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Search Results: 1 - 10 of 175481 matches for " Moraes Anibal de "
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Produtividade de forragem e morfogênese de "Trachypogon vestitus" em diferentes idades de rebrota nos cerrados de Roraima Forage production and morphogenesis of “Trachypogon vestitus” under different regrowth ages in the Roraima’s savannas
Newton de Lucena Costa,Vicente Gianluppi,Anibal de Moraes
Revista Brasileira de Saúde e Produ??o Animal , 2011,
Abstract: O efeito da idade da planta ao corte (21, 28, 35, 42, 49, 56, 63 e 70 dias) sobre a produ o de forragem e características morfogênicas e estruturais de Trachypogon vestitus, submetido a queima, durante o período chuvoso, foi avaliado em condi es de campo. O delineamento experimental foi inteiramente casualizado com três repeti es. As avalia es foram realizadas no período de maio a julho de 2009. O aumento da idade das plantas resultou em maiores rendimentos de forragem, taxa absoluta de crescimento (TAC), número de perfilhos/planta, número de folhas/perfilho, tamanho médio de folhas, área foliar e taxas de expans o e senescência foliar. As rela es entre idade das plantas e o rendimento de matéria seca, a TAC, a taxa de expans o foliar e o tamanho médio de folhas da gramínea foram ajustadas ao modelo quadrático de regress o, sendo os máximos valores registrados aos 65,8; 50,1; 43,4 e 62,0 dias de rebrota, respectivamente. As taxas de crescimento da cultura, taxa de crescimento relativo, taxas de aparecimento de perfilhos e de folhas foram inversamente proporcionais às idades das plantas. Visando conciliar produtividade de forragem com a maximiza o das características morfogênicas e estruturais da gramínea, o período de utiliza o mais adequado de suas pastagens situa-se entre 49 e 56 dias de rebrota. The effects of plant age regrowth (21; 28; 35; 42; 49; 56; 63 and 70 days) on dry matter yield, and morphogenetic and structural characteristics of Trachypogon vestitus, submitted to burning, during rainy season, were evaluated under natural field conditions. Evaluations were carried out during the period of May to July 2009. The dry matter yield, absolute growth rate, number of tillers/plant, number of leafs/plant, leaf area, leaf senescence and elongation rates and blade length increased consistently with growth stage. The relations between dry matter yield and absolute growth rate, elongation leaf rate and medium leaf length with cutting plants age were described by the quadratic regression model. The maximum dry matter yield, absolute growth rate, leaf elongation rate and leaf blade length were estimated at 65.8, 50.1; 43.4 and 62.0 days of regrowth. The crop growth and relative growth rates, tiller and leaf appearance rates and nitrogen contents were inversely proportional to cutting plant age. These data suggest that cutting at 49 to 56 days were optimal for obtain maximum dry matter yields and improved the grass morphogenetic and structural characteristics.
MORFOGêNESE DE Trachypogon vestitus SUBMETIDO à QUEIMA, DURANTE O PERíODO SECO, NOS CERRADOS DE RORAIMA
Newton de Lucena Costa,Vicente Gianluppi,Anibal de Moraes
Ciência Animal Brasileira , 2012,
Abstract: O efeito da idade de rebrota (21, 28, 35, 42, 49, 56, 63 e 70 dias) sobre a produ o de forragem e características morfogênicas e estruturais de Trachypogon vestitus, submetido à queima, durante o período seco, foram avaliados em condi es de campo. O delineamento experimental foi inteiramente casualizado com três repeti es. As avalia es foram realizadas no período de dezembro de 2009 a fevereiro de 2010. O aumento da idade de rebrota resultou em maiores rendimentos de matéria seca (MS), taxa absoluta de crescimento (TAC), número de perfilhos/planta (NPP), número de folhas/perfilho (NFP), tamanho médio de folhas (TMF), área foliar e taxas de expans o e senescência foliar (P<0,05). As rela es entre idades de rebrota, rendimento de MS, TAC, NPP, NFP e TMF da gramínea foram ajustadas ao modelo quadrático de regress o, sendo os valores máximos registrados aos 64,8; 42,3; 59,6; 61,8 e 59,4 dias de rebrota, respectivamente. As taxas de crescimento da cultura, taxa de crescimento relativo, taxas de aparecimento de perfilhos e de folhas foram inversamente proporcionais às idades das plantas.
