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Made available in DSpace on 2020-09-11T17:14:18Z (GMT). No. of bitstreams: 1 TS-0838.pdf: 3357952 bytes, checksum: 57203beaec98862669a3e2731a113b17 (MD5) Previous issue date: 2013 Dissertação (Mestrado em Ciências) - Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 2013. Orientadora: Claudia Moraes de Rezende, UFRJ; Coorientador: Humberto Ribeiro Bizzo, CTAA.

Made available in DSpace on 2017-12-07T19:55:10Z (GMT). No. of bitstreams: 2 license.txt: 2154 bytes, checksum: 4b0f01eb19f34a0ae8b22225f6f5120c (MD5) Corrigendum to Directionally solidified eutectic and off-eutectic mullite-zirconia fibres [J. Eur. Ceram. Soc. 33 (2013) 953-963]_10.1016j.jeurceramsoc.2013.03.008.pdf: 61221 bytes, checksum: 6902d342eff3afffb9919c253accdc2c (MD5) Previous issue date: 2013

Ceramic composites based on zirconia and barium zirconate are expected to possess good thermomechanical properties and mixed ionic (protons and oxide ions) transport properties. However, their processing by conventional sintering is difficult due to their refractoriness. This work reports the processing of a directionally solidified ZrO2-BaZrO3 eutectic by the laser floating zone (LFZ) method, with a focus on the effect of growth rates between 20 mm/h and 100 mm/h. X-ray diffraction and Raman spectroscopy data confirmed the presence of tetragonal ZrO2 and cubic BaZrO3 phases. Scanning electron microscopy reveals a fine eutectic microstructure, changing from coupled to colony-type morphology with increasing growth rate. Periodically spaced bands with a coarse eutectic microstructure are also observed. X-ray energy dispersive spectroscopy shows that the Y tends to occupy the ZrO2 lattice. Both ZrO2 and BaZrO3 phases display contiguity without interphase boundaries, according to impedance spectroscopy data. It is further shown that the ionic conductivity of the fibers is not influenced by the water vapour partial pressure, and it is slightly lower (9.7 x 10(-3) S cm(-1) at 824 degrees C) than for pure YSZ (ZrO2)0.97(Y2O3)(0.03) (1.6 x 10(-2) S cm(-1) at 800 degrees C). These results suggest that oxide ion transport through zirconia dominates the conduction mechanism, in agreement with the observed preferential location of yttrium in the zirconia phase.

The aim of this study was to evaluate a manual tube method for concentrating cat platelets and consequently produce autologous platelet concentrates (APCs) or platelet rich plasma (PRP), for clinical and experimental purposes. The PRP were obtained by venous blood collection in tubes with ACD solution that were spun at 85 g for 6 minutes. The cell counts of whole blood and PRP, were statistically different (P < 0.01) between cell values for platelets, leukocytes, granulocytes, monocytes, but not for lymphocytes. We found a strong positive correlation (ρ = 0,734 P = 0,01) between the number of platelets in whole blood and platelets in the PRP. The collection efficiency of platelets was 50% and the concentration of platelets was 147.7% higher in PRP in comparison with the whole blood samples. The results indicated that this simple centrifugation tube method allows concentrating cat platelets., El objetivo de este estudio fue evaluar un método manual para concentrar plaquetas de gato y, en consecuencia, producir concentrados autólogos de plaquetas (APCs) o plasma rico en plaquetas (PRP) con propósitos clínicos y experimentales. El PRP se obtuvo por la extracción de sangre venosa en tubos con solución ACD que fueron centrifugados a 85 g durante 6 minutos. Para los recuentos celulares de sangre entera y PRP, se encontraron diferencias estadísticamente significativas (P < 0,01) entre los valores de las plaquetas, leucocitos, granulocitos y monocitos, pero no entre los recuentos de linfocitos. Se encontró una fuerte correlación positiva (ρ = 0,734 P = 0,01) entre el número de plaquetas en sangre entera y plaquetas en el PRP. La eficiencia de recolección de plaquetas fue de 50% y la concentración de plaquetas fue de 147,7% mayor en los PRPs, en comparación con las muestras de sangre entera. Los resultados indican que este método de centrifugación simple permite concentrar plaquetas en el gato. &nbsp

