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Search Results: 1 - 10 of 186291 matches for " Paulo de Albuquerque;Diniz "
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Sweet pepper seed responses to inoculation with microorganisms and coating with micronutrients, aminoacids and plant growth regulators
Diniz, Kênia Almeida;Silva, Paulo de Albuquerque;Oliveira, Jo?o Almir;Evangelista, José Renato Emiliorelli;
Scientia Agricola , 2009, DOI: 10.1590/S0103-90162009000300002
Abstract: small sized seeds, such as the horticultural species, have limited quantities of reserves that can be balanced by coating then with essential nutrients for their initial development. in addition, inoculation of the seeds with microorganisms may protect the plants against phytopathogens, thus enhancing their growth. the present work had the objective of evaluate the physiological quality and seedling development of sweet pepper seeds and seedlings coated with several kind of films. seeds were first coated with polymers and then with antagonistic microorganisms (trichoderma viride, trichoderma polysporhum, trichoderma stromaticum, beauveria bassiana, metarhizium anisopliae), mycorrhizas, aminoacids, micronutrients and plant growth regulators. evaluation was performed for percentage of germination and for seedling emergence, speed of emergence index, number of plants, dry mass of the aerial and root parts and height of the seedlings. inoculation with trichoderma viride increased the percentage and rate of the seedlings emergence inoculation with trichoderma viride, metarhizium anisopliae and mycorrhizas promote better seedling development; seed microbiolization with microorganisms trichoderma viride, t. polysporhum, t. stromaticum, beauveria bassiana, metarhizium anisopliae. mycorrhizas mixture negatively affected seeds and seedling quality. seed covering with plant growht regulator, at a 5 ml kg-1 dose increased the roots dry matter.
Análise fisiológica e ultra-estrutural durante o desenvolvimento e a secagem de sementes de soja
Silva, Paulo de Albuquerque;Diniz, Kênia Almeida;Oliveira, Jo?o Almir;Pinho, édila Vilela de Rezende Von;
Revista Brasileira de Sementes , 2007, DOI: 10.1590/S0101-31222007000200003
Abstract: during development and drying, a number of protection mechanisms act on the maintenance of seed physiological quality. some of these mechanisms maintain the integrity of the cells, which is fundamental to the perfect functioning of cell metabolism. the study of the ultra-structure enables visualization of damage caused by drying in the absence of protection mechanisms. in this research, damage occurred during the soybean seed development and drying was studied by means of scanning electron microscopy (sem). in addition, seeds were also evaluated regarding the physiological quality. thus, seeds in different developmental stages were collected and submitted to different drying temperatures and treatments. evaluations were made concerning the seed physiological quality by means of the germination test, cold test, emergence test under controlled conditions and electrical conductivity test. the damages were visualized by means of scanning electron microscopy utilizing the leo evo40 microscope. the results showed that the soybean seeds become desiccation tolerant when they possess around 30% water content. drying of seeds with moisture content above 30% caused reduction in cellular volume, disorganization of the cell walls and decrease in seed physiological quality. higher germination values were observed in seeds with 30% moisture content in the field, whereas higher values of vigor were observed in seeds with 40% of moisture content in the field.
Armazenamento e qualidade de sementes de tomate enriquecidas com micronutrientes e reguladores de crescimento
Albuquerque, Kênia Almeida Diniz;Oliveira, Jo?o Almir;Silva, Paulo de Albuquerque;Veiga, André Delly;Carvalho, Bruno Oliveira;Alvim, Patrícia de Oliveira;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000100002
Abstract: the objective of this study was to evaluate the effect of the application of micronutrients and growth regulators on the germination, vigor, activity of some enzymes, and on the total protein contents in tomato seeds during the storage. the seeds were treated with the chemicals starter?, cellerate?, and stimulate? at the dosages corresponding to 0%, 50%, 100%, 150%, and 200% of the dose recommended by the manufacturer, utilizing the film-coating technique. the evaluations were performed at 0, 6, and 12 months of storage by the following parameters: percentage of germination, percentage and emergency velocity rate, activity of enzymes endo-a-mannanase and esterase, total protein content, and health. the completely randomized design in a 3 x 5 x 3 factorial structure was utilized, namely, three chemicals, five doses, and three storage periods with four replicates of 50 seeds per treatment. coating with the chemicals based on micronutrients and growth regulators and storage interfere on the activity of enzyme endo-a-mannanase in the tomatoes and seeds; the activity of enzyme esterase increases with the storage of tomato seeds, pointing to an increase in the deterioration process; there is an increase in the total protein content in tomato seeds throughout the storage period; chemicals based on growth regulators promote an increase in emergency velocity rate of the tomato seedlings when applied at pre-sowing at the recommended dose.
