Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 49
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
Acumulação de massa seca e de nutrientes por duas cultivares de milho com e sem irrigação suplementar. Repositório Alice
VASCONCELLOS, C. A.; BARBOSA, J. V. A.; SANTOS, H. L. dos; FRANCA, G. E. de.
O trabalho teve o objetivo de verificar possiveis diferencas na acumulacao de massa seca, N, P, K, Ca, Mg e Zn entre duas cultivares de milho, BR 105 e BR 126, com e sem irrigacao suplementar por aspersao. Os tratamentos, dispostos em blocos, ao acaso, com duas repeticoes, foram constituidos por epocas de amostragem das plantas com 15, 35, 56, 78, 119 e 140 dias apos a germinacao. Para as respectivas analises quimicas e determinacao do peso seco, as plantas foram divididas em folhas, caules, palha, sabugo e graos. Constatou-se que ambas as cultivares apresentaram decrescimo de producao na ausencia de irrigacao suplementar. Nestas condicoes, a cultivar BR 105 apresentou decrescimo na translocacao de nutrientes para os graos, sem contudo, haver alteracoes...
Tipo: Artigo de periódico Palavras-chave: Nutrientes; Decrescimo; Massa seca; Dry matter; Nutrient translocation; Maize; Emergence; Grain production; Reduced; Aspersão; Germinação; Irrigação; Milho; Nutrição; Produção; Translocação; Sprinkler irrigation.
Ano: 1983 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/471667
Imagem não selecionada

Imprime registro no formato completo
Adiamento da semeadura de sementes de castanha-do-brasil. Infoteca-e
FIGUEIREDO, F. J. C.; CARVALHO, J. E. U. de.
bitstream/item/32015/1/CPATU-BP112.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Castanha-do-brasil; Teor; Qualidade fisiologica; Belem; Pará; Brasil; Brazil nut; Emergence; Vigour; Seed; Seeding; Physiological quality.; Bertholletia Excelsa; Emergência; Semeadura; Semente; Umidade.; Amazonia; Humidity; Vigor..
Ano: 1990 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381768
Imagem não selecionada

Imprime registro no formato completo
Alternative procedure for the cold test for soybean seeds Scientia Agricola
Vieira,Bruno Guilherme Torres Licursi; Vieira,Roberval Daiton; Krzyzanowski,Francisco Carlos; França Neto,José de Barros.
The growing demand for high quality soybean [Glycine max (L.) Merrill] seeds requires a precise seed quality control system from the seed industry. One way to accomplish this is by improving vigor testing. Cold test has been traditionally employed for corn seeds. However, it has also been used for other seed crops such as cotton (Gossypium spp.), soybean (Glycine Max), dry bean (Phaseolus vulgaris) and pea (Pisum sativum). This study was carried out with the objective of adjusting an alternative procedure for the cold test to determine soybean seed vigor. Six commercial soybean seed lots of the cultivar BRS 133 were used. The physiological potential of the seed lots was evaluated by germination on paper towel and sand box, seedling field emergence,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max (L.) Merrill; Physiological potential; Emergence; Vigor tests.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500007
Imagem não selecionada

Imprime registro no formato completo
Broccoli production depending on the seed production system and organic and mineral fertilizer Horticultura Brasileira
Lopes,José Carlos; Mauri,Janaína; Ferreira,Adésio; Alexandre,Rodrigo S; Freitas,Allan R de.
The experiment was conducted in a greenhouse at the Universidade Federal do Espirito Santo, in Alegre, Espirito Santo state, Brazil, to evaluate the broccoli production depending on the seed production system and organic and mineral fertilization. Seeds of the broccoli cultivar Ramoso Piracicaba were originated from lots of seed obtained in an organic and conventional production system. The experimental design was of randomized blocks, with four replications in a factorial arrangement combination of the lots, 2x5 (organic and mineral fertilized seeds) and substrates [S1 (soil + sand + manure), S2 (soil + sand + manure + NPK), S3 (soil + sand + manure + Fertium® 10 g L-1), S4 (soil + sand + manure + Fertium® 30 g L-1) and S5 (soil + sand + manure + Fertium®...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brassica oleracea var. italica; Emergence; Productivity; Plant nutrition; Substrate.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000100024
Imagem não selecionada

