Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 41
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
A method for germinating perennial Cicer species Open Agri
Coyne, C.J.
Palavras-chave: Polysaccharides; Chickpeas; Grafting; Pigeonpeas; Germplasm; Relative humidity; Transplanting; Regeneration; Tillage equipment; Developmental stages.
Ano: 2005 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3229
Imagem não selecionada

Imprime registro no formato completo
Agroclimatological information about the experimental field of the SHIFT-area, ENV 23, 42, 45, 54. Repositório Alice
CORREIA, F. W. S.; LIEBEREI, R..
Throughout the entire experimental phase of the SHIFT-colaboration of Embrapa Amazonia Ocidental (Manaus-AM) and the University of Hamburg, agrometeorological data have been monitored by a Stationary Climatological Station situated directly at the experimental site (3° 8' S, 59° 52' W). These data have been compared with the ten-year means of the Embrapa Agrometeorological Station (Manaus-AM), in a latitude of 03° 08' 05" S, 60° 01' W in an altitude of 44m above sea level. The climate of the experimental field is classified as AF according to Koppen. The years 1996 and 1997 reveal climati characteristics of "El Nino" years and, thus, they allow to develop an excellent idea about short time local changes of climatic factors compared to a ten-year means.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropicl rain forests; Precipitation; Atmosphere; Radiations; Winds; Agricultura; Ar; Atmosfera; Clima; Evaporação; Floresta Tropical Úmida; Meteorologia; Precipitação Pluvial; Radiação; Temperatura; Umidade Relativa; Velocidade; Vento; Agriculture; Agroforestry; Climate; Evaporation; Meteorology; Multiple cropping; Rain; Relative humidity; Temperature; Velocity.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/668394
Imagem não selecionada

Imprime registro no formato completo
Agroclimatological information about the experimental field of the SHIFT-area, ENV 23, 42, 45, 54. Infoteca-e
CORREIA, F. W. S.; LIEBEREI, R..
Throughout the entire experimental phase of the SHIFT-colaboration of Embrapa Amazonia Ocidental (Manaus-AM) and the University of Hamburg, agrometeorological data have been monitored by a Stationary Climatological Station situated directly at the experimental site (3° 8' S, 59° 52' W). These data have been compared with the ten-year means of the Embrapa Agrometeorological Station (Manaus-AM), in a latitude of 03° 08' 05" S, 60° 01' W in an altitude of 44m above sea level. The climate of the experimental field is classified as AF according to Koppen. The years 1996 and 1997 reveal climati characteristics of "El Nino" years and, thus, they allow to develop an excellent idea about short time local changes of climatic factors compared to a ten-year means.
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropicl rain forests; Precipitation; Atmosphere; Radiations; Winds; Agricultura; Ar; Atmosfera; Clima; Evaporação; Floresta Tropical Úmida; Meteorologia; Precipitação Pluvial; Radiação; Temperatura; Umidade Relativa; Velocidade; Vento; Agriculture; Agroforestry; Climate; Evaporation; Meteorology; Multiple cropping; Rain; Relative humidity; Temperature; Velocity.
Ano: 1998 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668394
Imagem não selecionada

Imprime registro no formato completo
Aspectos epidemiológicos da vassoura-de-bruxa do cupuaçuzeiro na microrregião de Belém, PA. Repositório Alice
BENCHIMOL, R. L.; ALBUQUERQUE, F. C. de; NASCIMENTO, R. M. do..
Foi conduzido experimento no campo da Embrapa-Centro de Pesquisa Agropecuária do Trópico Úmido, em Belém, PA (1°28' S; 48°27' W), de junho/91 a maio/94, com plantas de cupuaçuzeiro (Theobroma grandiflorum (Willd. ex Spreng.) K. Schum.) com sete anos de idade, objetivando acompanhar o desenvolvimento de vassouras-de-bruxa vegetativas causadas por Crinipellis perniciosa ((Stahel) Singer), desde a sua emissão até a produção de basidiocarpos. Foram determinados coeficientes de correlação entre as variáveis epidemiológicas (emissão de vassouras, período verde, período de secamento, período pré-frutificativo, produção de basidiocarpos) e as variáveis climáticas (umidade relativa do ar máxima, brilho solar, precipitação pluvial). A emissão de vassouras...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cupuaçu; Vassoura de bruxa; Chuva; Precipitação pluvial; Unidade relativa; Theobroma grandiflorum; Crinipellis perniciosa; Belém; Pará; Amazônia; Brasil; Rain; Relative humidity.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/373204
Imagem não selecionada