Some oribatid mites (Acari, Oribatida) from the State of S?o Paulo, Brazil
Oliveira, Anibal Ramadan;Prieto, Dania;Moraes, Gilberto José de;
Revista Brasileira de Zoologia , 2001, DOI: 10.1590/S0101-81752001000500017
Abstract: a survey was conducted in three sites from northern and mid-eastern regions of the state of s?o paulo, brazil, to determine oribatid mite composition in patches of seasonal semideciduous forest and soybean crop plantation. a list of 52 taxa, 24 at the species level and 28 only at the genus level, is given, 27 of which are new records for the region.
Yield potencial of Trachypogon plumosus pastures in the Roraima’s savannas. = Rendimento potencial de pastagens de Trachypogon plumosus nos cerrados de Roraima.
Newton de Lucena Costa,Anibal de Moraes,Ricardo Augusto de Oliveira,Vicente Gianluppi
Agro@mbiente On-line , 2011,
Abstract: There are several methods to calculate the potential performance, however it′s necessary to correlate those more adjusted to real field conditions, in function of the diversity of biotics and abiotics factors that affect the growth and development of the plants and, consequently, in the forage yield potential performance. Among the methods evaluated for the estimate Trachypogon plumosus forage potential performance, during rainy season, the method proposed by Doorenbos and Kassam (1994) provided better adjusted to the field conditions, whereas the Sinclair (1993) method provided estimates of the grass growth potential, which can be obtained under extremely favorable environmental conditions and the utilization of better pasture management practices. The method of Loomis and Williams (1963) estimated a very high productivity, showing itself inadequate for simulate grass growth potential under real conditions. The acurate of the models in predict the potential performance was directly proportional to incorporates sensibility parameters that consider the prominent of abiotics and physiological phenomena involved in the biomass accumulation.
Podrid?o?vermelha?da?raiz da soja em cultivos com diferentes sistemas de manejo e coberturas do solo
Reis, Emerson Fábio dos;Pelissari, Adelino;Moraes, Anibal de;Oliveira, Edilson Batista de;Ruaro, Lucimeris;
Pesquisa Agropecuária Brasileira , 2012, DOI: 10.1590/S0100-204X2012000400008
Abstract: the objective of this work was to assess the effect of soil management systems and winter cover crops on the number of propagules of fusarium spp. in soil, the incidence of sudden death syndrome (sds), and the productivity of the soybean cultivars cd 206 and ft fênix. two experiments were carried out in the 2006/2007 and 2007/2008 crop years. the experimental design was a randomized complete block in a split?split plot arrangement, with three replicates. two soil tillage systems were evaluated: no?tillage and plowed soil at a depth of 25 cm. the soil covers used were: black oat, with two planting densities; black oat + vetch; ryegrass; and fallow. the incidence of the disease in the 2006/2007 crop year in the cultivar ft fênix was lower than in cd 206. in the 2007/2008 crop, there was no significant difference. there was an increase in productivity, of 125 kg ha?1, in the plowed treatment, when compared to no?tillage. the cover with black oat + vetch showed a higher number of propagules of fusarium spp. in soil in the 2006/2007 crop year. however, in the second year, this difference was not observed. the soil management systems and winter cover crops used do not influence the incidence of sds in soybean cultivars or the number of fusarium spp. propagules in soil. the plowed system provides an increase in soybean yield in the second year of management.
Forage accumulation and radiation use efficiency of Axonopus aureus pastures, during dry season, in the Roraima’s savannas, Brazil. = Acúmulo de forragem e eficiência de utiliza o da radia o em pastagens de Axonopus aureus, durante o período seco, nos cerrados de Roraima.