Imprime registro no formato completo
Calidad física y fisiológica en semillas de híbridos de maíz de los valles altos centrales de México y su relación con el establecimiento en campo. Colegio de Postgraduados
Bustamante Zepeda, Jimena E..
La calidad de las semillas es un elemento de suma importancia para los productores, por tal motivo las pruebas de calidad física y fisiológica son primordiales para estimar eficacia. En el presente estudio se efectuaron dichas pruebas en semillas de 18 híbridos comerciales de maíz de los Valles Altos Centrales de México. Se utilizaron el laboratorio y almaciguero del programa de semillas del Colegio de Postgraduados, además de cuatro localidades del Estado de México. En laboratorio se midieron las variables: porcentaje de germinación al primer conteo, contenido de humedad, peso volumétrico, análisis de pureza, condición del pedicelo, peso de mil semillas y se reclasificó a la semilla en seis tamaños. En almaciguero se sembró semilla en dos condiciones...
Palavras-chave: Calidad; Emergencia; Establecimiento; Germinación; Vigor; Quality; Emergence; Establishment; Germination; Vigor; Maestría; Producción de semillas.
Ano: 2010 URL: http://hdl.handle.net/10521/215
Imagem não selecionada

Imprime registro no formato completo
Calidad física y fisiológica en semillas de híbridos de maíz de los valles altos centrales de México y su relación con el establecimiento en campo. Colegio de Postgraduados
Bustamante Zepeda, Jimena E..
La calidad de las semillas es un elemento de suma importancia para los productores, por tal motivo las pruebas de calidad física y fisiológica son primordiales para estimar eficacia. En el presente estudio se efectuaron dichas pruebas en semillas de 18 híbridos comerciales de maíz de los Valles Altos Centrales de México. Se utilizaron el laboratorio y almaciguero del programa de semillas del Colegio de Postgraduados, además de cuatro localidades del Estado de México. En laboratorio se midieron las variables: porcentaje de germinación al primer conteo, contenido de humedad, peso volumétrico, análisis de pureza, condición del pedicelo, peso de mil semillas y se reclasificó a la semilla en seis tamaños. En almaciguero se sembró semilla en dos condiciones...
Palavras-chave: Calidad; Emergencia; Establecimiento; Germinación; Vigor; Quality; Emergence; Establishment; Germination; Vigor; Maestría; Producción de semillas.
Ano: 2010 URL: http://hdl.handle.net/10521/215
Imagem não selecionada

Imprime registro no formato completo
Calling behaviour and evaluation of sex pheromone glands extract of Neoleucinodes elegantalis Guenée (Lepidoptera: Crambidae) in wind tunnel Anais da SEB
Eiras,Álvaro E..
Adult emergence and mating behavior of Neoleucinodes elegantalis Guenée were studied under laboratory conditions (23 ± 1°C, 12 h photophase and 70% RH). Adult emergence occurred only at scotophase period. Female began to emerge from the 1st hour to 8th hour with a peak occurring at 4th hour of scotophase. Male showed similar trend, but emerging from 2nd to 11th with a peak also at 4th hour of scotophase. Mating was preceded by wing vibration in the male prior to and during walking approach. Mating occurred only during the scotophase period between the 4th and 10th hour of scotophase, with the peak occurring at the 7th hour. Newly emerged N. elegantalis couples rarely mated (2.8%) whereas 48 and 96 h old couples mated 26.3% and 27.5% respectively. Glands...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Tomato-fruit borer; Emergence; Copulation.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300007
Imagem não selecionada

Imprime registro no formato completo
Cambios de acidez en hojas del maguey Agave salmiana Otto Ex Salm-Dyck dependientes de la edad de la hoja y la planta. Colegio de Postgraduados
Vázquez Díaz, Erasmo.
Se evaluaron los cambios de acidez titulable cada cuatro horas durante un ciclo de 24 h y la acumulada en el periodo diurno y nocturno de dicho ciclo. Lo anterior de hojas cotiledonares y hojas laterales con edad promedio de uno y hasta cinco meses de las variantes Blanco, Chino y Liso del maguey Agave salmiana de San Luis Potosí, México. Las plantas se obtuvieron a partir de semillas y crecieron en invernadero en el Colegio de Postgraduados en verano y otoño del 2008 y en verano del 2009 sin restricción de humedad y fotoperiodo natural. También se evaluaron las características morfológicas de las semillas de las tres variantes. Se investigo el tiempo y la proporción de la emergencia de la plántula (emergencia de la hoja cotiledonar) y fueron registradas...
Palavras-chave: Agave salmiana; Biomasa; Dimensiones de semilla; Emergencia y desarrollo de la plántula; Acido málico; Acidez titulable; Hojas de maguey; MAC; Seed mass and dimensions; Emergence; Seedling development; Malic acid; Titratable acidity; Maguey leaves; CAM; Maestría; Botánica.
Ano: 2010 URL: http://hdl.handle.net/10521/164
Imagem não selecionada

