Acacia Mearnsii
Mostrando 1-12 de 138 artigos, teses e dissertações.
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1. The performance of Acacia mearnsii De Wild for kraft pulping
RESUMO O crescente interesse mundial na polpa celulósica produzida a partir da madeira de Acacia mearnsii incentiva estudos que comprovem sua propensão e eficiência para esse fim. Dessa forma, o objetivo deste estudo foi avaliar as propriedades físico-químicas da madeira de Acacia mearnsii, bem como avaliar seu desempenho na produção de celulose kraft
Ciência Florestal. Publicado em: 2022
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2. Characterizing the Chemical Composition of Lipophilic Extracts from Acacia mearnsii Wood
The chemical composition of Acacia mearnsii wood extract is described in this paper for the first time. This wood is cultivated in Brazil and has been used to complement the demand for hardwood in the pulp industry. In this study, we performed extractions with acetone (total extracts) and dichloromethane (lipophilic extracts responsible for the pitch formati
J. Braz. Chem. Soc.. Publicado em: 2020-02
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3. Características físico-hídricas de substratos formulados com lodo de esgoto na produção de mudas de acácia-negra
Resumo Avaliou-se o efeito da retenção de água de substratos para plantas formulados a partir de diferentes proporções de lodo de esgoto (LETE) solarizado, na produção de mudas de acácia-negra (Acacia mearnsii). O experimento foi conduzido em casa de vegetação e no Laboratório de Física do Solo da Embrapa Clima Temperado. O LETE utilizado foi col
Ciênc. Florest.. Publicado em: 02/12/2019
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4. Elemental Chemical Composition of Forest Biomass at Different Ages for Energy Purposes
ABSTRACT This work aimed to evaluate the elemental composition of different biomass components of the forest species Acacia mearnsii De Wild, Eucalyptus grandis W. Hill ex Maiden, Mimosa scabrella Benth and Ateleia glazioviana Baill, at their first, third and fifth year after planting, aiming at bioenergetic use. The biomass elemental composition was determi
Floresta Ambient.. Publicado em: 29/07/2019
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5. SYNTHESIS, CHARACTERIZATION AND in vitro CYTOTOXICITY OF Acacia mearnsii PROANTHOCYANIDIN LOADED PLGA MICROPARTICLES
ABSTRACT One of the highlighted areas in the development of new materials is the generation of micro- and nanoparticles as drug carriers which allow the progress in formulations with the ability to release active agents in a controlled way. The proanthocyanidins (PAC) extracted from the bark of the Black Wattle have stood out for their biological activities.
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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6. Biological Control of Ceratocystis fimbriata by Bacillus subtilis on Acacia mearnsii Seedlings
RESUMO O objetivo deste trabalho foi avaliar o comportamento de isolados de Ceratocystis fimbriata obtidos de kiwi (Actinidia deliciosa) em mudas de acácia-negra (Acacia mearnsii De Wild.), o potencial de biocontrole in vitro de Bacillus subtilis sobre C. fimbriata e o comportamento in vivo de B. subtilis contra C. fimbriata em mudas de acácia-negra. Isola
Floresta Ambient.. Publicado em: 04/07/2019
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7. Additive and Non-additive Biomass Equations for Black Wattle
RESUMO Os objetivos desse trabalho foram propor equações aditivas de biomassa dos componentes (fuste e copa) com a biomassa total para a espécie acácia negra (Acacia mearnsii De Wild.) e demonstrar a inconsistência de equações de biomassa ajustadas independentemente. Dois procedimentos foram utilizados para ajustar equações não lineares de biomass
Floresta Ambient.. Publicado em: 08/04/2019
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8. Efeito da idade e do espaçamento na produção de biomassa de plantios florestais
RESUMO Esse trabalho teve como objetivo determinar o efeito da idade e do espaçamento de plantio na produção de biomassa das espécies florestais: Acacia mearnsii De Wild, Eucalyptus grandis W. Hill ex Maiden, Mimosa scabrella Benth e Ateleia glazioviana Baill. Foram considerados plantios com diferentes espaçamentos: 2,0×1,0 m, 2,0×1,5 m, 3,0×1,0 m e
Rev. Árvore. Publicado em: 18/10/2018
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9. Soil Macrofauna as Indicator of Environmental Recovery in a Mining Area
ABSTRACT This work aimed to characterize the composition of the soil macrofauna in non-mined and mined areas recovered with native vegetation, Eucalyptus dunnii Maiden and Acacia mearnsii De Wild. plantations, in a coal mine. Five areas were evaluated, namely, three non-mined areas and two mined and recovered areas. Six soil samples per area were collected
Floresta Ambient.. Publicado em: 13/09/2018
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10. Critical analyses when modeling tree biomass to ensure additivity of its components
ABSTRACT It is presented the theme additivity of biomass of tree components. To evaluate and discuss this context, experimental information collected in forests of Acacia mearnsii De Wild. was used. Equations for components (stem and crown) and total biomass were fitted by means of two procedures: 1) generalized nonlinear least squares and 2) weighted-nonlin
An. Acad. Bras. Ciênc.. Publicado em: 17/05/2018
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11. Conversion Efficiency of Photosynthetically Active Radiation Into Acacia mearnsii Biomass
ABSTRACT The objective of this experiment was to determine the conversion efficiency of intercepted photosynthetically active radiation into biomass of Acacia mearnsii De Wild. seedlings. A forest species, plastic tubes (90 cm3), and 11 evaluation periods (up to 180 days after emergence) were used in this study. The leaf area index (LAI), total dry biomass (
Floresta Ambient.. Publicado em: 01/02/2018
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12. Tannic extract potential as natural wood preservative of Acacia mearnsii
ABSTRACT High toxicity of the preservatives most frequently used in wood treatment and the resulting risks of handling pose a threat to small producers and to the environment. In an attempt to mitigate these problems, the present study was conducted with the objective of evaluating the preservative effect of tannic extract on biodeterioration of Acacia mearn
An. Acad. Bras. Ciênc.. Publicado em: 07/12/2017