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Diversidade genética de genótipos de Coffea arabica em condições de Cerrado do Planalto Central do Brasil. Repositório Alice
SANTOS, C. S. dos; PEREIRA, F. A. C.; CARVALHO, M. A. de F.; MENDES, A. N. G.; RODRIGUES, G. C.; VEIGA, A. D..
A caracterização de germoplasma permite quantificar e utilizar a variabilidade genética disponível de forma eficiente. Diante disso, o objetivo do trabalho foi avaliar a diversidade de genótipos de Coffea arabica quanto às características fisiológicas relacionadas às trocas gasosas em condições de Cerrado do Planalto Central do Brasil.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Cerrado; Genótipo; Germoplasma; Coffea Arábica; Fisiologia; Banco de Germoplasma; Coffea arabica var. arabica.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103264
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Foliar fertilizers for the management of phoma leaf spot on coffee seedlings. Repositório Alice
SILVA JÚNIOR, M. B. da; POZZA, E. A.; RESENDE, M. L. V.; RIBEIRO JUNIOR, P. M.; COSTA, B. H. G.; CARVALHO, C. A.; RESENDE, A. R. M.; BOTELHOS, D. M. dos.
The growing demand for alternative strategies for plant disease management has sought a reduction in the use of fungicides via the employment of resistance inducers and foliar fertilizers, among others. Therefore, this study aimed at evaluating the following foliar fertilizers for the management of phoma leaf spot: a foliar fertilizer based on macro-and micronutrients (Fmm: 10% N, 4% S, B, 5% Fe and 5% Zn); one based on cobalt and molybdenum (Fcm: 2% Co and 3% Mo); manganese phosphite (FMn: 30% P2O5 and 9% Mn); and the FMn+Fmm, Fcm+Fmm and FMn+Fcm+Fmm associations compared to a boscalid fungicide and a control with no treatment. The disease severity, the chlorophyll a and b contents, the net photosynthetic rate (LPR), the phenylalanine ammonia lyase (PAL)...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Controle alternativo; Café; Doença; Phoma; Nutriente; Plant diseases and disorders; Coffea arabica var. arabica.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100251
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Germination vigour versus delayed luminescence of coffee seeds: preliminary series. Repositório Alice
GALLEP, C. M.; AMARAL, E. M. do; ALONCO, G. C.; MALUF, M. P.; PADILHA, L..
Nine coffee seeds samples submitted to different post-harvest treatments were tested in terms of ultra-weak delayed luminescence and induced to germinate afterwards. Hyperbolic decay function was used to quantify the time profiles and their fitting parameters were correlated to the correspondent germination vigour (total seedlings' elongation). Good linear relation was found (R2 > 0.85) for the initial value parameter as well as for the decay velocity parameter. These preliminary results point to further tests in order to validate a photonic, non-invasive, non-destructive test for coffee seed's viability analyses.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Germinação; Iluminação; Semente; Café; Delayed hypersensitivity; Luminescence; Seed germination; Coffea arabica var. arabica; Postharvest treatment.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126758
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Identification of physiological analysis parameters associated with coffee beverage quality. Repositório Alice
FREITAS, M. N. de; ROSA, S. D. V. F. da; PEREIRA, C. C.; MALTA, M. R.; DIAS, C. T. dos S..
The demand for high-quality coffee among consumers has generated a great deal of interest among producers in serving this market. Parameters for physiological analyses that can be associated with aspects of sensory analyses of coffee can ensure more reliable results for coffee quality assessments. The aim of this study was to investigate the potential of physiological analyses in determining coffee quality through multivariate analysis. Several samples from coffee bean/seed lots were placed in cold storage at 10 °C, after which the sensory quality, physiological quality, and chemical characteristics of the beans were evaluated before storage and after three and six months of storage. The variables of physiological quality in the coffee beans were...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Análise Qualitativa; Fisiologia; Café; Coffea arabica var. arabica; Seed quality.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1123342
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Incorporating Beauveria bassiana into an integrated pest management plan for coffee berry borer in Hawaii. Repositório Alice
HOLLINGSWORTH, R. G.; ARISTIZÁBAL, L. F.; SHRINER, S.; MASCARIN, G. M.; MORAL, R. de A.; ARTHURS, S. P..