Imprime registro no formato completo
Cambios de acidez en hojas del maguey Agave salmiana Otto Ex Salm-Dyck dependientes de la edad de la hoja y la planta. Colegio de Postgraduados
Vázquez Díaz, Erasmo.
Se evaluaron los cambios de acidez titulable cada cuatro horas durante un ciclo de 24 h y la acumulada en el periodo diurno y nocturno de dicho ciclo. Lo anterior de hojas cotiledonares y hojas laterales con edad promedio de uno y hasta cinco meses de las variantes Blanco, Chino y Liso del maguey Agave salmiana de San Luis Potosí, México. Las plantas se obtuvieron a partir de semillas y crecieron en invernadero en el Colegio de Postgraduados en verano y otoño del 2008 y en verano del 2009 sin restricción de humedad y fotoperiodo natural. También se evaluaron las características morfológicas de las semillas de las tres variantes. Se investigo el tiempo y la proporción de la emergencia de la plántula (emergencia de la hoja cotiledonar) y fueron registradas...
Palavras-chave: Agave salmiana; Biomasa; Dimensiones de semilla; Emergencia y desarrollo de la plántula; Acido málico; Acidez titulable; Hojas de maguey; MAC; Seed mass and dimensions; Emergence; Seedling development; Malic acid; Titratable acidity; Maguey leaves; CAM; Maestría; Botánica.
Ano: 2010 URL: http://hdl.handle.net/10521/164
Imagem não selecionada

Imprime registro no formato completo
Color polymorphism in Chauliognathus flavipes Fabricius (Coleoptera, Cantharidae): II. Patterns of emergence of morphs and mating system Zoologia
Machado,Vilmar; Araújo,Aldo Mellender de.
This study presents data on the color polymorphism in Chauliognathus flavipes Fabricius 1781 (Coleoptera, Cantharidae), analysing the variations in the emergence pattern of phenotypic classes for elytra color and mating system. The frequency of the phenotypic classes varies significantly throughout the season (males:X² = 59,705; females: X² = 61,017; 10 gl; p<0.001) being similar in males and females. The frequency of classes does not differ significantly among the insects that were copulating and those that were not copulating at the time of collection, i.e., the matings are random for elytra color patterns. The variations observed in frequency of phenotypic classes are not influenced by factors associated with sex. Furthermore, the elytra color...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Polymorphism; Phenotypic class; Emergence; Assortative mating; Coleoptera.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200010
Imagem não selecionada

Imprime registro no formato completo
Control of Jointvetch (Aeschynomene spp.), Establishment and Productivity of Rice as a Function of [Imazapic + Imazapyr] Doses. Repositório Alice
CONCENCO, G.; ANDRES, A.; SCHREIBER, F.; MOISINHO, I. S.; MARTINS, M. B..
Tipo: Artigo de periódico Palavras-chave: Emergence; Infestation; Aeschynomene spp; Oryza Sativa.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1095181
Imagem não selecionada

Imprime registro no formato completo
Cycle du mercure en estuaire, baie de Seine et pays de Caux ArchiMer
Laurier, Fabien.
The Seine estuary and its adjacent region Pays de Caux are two significant sources of mercury for coastal marine environments. It is carried through fluvial means for the Seine bay and through karstic fresh water emergences for Pays de Caux's coastal area. Mercury cycle in the Seine estuary and bay is affected by additional anthropical activities. The estuary's maximal turbidity area acts like a trap and a chemical reactor for fluvial mercury. Within this area, we can confirm: (i) the non conservative behaviour of dissolved mercury; (ii) mercury enrichment of particles when comparing the Seine's and marine environment and we suggest mercury particle redistribution from the organic fraction to the oxyhydroxydes fraction. A large fraction of mercury is...
Tipo: Text Palavras-chave: Bay of Seine; Pays de Caux; Estuary; Coastal zone; Speciation; Bioavailability; Mercury; Pays de Caux; Seine; Estuaire; Emergence; Zone côtière; Spéciation; Biodisponibilité; Mercure.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/these-1842.pdf
Imagem não selecionada