Cranial cruciate ligament rupture (CCLR) is one of the main orthopedic problems that could produce hind limb lameness in dogs. Even though this problem can be surgically treated the development and progression of osteoarthritis are typical features. A case of a dog that received postoperative intra-articular injections of autologous platelet concentrates (APCs) after the surgical reparation of a CCLR is described. The clinical, radiographic, and gait analysis results could potentially support the postoperative use of intra-articular injections of APCs as an adjunctive therapy in the CCLR surgical reparation. &nbsp, La ruptura del ligamento cruzado anterior (RLCA) es uno de los principales problemas ortopédicos que producen cojera de los miembros posteriores en perros. A pesar de que este problema sea tratado quirúrgicamente el desarrollo y progresión de la osteoartritis son típicamente característicos. Se describe un caso de un perro que recibió inyecciones intraarticulares de concentrados autólogos de plaquetas (APCs) durante el posoperatorio después de la reparación quirúrgica de una RLCA. Los resultados clínicos y radiográficos y el análisis de la marcha mediante plataforma de fuerza podrían potencialmente soportar la utilización posoperatoria de inyecciones intraarticulares de APCs como terapia coadyuvante en el tratamiento quirúrgico de la RLCA en perros. &nbsp

Central Rio de Janeiro, Brazil.To compare the impact of routine DOTS vs. enhanced DOTS (DOTS-Ampliado or DOTS-A) on tuberculosis (TB) incidence.Cluster-randomized trial in eight urban neighborhoods pair-matched by TB incidence and randomly assigned to receive either the DOTS-A or DOTS strategy. DOTS-A added intensive screening of household contacts of active TB cases and provision of treatment to secondary cases and preventive therapy to contacts with latent TB infection (LTBI) to the standard DOTS strategy. The primary endpoint was the TB incidence rates in communities after 5 years of intervention.From November 2000 to December 2004, respectively 339 and 311 pulmonary TB cases were enrolled and 1003 and 960 household were identified in DOTS and DOTS-A communities. Among contacts from DOTS-A communities, 26 (4%) had active TB diagnosed and treated, 429 (61.3%) had LTBI detected and 258 (60.1%) started preventive therapy. TB incidence increased by 5% in DOTS communities and decreased by 10% in DOTS-A communities, for a difference of 15% after 5 years (P = 0.04).DOTS-A was associated with a modest reduction in TB incidence and may be an important strategy for reducing the burden of TB.

Submitted by Manuel Brandão (mbrandao@estsp.ipp.pt) on 2014-03-25T15:42:08Z No. of bitstreams: 1 ART_MPinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Submitted by Manuel Brandão (mbrandao@estsp.ipp.pt) on 2014-03-27T13:17:49Z No. of bitstreams: 1 ART_APinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Approved for entry into archive by Luís Miguel Durão (lmd@isep.ipp.pt) on 2014-03-27T17:24:18Z (GMT) No. of bitstreams: 1 ART_APinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Submitted by Manuel Brandão (mbrandao@estsp.ipp.pt) on 2014-03-27T17:55:50Z No. of bitstreams: 1 ART_APinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Approved for entry into archive by Luís Miguel Durão (lmd@isep.ipp.pt) on 2014-03-27T18:36:22Z (GMT) No. of bitstreams: 1 ART_APinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Approved for entry into archive by Ana Rebelo (amsr@isep.ipp.pt) on 2014-03-28T12:14:52Z (GMT) No. of bitstreams: 1 ART_APinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Made available in DSpace on 2014-03-28T12:14:52Z (GMT). No. of bitstreams: 1 ART_APinto_2010_CIDEM.pdf: 274528 bytes, checksum: 3e3265e4340348b0412285f28eae1b04 (MD5) Previous issue date: 2010