Tolerancia de sementes de soja à desseca??o
Veiga, Adriano Delly;Rosa, Sttela Dellyzete Veiga Franco da;Silva, Paulo de Albuquerque;Oliveira, Jo?o Almir de;Alvim, Patrícia de Oliveira;Diniz, Kênia Almeida;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000300025
Abstract: the anticipated harvest of seeds after physiological maturity allows the obtaining of the better quality physiological, crop rotation and optimization of the processing structures. seeds do not tolerate dissection over all the stages and acquire tolerance in particular stages during maturation, this acquisition of dissection tolerance may coincide with physiological maturity and in soybean seeds, it take place at r7 stage with moisture close from 45% to 50%. so, the present research was intended to evaluate dissection tolerance of soybean seeds. the seeds were harvested at three phenologic stages, r6, r6/r7 and r7 and were submitted to artificial drying at 35oc to 20% of water content and at 42oc to 13%. a fourth harvest was accomplished with field dried seeds, these being utilized as a control. the quality of seeds was evaluated by tests of germination, electric conductivity and of cold, of dry weight of seedlings and lea protein electrophoresis.the experimental design was completely randomized in factorial scheme with four replicates. the control was compared singly with each treatment. from the results, it follows that both germinability and dissection tolerance of soybean seeds increase with the natural water loss in the field; seeds harvest at r7stage show increased physiologic quality, distinct pattern of lea proteins and greater dissection tolerance than at r6 and r6/r7stages; seeds drying harvested close to maturity induces the synthesis of lea proteins; and seeds harvested at r7 stage present physiological quality and lea protein pattern similar to the ones of filed dried seeds up to 14% of water content.
Qualidade de sementes de alface enriquecidas com micronutrientes e reguladores de crescimento durante o armazenamento
Diniz, Kênia Almeida;Oliveira, Jo?o Almir;Silva, Paulo de Albuquerque;Guimar?es, Renato Mendes;Carvalho, Maria Laene Moreira de;
Revista Brasileira de Sementes , 2009, DOI: 10.1590/S0101-31222009000100026
Abstract: it is known that micronutrients and growth regulators are important metabolism activators, which can bring benefits to germination and seed vigor when incorporated into the treatment and so increase the developmental potential of the plants in the field. the objective of this study was to evaluate the effect of applying micronutrients and growth regulators in germination, vigor, on the activity of some enzymes and on the total protein contents in lettuce seeds during storage. the seeds were treated with the chemicals starter?, cellerate? and stimulate? at the dosages corresponding to 0%, 50%, 100%, 150% and 200% of the dose recommended by the manufacturer, using the film-coating technique. the evaluations were performed at 0, 6 and 12 months of storage on the following parameters: germination percentage, emergence percentage and speed index, activity of enzymes endo-β-mannanase and esterase, total protein content and health. it was concluded that growth regulators promoted an increase in the emergence speed index of the lettuce seedlings when applied at the dose recommended and at pre-sowing; the coating of the lettuce seeds with the double the recommended dose of the chemicals based on micronutrients and growth regulators, reduced their quality; the activity of the esterase enzyme increases with the storage of lettuce seeds, pointing to an increase in the decaying process; the coating with both micronutrients and growth regulators and storage interfere in the activity of the endo-β-mannanase enzyme in lettuce and seeds.
Metamorfoses do contrato representativo: jornalismo, democracia e os manuais da reda o da Folha de S.Paulo
Afonso de Albuquerque,Ariane Diniz Holzbach
Comunica??o, Mídia e Consumo , 2008,
Abstract: Resumo O texto analisa as três primeiras edi es do Manual da Reda o editado pelo jornal Folha de S.Paulo: 1984, 1987 e 1992. Mais do que fundamental na estrutura o do novo jornalismo brasileiro pós-ditadura, as edi es constituem um manifesto no qual o jornal reivindica ocupar um papel de destaque na nova democracia em forma o. A análise se prende, em especial, ao modo como os manuais buscam legitimar esse papel baseado em um tipo particular de contrato representativo; um vínculo comercial, antes que eleitoral. Palavras-chave: Jornalismo; democracia; contrato representativo; Manual da Reda o da Folha de S.Paulo. Resumen El texto se propone analizar las tres primeras ediciones del Manual da Reda o editado por el diario Folha de S.Paulo: 1984, 1987 y 1992. Además de desempe ar un papel fundamental en la estructuración del nuevo periodismo brasile o posterior a la dictadura, las ediciones constituyen un manifiesto en el cual el diario pretende desempe ar un papel destacado en la nueva democracia que estaba en formación. El objetivo de este análisis es determinar la manera en que los manuales buscan legitimar ese papel basado en un tipo especial de contrato representativo en el cual el vinculo comercial es más importante que el vinculo electoral. Palabras-clave: Periodismo; democracia; contrato representativo; Manual da Reda o del diario Folha de S.Paulo. Abstract The main purpose of this paper is to analyze the first three editions of the Writing Manuals (Manual da Reda o – 1984, 1987 and 1992), edited by th daily newspaper Folha de S.Paulo. These manuals were fundamental for the structuring of the new Brazilian journalism during the post-dictatorship period. Furthermore, they are a manifest where the newspaper claims for an important place in the new Brazilian democracy in formation. The aim of this analysis is to ascertain how these manuals try to legitimate this position. They have a sort of special representative contract where commercial bonding is more important than the electoral one. Keywords: Journalism; democracy; representative contract; Folha de S.Paulo Writing Manual.