Imprime registro no formato completo
Diagnosis of vibriosis in the era of genomics: lessons from invertebrates ArchiMer
Le Roux, Frederique.
Global changes linked to increases in temperature and ocean acidification, but also to more direct anthropogenic influences such as aquaculture, have caused a worldwide increase in the reports of Vibrio-associated illnesses affecting humans and also animals such as shrimp and molluscs. Investigation of the emergence of Vibrio pathogenesis events requires the analysis of microbial evolution at the gene, genome and population levels, in order to identify genomic modifications linked to increased virulence, resistance and/or prevalence, or to recent host shift. From a more applied point of view, the elucidation of virulence mechanisms is a prerequisite to devising prophylactic methods to fight infectious agents. In comparison with human pathogens, fairly...
Tipo: Text Palavras-chave: Écologie; Émergence; Évolution; Invertébrés marins; Vibriose; Virulence; Ecology; Emergence; Evolution; Marine invertebrate; Vibriosis; Virulence.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00344/45560/46722.pdf
Imagem não selecionada

Imprime registro no formato completo
Differences in larval emergence chronotypes for sympatric Rhagoletis brncici Frías and Rhagoletis conversa (Bréthes) (Diptera, Tephritidae) Rev. Bras. entomol.
Frías-Lasserre,Daniel; S,Andrea Luna; Villagra,Cristian A..
ABSTRACT In central Chile, Rhagoletis brncici and R. conversa, can be found in sympatry, associated with the fruit of their native host plants: Solanum tomatillo and S. nigrum (Solanaceae), respectively. Third-stage larvae must emerge from its host in search of pupation sites, and during this period larvae must find an appropriate pupation microhabitat while avoiding predation and adverse abiotic factors. In this study, we explored whether these sympatric species differ in terms of the timing of their larval exit from the host fruit in search of pupation sites. Field-collected fruits from host plants were checked daily for larval emergence, within 24 h, under laboratory conditions, in order to determine the time of the event. We found that these species...
Tipo: Info:eu-repo/semantics/other Palavras-chave: R. conversa; R. brncici; Sympatry; Chronotypes; Emergence; Larvae.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000300195
Imagem não selecionada

Imprime registro no formato completo
Dormancy overcome and seedling quality of pecan in nursery Ciência Rural
Poletto,Tales; Muniz,Marlove Fátima Brião; Poletto,Igor; Stefenon,Valdir Marcos; Maciel,Caciara Gonzatto; Rabusque,Jéssica Emilia.
ABSTRACT: This study evaluated the efficiency of methods to overcome seed dormancy in different storage periods in the production of pecan seedlings. Seeds were submitted to the following treatments: T1, T4 and T7 - control treatments (seeds with no treatment, stored at room temperature for 30, 60 and 90 days, respectively), T2, T5 and T8 - stratification (seeds were distributed in boxes with wet sand maintained at a temperature of 4°C for 30, 60 and 90 days, respectively), T3, T6 and T9 - scarification + stratification (seeds scarified with sandpaper n.80 and stratified by 30, 60 and 90 days, respectively), in completely random experimental design. Plant height, stem diameter, number of leaves, full emergence and emergence speed index (ESI) were evaluated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scarification; Stratification; Emergence; Carya illinoinensis.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101980
Imagem não selecionada

Imprime registro no formato completo
Dynamics of benthic copepods and other meiofauna in the benthic boundary layer of the deep NW Mediterranean Sea ArchiMer
Guidi-guilvard, L. D.; Thistle, D.; Khripounoff, Alexis; Gasparini, S..
A continuous high-resolution time-series survey of the hyperbenthic community and local environmental conditions was conducted in the benthic boundary layer (BBL) of the DYFAMED-BENTHOS station (43 degrees 24.61'N, 7 degrees 51.67'E at 2347 in depth in the NW Mediterranean) between January 1996 and April 1998 using bottom-moored sediment traps and a current meter. Sediment traps were set 4 m above the bottom. Hyperbenthos was collected as 'swimmers', i.e. those organisms that are alive when they enter the traps but are not part of the particle flux. Identification of these organisms showed that similar to 90%, were meiobenthic, Copepods dominated and comprised on average 75%, of total swimmers. They were followed by nauplii (12%), annelids (7.8%),...
Tipo: Text Palavras-chave: Biodiversity; Population growth; Emergence; Resuspension; Benthic storms; Hyperbenthos; Swimmers; Deep sea.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-7416.pdf
Imagem não selecionada