Imprime registro no formato completo
Behavior of a portable solar dryer for pineapple fiber Ciência e Agrotecnologia
Moya,Róger; Solano,Marco.
In Costa Rica, there has been a growing interest to use pineapple fiber from plant, for which current processes need to be improved or new processes need to be developed, with emphasis on drying methods. This work presents the design and evaluation of the behavior of a prototype portable solar dryer in four sites of Costa Rica. The design describes the main parts of the dryer, as well as how they were constructed. The behavior was evaluated according to temperature and relative humidity inside e outside the chamber, and the influence of direct and indirect solar radiation. In order to achieve improved dryer efficiency, a dehumidifier was used to control relative humidity, and a heating system was implemented during the hours of low temperature, low solar...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Air drying; Relative humidity; Moisture content; Temperature; Solar radiation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600009
Imagem não selecionada

Imprime registro no formato completo
Boletim agrometeorológico do ano de 2006 para a estação principal da Embrapa Cerrados em Planaltina, DF. Infoteca-e
MULLER, A. G.; SILVA, F. A. M. da; FERREIRA, D. R.; BARBOSA, J. B..
ABSTRACT: The objetive of this paper was subsidized the researches developed in the experimental fields carried out in Embrapa Cerrados and regional meteorological and biometeorological studies. The daily meteorological data of the main agrometeorological station are presented in tables and the monthly averages variations in the year and in the historical series from 1975 to 2005 are presented in figures. This data was utilized to make the characterization of the year in relation to the recent period.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Cerrado; Clima; Meteorologia; Temperatuda; Umidade relativa; Precipitação pluvial; Climate; Meteorology; Temperature; Relative humidity; Precipitation.
Ano: 2007 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/572258
Imagem não selecionada

Imprime registro no formato completo
Caracterização climática da Amazônia Oriental. Infoteca-e
DINIZ, T. D. de A. S..
1986
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Climatologia: Umidade do ar; Precipitação pluvial; Brilho solar; Amazônia; Brasil; Climatology; Relative humidity; Precipitation; Solar radiation.
Ano: 1986 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/394721
Imagem não selecionada

Imprime registro no formato completo
Climatic risk of grape downy mildew (Plasmopara viticola) for the State of São Paulo, Brazil Scientia Agricola
Hamada,Emília; Ghini,Raquel; Rossi,Paulo; Pedro Júnior,Mário José; Fernandes,Jeferson Lobato.
Viticulture in Brazil has been growing in importance in recent years. In the State of São Paulo, a significant percentage of the production is basically destined to in natura consumption and, more recently, much effort has been made by institutions to revitalize the viticulture in the State. Among fungal diseases, the downy mildew (Plasmopara viticola) is one of the main diseases affecting this crop in Brazil, with extreme damage effects on its production. The objective of this study was to estimate the incidence of the downy mildew on grape under the climatic conditions of the State of São Paulo, based on a mathematical model and using Geographical Information System - GIS tools. The study considered the months from September to April, a period in which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis spp.; Geographical Information System; Temperature; Relative humidity; Leaf wetness duration.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000700010
Imagem não selecionada

Imprime registro no formato completo
Comparison of five commonly used thin-layer moisture transfer models in fitting the re-wetting data of barley CIGR Journal
Basunia, Mohammad Ali.
Five commonly cited thin-layer rewetting models, including Page, Diffusion, Approximate form of diffusion, Exponential, and Polynomial were compared for their abilities to the fit the experimental re-wetting data of barley based on the root mean square error (RMSE) and mean relative error (MRE) of estimate of the measured and simulated moisture contents.  The comparison shows the Page model is the most suitable model (average, RMSE = 0.176% d.b. and MRE = 0.713% d.b.) followed by the Diffusion model (average RMSE = 0.199% d.b. and MRE = 0.862% d.b) to fit the re-wetting experimental data of barley.  The Approximate form of diffusion, the Exponential and the Polynomial models have less fitting ability then the Page and Diffusion models for the entire period...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Post harvest technology Thin-layer; Barley; Re-wetting parameters; Temperature; Relative humidity.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2539
Imagem não selecionada

Imprime registro no formato completo
Condições micrometeorológicas da Soloteca da Embrapa Solos-RJ. Repositório Alice
LIMA, E. de P.; MINUZZI, R. B.; CORRÊA, Y. de A. L.; OLIVEIRA, C. S. de.
Soloteca é o termo utilizado no Brasil para se referir ao local onde são guardadas as amostras de solos de referência. A Soloteca da Embrapa Solos-RJ, por exemplo, armazena amostras de solos provenientes das diferentes regiões do Brasil e essas amostras precisam estar armazenadas em condições que preservem as suas características intrínsecas. Nesse sentido, o objetivo desse trabalho foi determinar as condições da temperatura do ar e umidade relativa na Soloteca da Embrapa Solos-RJ. Os dados foram coletados por três termohigrômetros, instalados no interior e no exterior do local onde as amostras são armazenadas, no período de 1° de dezembro de 2016 a 31 de março de 2017, correspondendo ao verão 2016/17. A diferença entre a média e a variância dos dados de...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Solo; Armazenamento; Temperatura; Umidade Relativa; Soil sampling; Storage; Air temperature; Relative humidity.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112130
Imagem não selecionada

