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Search Results: 1 - 10 of 216801 matches for " Souza Carlos Cleide de "
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Flash-drying for embryos desiccation Desidrata o ultra-rápida de embri es
Antonio Carlos de Souza Medeiros,Daniela Cleide Azevedo de Abreu
Pesquisa Florestal Brasileira , 2010, DOI: 10.4336/2012.pfb.54.119
Abstract: Seeds of several tree species from Brazilian wet forest are in dangerous situation and show recalcitrant characteristics. Therefore, it is not possible to store them by traditional methods adopted with orthodox seeds and it limits their genetic resources ex-situ conservation in seed banks. This situation encourages researches to find news technologies in order to store these species in genebanks. Therein, flash-drying method for embryos desiccation shows to be a promising technique in order to resolve seed conservation of Brazilian endogenous tree species in genebanks. This paper has an objective of to become known the flash-drying technique and to be accessible to seed physiologists Sementes de diversas espécies arbóreas das florestas úmidas brasileiras, grande parte delas amea adas de extin o, apresentam características recalcitrantes, significando que n o toleram desidrata o, n o sendo possível o seu armazenamento pelos métodos tradicionais realizados com sementes ortodoxas. Dessa forma, o comportamento "recalcitrante" das sementes limita a conserva o ex-situ dos recursos genéticos, especialmente dessas espécies florestais em bancos de sementes. Esse fato estimula pesquisadores a buscarem novas tecnologias visando a conserva o genética dessas espécies. Nesse sentido, a técnica denominada "flashdrying" ou desidrata o ultra-rápida de embri es mostra-se promissora para resolver ou amenizar o problema de conserva o de espécies brasileiras com sementes recalcitrantes. Este trabalho tem como objetivo reunir informa es e divulgar a técnica de desidrata o ultra-rápida ou "flash-drying", tornando-a amplamente acessível aos profissionais da área.
Efeito do substrato e da temperatura na germina??o de sementes de cataia (Drimys brasiliensis miers. winteraceae)
Abreu, Daniela Cleide A. de;Nogueira, Antonio Carlos;Medeiros, Antonio Carlos de Souza;
Revista Brasileira de Sementes , 2005, DOI: 10.1590/S0101-31222005000100019
Abstract: the aim of this research was to evaluate cataia (drimys brasiliensis miers. - winteraceae) seed germination under different, temperatures, substrate and stratification times. seeds were submitted to stratification method in green house, without controlled temperature, during 30, 60 and 90 days. filter paper, sand, vermiculite and agar 1% were tested as substrates. were compared constant temperatures of 17, 25 and 30oc under light, and alternate temperatures treatments of 20-30oc, adopting 20oc for 16 hours in absence of light and 30oc for 8 hours exposed to light. ivg (germination speed index) was obtained additionally as a vigor test, by counting normal seedlings everyday after sowing. cataia seeds showed 7% of moisture content (wet basis) at the beginning of the experiment. after 30, 60 and 90 days of sand stratification, these seeds presented 11,3%, 27,7% and 46,2% of moisture content, respectively. treatments with 30 and 60 days of sand stratification at 17oc obtained the highest germination percentage, of 67% and 52%, respectively. the highest percentage of germination was obtained after 30 days of sand stratification corresponding to 68% for substrates like agar, sand and filter paper, and 61% for vermiculite. for the treatment with 60 days of sand stratification, the highest germination percentages were 56%, 58% and 54% in agar, sand and filter paper, respectively, without statistic difference. the vigor seeds (ivg) were those that were sand stratified for 60 days and were transferred to agar, sand and filter paper to germinate, at 17oc, presenting germination rate of 0,55, 0,61 and 0,65. it was possible to conclude that 60 days of sand stratification is an efficient method to broken cataia seed dormancy. the higher rate an percentage of germination were obtained at constant temperature of 17oc with agar, sand and filter paper as substrates.
Caracteriza??o morfológica de frutos, sementes e germina??o de Allophylus edulis (St.-Hil.) Radlk. (Sapindaceae)
Abreu, Daniela Cleide Azevedo de;Kuniyoshi, Yoshiko Saito;Nogueira, Antonio Carlos;Medeiros, Antonio Carlos de Souza;
Revista Brasileira de Sementes , 2005, DOI: 10.1590/S0101-31222005000200009
Abstract: the aim of this research was to characterize morphologically internal and external structures of fruits and seeds and to describe and illustrate the external seedling morphology of allophylus edulis (st.- hil.) radk. from seed germination. in order to describe fruits, internal and external details related to texture, consistency, color, pilosity, brightness, shape, number of seeds per fruit and shedding were observed. some external aspects of seeds were analyzed, including size, color, texture, consistency, shape, hilum and micropyle position. regarding the internal characteristics the endosperm presence or absence and cotyledon, embryo axes and plumule type, shape and color. germination was considered from radicle protrusion to the protophilus emission and seedlings were considered stable when all the protophilus were expanded. the fruits of allophylus edulis are of the type coca, globose, indehiscent and monospermic. the seeds are ovoid, without endosperm and the embryo occupies the whole seed, more or less bent and slightly tablet. the germination of the seeds has beginning to the eighth day and it can be contained in the fifteenth day, after to planting.
