413 research outputs found

    características agronômicas de genótipos de girassol cultivados em campo verde - mt, na safrinha de 2016.

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    Título em inglês: Agronomic characteristics of sunflower genotypes cultivated in campo verde - mt, on off-season of 2016

    Avaliação de genótipos de girassol em Mato Grosso, na safrinha de 2014.

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    RESUMO: Objetivou-se avaliar o desempenho agronômico de genótipos de girassol, em ensaio da Rede de Ensaios de Avaliação de Genótipos de Girassol, na safrinha de 2014, visando à indicação para cultivo no Estado de Mato Grosso. O experimento foi conduzido na área experimental do Instituto Federal de Mato Grosso (IFMT), campus de São Vicente - MT, na safrinha de 2014, empregando-se delineamento em blocos ao acaso, com quatro repetições. Foram efetuadas avaliações de altura de planta, rendimento de aquênios, teor de óleo e rendimento de óleo. Os resultados foram submetidos à análise de variância e as médias foram comparadas pelo teste de Duncan ao nível de 5% de significância. Os genótipos GNZ NEON, SYN 045, AGUARÁ 06, M734, MG 360 e MG 305 foram superiores na avaliação de rendimento de aquênios. Em teor de óleo, os genótipos MG 360, MG 305, HLA 2012, SYN 3950HO, PARAÍSO 20 e AGUARÁ 04 se destacaram. O intenso ataque de pássaros prejudicou o desempenho dos genótipos de girassol. ABSTRACT: This work aimed to evaluate the agronomic performance of the sunflower genotypes under testing by the Network of Evaluative Experiments with Sunflower Genotypes, on off-season of 2014, proposing an indication for cultivation in the state of Mato Grosso, Brazil. Experiment was conducted in the Federal Institute of Mato Grosso, campus of São Vicente - MT, using randomized complete block design, with four replications. Measurements were made, evaluating plant height, achene yield, oil content and oil yield. The results were submitted to analysis of variance and compared using the Duncan test at 5% of significance level. Genotypes GNZ NEON, SYN 045, AGUARÁ 06, M734, MG 360 and MG 305 were higher in achenes yield evaluation. Regarding oil content, the genotypes MG 360, MG 305, HLA 2012, SYN 3950HO, PARAISO 20 and AGUARÁ 04 were best. The intense attack of birds affected performance of sunflower genotypes

    Projeto em rede de biossegurança de organismos geneticamente modificados da Embrapa BioSeg.

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    A BioSeg teve por objetivo dotar a Embrapa da capacitação e infra-estrutura necessárias à geração de dados científicos para que seus OGM, seguros do ponto de vista alimentar e ambiental, e em consonância com a legislação vigente, possam ser disponibilizados à população

    Projeto em rede de biossegurança de organismos geneticamente modificados da Embrapa - BioSeg.

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    A BioSeg teve por objetivo dotar a Embrapa da capacitação e infra-estrutura necessárias à geração de dados científicos para que seus OGM, seguros do ponto de vista alimentar e ambiental, e em consonância com a legislação vigente, possam ser disponibilizados à população

    Markedly Divergent Tree Assemblage Responses to Tropical Forest Loss and Fragmentation across a Strong Seasonality Gradient

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    We examine the effects of forest fragmentation on the structure and composition of tree assemblages within three seasonal and aseasonal forest types of southern Brazil, including evergreen, Araucaria, and deciduous forests. We sampled three southernmost Atlantic Forest landscapes, including the largest continuous forest protected areas within each forest type. Tree assemblages in each forest type were sampled within 10 plots of 0.1 ha in both continuous forests and 10 adjacent forest fragments. All trees within each plot were assigned to trait categories describing their regeneration strategy, vertical stratification, seed-dispersal mode, seed size, and wood density. We detected differences among both forest types and landscape contexts in terms of overall tree species richness, and the density and species richness of different functional groups in terms of regeneration strategy, seed dispersal mode and woody density. Overall, evergreen forest fragments exhibited the largest deviations from continuous forest plots in assemblage structure. Evergreen, Araucaria and deciduous forests diverge in the functional composition of tree floras, particularly in relation to regeneration strategy and stress tolerance. By supporting a more diversified light-demanding and stress-tolerant flora with reduced richness and abundance of shade-tolerant, old-growth species, both deciduous and Araucaria forest tree assemblages are more intrinsically resilient to contemporary human-disturbances, including fragmentation-induced edge effects, in terms of species erosion and functional shifts. We suggest that these intrinsic differences in the direction and magnitude of responses to changes in landscape structure between forest types should guide a wide range of conservation strategies in restoring fragmented tropical forest landscapes worldwide

    BRSMG Realce: cultivar de feijão comum de grãos rajados adaptada a colheita mecânica direta

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    Visando a fornecer novas opções de cultivares de grãos rajados aos produtores, as instituições que trabalham com melhoramento genético do feijoeiro em Minas Gerais, Universidades Federais de Lavras (UFLA) e de Viçosa (UFV), Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig) e Empresa Brasileira de Pesquisa Agropecuária (Embrapa), uniram esforços na avaliação de linhagens com esse tipo de grão, visando a obtenção e recomendação de novas opções de cultivares superiores à BRS Radiante. Como fruto desse trabalho conjunto está sendo recomendada a ?BRSMG Realce?, uma nova opção de cultivar de feijoeiro com grãos tipo rajado, para o estado de Minas Gerais.CONAF

    Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

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    The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal
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