Imprime registro no formato completo
CORRELATION AMONG DAMAGES CAUSED BY YELLOW BEETLE, CLIMATOLOGICAL ELEMENTS AND PRODUCTION OF GUAVA ACCESSES GROWN IN ORGANIC SYSTEM Rev. Bras. Frutic.
GALLI,JULIANA ALTAFIN; MICHELOTTO,MARCOS DONISETI; FISCHER,IVAN HERMAN; SOARES,MARIA BEATRIZ BERNARDES; MARTINS,ANTÔNIO LUCIO MELLO.
ABSTRACT The objective of this research was evaluate the damage caused by the yellow beetle on 85 guava accessions and correlations of the damage with the climatological elements and the production of fruit in an orchard of guava conducted in organic system. Ten leaves by access were analyzed containing the injury of insect attack. Each leaf had its foliar area measured by leaf area meter and, after obtaining the total area, the leaf was covered with duct tape, and measure again. The averages were compared by Scott-Knott test at 5% probability. The 15 accessions with highest average damage had the data submitted to the correlation with the minimum and maximum temperature, precipitation and relative humidity. The production was obtained by the number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Psidium guajava; Costalimaita ferruginea; Temperature; Precipitation; Relative humidity.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300402
Imagem não selecionada

Imprime registro no formato completo
Desorption isotherms of Lactuca sativa seeds AGRIAMBI
Zeymer,Juliana S.; Corrêa,Paulo C.; Oliveira,Gabriel H. H. de; Baptestini,Fernanda M.; Freitas,Rita C. P..
ABSTRACT Lactuca sativa seeds are highly sensitive to climate conditions; thus, they should be stored securely to maintain their qualitative and quantitative characteristics. Studies on hygroscopicity aim to decrease possible changes in agricultural products under specific environmental conditions. Accordingly, this study aims to develop an appropriate mathematical model to represent the desorption isotherms of Lactuca sativa seeds. The hygroscopic equilibrium was achieved using a static-gravimetric method at temperatures of 10, 20, 30, 40 and 50 °C and water activity in the range 0.11-0.96. Six mathematical models were fitted to the experimental data of the equilibrium moisture content of Lactuca sativa seeds. The best model was chosen based on the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mathematical modeling; Hygroscopic equilibrium; Relative humidity; Temperature.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000800568
Imagem não selecionada

Imprime registro no formato completo
Development and water requirements of cowpea under climate change conditions in the Brazilian semi-arid region AGRIAMBI
Cavalcante Junior,Edmilson G.; Medeiros,José F. de; Espínola Sobrinho,José; Figueirêdo,Vladimir B.; Costa,João P. N. da; Santos,Wesley de O..
ABSTRACT This study aimed to determine the impacts that climate change may cause on the development and evapotranspiration of cowpea, in semi-arid climate region of Northeast Brazil. The study was conducted in the municipalities of Apodi, Ipanguaçu and Mossoró, in the state of Rio Grande do Norte. In order to evaluate the influence of climate change on crop water consumption, changes in air temperature and relative humidity were simulated using the PRECIS climate model. Two scenarios of emissions were evaluated based on the report of the Intergovernmental Panel on Climate Change: a pessimistic named A2 and an optimistic B2. The duration of the crop cycle showed an average reduction of 14 and 23 days for the optimistic and pessimistic scenarios,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Temperature; Relative humidity; Evapotranspiration.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000900783
Imagem não selecionada

Imprime registro no formato completo
Development of a photovoltaic driven ventilation system to modified traditional Ethiopian gombisa for on-cobs-maize drying CIGR Journal
Garbaba, Chemeda Abedeta.
Mycotoxin-producing fungal growth commonly reported from traditional maize storage system in southwestern Ethiopia. Un-safe moisture content at loading and non-climatically controlled nature of gombisa results in mycoflora growth and development on maize in storage system. Therefore, this paper was aimed to develop a photovoltaic driven ventilation system fitted to modified gomibsa for natural air in-bin drying of on-cobs-maize and increase the shelf life of the product. Modified gombisa was constructed from locally available materials for the current experiment. An appropriate fan type and size, humidistat set at >70% and two 20 Wp photovoltaic panels were used for ventilation purpose, fan control and power the fan, respectively. In total 1.76 m3 of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Modified gombisa; Maize in cobs; Temperature; Relative humidity; Ventilation system..
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4850
Imagem não selecionada