Caracteriza??o morfolóica de frutos e sementes de cataia (Drimys brasiliensis Miers. - Winteraceae)
Abreu, Daniela Cleide Azevedo de;Kuniyoshi, Yoshiko Saito;Medeiros, Antonio Carlos de Souza;Nogueira, Antonio Carlos;
Revista Brasileira de Sementes , 2005, DOI: 10.1590/S0101-31222005000200010
Abstract: the aim of this research was to characterize morphologically internal and external structures of drimys brasiliensis miers fruits and seeds. in order to describe the fruits, internal and external details related to texture, consistency, pilosity, brightness, shape and number of seeds per fruit were observed. shedding was observed as well. some external aspects of the seeds were analyzed including size, color, texture, consistency, shape, hilum and micropyle position. the following internal characteristics were observed the presence or absence of endosperm and cotyledon, embryo axes and plumule type, shape and color. the heart, torpedo and mature stages were identified during embryo development. the fruits of d. brasiliensis are multiple, free, constituted by five little fruits, indehiscence and polispermic. the seeds are kedney form and they have great amount of endosperm, and they present dormancy for embryonic immaturity.
Avalia??o de métodos de determina??o de água disponível em solo cultivado com algod?o
Souza, Carlos Cleide de;Oliveira, Francisco Assis de;Silva, Ivandro de Fran?a da;Amorim Neto, Malaquias da Silva;
Pesquisa Agropecuária Brasileira , 2002, DOI: 10.1590/S0100-204X2002000300015
Abstract: the main objective of this work was to evaluate two methods of determination of soil available water (a direct method and other in laboratory) and the effect of three levels of available water (10, 25 and 40%) in cotton crop (gossypium hirsutum l. r. latifolium hutch). this work was developed in green house condition in the departamento de solos e engenharia rural/centro de ciências agrárias/universidade federal da paraíba, located in areia, pb, brazil. a completely randomized block was utilized in a 2 x 3 factorial arrangement, with three replications. the variance analysis showed that the values of the available water in soil using the direct method were significantly (p £ 0.05) bigger than the lab method. the management of irrigation in the cotton crop using 40% of available water determinated through the direct method showed the better results of evapotranspiration, leaf area, aboveground biomass. there was interaction of methods x levels of available water for all variables studied.
Avalia??o de métodos de determina??o de água disponível e manejo da irriga??o em terra roxa sob cultivo de algodoeiro herbáceo
Souza, Carlos Cleide de;Oliveira, Francisco Assis de;Silva, Ivandro de Fran?a da;Amorim Neto, Malaquias da Silva;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2000, DOI: 10.1590/S1415-43662000000300006
Abstract: this study was conducted in greenhouse conditions at the dser/cca/ufpb, located in areia, pb, brazil. the main objective was to evaluate two methods of determination of available soil water, a direct method (dm) and a laboratory method (lm), and the effect of three levels of available water, 10, 25 and 40% as indicative of irrigation management in cotton crop (gossypium hirsutum l. r. latifolium hutch). a completely randomized block was utilized in a 2 x 3 factorial scheme, with three replications. the variance analysis showed that the values of the available soil water using the direct method were significantly (p < 0.01) higher than the laboratory method. the management of irrigation in the cotton crop using 40% of available water by dm, showed better results of evapotranspiration, leaf area and above ground biomass. interaction of methods versus levels of available water for all variables studied was also found.
Avalia o de métodos de determina o de água disponível em solo cultivado com algod o
Souza Carlos Cleide de,Oliveira Francisco Assis de,Silva Ivandro de Fran?a da,Amorim Neto Malaquias da Silva
Pesquisa Agropecuária Brasileira , 2002,
Abstract: O objetivo deste trabalho foi avaliar dois métodos de determina o de água disponível no solo (um direto e outro de laboratório), e o efeito de três níveis de água disponível (10%, 25% e 40%) na cultura do algodoeiro herbáceo (Gossypium hirsutum L. r. latifolium Hutch). O trabalho foi realizado em casa de vegeta o do Departamento de Solos e Engenharia Rural/Centro de Ciências Agrárias/Universidade Federal da Paraíba, Município de Areia, PB. O delineamento experimental adotado foi o de blocos ao acaso, com distribui o em esquema fatorial 2 x 3, com três repeti es. Conforme a análise de variancia, a faixa de água disponível no solo, encontrada mediante a utiliza o do método direto, supera significativamente (p £0,05) a obtida pelo método de laboratório. O manejo das irriga es do algodoeiro com base em 40% da água disponível, determinado pelo método direto, proporcionou os maiores resultados de evapotranspira o, de área foliar e acumula o de fitomassa na parte aérea da cultura. Observou-se ainda intera o métodos x níveis de água disponível em todas as variáveis estudadas.
