Basal Respiration
Mostrando 25-36 de 62 artigos, teses e dissertações.
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25. Compartimentos da matéria orgânica do solo sob sistemas de manejo e vegetação natural de cerrado / Soil organic matter pools under management systems and natural Cerrado vegetation
Different soil organic matter pools under management systems and natural Cerrado vegetation were studied. These pools were estimated using their carbon and nitrogen contents. Total soil organic carbon and total nitrogen (COT and NT), carbon and nitrogen of particulate organic matter (COP and NP), mineral-associated organic carbon and nitrogen (COM and NM), p
Publicado em: 2009
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26. Compartimentos da matéria orgânica do solo sob sistemas de manejo e vegetação natural de cerrado / Soil organic matter pools under management systems and natural Cerrado vegetation
Different soil organic matter pools under management systems and natural Cerrado vegetation were studied. These pools were estimated using their carbon and nitrogen contents. Total soil organic carbon and total nitrogen (COT and NT), carbon and nitrogen of particulate organic matter (COP and NP), mineral-associated organic carbon and nitrogen (COM and NM), p
Publicado em: 2009
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27. Supressividade natural de solos do Nordeste brasileiro à murcha-de-fusário e rizoctoniose do caupi.
The cowpea (Vigna unguiculata L.) is one of the main crops in the Northeast of Brazil especially for the small farmers. The Fusarium wilt and Rhizoctonia canker caused by Fusarium oxysporum f.sp. tracheiphilum and Rhizoctonia solani, respectively are the cowpea diseases showing more frequency and intensity in the Northeast of Brazil. This work aimed to evalu
Publicado em: 2009
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28. Indicadores microbiológicos e bioquímicos da qualidade do solo em transição para cultivo orgânico de feijoeiro comum (Phaseolus vulgaris L.) / Microbiological and biochemical indicators of the quality of ground transitioning to organic cultivation of common bean (Phaseolus vulgaris L.)
The soil quality indicators analyses during and after the transition period of conventional to organic production system are very important to evaluated the sustainability of agricultural systems. Soil microbiological and biochemical indicators shall quickly indicate changes occurred on both, soil management and production systems. The objective of this work
Publicado em: 2009
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29. Efeitos da ventilação mecânica e pressão positiva no final da expiração sobre a microcirculação mesentérica em ratos Wistar / Effects of mechanical ventilation and positive end-expiratory pressure on mesenteric microcirculation in Wistar rats
Ventilação mecânica (MV) com pressão positiva no final da expiração (PEEP) melhora a oxigenação sanguínea e oferta de oxigênio aos tecidos no tratamento da insuficiência respiratória aguda. No entanto, a pressão intratorácica elevada pode alterar o fluxo sanguíneo no mesentério que pode contribuir para complicações gastrointestinais durante
Publicado em: 2009
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30. Diversidade de glomeromycetes e atividade microbiana em solos sob vegetaÃÃo nativa do semi-Ãrido de Pernambuco
The occurrence of arbuscular mycorrhizal fungi (AMF) was studied in three areas of caatinga, located in the municipalities of Caruaru, Serra Talhada and Araripina, in Pernambuco. Soil samples were collected in August and December/2005 and August and October/2006. The AMF species were identified and the structure of the community, the mycorrhizal condition of
Publicado em: 2008
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31. Efeito do derivado quinazolinico PD153035 sobre a função mitocondrial : implicações na cardioproteção / Effect of the 4-anilinoquinazoline PD153035 on mitochondrial function : implication in cardioprotection
The action of the aminoquinazoline PD153035 on the mitochondrial functions was investigated. The addition of various PD153035 concentrations (5, 10, 20 and 40 μM) to liver mitochondria decreased the mitochondrial respiratory control, induced mitochondrial permeability transition cyclosporin A-sensitive, increased the mitochondrial calcium uptake capacit
Publicado em: 2008
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32. Diversidade microbiana em solos sob florestas de Araucaria angustifolia / Microbial diversity in soils under Araucaria angustifolia forests
The Ombrophilic Mixed Forest, also called Araucaria Forest, represents one of the richest remainders of subtropical pluvial forests in Brazil. Its main representative species is the endangered Araucaria angustifolia. The microbial diversity plays an important role in functioning of forest ecosystems. However, the microbial diversity in soils with araucaria f
Publicado em: 2008
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33. Atributos microbiológicos de um latossolo bruno submetido a diferentes sistemas de manejo e calagem / Soil microbiological atributtes of a brown latosol submitted to different management systems and liming
This work was conducted in Guarapuava, state of Paraná, in a southern brazilian oxisol, in a trial established in 1978. The aim of this work was to analyse the effect of different soil management systems and liming on the microbial biomass and its activity related to C and N in the soil. The managment systems evaluated were: no-tillage with lime incorporate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2007
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34. Efeitos da fertirrigação nitrogenada no carbono da biomassa microbiana do solo e nos componentes de produção de genótipos de cevada / Effect of nitrogen fertigation on soil microbial biomass and yield components of barley genotypes
The main objective of this study was to evaluate the effects of nitrogen fertigation on soil microbial biomass, and industrial/agronomic parameters of barley genotypes. The experimental design was of randomized blocks with split-splot scheme with three replications, where split plots represented the nitrogen levels and the periods of soil survey and genotype
Publicado em: 2007
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35. Fauna do solo e outros atributos edáficos como indicadores da qualidade ambiental em áreas com Araucaria angustifolia no Estado de São Paulo / Soil fauna and others edaphics attributes as environmental quality indicators in areas with Araucaria angustifolia in São Paulo State, Brazil
The study of biological soil quality indicators in areas with Araucaria is very important to understand ecological processes in these systems, since groups of the soil fauna are major factors in the decomposition and mineralization of organic matter, as well as modifiers of soil physical, chemical and biological properties and processes. The objective of thi
Publicado em: 2007
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36. Efeitos dos fungos micorrÃzicos arbusculares sobre o crescimento de espÃcies arbustivas e atividade microbiana em solo contaminado com metais pesados
The arbuscular mycorrhizal fungi (AMF) have been used in soil reabilitation programs due to the benefits to their hosts. In this work, microbial activity and tolerance of plants (Senna spectabilis, Caesalpinia ferrea, Erythrina velutina, Mimosa tenuiflora, M. caesalpiniaefolia and Ricinus communis) to heavy metal contaminated soils were evaluated. Samples of
Publicado em: 2006