Nanocrystalline diamond (NCD) coatings offer an excellent alternative for tribological applications, preserving most of the intrinsic mechanical properties of polycrystalline CVD diamond and adding to it an extreme surface smoothness. Silicon nitride (Si3N4) ceramics are reported to guarantee high adhesion levels to CVD microcrystalline diamond coatings, but the NCD adhesion to Si3N4 is not yet well established. Micro-abrasion tests are appropriate for evaluating the abrasive wear resistance of a given surface, but they also provide information on thin film/substrate interfacial resistance, i.e., film adhesion. In this study, a comparison is made between the behaviour of NCD films deposited by hot-filament chemical vapour deposition (HFCVD) and microwave plasma assisted chemical vapour deposition (MPCVD) techniques. Silicon nitride (Si3N4) ceramic discs were selected as substrates. The NCD depositions by HFCVD and MPCVD were carried out using H2–CH4 and H2–CH4–N2 gas mixtures, respectively. An adequate set of growth parameters was chosen for each CVD technique, resulting in NCD films having a final thickness of 5 m. A micro-abrasion tribometer was used, with 3 m diamond grit as the abrasive slurry element. Experiments were carried out at a constant rotational speed (80 r.p.m.) and by varying the applied load in the range of 0.25–0.75 N. The wear rate for MPCVD NCD (3.7±0.8 × 10−5 m3N−1m−1) is compatible with those reported for microcrystalline CVD diamond. The HFCVD films displayed poorer adhesion to the Si3N4 ceramic substrates than the MPCVD ones. However, the HFCVD films show better wear resistance as a result of their higher crystallinity according to the UV Raman data, despite evidencing premature adhesion failure.

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SETTING: Four regional laboratories belonging to the Mycobacteria Reference Laboratory of São Paulo State, Brazil. OBJECTIVE: To evaluate the nitrate reductase assay (NRA) for rifampicin (RMP) susceptibility testing of Mycobacterium tuberculosis directly from clinical sputum samples of patients with pulmonary tuberculosis (TB). DESIGN: Performance of the NRA for detection of M.tuberculosis susceptibility to RMP was evaluated with 210 clinical sputum samples received by the participating laboratories during 2005 and 2006 and compared with the results of the direct proportion method. RESULTS: Susceptibility tests performed using the NRA and the direct proportion method showed 204 susceptible isolates and six isolates resistant to RMP by both methods. NRA sensitivity and specificity for RMP was 100%. The NRA results of susceptibility tests against RMP were available in 15 days for 87% of the samples. The results showed that NRA may yield a rapid answer in determining resistance for the majority of sputum samples with smear results reported as 3+ and 2+. CONCLUSION: The results demonstrate the feasibility of NRA for screening resistant strains in sputum samples from patients with pulmonary TB. NRA represents a rapid and low-cost alternative method that might be used in microbiological laboratories where resources are scarce.

This work was aimed at evaluating the invertebrate macrofauna community in the soil, by means of its abundance and richness of groups under different plant covers in the no-till system. Evaluations were performed at the experimental field of Embrapa Agropecuaria Oeste, in the municipal district of Dourados-MS, on a Typic Hapludox under conventional, no-till, and natural systems. Samplings were performed in December 2000, June 2001, January 2002, and June 2002. Five soil monoliths measuring 0.25 x 0.25 m width and 0.30 m depth were sampled along a transect. Turnip residues before a corn crop (turnip/corn) and soybean residues before wheat and turnip crops (soybean/wheat and soybean/turnip) provided positive effects on the density and diversity of the edaphic macrofauna community.

