Fibre Length Variation in Stem and Branches of Eleven Tropical Hardwoods

Bhat, K. M.; Bhat, K. V.; Dhamodaran, T. K.

doi:10.1163/22941932-90001113

Cited by 25 publications

(12 citation statements)

References 2 publications

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“…22 e 31). Os resultados observados são semelhantes aos encontrados por Bisset & Dadswell (1958), Hamilton (1961), Parameswaran & Liese (1974), Giroud (1977), Fukazawa & Ohtani (1982), Foekel et al (1983), Bhat et al (1989) e Trugilho et al (1996).…”

Section: Resultsunclassified

Variação estrutural quantitativa no lenho de Terminalia ivorensis A. Chev., Combretaceae

et al. 2003

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RESUMO -(Variação estrutural quantitativa no lenho de Terminalia ivorensis A. Chev., Combretaceae). Com o objetivo de analisar a variação anatômica ao longo do caule de Terminalia ivorensis, estudaram-se amostras de madeira de três indivíduos, nos planos radial e axial. Para tal, corpos de prova foram obtidos a partir de discos de madeira, de 2 em 2cm, no sentido medula-câmbio. A metodologia usada para desenvolver o trabalho foi aquela tradicionalmente recomendada para estudos em anatomia vegetal. A descrição anatômica realizada seguiu as recomendações do IAWA Committee. No sentido radial do caule, alguns elementos anatômicos apresentaram tendências de variação definidas e significativas estatisticamente quando aplicado o teste Tukey para comparação de médias. São eles: freqüência, diâmetro e comprimento dos elementos de vaso, freqüência de raios/mm linear, comprimento dos raios em número de células, e comprimento e espessura da parede das fibras. Já no sentido axial, todas as variáveis analisadas não se mostraram estatisticamente significativas. Os resultados observados devem-se, principalmente, à caracterização bem definida dos lenhos juvenil e adulto na madeira de Terminalia ivorensis.Palavras-chave -Combretaceae, Terminalia ivorensis, variação anatômica quantitativa, xilema, lenho juvenil, lenho adulto ABSTRACT -(Wood structural quantitative variation of the Terminalia ivorensis A. Chev., Combretaceae). In order to verify anatomical stem variation of the Terminalia ivorensis wood, were studied wood samples at three different heights in the radial and axial planes. Proof bodies were gotten at a 2cm interval from the pith towards the vascular cambium. The utilized methodology to develop the job followed the traditionally recommended methodology for vegetable anatomy studies. The anatomical description followed the recommendations of the IAWA Committee. In the radial stem direction, some anatomic elements showed a well defined trend, which are statistically significant when using the Tukey test for measures comparison. They were: frequency, diameter and length of the vessel elements, ray frequency/linear mm, length of rays in number of the cells and fiber length and thickness. On the other side, in the axial stem direction, was not found anything statistically significant. This results were observed principally due the clear presence of the juvenile and adult wood in the lumber of Terminalia ivorensis.

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Section: Resultsunclassified

Variação estrutural quantitativa no lenho de Terminalia ivorensis A. Chev., Combretaceae

et al. 2003

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“…These results are compatible with the literature. It was shown that fiber length in the branches of hardwood species is significantly shorter than in the stem fibers (Manwiller, 1974;Taylor, 1977;Bhat and Kärkkäinen, 1981;Bhat et al, 1989). Longer and wider stem wood fibers were reported by Samariha et al (2011) and Jahan et al (2010) in Ailanthus altissima and Trema orientalis, respectively.…”

Section: Fiber Morphologymentioning

confidence: 99%

Utilization of the pomegranate tree (Punica granatum L.) in the paper industry

Gülsoy¹,

Pekgözlü²,

Aktaş³

2015

Turk J Agric For

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In this study, the chemical composition, fiber morphology, pulp, and paper properties of the pomegranate tree (Punica granatum L.) were determined. Stem and branch wood were analyzed separately. Kraft and kraft-anthraquinone (AQ) methods were used for the pulping processes. Stem wood showed superiority to branch wood with longer, wider, thicker-walled fibers. The holocellulose, α-cellulose, and lignin contents of branch and stem wood were 72.98%-73.50%, 38.37%-39.92%, and 21.04%-25.29%, respectively. In addition, the yield of kraft pulp made from stem wood was higher than that of branch wood. However, branch wood handsheets had higher strength properties and brightness than those of stem wood handsheets.

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“…Fiber length influences the tearing strength of paper. The higher of the fiber length had effect on the resistance of the paper to tearing (Oluwadare and Ashimiyu 2007, Bhat et al 1989, Wimmer et al 2002. Fiber diameter is the diameter of fibre measured from side to side end and it is usually measured across the fiber length.…”

Section: Introductionmentioning

confidence: 99%

Chemical and biometrical properties of plum wood and its application in pulp and paper production

Kiaei

Tajik

Vaysi

2014

Maderas, Cienc. tecnol.

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Plum (Prunus domestica) is one of the most widespread species of fruit trees in Asia and South-East Europe. There are large quantities of fruit wood trees without suitable usage in world. The aim of this research was to examine biometrical and chemical properties of the plum wood and its application in the pulp and paper industry. Five normal plum trees were randomly selected from Shahriyar province, Iran. A log cut down at stem (breast height) and branch for each of trees. The pith parts of cross-section were removed to examine the chemical (according to the TAPPI standard) and biometrical properties (according to the Franklin method). Results indicated that there were significant differences between stem and branch samples in fiber diameter and lumen diameter. Types of wood (branch and stem) had not significant differences on the chemical properties and fiber length, cell wall thickness and morphological properties. Among all of studied properties, the lignin, cellulose, fiber diameter, fiber lumen diameter, cell wall thickness and flexibility coefficient in branch wood is higher than stem wood. Although Runkel and flexibility coefficients of stem and branch fibers are lower than the accepted standard, but because of closing amount of lignin, extractive composition and fiber length to hardwood species, it can solve some of the problems of the lack of raw materials for paper production.

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Fibre Length Variation in Stem and Branches of Eleven Tropical Hardwoods

Cited by 25 publications

References 2 publications

Variação estrutural quantitativa no lenho de Terminalia ivorensis A. Chev., Combretaceae

Variação estrutural quantitativa no lenho de Terminalia ivorensis A. Chev., Combretaceae

Utilization of the pomegranate tree (Punica granatum L.) in the paper industry

Chemical and biometrical properties of plum wood and its application in pulp and paper production

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