Since its recent establishment in Hawaii, the coffee berry borer (CBB), Hypothenemus hampei (Coleoptera: Curculionidae), threatens yields, quality, and price of coffee production. A limited number of insecticides (primarily Beauveria bassiana) are used to control CBB with minimal disruption in this agroecosystem. We evaluated two insecticide spray strategies across eight coffee farms in the Kona and Ka?u districts of Hawaii Island. Coffee growers sprayed insecticides approximately monthly (calendar basis) or else in response to CBB field monitoring data (threshold based). Overall, farms adopting spray thresholds performed more insecticide applications early in the season (May to July), but significantly fewer overall, when compared with calendar-based...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Mycoinsecticide; Coffee farms; Fungo Para Controle Biológico; Beauveria Bassiana; Praga de Planta; Hypothenemus Hampei; Café; Controle Biológico; Biological control agents; Entomopathogenic fungi; Insect pests; Biological control; Coffea arabica var. arabica.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125356
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Organic matter of tropical soil with coffee growth in CO2 enriched atmosphere. Repositório Alice
RIBEIRINHO, V. S.; CARVALHO, C. S.; RAMOS, N. P.; PACKER, A. P.; MILORI, D. M. B. P.; SANTOS, J. de O.; CERRI, C. E. P.; ANDRADE, C. A. de.
The increase of atmospheric CO2 should result in higher carbon fixation by plants of the C3 photosynthetic cycle, such as coffee. However, not much is known about the relationship between atmospheric CO2 increase, higher carbon fixation through photosynthesis and the potential carbon sequestration in soil. Based on the hypothesis that there will be greater stabilization of carbon in soil due to increase of atmospheric CO2 concentration, the study was carried a field coffee grown area with FACE (Free-Air Carbon dioxide Enrichment) system. The CO2 enrichment treatment maintained the concentration of this gas 200 ?mol mol-1 above the ambient value. The stocks of carbon and nitrogen in soil and some attributes related to the humification of organic matter were...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Carbon stock; Humification index; Café; Matéria Orgânica; Solo Tropical; Coffea arabica var. arabica; Humic substances; Free air carbon dioxide enrichment.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121331
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Sucrose in detoxification of coffee plants with glyphosate drift. Repositório Alice
ALECRIM, A. O.; GUIMARÃES, R. J.; CASTANHEIRA, D. T.; REZENDE, T. T.; CARVALHO, M. A. de F.; VOLTOLINI, G. B..
The weed control in coffee plants has great importance, as they compete for light, water and nutrients. The chemical control is the most used, emphasizing the glyphosate, however, when applied, drift can occur and consequently cause injuries to coffee. Many farmers use the sucrose application with the objective to reverse the damage caused by the herbicide drift, even without scientific basis to justify such action. The objective of this study was to evaluate the effect of the sucrose application on the detoxification of coffee plants in the implantation phase with glyphosate drift. The experiment was carried out in a greenhouse, using a randomized block design, arranged in a 3 x 3 factorial scheme with 2 additional treatments, using 3 sucrose doses (2, 4...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Coffea Arábica; Anatomia Vegetal; Fisiologia Vegetal; Intoxicação; Herbicida; Coffea arabica var. arabica; Plant anatomy; Plant physiology; Herbicides.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124699
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Women in coffee in Brazil. Repositório Alice
ARZABE, C.; MACIEIRA, J. C.; MENEZES, R. S. S.; BALIZA, D. P.; MOURÃO, T. F..
This book intends to dimension the important role women play in the coffee sector. It is product of many people and institutions: a multidisciplinary network with women artists, film‐makers, photographers, researchers, agronomists, social scientists, domestic economists, biologists, historians, statisticians, geographers, political scientists and journalists, who, from a joint effort, were able to offer a first portrait about the women in coffee in Brazil, with emphasis on rural women. This network also involved important funders, who allowed the work to succeed. The union of ?doers? and ?payers? happened from the beginning, and was extended over time, serving as leaven and motivation for all. This co-creation was possible through several...
Tipo: Livro científico (ALICE) Palavras-chave: Agricultura Familiar; Cafeicultura; Indústria Agrícola; Mulher Rural; Family farms; Coffea arabica var. arabica; Rural women; Agricultural industry; Agribusiness.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1098991
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