Progresso da ferrugem e da cercosporiose em cafeeiro (coffea arabica l.) Com diferentes épocas de início e parcelamentos da fertirrigação

Talamini, Viviane; Pozza, Edson Ampélio; Souza, Paulo Estevão de; Silva, Antônio Marciano da

doi:10.1590/s1413-70542003000100017

Cited by 18 publications

(24 citation statements)

References 2 publications

(6 reference statements)

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“…Os resultados não significativos de (AACPS e AACPI) da ferrugem do cafeeiro submetido a diferentes critérios de irrigação (Tabela 2) foram semelhantes a resultados observados em outros ensaios (Talamini, 2001;Santos et al, 2004). Esse fato pode ser atribuído ao método de irrigação utilizado (gotejamento), no qual a distribuição de água é feita apenas no solo na região de maior concentração de raízes, não proporcionando molhamento foliar.…”

Section: Ferrugem Do Cafeeirounclassified

Progresso da ferrugem do cafeeiro irrigado em diferentes densidades de plantio pós-poda

et al. 2011

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Objetivou-se, no presente trabalho, avaliar o efeito de diferentes critérios para manejo da irrigação em quatro densidades de plantio, sob sistema de gotejamento na incidência e severidade da ferrugem do cafeeiro e avaliar a influência do enfolhamento na curva de progresso dessa doença. Conduziu-se, o experimento, em área experimental da Universidade Federal de Lavras MG, utilizando a cultivar Rubi MG-1192 com seis anos. O delineamento experimental foi em blocos ao acaso com quatro repetições. Os tratamentos foram constituídos por quatro parcelas representadas pelas densidades de plantio (convencionais e adensados): 2500 (4,0x1,0 m), 3333 (3,0x1,0 m), 5000 (2,0x1,0 m), 10000 (2,0x0,5 m) plantas ha-1, quatro subparcelas sendo: irrigações quando a tensão da água no solo atingiu valores de 20 e 60kPa; irrigações utilizando o manejo do balanço hídrico (calculado através do software IRRIPLUS), com turnos de irrigação fixos de três dias por semana e uma testemunha sem irrigação, perfazendo um total de 16 tratamentos. Cada subparcela foi constituída por 10 plantas, sendo consideradas como plantas úteis as seis centrais. Foram avaliadas a incidência e severidade da ferrugem e a porcentagem de enfolhamento das plantas de cafeeiros. Após análise estatística, os dados foram convertidos em área abaixo da curva de progresso da doença e do crescimento. Verificou-se que os critérios para manejo da irrigação influenciaram a curva de progresso do crescimento, porém, não interferiu na curva de progresso da incidência e da severidade da ferrugem. Os sistemas de plantios adensados favoreceram a incidência da ferrugem. Mas as densidades de plantio não interferiram no enfolhamento.

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Section: Ferrugem Do Cafeeirounclassified

Progresso da ferrugem do cafeeiro irrigado em diferentes densidades de plantio pós-poda

et al. 2011

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“…Growth and maturation of the fruits occurred during this period, which required greater energy expenditure by the plant. According to Botelho et al (2011), Garcia Júnior et al (2003, Santos et al (2008) and Talamini et al (2001), this environment with little shading and nutritional imbalances (particularly with respect to nitrogen and potassium) directly affects the intensity of cercospora leaf spot attacks.…”

Section: Resultsmentioning

confidence: 99%

“…The climatic conditions of high relative humidity and temperature (between 10 and 25 °C) are favorable to C. coffeicola (ZAMBOLIM et al, 1997). In addition, periods of prolonged drought and plant water deficit favor its attack (TALAMINI et al, 2001). The availability of water may have been greater in the coffee trees grown under shade during the period of low rainfall (from May to July of 2008 and 2010).…”