Educando para la salud: conocimiento y fuente de información sobre Síndrome de Inmunodeficiencia Adquirida o SIDA
Westrupp, Maria Helena Bittencourt;Pimentel, Cleide Peron Boell;Coelho, Elza Berger Salema;Caetano, Jo?o Carlos;Souza, Aldanei Norma de;
Revista Latino-Americana de Enfermagem , 1996, DOI: 10.1590/S0104-11691996000200005
Abstract: questionnaires were answered by 151 students, 10 to 19 years old, from an elementary, jr. and senior - high state school in florianópolis, state of santa catarina -brazil. the objectives were: to identify information sources; transmission mechanisms; prevention forms and the interest shown by students in acquiring new knowledge on hiv/aids. based on the responses, author found out that 90,06% of the students had heard about aids on tv, 29, 13% had been informed about the theme through a teacher. it was also observed that 45,03% would seek for orientation from their parents, and 9,93% from their teachers.
Milton, Minas & Geraes: uma cultura de resistência
Alberto Carlos de Souza
OPSIS : Revista do Departamento de História e Ciências Sociais , 2010,
Abstract: A study that discusses the places of memory in the works phonograph “Minas” and “Geraes”, Milton Nascimento, launched in 1975 and 1976, respectively, seen by critics of the season as the most representative of the “movement” Clube da Esquina. Such works have engendered an environment in which Brazil was experiencing a time of severe political repression, a situation in which Milton and his partners realize the opportunity in “Minas” sing in, in their roots in the countryside, and “Geraes”, sing out, by incorporating elements of its musicality of Latin America. “Minas” and “Geraes” has the meaning of being “places without gaps” - where there is no “desbunde”, on the contrary, an exposition of resistance within the body, passion, feelings, faith and memory - are unable be touched by a system whose premise was the total lack of sensitivity to the human and universal.
Milton Nascimento: una calle llamada mundo
Alberto Carlos De Souza
Barbarói , 2011,
Abstract: El punto de partida de este estudio consistirá en la exploración de la musicalidad de Milton Nascimento y de sus compa eros del “movimiento” “Clube da Esquina”, destacándose la relevancia del conjunto de esa obra para la cultura brasilera. El referido “movimiento” floreció en Minas Gerais en el auge de uno de los períodos más críticos de la historia contemporánea brasilera: la dictadura militar. En tanto, el “Clube da Esquina” – dado a la diversidad de los temas tratados en sus letras y su singularidad poética -, luego se difundió por todo el espacio cultural brasilero. Hablar del “Clube da Esquina” no es tarea fácil porque hay una dolorosa ausencia o pálida presencia de este movimiento en estudios que se ocupan de nuestra música popular. El “Clube da Esquina” fue un círculo de amigos que se reunieron en un peque o pub en la esquina de la Calle Divinópolis y Calle Paraisópolis, en un bucólico barrio de Belo Horizonte (Minas Gerais - Brasil), llamado Santa Teresa. Era parte de esa hermandad, interesada en música, cine y poesía, Milton Nascimento, Wagner Tiso, Fernando Brant, Toninho Horta, Beto Guedes, Moura Tavinho, los hermanos L y Marcio Borges, Robertinho Silva, Nivaldo Ornelas, Ronaldo Bastos, Murilo Antunes Nelson Angelo y Novelli, entre otros. En estas reuniones, regadas con mucha cerveza, Milton Nascimento y sus compa eros. Milton fue y sigue siendo la mayor referencia del movimiento “Clube da Esquina”. Abstract The starting point of this study will explore the music of Milton Nascimento and his fellow "movement" "Clube da Esquina", highlighting the relevance of all this work to the Brazilian culture. The aforementioned "movement" flourished in Minas Gerais at the height of one of the most critical periods in Brazilian contemporary history: the military dictatorship. Meanwhile, the "Clube da Esquina" - given the diversity of topics in his lyrics and his unique poetic - and then spread throughout the Brazilian cultural space. Speaking of "Clube da Esquina" is not an easy task because there is a painful absence or presence of this movement pale in studies dealing with popular music. The "Clube da Esquina" was a circle of friends who met in a small pub on the corner of Calle y Calle Divinópolis Paraisópolis, in a bucolic suburb of Belo Horizonte (Minas Gerais - Brazil), called Santa Teresa. It was part of that fellowship, interested in music, film and poetry, Milton Nascimento, Wagner Tiso, Fernando Brant, Toninho Horta, Beto Guedes, Moura Tavinho, brothers and Marcio Borges L , Robertinho Silva, Nivaldo Ornelas, Ronaldo Bastos, Murilo Antunes Nels
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