Uma superfície política para o ‘Leviat Benevolente’
Paulo Roberto de Albuquerque Bomfim
Terra Brasilis : Revista da Rede Brasileira de História da Geografia e Geografia Histórica , 2003,
Abstract: Em A Montanha Mágica, Thomas Mann (1980) contrap e, nas vozes dos personagens Leo Naphta e Lodovico Settembrini, respectivamente, um “comunismo” religioso-militar, embri o de um futuro misticismo de tinta nacionalista, devotado ao Estado forte, a um racionalismo liberal – supostamente humanista – de cunho inegavelmente eurocêntrico. Se quando Mann come a a escrever o romance em 1912 ainda considera-se um homem “apolítico” e em seguida defende a causa alem durante a Guerra, quando finaliza su...
Paulo Roberto de Albuquerque Bomfim
Boletim Goiano de Geografia , 2010,
Abstract: O presente estudo tem como objetivo examinar o significado do antigo projeto geopolítico, baseado na retóricada ocupa o territorial, durante a época da ditadura militar no Brasil (1964-1985). Tal projeto adquire um novo carátera partir do uso de teorias e conceitos em voga na época, como é o caso das teses de Fran ois Perroux sobreos polos de desenvolvimento. Ao mesmo tempo, buscando uma maior expans o territorial do Estado brasileiro,a Amaz nia converte-se no foco das políticas de ocupa o do território. Neste trabalho, pretende-se real ar oquanto a proje o econ mica do Estado em dire o ao norte do país n o somente foi um dos argumentos maisdifundidos do período desenvolvimentista como também contribuiu – dentro da lógica geopolítica – para aocupa o predatória da regi o. O debate sobre a problemática aqui discutida resulta em uma contribui o parapensar o passado e o presente daqueles territórios concebidos como “vazios” na América Latina, a exemplos dosert o no caso do Brasil e do deserto no caso Argentino.
The importance of surfactant on the development of neonatal pulmonary diseases
Lyra, Priscila Pinheiro Ribeiro;Diniz, Edna Maria de Albuquerque;
Clinics , 2007, DOI: 10.1590/S1807-59322007000200014
Abstract: pulmonary surfactant is a substance composed of a lipoprotein complex that is essential to pulmonary function. pulmonary surfactant proteins play an important role in the structure, function, and metabolism of surfactant; 4 specific surfactant proteins have been identified: surfactant proteins-a, surfactant proteins-b, surfactant proteins-c, and surfactant proteins-d. clinical, epidemiological, and biochemical evidence suggests that the etiology of respiratory distress syndrome is multifactorial with a significant genetic component. there are reports about polymorphisms and mutations on the surfactant protein genes, especially surfactant proteins-b, that may be associated with respiratory distress syndrome, acute respiratory distress syndrome, and congenital alveolar proteinosis. individual differences regarding respiratory distress syndrome and acute respiratory distress syndrome as well as patient response to therapy might reflect phenotypic diversity due to genetic variation, in part. the study of the differences between the allelic variants of the surfactant protein genes can contribute to the understanding of individual susceptibility to the development of several pulmonary diseases. the identification of the polymorphisms and mutations that are indeed important for the pathogenesis of the diseases related to surfactant protein dysfunction, leading to the possibility of genotyping individuals at increased risk, constitutes a new research field. in the future, findings in these endeavors may enable more effective genetic counseling as well as the development of prophylactic and therapeutic strategies that would provide a real impact on the management of newborns with respiratory distress syndrome and other pulmonary diseases.
Qual é a recomenda o atual para o tratamento da toxoplasmose congênita?
Diniz Edna M. de Albuquerque,Vaz Flávio Adolfo Costa
Revista da Associa??o Médica Brasileira , 2003,
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