The aim of this study was to determine the frequency of leptospirosis in 400 dogs from rural and urban areas that attended veterinary practices in Valdivia (Chile), using the Microscopic Agglutination Test (MAT). Each serum sample was tested against eight serovars of leptospira(hardjo, pomona, canicola, ballum, icterohaemorrhagiae, tarassovi, grippotyphosa, autumnalis),14.8% of the dogs showed a positive leptospirosis title with the majority of them reacting to the serovarscanicola, icterohaemorrhagiaeandballum.Most of these sera had titles between 1/400 and > 1/1600. The results presented in this study do not show a significant difference in relation to gender, origin (urban/rural), breed or vaccination status. A relationship was found between the state of dogs living in the wild and the probability of contracting the disease and vaccinated dogs in relation to the infection with the serovarballum,being much more likely for vaccinated dogs to contract an infection with this serovar than it is for unvaccinated dogs. Additionally, the study compared the MAT, isolation and indirect immunofluorescence (IFl) techniques using renal tissue of 50 urban dogs. For the IFl study, hyperimmuneserum was obtained from rats inoculated with the serovarscanicolaandicterohaemorrhagiae.Isolation from renal tissue was unsuccessful, although 14% showed a positive response to MAT and 10% were positively identified with IFL The hyperimmuneserum used in the IFl technique was not serovar specific. The Microscopic Agglutination Test showed a higher sensibility and specificity compared to the isolation and indirect immunofluorescence techniques. &nbsp, La leptospirosis es considerada una de las zoonosis más difundidas y un serio problema de salud pública en el mundo entero. El perro actúa como un potencial diseminador de esta enfermedad ya que mantiene una estrecha relación con el hombre, y al mismo tiempo con otros animales tanto domésticos como salvajes. A pesar de su importancia, la leptospirosis canina frecuentemente es subdiagnosticada. En el presente estudio se determinó la frecuencia de leptospirosis en 400 perros, tanto de la zona urbana como rural, atendidos en clínicas de la ciudad de Valdivia (Chile); tal determinación se realizó mediante el test de aglutinación microscópica (MAT). Cada suero se enfrentó a ocho serovares de leptospira, encontrándose un 14,8% de caninos positivos, de los cuales el mayor porcentaje reaccionó a los serovarescarneóla, icterohaemorrhagiaeyballum.La mayoría de estos sueros lo hizo a títulos entre 1/400 y > 1/1.600. Los resultados obtenidos en el presente trabajo no muestran diferencias significativas en relación al sexo, procedencia (rural/urbano), raza, animales vacunados y no vacunados. Sí se presentó relación entre el estado de perro vago y la probabilidad de contraer la enfermedad, y entre los valores obtenidos para los perros vacunados con respecto a la infección por el serovarballum,que sugerirían una mayor probabilidad de contraer la infección por este serovar en los perros vacunados relativo a los perros no vacunados. Se compararon, además, las técnicas MAT, aislamiento e inmunofluorescencia indirecta (IFI), a partir de tejido renal. Para realizar la IFI, se obtuvo suero hiperinmune inoculando ratas con los serovarescanicolaeicterohaemorrhagiae.Se encontró un 14% de caninos positivos a MAT, frente a los serovarescanicola, icterohaemorrhagiaeyballum.La mayoría de estos sueros lo hizo a títulos entre 1/400 y > 1/1.600. No se pudo obtener ningún aislamiento a partir de tejido renal, a pesar de que algunos de estos individuos reaccionaron al test de aglutinación microscópica - MAT (14%) y a la inmunofluorescencia indirecta - IFI (10%). El suero hiperinmune obtenido para la realización de esta última técnica no sería serovar específico. El test de aglutinación microscópica presentó mayor sensibilidad y especificidad que las técnicas de aislamiento e inmunofluorescencia indirecta. &nbsp

Ring-on-ring tribological experiments were performed with hybrid mechanical seals with silicon nitride (Si3N4) rings. The K x PV product, where K is the wear coefficient, P the sealing pressure, and V the linear speed, is proposed as a novel parameter to characterize the total working range of a mechanical seal system, with the advantage of directly indicating the thickness reduction for a certain time of service. The KxPV criterion is represented in a map form called ‘‘functionality diagram.’’ The rotary Si3N4 rings show the better behavior (KxPV=0.05 µm/h) against WC–Co mating faces.