Newton de Lucena Costa,Anibal de Moraes,Vicente Gianluppi,Amaury Burlamaqui Bendahan
Agro@mbiente On-line , 2011,
Abstract: The effects of cutting plant age (21, 28, 35, 42, 49, 56, 63 and 70 days) on dry matter (DM) yield, and radiation use efficiency (RUE) of Axonopus aureus, during dry season, were evaluated under natural field conditions. DM yields, absolute growth rate (AGR), crop growth and relative growth rates and leaf area increased consistently with growth stage. The relations between DM yield and AGR with cutting plants age were described by the quadratic regression model. The maximum DM yield, AGR and RUE were estimated at 62.6; 47.8 and 51.7 days of regrowth, respectively. The response of forage yield to incident photosynthetically active radiation was quadratic and maximum value estimated at 487.7 MJ/m2, which corresponded to 796.7 kg of DM/ha. These data suggest that cutting at 49 to 56 days were optimal for obtain maximum dry matter yields and improved the incident RUE.ResumoO efeito da idade de rebrota (21, 28, 35, 42, 49, 56, 63 e 70 dias) sobre a produtividade de matéria seca (MS) e a eficiência de utiliza o da radia o (EUR) de Axonopus aureus, durante o período seco, foi avaliado em condi es de campo. O aumento da idade de rebrota resultou em maiores rendimentos de forragem, taxa absoluta de crescimento, taxa de crescimento da cultura, taxa de crescimento relativo e área foliar. As rela es entre idade de rebrota, rendimento de MS, taxa absoluta de crescimento e EUR foram ajustadas ao modelo quadrático de regress o, sendo os máximos valores registrados aos 62,6; 47,8 e 51,7 dias de rebrota, respectivamente. A resposta da produtividade de forragem à RFA incidente foi quadrática e o máximovalor estimado em 487,7 MJ/m2, o qual correspondeu a 796,7 kg de MS/ha. Visando conciliar produtividade de forragem da gramínea com a maximiza o da EUR, o período de utiliza o mais adequado de suas pastagens situa-se entre 49 e 56 dias de rebrota.
Forage yields and morphogenesis of Axonopus aureus, during dry season, in the Roraima′s savannas = Rendimento de forragem e morfogênese de Axonopus aureus, durante o período seco, nos cerrados de Roraima
Newton de Lucena Costa,Vicente Gianluppi,Anibal de Moraes,Amaury Burlamaqui Bendahan
Agro@mbiente On-line , 2012,
Abstract: The effects of regrowth age (21, 28, 35, 42, 49, 56, 63 and 70 days) on dry matter (DM) yield, and morphogenetic and structural characteristics of Axonopus aureus, submitted to burning, during dry season, were evaluated under natural field conditions. Evaluations were carried out during the period of December 2010 to February 2011. DM yields, absolute growth rate, number of tillers/plant, number of leafs/plant, leaf area, leaf senescence and elongation rates and blade length increased consistently with growth stage. The relations between DM yield and forage production rate with cutting plants age was described by the quadratic regression model. The maximum DM yield and forage production rate performance were estimated at 69.14 and 45.49 days of regrowth. The crop growth and relative growth rates, tiller and leaf appearance rates were inversely proportional to cutting plant age. To maximize the forage use efficiency and to prevent larger losses relative to senescence and leaves death, it is recommended a regrowth interval between 42 to 56 days. = O efeito da idade de rebrota (21, 28, 35, 42, 49, 56, 63 e 70 dias) sobre o rendimento de forragem e características morfogênicas e estruturais de Axonopus aureus, submetido a queima, durante o período seco, foi avaliado em condi es de campo. As avalia es foram realizadas no período de dezembro de 2010 a fevereiro de 2011. O aumento da idade de rebrota resultou em maiores rendimentos de forragem, taxa absoluta de crescimento, número de perfilhos/planta, número de folhas/perfilho, tamanho médio de folhas, área foliar e taxas de expans o e senescência foliar. As rela es entre idade de rebrota e o rendimento de matéria seca e a taxa absoluta de crescimento da gramínea foram ajustadas ao modelo quadrático de regress o, sendo os máximos valores registrados aos 69,14 e 45,49 dias de rebrota, respectivamente. As taxas de crescimento da cultura, taxa de crescimento relativo, taxas de aparecimento de perfilhos e de folhas foram inversamente proporcionais às idades de rebrota. Visando maximizar a eficiência do uso da forragem produzida e reduzir as perdas por senescência foliar de Axonopus aureus, o período de utiliza o mais adequado de suas pastagens, durante o período seco, situa-se entre 42 e 56 dias de rebrota.
