Mahogany
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Production of mahogany particleboards using branches and wood residues
Resumo A madeira de mogno (Swietenia macrophylla King) é uma das mais valiosas encontradas no Continente Americano. Esse trabalho visou avaliar a produção de painéis de partículas de resíduos dos galhos e troncos dessa espécie. Foram avaliados a viabilidade de produção, as propriedades físicas e mecânicas e, além disso, foi realizada a comparaç�
Ambiente Construído. Publicado em: 2022
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2. CLIMATE ZONING FOR THE CULTIVATION OF AFRICAN MAHOGANY SPECIES IN BRAZIL
ABSTRACT African mahogany is the common name given to different species of the genus Khaya. They are tree species native to the African continent, which have a wood quality that allows their noble use in making fine furniture, and in the civil and naval industries. Currently, African mahogany cultivation has received notoriety in Brazil and given its climati
CERNE. Publicado em: 2020-09
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3. Effect of canopy cover on development of cedar (Cedrela fissilis) and aspects of damage caused by Hypsipyla grandella in agroforestry system
Resumo Cedrela fissilis (Vell.) é uma importante espécie madeirável nativa da América do Sul que sofre frequente pressão do extrativismo ilegal. As iniciativas de cultivo comercial acumulam fracassos recorrentes pela ação da broca-do-cedro Hypsipyla grandella (Zeller, 1848). Um dos métodos de manejo utilizados para reduzir os ataques é o plantio em
Ciênc. Florest.. Publicado em: 02/12/2019
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4. Vulnerability of African mahogany to cattle predation in a silvipastural system
Resumo: O objetivo deste trabalho foi avaliar a incidência e a intensidade de danos causados por bovinos ao mogno-africano (Khaya grandifoliola) e a vulnerabilidade desta espécie em sistema silvipastoril. As árvores foram plantadas em linhas simples, arranjadas em 20x2 m. No terceiro ano, os bovinos foram introduzidos na área. Foram estabelecidas três c
Pesq. agropec. bras.. Publicado em: 21/10/2019
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5. First Report of Eutetranychus banksi (McGregor) on Mahogany (Swietenia macrophylla King)
ABSTRACT Texas citrus mite, Eutetranychus banksi (McGregor) (Acari: Tetranychidae: Tetranychinae), considered a serious pest of the citrus crop in some countries, is reported for the first time on mahogany seedlings (Swietenia macrophylla King, Meliaceae) in Brazil, causing foliar tanning with chlorotic spots and premature fall of leaves.
Floresta Ambient.. Publicado em: 08/08/2019
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6. First Report of Parasaissetia nigra in Khaya ivorensis Seedlings in Brazil
ABSTRACT The objective of this research is to report the occurrence of the nigra scale Parasaissetia nigra (Nietner, 1861) (Hemiptera: Coccidae) in mahogany (Khaya ivorensis) seedlings in a forest nursery in Mato Grosso state. In September 2017, the infestation was detected on the leaves and branches of the plants, causing injury and the death of the apical
Floresta Ambient.. Publicado em: 15/07/2019
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7. A Comparative Study on Chemical Composition, Antileishmanial and Cytotoxic Activities of the Essential Oils from Leaves of Guarea macrophylla (Meliaceae) from Two Different Regions of São Paulo State, Brazil, Using Multivariate Statistical Analysis
Meliaceae representatives are economically important in several aspects including the production of highly prized woods (mahogany, cedar, etc.), constituents for cosmetics, and insecticides. The present study aimed to verify the chemical composition as well as leishmanicidal and cytotoxic potential of essential oils from leaves of two different populations o
J. Braz. Chem. Soc.. Publicado em: 04/07/2019
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8. Volume equations for Khaya ivorensis A. Chev. plantations in Brazil
Abstract African mahogany (Khaya spp.) plantations are in expansion in Brazil and in the world. This fact justifies the need for studies related to its growth and yield. This paper aimed to evaluate the performance of single-entry and double-entry models for estimating merchantable and total volume for Khaya ivorensis plantations before the first thinning (7
An. Acad. Bras. Ciênc.. Publicado em: 03/09/2018
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9. Phragmalin Limonoids from Swietenia macrophylla and Their Antifeedant Assay against Mahogany Predator
The purification of the hexanic extract from the leaves of a native variety of mahogany collected in Santarém (Pará, Brazil) afforded eight new phragmalin limonoids along with eight known compounds. This variety, according to field observations, should be considered resistant against the specialist insect Hypsipyla grandella, that attacks the terminal shoo
J. Braz. Chem. Soc.. Publicado em: 2018-08
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10. First report of Hypsipyla grandella (Lepidoptera: Pyralidae) on African mahogany Khaya ivorensis
ABSTRACT The mahogany shoot borer Hypsipyla grandella Zeller is an important economic pest in all American tropical forests, because it prevents monoculture of valuable timber trees species like mahogany and cedar. The shoot borer damages several tree structures, especially the apical shoots, impairing the formation of the commercial stem. This pest can atta
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12
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11. AVALIAÇÃO DE ESPECTRÔMETRO NIR PORTÁTIL E PLS-DA PARA A DISCRIMINAÇÃO DE SEIS ESPÉCIES SIMILARES DE MADEIRAS AMAZÔNICAS
Supervising wood exploitation can be very challenging due to the existence of many similar species and the reduced number of wood identification experts to meet the demand. There is evidence that valuable endangered wood species are being smuggled disguised as other species. Near infrared spectroscopy (NIRS) and chemometrics has been successfully used to dis
Quím. Nova. Publicado em: 2017-05
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12. Exploratory Analysis of the Distribution of Lignin and Cellulose in Woods by Raman Imaging and Chemometrics
The determinations of cellulose and lignin are important in wood analysis from both perspectives: chemistry composition, commercial and industrial application of woods. In this context, Raman image spectroscopy was applied in the determination of cellulose and lignin distribution in wood surfaces of Swietenia macrophylla King (Mahogany) and Eucalyptus hybrid
J. Braz. Chem. Soc.. Publicado em: 2015-06