Section: Resultsmentioning

confidence: 99%

Cercosporiose progression in the agroforestry consortium coffee-rubber trees

et al. 2015

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Cercospora coffeicola is one of the primary diseases that affect coffee plants. Studies indicate that shaded coffee plants reduce the incidence of this disease and that the management of trees and coffee plants arrangement influence in the dissemination of cercospora. The objective of this study was to evaluate the incidence and severity of C. coffeicola at different distances from double rows of rubber trees (Hevea brasiliensis muell. arg.) at two different sunlight exposures (north and south). This study was conducted in Londrina, Parana, between 2008 and 2010, with adult plants of the IAPAR 59 cultivar (Coffea arabica L.) grown at a spacing of 2.5 m x 1.0 m. The distances between the double rows of rubber trees were 13, 16 and 22 m, compared to plants grown under full sun. The disease incidence was assessed monthly by using a non-destructive method. This analysis was conducted on coffee leaves from the third and fourth pairs of two plagiotropic branches, on eight plants per plot, with five replications. These data were used to calculate the area under the curve for the incidence of the brown eye spot. The highest disease incidence occurred in the coffee plants grown under full sun, whereas lowest disease occurred on plants located at up to two meters away from double rows of rubber trees. The incidence of Cercospora leaf spot increased with the distance from the double rows of rubber trees. The results demonstrate that the mapping of cercospora incidence in shaded coffee plants is essential to determinate the best spacing and plants arrangement. (Coffea arabica L). As distâncias entre seringueira em filas duplas foram de 13, 16 e 22 m, comparadas com plantio a pleno sol. A avaliação da incidência da doença foi realizada por método não destrutivo, por meio da contagem de folhas doentes nas folhas do terceiro e quarto pares de dois ramos plagiotrópicos dos cafeeiros. Com base nesses dados calculou-se a área abaixo da curva de progresso da incidência da cercosporiose. A maior incidência da doença ocorreu nos cafeeiros cultivados a pleno sol. Os cafeeiros cultivados até dois metros distantes das seringueiras em filas duplas apresentaram menor incidência da doença. A incidência de cercosporiose do cafeeiro aumentou com o incremento da distância das plantas em relação às seringueiras em filas duplas. Os resultados demonstram que o mapeamento da incidência da cercospora em cafeeiros arborizados é fundamental para a determinação dos melhores espaçamentos e disposição das plantas.

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“…Although the climate in the south of Minas Gerais State, Brazil, where approximately 25% of the coffee is produced in this country, is favourable for growing coffee, the region has suffered water stress during critical periods for crops (Coelho, Silva, Rezende, Silva, & Custódio, ; Lima et al., ). In this area, studies comparing drip‐irrigated and rainfed crops concluded that irrigation can be an alternative method to reduce the intensity of coffee diseases and to increase productivity (Talamini, Pozza, Souza, & Silva, ). Irrigation also enables the supply of fertilizers and the split application of fertilizers through fertigation (Coelho et al., ; Silva, Teodoro, & Mello, ), which increases humidity in a narrow strip of soil and thus saturates fixation at sites near the point of application (Zanini, Barreto, Foratto, & Natale, ) and enables nutrient absorption.…”

Section: Introductionmentioning

confidence: 99%

Temporal analysis of brown eye spot of coffee and its response to the interaction of irrigation with phosphorous levels

Chaves

Pozza

Neto

et al. 2018

Journal of Phytopathology

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Brown eye spot (BES—Cercospora coffeicola) is a major disease of coffee, and its occurrence is affected by water supply and nutritional balance. Little is known about the effect of phosphorous (P) on coffee fields under irrigation. Thus, this study evaluated the effect of the interaction between different water application levels and phosphorus levels (5 irrigation levels × 4 phosphorus levels) on the intensity of this disease. The area under the incidence progress curve (AUIPC) was calculated and subjected to analysis of variance. The progress curve of the average incidence of BES varied in both evaluation years. In Year 1 (November 2011 to December 2012), the incidence peaked on August 12, 2012 (22.45%), while in Year 2 (January 2013 to January 2014), the incidence reached its highest level on September 12, 2013 (16.29%). The exponential nonlinear model was adjusted for the two years. There was an interaction between irrigation and phosphorus levels on October 07, 2012. The incidence interacted significantly with the harvest dates. On the first evaluation date, an increase in phosphorus levels at shallower irrigation depths and an absence of phosphate fertilizer at higher irrigation levels caused higher incidences.

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Progresso da ferrugem e da cercosporiose em cafeeiro (coffea arabica l.) Com diferentes épocas de início e parcelamentos da fertirrigação

Cited by 18 publications

References 2 publications

Progresso da ferrugem do cafeeiro irrigado em diferentes densidades de plantio pós-poda

Progresso da ferrugem do cafeeiro irrigado em diferentes densidades de plantio pós-poda

Cercosporiose progression in the agroforestry consortium coffee-rubber trees

Temporal analysis of brown eye spot of coffee and its response to the interaction of irrigation with phosphorous levels

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