A5055830133- Coffee research and impacts
- Growth and nutrition in plants
- Agricultural and Food Sciences
- Photosynthetic Processes and Mechanisms
- Soil Management and Crop Yield
- Light effects on plants
- Banana Cultivation and Research
- Sugarcane Cultivation and Processing
- Photoreceptor and optogenetics research
- Cardiac pacing and defibrillation studies
- Soil Geostatistics and Mapping
- Leaf Properties and Growth Measurement
- Crop Yield and Soil Fertility
- Cardiac Imaging and Diagnostics
- Geography and Environmental Studies
- Smart Agriculture and AI
- Soybean genetics and cultivation
- Greenhouse Technology and Climate Control
- Environmental and biological studies
- Plant responses to elevated CO2
- Plant Stress Responses and Tolerance
- Soil Carbon and Nitrogen Dynamics
- Spectroscopy and Quantum Chemical Studies
- Advanced MRI Techniques and Applications
- Plant and soil sciences
Brazilian Agricultural Research Corporation
2005-2025
Gastro Obeso Center
2023
Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2023
Universidad Marcelino Champagnat
2023
Hospital de Santa Cruz
2022
Universidade Federal do Pampa
2019-2022
Computer Algorithms for Medicine
2018
Universidade Estadual de Campinas (UNICAMP)
2016
Universidade de Brasília
2016
Lusíada University of Lisbon
2013
Drought is a widespread limiting factor in coffee plants. It affects plant development, fruit production, bean development and consequently beverage quality. Genetic diversity for drought tolerance exists within the genus. However, molecular mechanisms underlying adaptation of plants to are largely unknown. In this study, we compared responses two commercial cultivars (IAPAR59, drought-tolerant Rubi, drought-susceptible) Coffea arabica grown field under control (irrigation) conditions using...
There is an urgent need to understand the relationship between SARS-CoV-2 infection and anosmia, one of most notable sequelae, especially in early variants during 2020 pandemic, as there are cases where such a sequel resulted partial delayed recovery. Due scarcity studies consistently correlating olfactory loss with COVID-19 its incomplete and/or late recovery, it becomes imperative analyze available scientific material through systematic reviews, aiming for more robust contribution...
In higher plants, the inhibition of photosynthetic capacity under drought is attributable to stomatal and non-stomatal (i.e., photochemical biochemical) effects. particular, a disruption metabolism Rubisco regulation can be observed. Several studies reported reduced expression RBCS genes, which encode small subunit, water stress. Expression RBCS1 gene was analysed in allopolyploid context C. arabica, originates from natural cross between canephora eugenioides species. Our study revealed...
SUMMARY Controlled irrigation during the dry period associated with adequate nitrogen (N), phosphorous (P) and potassium (K) fertilization led to accumulation of biochemical compounds in coffee beans considered as positive precursors beverage quality. Adult plants ( Coffea arabica ‘Rubi’) were cultivated using different water regimes (WR) conditions under climate Brazilian Cerrado. Coffee-bean physical characteristics evaluated well composition by near-infrared analysis. The K treatment...
Homogeneous management zones (HMZs) delineation is important for the application of precision agriculture because farm decisions are based on it. Diverse soil chemical characteristics HMZs delineation. However, summarizing several variables into homogeneous zoning while taking account spatial distribution pattern a challenge. Addressing this challenge to produce oriented practical use farmers. In work, 17 were jointly analyzed HMZ by using indicator kriging (IK) interpolate fertility index...
Natural variation for photosynthetic traits was studied by determining chlorophyll fluorescence parameters in a collection of Arabidopsis accessions. This screen revealed only one single accession (Ely), exhibiting characteristics markedly different from all others, while few lines showed small but significant variation. Detailed genetic and physiological analyses reduced fitness Ely compared with the standard laboratory strain Ler various growth parameters. At low temperature (15 °C), had...
The effects of ultraviolet-B (UV-B) radiation on photosystem II (PS II) were studied in leaves Chenopodium album. After the treatment with UV-B damage was estimated using chlorophyll a fluorescence techniques. Measurements modulated pulse amplitude fluorometer revealed that efficiency decreased both increasing time and intensity UV-B. Fluorescence induction rise curves analyzed mechanistic model energy trapping. It appears by occurs first at acceptor side II, only later donor side.