Imprime registro no formato completo
Efficiency of oxygen: absorbing sachets in different relative humidities and temperatures Ciência e Agrotecnologia
Cruz,Renato Souza; Soares,Nilda de Fátima Ferreira; Andrade,Nélio José de.
The main objective of this work was to evaluate the efficiency of oxygen - absorbing sachets at relative humidity of 75%, 80% and 85% and different temperatures, 10±2 ºC and 25±2 ºC. The experiment consisted in determining the O2 absorption under these conditions. A sachet was placed in desiccators with an internal air homogenization system. Aliquots of air were removed at pre-established time intervals and analyzed for oxygen content. The results showed that oxygen absorption by the sachet increased as the relative humidity increased for both temperature. Therefore the oxygen - absorbing sachets were most active under 25±2ºC and 85% relative humidity. At ambient condition (25±2ºC/75%RH) the rate of oxygen absorbed was 50 mL/day and 18,5 mL/day for 10±2ºC....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Active packaging; Oxygen - absorbing; Relative humidity; Temperature.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542007000600029
Imagem não selecionada

Imprime registro no formato completo
Environmental and physiological factors that affect the efficacy of herbicides that inhibit the enzyme protoporphyrinogen oxidase: a literature review Planta Daninha
Matzenbacher,F.O.; Vidal,R.A.; Merotto Jr.,A; Trezzi,M.M..
Herbicides that inhibit the enzyme protoporphyrinogen oxidase (PROTOX) are usually effective to control dicotyledonous weeds and their agronomic efficacy is affected by environmental and physiological factors. The objective of this review is to summarize the knowledge of those factors available in the scientific literature in the last decade. Environmental factors that influence PROTOX inhibitors include temperature, irradiance and relative humidity. The most relevant physiological factors are the activity of enzymes that can detoxify herbicides and also of enzymes that mitigate the effects of oxidative stress in plants. The study also suggests some possible management strategies that could optimize the activity of PROTOX-inhibiting herbicides.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Temperature; Light; Relative humidity; Enzymes.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200024
Imagem não selecionada

Imprime registro no formato completo
Espacializacao da umidade relativa do ar no estado da Bahia. Repositório Alice
TEIXEIRA, A. H. de C.; SOUZA, R. A. de; RIBEIRO, P. H. B.; COSTA, W. P. L. B. da.
O objetivo deste trabalho foi obter uma equação de estimativa da umidade relativa do ar a partir de elementos do balanço hídrico climático e fazer a espacialização desse parâmetro no Estado visando a sua utilização em estudos bioclimáticos.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Espacializacao; Bahia; Climatic; Clima; Balanço Hídrico; Umidade Relativa; Climate; Relative humidity; Water balance.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/134263
Imagem não selecionada

Imprime registro no formato completo
Estimating leaf wetness duration over turfgrass, and in a 'Niagara Rosada' vineyard, in a subtropical environment Scientia Agricola
Lulu,Jorge; Sentelhas,Paulo Cesar; Pedro Júnior,Mário José; Pezzopane,José Ricardo Macedo; Blain,Gabriel Constantino.
Leaf wetness duration (LWD) is a key parameter in agrometeorology because it is related to plant disease occurrence. As LWD is seldomly measured in a standard weather station it must be estimated to run warning systems for schedule chemical disease control. The objective of the present study was to estimate LWD over turfgrass considering different models with data from a standard weather station, and to evaluate the correlation between estimated LWD over turfgrass and LWD measured in a 'Niagara Rosada' vineyard, cultivated in a hedgerow training system, in Jundiaí, São Paulo State, Brazil. The wetness sensors inside the vineyard were located at the top of the plants, deployed at an inclination angle of 45º and oriented southwest, with three replications....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis labrusca; LWD estimate; Relative humidity; Dew point temperature.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000700004
Imagem não selecionada

Imprime registro no formato completo
Estimativa e mapeamento das normais anuais de umidade relativa do ar no Estado da Paraiba. Repositório Alice
TEIXEIRA, A. H. de C.; SOUZA, R. A. de; RIBEIRO, P. H. B.; REIS, V. C. da S..
Esse trabalho tem como objetivo a obtenção de uma equação de estimativa da umidade relativa do ar, através de dados existentes desse parâmetro e do balanço hídrico climático e o mapeamento na Paraíba, visando a utilização em estudos bioclimáticos.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Meteorologia; Clima; Temperatura; Umidade relativa; Mapeamento; Paraiba; Meteorology; Climate; Temperature; Relative humidity; Clima; Climatic.
Ano: 2001 URL: http://www.alice.cnptia.embrapa.br/handle/doc/134421
Imagem não selecionada

Imprime registro no formato completo
Flight activity of stingless bee Geotrigona subterranea friese, 1901 (Apidae, Meliponini). Repositório Alice
BARBOSA, F. M.; ALVES, R. M. de O.; MENEZES, C..
2012
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Meliponini; Geotrigona subterranea; External activity; Temperature; Relative humidity.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/951621
Registros recuperados: 41
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional