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Itens para a visualização no momento 31-40 of 322
Produção e caracterização de filmes nanocelulósicos a partir de polpa de Acacia mearnsii de Wild. com diferentes teores de lignina residual
(Universidade Federal de Santa Maria, 2019-02-19)
The concern with the environment has been impelling researches about the elaboration of maintainable and biodegradable materials that reduce the impacts to the ecosystem. In the pulp and paper sector, nanotechnology emerges ...
Enraizamento de miniestacas e parâmetros de validação de clones de ipê-roxo para a propagação vegetativa
(Universidade Federal de Santa Maria, 2019-03-22)
The objective of this work was to evaluate the influence of shoot length, size and leaf area of minicuttings, application of indolebutyric acid (IBA) and to estimate the Pearson correlation and genetic parameters coefficients ...
Rizogênese in vitro e aclimatização de plantas micropropagadas de Peltophorum dubium (Sprengel) Taubert
(Universidade Federal de Santa Maria, 2019-02-22)
Peltophorum dubium (Sprengel) Taubert, is native forest species of Brazil, and due to its rusticity and fast growth presents great ecological importance for projects to recovery of degraded areas. The present study proposes ...
Potencial silvicultural de Myracrodruon balansae (Engler) D. A. Santin: espécie em perigo de extinção no sul do Brasil
(Universidade Federal de Santa Maria, 2019-03-01)
Myracrodruon balansae (Engler) D. A. Santin (pau-ferro-do-sul) belongs to the
Anacardiaceae family and is a south Brazil native plant. It has a hard wood (1.1 to 1.25 g.cm-
3) generally applied in rural constructions, ...
Utilização de resíduos do processamento mecânico da madeira para a fabricação de chapas de partículas aglomeradas
(Universidade Federal de Santa Maria, 2004-01-26)
The objective of this work was to investigate the quality of particleboard manufactured with
residue of slash pine, coming from the wood mechanical processing.
The boards were produced with two types of residues, ...
Florística, solos e abundância isotópica de 13C em áreas de floresta e de campo no bioma Pampa
(Universidade Federal de Santa Maria, 2015-02-26)
To establish strategies for use, management and conservation of the Pampa Biome, this research describes the current vegetation, soil physical properties and, to identified groups of plants that influenced on soil organic ...
Variabilidade na amostragem de serrapilheira em floresta estacional decidual no município de Silveira Martins/RS
(Universidade Federal de Santa Maria, 2019-02-25)
The objective of this work was to study the origin of the variance in litterfall production and the main contributing factors. The study was carried out in a fragment of Seasonal Decidual Forest in the municipality of ...
Utilização do tanino como preservante natural da madeira de Acacia mearnsii e sua toxidez ao fungo apodrecedor Pycnoporus sanguineus
(Universidade Federal de Santa Maria, 2015-02-20)
The present study aimed to evaluate the use of tannin as natural preservative of Acacia mearnsii and its toxicity to the wood-decay fungus Pycnoporus sanguineus. It was divided in two main stages: the first was to find the ...
Caracterização de painéis WPC fabricados com partículas de madeira de pinus e recicláveis de poliestireno
(Universidade Federal de Santa Maria, 2015-02-20)
Now a days, there is a worldwide tendency to value materials that, in addition to low cost, can be environmentally correct. This last condition refers to renewable, biodegradable and recyclable aspects that can be presented ...
Caracterização tecnológica da madeira de Maclura tinctoria (L.) D. Don ex steud.
(Universidade Federal de Santa Maria, 2016-02-26)
The objective of this study was to characterize technologically the wood of Tajuva (Maclura tinctoria). Therefore, there were physical, mechanical tests, of accelerated rot fungi in the laboratory and colorimetric analysis ...