Imprime registro no formato completo
Efeito da compactação do solo sobre a semente no desenvolvimento da cultura do feijão - doi: 10.4025/actasciagron.v33i1.4236 Agronomy
Modolo, Alcir José; UTFPR; Trogello, Emerson; UTFPR; Nunes, Anderson Luis; UFRGS; Silveira, João Cleber Modernel da; IFET Goiano - Campus de Rio Verde - GO; Kolling, Evandro Marcos; UTFPR.
Um dos fatores da baixa produtividade está na dificuldade de se estabelecer a população ideal de plantas por ocasião da semeadura, pelos vários fatores que impedem a germinação normal de parte das sementes. Dentre os fatores primordiais para a germinação estão a umidade, a temperatura e a aeração do solo. É importante citar que estes fatores são diretamente influenciados pelo estado de compactação do solo ao redor da semente. O presente trabalho teve como objetivo estudar os efeitos da combinação entre profundidades de semeadura e cargas aplicadas pela roda compactadora da semeadora-adubadora sobre a emergência e o desenvolvimento da cultura do feijão, em sistema de plantio direto. Foi utilizado o esquema fatorial, no delineamento em blocos ao acaso...
Palavras-chave: 5.01.03.00-8 mecanização agrícola; Semeadura; Emergência. Mecanização Agrícola agricultural mechanization; Sowing; Emergence.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4236
Imagem não selecionada

Imprime registro no formato completo
Effect of different tillage and residue management practices on growth and yield of corn cultivation in Thailand CIGR Journal
Sornpoon, Wlaiwan; Jayasuriya, Hemantha P. W..
The tillage and residue management during soil bed preparation need to be in appropriate manner for sustainable farming practice.  The effects of tillage and residue management methods on corn cropping were studied on loamy soil in Bangrakum district, Phitsanulok Province, Thailand.  The effects of five commonly used tillage methods: subsoiler tillage (ST), three methods of conventional tillage (CT1, CT2 and CT3), no-tillage (NT), as main factors and two corn residue management methods; burned (R1) and unburned (R2), as sub-factors were studied in a randomized strip plot configuration.  Tillage treatment showed significant effect on physical and chemical soil properties, plant growth and development, grain yield, total aboveground biomass and most...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Tillage optimization Tillage; No-tillage; Emergence; Compaction; Subsoiler; Biomass.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2235
Imagem não selecionada

Imprime registro no formato completo
Effect of salt stress on physiology and agronomy characterstic of barley cultivars CIGR Journal
sorkhi, farshad.
In most northwest provinces of Iran such as West Azarbaijan province, soil salinity is a growing problem, particularly in irrigated agricultural areas, and has been found to reduce barley yield, dramatically. To investigate the effect of sodium chloride on two barley (Hordeum vulgare) cultivars, four levels of salinity: 0, 4, 8 and 12 dS/m, were employed as a factorial experiment arranged in a completely randomized design with three replications in a controlled environment of the greenhouse during 2017-2018. The results indicated that increasing salinity from 0 to 12 dS/m, decreased the emergence percentage significantly. Two cultivars of Zarjoo and Valfajr responded differently to salinity, so that Zarjoo showed a significantly higher emergence rate. This...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Emergence; Potassium; Proline; Salinity; Yield components.
Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5855
Imagem não selecionada

Imprime registro no formato completo
Emergence and biomass accumulation in seedlings of rice cultivars irrigated with saline water AGRIAMBI
Freire,Márcio H. da C.; Sousa,Geocleber G. de; Souza,Maria V. P. de; Ceita,Emanuel D. R. de; Fiusa,Jamili N.; Leite,Kelly N..
ABSTRACT The objective of this study was to evaluate the performance of three rice cultivars under saline water irrigation. The experiment was carried out in full sun at the Experimental Farm of the Unilab, in Redenção, Ceará, Brazil, in January 2016. The experimental design was completely randomized (CRD), in a 5 x 3 factorial scheme [irrigation water electrical conductivity (ECw: 0.5, 1.0, 2.0, 3.0 and 4.0 dS m-1) versus three rice cultivars (C1 - Ligeirinho, C2 - Casado and C3 - Meruinho)], totaling 15 treatments, with 4 replicates of 30 seeds per cultivar. After 21 days, the following variables were evaluated: emergence percentage (EP), emergence speed index (ESI), mean time of emergence (MTE), mean speed of emergence (MSE), shoot dry matter (SDM),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L.; Emergence; Salt stress.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700471
Registros recuperados: 49
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