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Características morfológicas e produtivas do capim-marandu adubado com fosfato natural reativo em solo de cerrado = Morphological and productive characteristics of marandu grass fertilized with natural reactive phosphate in cerrado soil.
Edna Maria Bonfim-Silva,Claudia Cardoso dos Santos,Lorraine do Nascimento Farias,Marcella Karoline Cardoso Vilarinho
Agro@mbiente On-line , 2012,
Abstract: O fósforo é importante para o desenvolvimento das plantas, sendo imprescindível para a realiza o dos processos metabólicos. Objetivou-se pelo presente estudo avaliar as características morfológicas e produtivas da Brachiaria brizantha cv. Marandu em fun o de doses de fósforo empregando o fosfato natural reativo Bayóvar (29% de P2O5). O experimento foi realizado em casa de vegeta o na Universidade Federal de Mato Grosso - Campus Universitário de Rondonópolis. O solo utilizado foi o Latossolo Vermelho, coletado na camada de 0-20 cm. Os tratamentos consistiram de seis doses de fósforo (0;50; 100; 150; 200 e 250 mg dm-3) e cinco repeti es utilizando o delineamento experimental inteiramente casualizado. Foram realizados dois cortes (aos 48 dias após a semeadura e 28 dias após o primeiro corte) e as variáveis analisadas foram: altura de planta, número de folhas, número de perfilhos, produ o de massa seca da parte aérea e raiz. Todos os resultados foram submetidos à análise de variancia e de regress o a 5% de probabilidade por meio do programa estatístico Sisvar. As doses de fósforo, adicionadas por meio do fosfato natural reativo, promoveram altera es significativas nas características morfológicas e produtivas do capim-marandu no primeiro corte proporcionando maiores produ es no segundo corte. Para o capim-marandu as doses de fósforo que proporcionaram as maiores alturas correspondem ao intervalo de 162,9 e 203,4 mg dm-3 , sendo as demais variáveis ajustadas ao modelo de regress o linear.Phosphorus is important for plant development, and is indispensable for metabolic processes. The objective of this study was to evaluate the morphological and productive characteristics of Brachiaria brizantha cv. Marandu depending on the doses of P in natural reactive phosphate Bayóvar. The experiment was carried out in a greenhouse at Federal University of Mato Grosso - Campus Rondonópolis. The soil used was a Oxisol which was collected from the layers 0,00-0,20 m. The treatments used were six doses of phosphorus (0; 50; 100; 150; 200 and 250 mg dm-3) and five replications using a randomized experimental design. Two cuts (at 48 days after the sowing and 28 days thereafter) were made and the evaluated variables were: plant height, number of leafs, number of tillers, dry mass of shoot and root. All results were subjected to variance analysis and regression at 5% probability using the statistical program Sisvar. The active phosphate fertilization promoted significant changes in the morphological and productive characteristics of marandu grass at the first cut providing
Características morfológicas e produtivas de feij o guandu an o cultivado em solo compactado Morphological and productive characteristics of the dwarf pigeonpea cultivated in compacted soil
Lorraine do N. Farias,Edna M. Bonfim-Silva,William Pietro-Souza,Marcella K. C. Vilarinho
Revista Brasileira de Engenharia Agrícola e Ambiental , 2013,
Abstract: Aliado ao uso indiscriminado de maquinários agrícolas, o manejo inadequado altera a densidade natural do solo causando redu o em sua qualidade física e, por conseguinte, implicando em efeitos negativos no desenvolvimento de culturas. Assim, objetivou-se avaliar a influência de compacta o do solo nas características morfológicas e produtivas de feij o guandu an o (Cajanus cajan L. Mill sp.) cv. IAPAR 43 Arat . O experimento foi realizado em casa de vegeta o na Universidade Federal de Mato Grosso - Campus Universitário de Rondonópolis. Utilizou-se um Latossolo Vermelho coletado na profundidade de 0-20 cm. Os tratamentos foram cinco níveis de compacta o (densidades do solo: 1,0; 1,2; 1,4; 1,6 e 1,8 Mg m-3) e seis repeti es em delineamento experimental inteiramente casualisado. As avalia es foram realizadas aos 33 e 63 dias após a emergência das plantas, determinando-se número de