Fibroma Osificante de Mandíbula: Reporte de un caso Clínico
Jaimes,Miguel; Barbosa Luna,Anibal Henrique; Asprino,Luciana; de Moraes,Márcio;
Acta Odontológica Venezolana , 2009,
Abstract: ossifying fibroma is a benign lesion, with slow growth but deforming tumefaction involving the jaws, mainly the posterior region of the mandible. it is more frequent in females among the third and fourth decades of life. radiologically, it usually appears like a radiolucent unilocular well defined area, limited by a radiopaque (sclerotical) edge; occasionally it appears as a radiopaque image. its treatment is surgical and consists of the total resection of the lesion. this article reports a case of ossifying fibroma, with discussion of its clinical features through a literature review.
Efeito residual do nitrogênio na cultura do milho no sistema de produ??o integra??o lavoura-pecuária
Sandini, Itacir Eloi;Moraes, Anibal de;Pelissari, Adelino;Neumann, Mikael;Falbo, Margarete Kimie;Novakowiski, Jaqueline Huzar;
Ciência Rural , 2011, DOI: 10.1590/S0103-84782011005000099
Abstract: the nitrogen is an element required in large quantities by plants. its application in the pasture, in crop-livestock integration, would provoke high animal productivity in winter and high vegetal productivity in summer. this study aimed to evaluate the residual effect of nitrogen application in the pasture, with and without grazing sheep, under maize culture. the experiment was conducted in guarapuava (pr) in the 2007/08 season in a randomized block design with split plots. the main parcel consisted of treatments with n in winter (n-ti = 0, 75, 150 e 225kg ha-1 de n) in pasture of white oat (avena sativa l.) and ryegrass (lolium multiflorum lam.), in subparcel with (cp) and without grazing (sp) sheep and, in subsubparcels n in summer (n-tv=0; 75; 150; 225 e 300kg ha-1 de n). the sowing of hybrid 30f53 occurred on 10/24/07. the variables evaluated were: pasture dry mass, productivity, numbers of rows, grains per rows, grains per spike and grain thousand mass. the dry mass plant cp and sp had quadratic response to the level of n-ti and n-tv. the productivity of grains, as well as the number of rows and grains per spike, was not affected by grazing. there was quadratic response in productivity of grains, due to the increase of nitrogen levels n-ti and n-tv.
Integra??o lavoura-pecuária: intensifica??o de uso de áreas agrícolas
Balbinot Junior, Alvadi Antonio;Moraes, Anibal de;Veiga, Milton da;Pelissari, Adelino;Dieckow, Jeferson;
Ciência Rural , 2009, DOI: 10.1590/S0103-84782009005000107
Abstract: crop-livestock is a production system that succeeds, at the same area, pastures to animal production and vegetal crops, especially cereals. the objective of this work was to discuss the major presuppositions and characteristics of the crop-livestock system in southern brazil, and its effects on the soil quality and animal and vegetal yield. this production system can result in some advantages to farmers such as increase of rent per area, higher diversification, decrease of economic hazards and production costs. moreover, the crop-livestock system can show biological advantages such as biodiversity increase and improved soil quality. among the disadvantages, it can point out the possibility of superficial soil compaction in inappropriate pasture management. to success of crop-livestock system some presuppositions must be considered, such as crop rotation, use of no-tillage system, correction of soil acidity and fertility, use of improving vegetal and animal genotypes and, mainly, adequate pasture management.
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