O diamante natural, dada a sua extrema dureza, apresenta elevada resistência ao desgaste. No entanto, além do seu elevado custo, caracteriza-se por uma forte anisotropia no comportamento tribológico. Estas limitações são ultrapassadas pela utilização de revestimentos de diamante obtidos por deposição química em fase vapor (CVD), que pela sua natureza policristalina combinada com a retenção das propriedades de excepção do diamante, proporcionam superfícies com elevado desempenho tribológico. Os revestimentos de diamante CVD podem ser depositados sobre substratos de natureza diversa. Porém, de modo a garantir elevados níveis de adesão, os cerâmicos à base de nitreto de silício (Si3N4) são substratos particularmente atractivos dado possuírem natureza carburígena e um coeficiente de expansão térmica próximo do do diamante. No presente trabalho foram produzidas por sinterização amostras densas de Si3N4, as quais foram posteriormente revestidas a diamante obtido por deposição química a partir da fase gasosa activada por plasma de micro-ondas (MPCVD). Os testes tribológicos foram realizados na configuração esfera-placa (BOF), na ausência de lubrificação e em atmosfera ambiente, envolvendo pares próprios de diamante CVD. A carga normal aplicada variou entre 10 N e 80 N, mantendo-se constante a frequência (1 Hz) de oscilação da placa. O comportamento tribológico foi caracterizado por valores do coeficiente de atrito em regime estacionário extremamente baixos (f ~ 0.03-0.04), acompanhados de taxas de desgaste denotando um regime de desgaste suave a muito suave (10-8 ≤ K ≤10-7 mm³N-1m-1). O principal mecanismo de desgaste consistiu na clivagem dos cristais de diamante paralelamente ao plano de deslizamento, resultando no polimento à escala fina das superfícies em interacção tribológica. Due to its extreme hardness natural diamond posses a high wear resistance. However, apart from the high cost, it is characterised by a strong anisotropy in terms of tribological behaviour. These limitations are overcome using diamond coatings produced by chemical vapour deposition (CVD) which due to their polycristalline nature, while retaining the extreme properties of natural diamond, make surfaces with high tribological performance. CVD diamond coatings can be deposited on various types of substrates. However, in order to sustain high levels of adhesion, silicon nitride (Si3N4) based ceramics constitute a particularly attractive substrate material due to its carburizing nature and low thermal expansion coefficient mismatch with diamond. In the present work, dense Si3N4 samples were diamond coated using the microwave plasma activated chemical vapour deposition (MPCVD) technique. The tribological tests were performed using a ball-on-flat (BOF) configuration on self-mated diamond CVD pairs, without the presence of lubrication in ambient atmosphere. The applied normal varied in the range 10-80 N, while keeping the frequency (1 Hz) constant throughout the tests. The tribological behaviour was characterised by extremely low steady-state friction coefficient values (f ~ 0.03-0.04), accompanied by wear rates denoting a very mild to mild wear regime (10-8£ K £ 10-7 mm³N-1m-1). The main wear mechanism consisted on the truncating of diamond crystals parallel to the plane of sliding, resulting in a self-polishing of the interacting surfaces at the micro-scale level.

La identificación humana es un proceso que reúne las más diversas áreas del conocimiento, pudiendo estar o no asociada a recursos computarizados o de imágenes. Los medios más comunes de identificación humana son el reconocimiento visual hecho por parientes o amigos y la identificación por medio de la Dactiloscopía, pero ambos tienen sus limitaciones, pues los cuerpos que se presentan carbonizados, esqueletizados o en fase adelantada de descomposición dificultan la identificación por medio de estos métodos. La Odontología se destaca en el medio pericial como una ciencia plenamente capacitada para ofrecer datos en la identificación de cuerpos, pues no solo el aparato estomatognático, sino también el cráneo puede ofrecer elementos valiosos que posibiliten la identificación positiva. Para que el proceso de identificación por los dientes sea efectivo, es necesaria una buena documentación del tratamiento realizado en cada paciente. Además de las anotaciones ejecutadas por el odontólogo, otro recurso de gran valor es la toma radiográfica. El presente relato buscó demostrar la importancia de la documentación odontológica en la identificación humana, resaltando, en particular, el valor de las radiografías odontológicas confeccionadas durante el tratamiento clínico de rutina, como prueba o documento a ser utilizado en los eventuales casos de esclarecimiento a la Justicia. La identificación positiva de la víctima fue posible gracias a la utilización de las radiografías encontradas en la documentación odontológica y la comparación de las mismas con las obtenidas del cadáver. El proceso criminal que apuraba las circunstancias de la muerte de la víctima, bien como la posible autoría del crimen solo tuvo su desenvolvimiento después de la identificación odonto-legal del cadáver (viabilización de denuncia al Ministerio Público). Human identification is a process that reunite the more different areas of knowledge, and it may be associated or not to computerize resources or images. The most common means of human identification are the visual recognition made by relatives or friends and the identification by means of fingerprints, but both have their limitations, since carbonized corpses, skeletal corpses or corpses in decomposition make difficult the identification by means of these methods. Dentistry is largely emphasized as a science qualifies to offer data for human identification, since not only oral cavity but cranium may offer elements to make possible positive identification. To effective the process of human identification it is necessary a good documentation of dental treatments in each patient. Another valuable resource is dental radiograph. The present case tempt to demonstrate the importance of dental records in human identification, standing out in particular, the value of dental radiographs made during clinical treatment, as a prove or document to help Justice. The positive identification of the victim was possible due to the comparison of dental radiographs fount in dental records from the victim. The criminal process surrounds circumstances about dead, as well as the possible authorship of the crime was resolved after odonto-legal identification of the body. A identificação humana são um processo que reúna áreas diversas do conhecimento, podendo ser ou non associado aos recursos computarizados ou de imagens. Calcule a média das as mais comuns da identificação humana são o visual reconhecimento feito por parentes ou amigos e a identificação perto meios do Dactiloscopía, mas ambos têm suas limitações, então os corpos que parecem carbonizados, esqueletizados ou em fase avançada da decomposição que fazem difícil a identificação por meio destes métodos. A Odontologia está para fora nos meios peritos como uma ciência totalmente permitiu de oferecer dados na identificação dos corpos, então non solo o instrumento do estomatognático, mas também o crânio pode oferecer os elementos valiosos que fazem possíveis a identificação positiva. De modo que o processo da identificação pelos dentes seja eficaz, uma documentação boa do tratamento feito em cada paciente é necessária. Além às anotações executadas pelo dentista, um outro recurso do valor grande é fazer exame do radiográfico. A história atual procurada para demonstrar a importância da documentação odontologica na identificação humana, estando para fora, no indivíduo, o valor do fez raios X odontológicas durante o tratamento clínico da rotina, como o teste ou o original a ser usados nos exemplos possíveis do esclarecimento em justiça. A identificação positiva da vítima era possíveis devido ao o uso dos raios X encontrou na documentação odontologica e comparação das mesmas com obtidas do corpo. O processo criminal de que preocupou as circunstâncias da morte a vítima, poço porque a responsabilidade possível do único crime teve o desarrolho após a identificação odonto-legal do corpo (viabilizassem do denuncia ao ministério público).

