 to 50 of about 175 (141)

Effect of light and temperature on Cercospora coffeicola and Coffe arabica pathosystem

, 2016
O índice de velocidade de crescimento micelial (IVCM), a produção de cercosporina e a intensidade (incidência e severidade) da cercosporiose do cafeeiro em mudas de cafeeiro cv. Catuaí Vermelho IAC 144, foram avaliadas em diferentes intensidades luminosas (80, 160, 240 e 320 μmol m-2 s-1) e temperaturas (17, 21, 25 e 29°C).
Silva, Marilia Goulart, Pozza, Edson Ampélio, Monteiro, Fernando Pereira, Lima, Caio Vitor Rodrigues Vaz, Silva, Marilia Goulart, Pozza, Edson Ampélio, Monteiro, Fernando Pereira, Lima, Caio Vitor Rodrigues Vaz   +7 more
openaire   +4 more sources

Incidência de pragas e doenças em agroecossistemas de café orgânico de agricultores familiares em Poço Fundo-MG Incidence of plagues and diseases in agroecossystems of organic coffee of familiar farmers in Poço Fundo-MG

Ciência e Agrotecnologia, 2004
Objetivando-se determinar a incidência de pragas Leucoptera coffeella (GUÉRIN-MENÉVILLE, 1842) e Hypothenemus hampei (FERRARI, 1867) e doenças Hemileia vastatrix (BERK e BROOME, 1869) e Cercospora coffeicola (BERK e CURTIS, 1880), durante o período de ...
Márcia Martins, Antônio Nazareno Guimarães Mendes, Maria Inês Nogueira Alvarenga   +2 more
doaj   +1 more source

Genetic Variability of Cercospora coffeicola from Organic and Conventional Coffee Plantings, Characterized by Vegetative Compatibility [PDF]

Phytopathology®, 2008
Cercospora leaf spot is a destructive fungal disease that has become a threat to the coffee industry in Brazil. Nevertheless, little is known about populations of its causal agent, Cercospora coffeicola. We evaluated the potential of using nitrogen-nonutilizing (nit) mutants and vegetative compatibility groups (VCGs) to characterize the genetic ...
R B, Martins, L A, Maffia, E S G, Mizubuti   +2 more
openaire   +2 more sources

Technology Roadmapping Architecture Based on Knowledge Management: Case Study for Improved Indigenous Coffee Production from Guerrero, Mexico

Journal of Sensors, Volume 2019, Issue 1, 2019., 2019
Having demonstrated its importance for economic and human developments, technological change is considered one of the biggest supports worldwide. Today, with the population increase, the inclusion of technology is considered the most appropriate way to reduce the impact of this challenge.
D. I. Contreras-Medina, E. Sánchez Osorio, L. A. Olvera Vargas, Y. Romero Romero, Jesus R. Millan-Almaraz   +4 more
wiley   +1 more source

Caracterización de sistemas productivos de café (Coffea arabica L.) en la Reserva Natural Tepec-Xomolth, Madriz, Nicaragua

Siembra, 2023
El presente estudio tuvo como objetivo caracterizar los sistemas productivos de café (Coffea arabica L.) en la Reserva Natural Tepec-Xomolth La Patasta, con énfasis en aspectos socioeconómicos, productivos, agronómicos y fitosanitarios.
Juan Carlos Morán Centeno, Edgardo Jiménez-Martínez   +1 more
doaj   +1 more source

Progresso da ferrugem e da cercosporiose em cafeeiro (coffea arabica l.) Com diferentes épocas de início e parcelamentos da fertirrigação Progress of coffee rust and brown eye spot with differents periods at initial irrigation and fertirrigation time

Ciência e Agrotecnologia, 2003
Avaliações da incidência da ferrugem (Hemileia vastatrix Berk. & Br.) e da cercosporiose (Cercospora coffeicola Berk. & Cooke) foram realizadas em experimento com a cultura do café cultivar 'Catuai', com 12 anos de cultivo.
Viviane Talamini, Edson Ampélio Pozza, Paulo Estevão de Souza, Antonio Marciano da Silva   +3 more
doaj   +1 more source

Klasifikasi Penyakit Daun Kopi Robusta Menggunakan Metode SVM dengan Ekstraksi Ciri GLCM

Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2023
Tanaman kopi merupakan sumber pendapatan bagi beberapa petani di Indonesia dan berperan penting sebagai penghasil devisa negara. Produksi tanaman kopi dapat menurun akibat serangan hama dan penyakit.
Agus Supriyanto, R. Rizal Isnanto, Oky Dwi Nurhayati   +2 more
doaj   +1 more source

Thermal sensitivity and yield of Arabica coffee under climatic variability

Agronomy Journal, Volume 118, Issue 3, May/June 2026.
Abstract Coffee yield is influenced by climatic factors, with temperature and water availability being key determinants. This study aimed to evaluate the effects of climate variability on the yield of Arabica coffee (Coffea arabica L.) cultivars across phenological phases and to validate an agrometeorological model at local and regional scales using ...
Marcus Vinicius Oliveira Noronha, João Paulo Silva, Marcos Augusto Plachi, Douglas Martins de Santana, Renan Caldas Umburanas, José Laércio Favarin, Luciana Alvim Santos Romani, Silvia Maria Fonseca Silveira Massruhá, Durval Dourado Neto   +8 more
wiley   +1 more source

Influência da nutrição mineral na intensidade da mancha-de-olho-pardo em mudas de cafeeiro Influence of the mineral nutrition on intensity of brown-eye spot in young coffee plants

Pesquisa Agropecuária Brasileira, 2001
Objetivando avaliar a intensidade da mancha-de-olho-pardo do cafeeiro, variedade Catuaí Vermelho, com relação ao estado nutricional das plantas quanto a N e K, realizou-se um experimento no viveiro da Universidade Federal de Viçosa, em Viçosa, MG ...
Adélia Aziz Alexandre Pozza, Hermínia Emília Prieto Martinez, Sérgio Luiz Caixeta, Antônio Américo Cardoso, Laércio Zambolim, Edson Ampélio Pozza   +5 more
doaj   +1 more source

Difference between isolates from brown eye spot and black spot lesions in coffee plants [PDF]

Pesquisa Agropecuária Brasileira, 2019
: The objective of this work was to evaluate the difference between the isolates from two cercospora leaf spot symptoms (brown eye spot and black spot) in relation to conidial morphology, mycelial growth, cercosporin production, and reproduction of ...
Deila Magna dos Santos Botelho, Mário Lucio Vilela de Resende, Juliana Costa de Rezende, Pedro Martins Ribeiro Júnior, Camila Cristina Lage de Andrade, Eduardo Alves, Douglas Carvalho Amaral   +6 more
doaj   +2 more sources