Comportamento inicial de cultivares de Coffea arabica L. com resistência à ferrugem cultivadas na Região de Muzambinho-MG.

O presente trabalho trás os resultados preliminares de um ensaio sobre competição entre cultivares de Coffea arabica L. resistentes à ferrugem, e tem como objetivo avaliar o crescimento, resistência à ferrugem e o potencial de produção de diferentes genótipos cultivados na região de Muzambinho, no sul do estado de Minas Gerais. Para tanto o experimento foi instalado e está sendo conduzido na área experimental da Escola Agrotécnica Federal de Muzambinho (EAFMuz) em Muzambinho ? MG, em parceria com a Fundação MAPA/PROCAFÉ, sediada no município de Varginha ? MG. O experimento consta de um delineamento em blocos ao acaso (DBC), com 4 blocos (4 repetições), com 5 plantas úteis por parcelas. Como tratamento, o experimento conta com 34 diferentes genótipos de Coffea arabica (L.). Os tratos culturais utilizados foram comuns a todos os tratamentos, sendo que não houve controle químico no combate à doença ferrugem. Os resultados preliminares mostram que nenhum genótipo testado apresentou sintomas típicos de ferrugem na folha. Os genótipos Catucaí vermelho 36/6 porte médio precoce cv 365 (3.12), Catucaiaçu Jaguarai e Catucaí amarelo 24/137 Jaguaraí mostraram serem superiores em relação aos demais genótipos, quando se avaliou o diâmetro da copa, diâmetro do caule (tomados a 10 cm do colo) e altura da planta

Uso de ressonância magnética nuclear na caracterização de ácidos húmicos de solos sob diferentes manejos.

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BDGF: a database and webbased information retrieval system for genotype and phenotype.

In order to get efficient storage and fast queries in this high volume of data, in this work we present the BDGF system (Genotypes and Phenotypes Database). It is based on a data model first proposed by (HIGA, 2015).X-Meeting 2016

Astrometry of the main satellites of Uranus: 18 years of observations

We determine accurate positions of the main satellites of Uranus: Miranda, Ariel, Umbriel, Titania, and Oberon. Positions of Uranus, as derived from those of these satellites, are also determined. The observational period spans from 1992 to 2011. All runs were made at the Pico dos Dias Observatory, Brazil. We used the software called Platform for Reduction of Astronomical Images Automatically (PRAIA) to minimise (digital coronography) the influence of the scattered light of Uranus on the astrometric measurements and to determine accurate positions of the main satellites. The positions of Uranus were then indirectly determined by computing the mean differences between the observed and ephemeris positions of these satellites. A series of numerical filters was applied to filter out spurious data. These filters are mostly based on the comparison between the positions of Oberon with those of the other satellites and on the offsets as given by the differences between the observed and ephemeris positions of all satellites. We have, for the overall offsets of the five satellites, -29 (+/-63) mas in right ascension and -27 (+/-46) mas in declination. For the overall difference between the offsets of Oberon and those of the other satellites, we have +3 (+/-30) mas in right ascension and -2 (+/-28) mas in declination. Ephemeris positions for the satellites were determined from DE432+ura111. Comparisons using other modern ephemerides for the solar system -INPOP13c- and for the motion of the satellites -NOE-7-2013- were also made. They confirm that the largest contribution to the offsets we find comes from the motion of the barycenter of the Uranus system around the barycenter of the solar system, as given by the planetary ephemerides. Catalogues with the observed positions are provided.Comment: 13 pages, 21 figure