ramos, número de folhas, altura de plantas, diametro do caule, produ o de massa seca de folhas, colmos, parte aérea e raiz. As características morfológicas e produtivas do feij o guandu an o apresentam restri es quanto aos níveis de compacta o do solo, mostrando-se pouco eficiente na descompacta o em Latossolo Vermelho. Inadequate management along with the indiscriminate use of agricultural machinery alter the soil natural density, causing reduction in the physical quality and, as a result, implies negative effects onto the development of plantations. Thus, this paper aimed to evaluate the influence of soil compaction in the morphological and productive characteristics of the dwarf pigeonpea (Cajanus cajan L. Mill sp.) cv. IAPAR 43 Arat . The experiment was carried out in the greenhouse at Mato Grosso Federal University (UFMT) - Rondonópolis University Campus. Dark Oxisol collected in 0-20 cm depth was used. The treatments followed five levels of soil compaction (soil density 1.0; 1.2; 1.4; 1.6 and 1.8 Mg m-3) and six repetitions under completely randomized experimental design. The evaluations were carried out between 33 to 63 days after the emergence of the plants, when the amount of branches, amount of leaves, plant height, diameter of the stem, dry mass of leaves, culms, plant canopy and root were determined. The morphological and productive characteristics of the dwarf pigeonpea showed restrictions regarding the soil compaction levels where it was little effective in the Oxisol descompaction.
Cren?as e expectativas constituídas ao longo da carreira docente em educa??o física
Farias, Gelcemar Oliveira;Nascimento, Juarez Vieira do;Gra?a, Amandio;Batista, Paula Maria Fazendeiro;
Revista da Educa??o Física / UEM , 2011, DOI: 10.4025/reveducfis.v22i4.10651
Abstract: the objective of this study was to analyze the beliefs and the expectations constituted along teaching career, by the teachers of physical education from public education in porto alegre. 64 physical education teachers participated in the descriptive study with exploratory character; they were linked to the municipal net of porto alegre - rs. in order to collect data a questionnaire was used, composed by open and closed questions. information were inserted and classified by the software nvivo 7 adopting as resource the content analysis. in general, the results indicate that the gender and years of teaching are the factors that best discriminates the beliefs and the investigated teachers' expectations. besides, the data has revealed that the beliefs are centered in professional and personal factors, in the content of the discipline and in the student. while the expectations reported by the teachers are related to the professional satisfaction, the perspectives are resultant from the faiths beliefs and expectations originated during teaching career.
Competências profissionais em Educa??o Física: uma abordagem ao longo da carreira docente
Farias, Gelcemar Oliveira;Nascimento, Juarez Vieira do;Gra?a, Amandio;Batista, Paula Maria Fazendeiro;
Motriz: Revista de Educa??o Física , 2012, DOI: 10.1590/S1980-65742012000400004
Abstract: the objective of this study was to analyze the professional competences elucidated in the educational career of physical education teachers from school. 64 teachers of physical education of the municipal public net of porto alegre (rs) participated in the study. in the collection of data a questionnaire was used composed by open and closed questions, whose answers were classified based on the model of professional competence of cheetham; chivers (1998), with the application of the software nvivo 7.0. in the group of analyzed competences, it was identified that teachers with more experience are those that stand out the functional competences in their paths, characterized by the specific competence of the occupation and of the organization and administration. it stands out that the social and vocational dimension was preponderant in elapsing of the educational career, in the detriment of the interpersonal dimension of the social and personal competence. in spite of the importance of the ethics to the educational profession, the ethical competence and values was not expressive in the units of registration of this study.