Este trabalho é dedicado à análise das características do atrito e desgaste de compósitos carbono-carbono unidireccionais e bidireccionais em deslizamento como pares dissemelhantes na geometria pino-disco, tendo em conta a influência da velocidade de deslizamento (0.5v3.5 ms-1) e da temperatura de teste (22ºCT600ºC). No que respeita aos parâmetros tribológicos, o coeficiente de atrito caracterizou-se por valores próximos de 0.25 para o deslizamento à temperatura ambiente e diminuiu para aproximadamente 0.1 para os testes acima da temperatura ambiente. A amplitude de variação do coeficiente de atrito aumentou com a velocidade e foi praticamente nula para o deslizamento acima da temperatura ambiente. Para o coeficiente de desgaste foram obtidos valores inferiores a 10-6 mm3N-1m-1 para o deslizamento à temperatura ambiente e baixa velocidade, mas foi observada elevada degradação superficial para condições extremas de velocidade de deslizamento ou de temperatura de teste. A perda da resistência ao desgaste dos compósitos carbono-carbono foi devida essencialmente a mecanismos de fractura superficial e descoesão fibra-matriz.

O objetivo deste trabalho foi avaliar o efeito do armazenamento na qualidade fisiologica de sementes de cinco populacoes de milho submetidas aos estresses de Al no solo e de seca no florescimento. Cinco populacoes de milho (CMS06, CMS35, CMS36, CMS54 e Milho Metro) foram cultivadas em solos com dois niveis de fertilidade: o primeiro, apresentando alta saturacao de bases (V = 67%), e o segundo, alta saturacao de Al (m = 54%). As populacoes de milho foram tambem submetidas a irrigacao plena e a supressao de irrigacao durante o florescimento. As sementes obtidas dessas populacoes foram armazenadas no laboratorio de sementes sob condicoes ambientais. A qualidade fisiologicas das sementes foi determinada no inicio e aos 30, 90 e 210 dias de armazenamento. As sementes da populacao CMS36 apresentaram maior vigor quando produzidas em solos com alta saturacao de aluminio. A populacao CMS54 foi a mais estavel com relacao a qualidade fisiologica das sementes produzidas em diferentes ambientes. As sementes das populacoes CMS35, CMS36, CMS54 e Milho Metro foram mais estaveis com relacao a qualidade fisiologica, durante o periodo de armazenamento, do que as da CMS06. Made available in DSpace on 2017-06-09T23:51:45Z (GMT). No. of bitstreams: 1 Efeitoarmazenamento.pdf: 245400 bytes, checksum: c458821989a88b054f47baa85f4aa3ea (MD5) Previous issue date: 2002-01-09

x Edição de resumos do 7º Congresso Brasileiro de Fisiologia Vegetal, Brasília, 1999.