Abstract The objective of this work was to evaluate the effect irrigation and presence brachiaria (Urochloa decumbens) between coffee (Coffea arabica) rows on yield chemical hydrophysical attributes a Typic Haplustox. study conducted in Cerrado region Planaltina, Brasília, DF, Brazil, randomized complete block design, arranged split-split plots, with four replicates. Water regimes (irrigated or rainfed) were assigned main inter-row management systems subplots, soil layers sub-subplots....
Cultivar differences in leaf photosynthesis (LPS) and grain yield of wheat [Triticum aestivum L.] were examined under irrigated non conditions Cerrados, a semi-arid region Brazil. Twelve Brazilian, five Mexican two Japanese cultivars used this project. The plants grown low planting density to elucidate the relationship between LPS potential an individual plant. Brazilian ranked high LPS, followed by non-irrigated conditions, although there practically no among these three groups conditions....
Este trabalho foi desenvolvido na área experimental da Embrapa-Centro de Pesquisa Agropecuária dos Cerrados (CPAC) com o objetivo estudar os efeitos diferentes regimes hídricos e doses N sobre a produtividade componentes produção feijão Pérola (Phaseolus vulgaris L.) cultivado após milho, região cerrado. As aplicações água foram feitas quando tensão no solo, medida 10 cm profundidade, atingia valores 41, 55, 75 300 kPa. testadas foram: 0, 40, 80 160 kg/ha. parceladas em duas aplicações,...
O trabalho objetivou estudar os crescimentos vegetativo e reprodutivo a produtividade de cafeeiro sob três regimes hídricos quatro doses adubação fosfatada, no segundo ano após poda, em solo Cerrado. A cultivar utilizada foi Catuaí Rubi MG 1192, Coffea arabica L., com 7.143 plantas ha-1. Os aplicados foram: sem suspensão da irrigação, feita o todo (I); partir 24/6/07, irrigação por 70 dias (SI70); 109 (SI109). tratamentos SI70 SI109 foram interrompidos uma chuva 12 mm (1.º/10/07), que...
The effects of water deficit on the gene CaM6PR expression, encoding mannose -6- phosphate reductase, were evaluated in coffee trees formation phase cultivars IAPAR59 ( Villa Sarchi x Timor hybrid HT832 / 2) and RUBI MG 1192 (Mundo Novo Catuai ) Coffea arabica, respectively regarded as tolerant sensitive to stress. planted December 2007 experimental field Embrapa Cerrados - DF CPAC culturedfor two years (2008 2009 with (I) without NI irrigation. For each year assessments carried out (P1, not...
The light-induced chlorophyll fluorescence increase in dark-adapted leaves and chloroplasts upon a 1s light pulse shows the following characteristics: i) half time of initial is not inversely related to intensity at excitation rates above 5*103 s-1; ii) sigmoidal rise order 103 s-1 converts into an exponential range 104-105 s-1, iii) rate constant becomes invariable high modulates with redox state oxygen evolving complex (OEC). Numerical solutions differential equations for double hit...
Phenotypic characterization of coffee cultivars under an irrigation system, as well adaptability to controlled water stress, aiming at flowering uniformity, high yield and grain quality, plays important role in production the cerrado areas. A field trial was carried out evaluate agronomic performance arabica different regimes, using center pivot irrigation: throughout year (WR1); suspended end June for 40 days until leaf potential reached -1.5 MPa (WR2); 70 -2.3 (WR3); 100 -3.4 (WR4); a...
Notícias e relatórios de segurança sobre vazamentos dados sensíveis têm surgido com uma frequência cada vez maior. Muitos desses vazamentos, cujo volume criticidade são altos, afetado empresas governos forma significativa. Este cenário, cuja perspectiva é apenas piorar, tem chamado tanta atenção dos que da informação virou das maiores prioridades estado em muitos países. trabalho por objetivo apresentar um histórico o impacto socioeconômico mais significativos últimos anos. Adicionalmente,...