Efeito agudo do alongamento estático em músculo agonista nos níveis de ativa??o e no desempenho da for?a de homens treinados
Silveira, Reinaldo do Nascimento da;Farias, Joni Marcio de;Alvarez, Barbara Regina;Bif, Ricardo;Vieira, Jeferson;
Revista Brasileira de Medicina do Esporte , 2011, DOI: 10.1590/S1517-86922011000100005
Abstract: the investigation of the effects of muscle stretching on the neural acute response has become a fairly attractive issue on current research when it is considered that strength performance is closely related to alterations on the levels of muscle activation. this study assessed the effects of 10 to 40 seconds of static stretching on the muscle activation as well as strength performance preceded by a repetition maximum test of trained subjects. 20 men, mean age of 21.75 (± 3.9), randomized in four groups according to the following stretching times: rt10s, rt20s, rt30s, rt40s - where rt corresponds to resistance training, were assessed. in the control phase (c), the subjects were submitted to the repetition maximum test in the bench press with dumbbells exercise. in the experimental phase (e), they were submitted to static stretching with intensity of 10% of 1rm followed by the repetition maximum test. muscle activation was assessed in the two phases with surface electromyography. one-way anova was applied for statistical assessment, comparing anthropometric and functional characteristics of the groups, t test was used for paired samples, comparing control and experimental ones (p < 0.05). results: statistically significant differences have not been found (p > 0.05) in strength performance or levels of agonist activation when the different studied times and intensities in the (e) phase and the experiment with no stretching in the (c) phase were compared. conclusion: stretching exercise in the studied times and intensities does not seem to acutely affect the levels of activation in order to boost strength performance in a repetition maximum test. therefore, different stretching intensities can be investigated with the aim to positively modulate these outcomes
Estimativa da área foliar do meloeiro
Nascimento Iarajane B. do,Farias Carlos Henrique A.,Silva Marcelo Cleon C.,Medeiros José Francismar de
Horticultura Brasileira , 2002,
Abstract: Estimou-se a área foliar da cultura do mel o (Cucumis melo, L.) cv. Gold Mine, submetido a laminas de irriga o variando de 55% a 130% da necessidade híbrida da cultura, usando água de baixa e alta salinidade. Foi coletada uma planta em cada parcela, aos 19; 26; 34; 40 e 50 dias após a semeadura, onde se determinou o número e a área foliar total e as suas dimens es, e a área foliar individual até 24 folhas por planta. Os resultados evidenciaram que existe uma correla o parcial entre a área foliar total da planta e o número de folhas de 0,945**, e a equa o de regress o obtida foi AF = 108NF - 516, com r2 = 0,95. A compara o conjunta das equa es obtidas para cada época mostra que pelo menos uma rela o entre largura (L) e área foliar (AF) diferenciaram das demais, embora a rela o que assume os dados como um todo, apresente um alto valor para o coeficiente de determina o, sendo a seguinte: AF=0,826L1,89 (r2=0,97).
Constru o da Carreira Docente em Educa o Física: Escolhas, Trajetórias e Perspectivas
Alexandra Folle,Gelcemar Oliveira Farias,Juliano Daniel Boscatto,Juarez Vieira do Nascimento
Movimento , 2009,
Abstract: El objetivo de esta investigación fue analizar la biografía de los profesores de Educación Física, intentando identificar sus decisiones, las perspectivas y las trayectorias profesionales vividas. Participaron del estudio cuatro profesores que se encontraban en diferentes fases de su carrera docente (inicio, consolidación, diversificación y estabilidad). En la recogida de las informaciones fue utilizada la entrevista semi-estructurada y la técnica de la narrativa fue empleada en el análisis de los datos. Las evidencias del estudio confirman que los docentes, aún con una formación conseguida en unos momentos diferentes y que actúan en contextos diferenciados, presentan puntos comunes en sus trayectorias profesionales, respetando las situaciones especiales de la historia personal de cada profesor.
Fístulas e outras anomalias congênitas dos tratos digestivo e urinário em um potro
Rocha, Thais Gomes;Teixeira, Luisa Gouvêa;Seppa, Gilberto dos Santos;Fran?a, Ticiana do Nascimento;Brito, Marilene de Farias;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000500046
Abstract: a three month-old mangalarga marchador colt, that eliminated urine in jets through the penian urethra, anus and through four fistulae in the perianal area. post-mortem examination revealed that the fistulae communicated the pelvic urethra and the bladder to the rectum and the rectum and the pelvic urethra to the perianal area. additionally, there were cecorectal fistula, persistence of the urachus and dilatation of the pelvic urethra, with a ventral blind sack. the bladder was filled with caseous exudate and feces and showed adherences with the peritonium, ileum and cecum, as well as with the muscles of the abdominal wall. this malformation type still had not been described in equine in brazil.
Surto de Circovirose (Síndrome Definhante Multissistêmica de Suínos Desmamados) no estado do Rio de Janeiro
Fran?a, Ticiana do Nascimento;Peixoto, Paulo Vargas;Brito, Marilene Farias;Morés, Nelson;Zanella, Janice;Driemeier, David;
Pesquisa Veterinária Brasileira , 2005, DOI: 10.1590/S0100-736X2005000100009
Abstract: the first outbreak of postweaning multisystemic wasting syndrome (pmws) in swine, which occurred in southeastern brazil, in the state of rio de janeiro, is described. the disease, which affects mainly weaned about 4 month-old pigs, caused the death of at least 14 animals. the property, where the outbreak occurred, had inadequate sanitary and management conditions. clinically the disease was characterized by wasting, poor development, cough, tachypnoea, dispnoea, diarrhoea, ataxia, tremors after stimulation, decubitus and convulsions. the course of the disease was acute or subacute. the most important post-mortem findings were enlarged lymphnodes, non-collapsed lungs, with consolidated areas mainly in the cranial lobes. histological lesions consisted mainly of lymphohistiocytic infiltration with multinucleate giant cells in lymph nodes, spleen, peyer's patches, kidney, lung and liver, depletion or lymphoid hyperplasia, as well as lymphohistiocytic interstitial pneumonia and areas of secondary bronchopneumonia. the diagnosis was established through observations of the symptoms and typical lesions, and was confirmed by immunohistochemical examination and pcr. the objective of this study was to characterize the epidemiological, clinical and pathological aspects of the outbreak of pmws, because of the severe direct or indirect economical losses caused by the disease to the world pig industry.
Intoxica o natural por Amaranthus spinosus (Amaranthaceae) em ovinos no Sudeste do Brasil
Peixoto Paulo Vargas,Brust Luis Armando Calv?o,Brito Marilene de Farias,Fran?a Ticiana do Nascimento
Pesquisa Veterinária Brasileira , 2003,
Abstract: No Estado do Rio de Janeiro descreve-se um surto de intoxica o aguda por Amaranthus spinosus em 12 ovelhas, caracterizado clinicamente por hálito urêmico, ausência de movimentos ruminais, dispnéia e aborto. Os animais foram colocados em um pasto adubado e severamente invadido pela planta. A necropsia realizada em seis ovinos revelou rins pálidos, em geral, com estria es esbranqui adas desde o córtex até a medula; em um animal verificaram-se diversos infartos sob forma de figuras geométricas no córtex. O fígado apresentava-se mais claro, por vezes com lobula o evidente. Em um animal verificaram-se áreas pálidas no miocárdio. Os pulm es congestos, algo mais pesados e consistentes, por vezes evidenciavam áreas de hepatiza o vermelha e cinzenta na por o cranial. Petéquias, equimoses e sufus es foram observadas em serosas, na mucosa do tubo digestório e em outros órg os. Ao exame histológico verificaram-se acentuada nefrose tubular tóxica, focos aleatórios de necrose coagulativa no fígado, áreas de necrose coagulativa no miocárdio e pneumonia intersticial aguda incipiente acompanhada por áreas de broncopneumonia. Na literatura n o foram encontradas referências à intoxica o natural por A. spinosus em ovinos. Tentativas de reprodu o da intoxica o com a planta em ovinos, n o foram bem sucedidas, provavelmente porque, nos experimentos, n o se utilizou A. spinosus proveniente de áreas adubadas. A necrose do miocárdio encontrada, ao exame microscópico do cora o de diversos animais foi atribuída a hipercalemia secundária à insuficiência renal, ao passo que a gênese dos infartos renais verificados em um ovino permanece obscura.
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