Radial variations of wood different properties in Diospyros lotus

Majid Kiaei, Reza Bakhshi


Aim of study: The aim of this study was to determine some of the physical, biometry and mechanical strength properties of Diospyros lotus L. wood along radial direction from the pith to the bark and the relationship between wood various properties.
Area of study: The study area is located in north Iran in the province of Mazandarn.
Material and methods: Testing samples were taken at breast height of tree stem and three radial position of stem radius to determine physical (basic density), fiber biometry (fiber length, fiber diameter, cell-wall thickness) and mechanical properties (modulus of rupture and modulus of elasticity).
Main results: The results of ANOVA indicated that there are significant differences along radial direction in above mentioned properties for persimmon wood. Basic density, fiber length, fiber diameter, cell-wall thickness, modulus of elasticity and modulus of rupture increased along radial direction from pith toward the bark.
Research highlights: The persimmon wood isn’t suitable for pulp and paper production due to the unfavorable flexibility and Runkel coefficients.

Keywords: Diospyros lotus; basic density; fiber features; modulus of rupture; modulus of elasticity.

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Alden HA, 1995. Hardwoods of North America. Gen Tech FPL-GTR-83. US Department of Agriculture, Forest Service, Forest Product Laboratory, Madison, WI, USA.

Alteyrac J, Cloutier A, Zhang SY, 2006. Characterization of juvenile wood to mature wood transition age in black spurce (Piecea mariana) at different stand densities and sampling heights. Wood Sci Tech 40: 124-138. http://dx.doi.org/10.1007/s00226-005-0047-4

Ashori A, Nourbakhsh A, 2009. Studies on Iranian cultivated paulownia – a potential source of fibrous raw material for paper industry. Eur J Wood Prod 67: 323- 327. http://dx.doi.org/10.1007/s00107-009-0326-0

Bektas I, Tutus A, Eroglu H, 1999. A study of the suitability of Calabrian pine (Pinus brutia Ten.) for pulp and paper manufacture. Turk J Agric For 23: 589-599.

Bisset IJ, Dadswell HE, Wardrop B, 1951. Factors influencing tracheid length in conifer stems. Aust For 15: 17-30. http://dx.doi.org/10.1080/00049158.1951.10675795

Clark J, 1962. Effects of fiber coarseness and length, I. Bulk, burst, tears, fold and tensile tests. Tappi J 45: 628-634.

Casey JP, 1952. Properties of paper and converting. In: Pulp and paper chemistry and chemical technology. Interscience Publisher Inc, New York, vol 2. pp: 835-837.

Dinwoodie JM, 1965. The relationship between fibre morphology and paper properties: a review of literature. Tappi J 48: 440-447.

El-Hosseiny F, Anderson D, 1999. Effect of fibre length and coarseness on the burst strength of paper. Tappi J 82: 202- 203.

Enayati AA, Hamzeh Y, Mirshokrai SA, Molaii M, 2009. Papermaking potential of canola stalks. Bioresource 4(1): 245-256.

Ferriera AL, Severo ETD, Calonego FW, 2011. Determination of fiber length and juvenile and mature wood zones from Hevea brasiliensis trees grown in Brazil. Eur J Wood Prod 69: 659-662. http://dx.doi.org/10.1007/s00107-010-0510-2

Franklin FL, 1964. A rapid method for softening wood for microtome sectioning. Trop Woods Yale Univ Sch For 88: 35-36.

Gominho J, Figueira J, Rodrigues JC, Pereira H, 2001. Withintree variation of heartwood, extractives and wood density in the eucalypt hybrid urograndis Eucalyptus grandi s ⋅ E. urophylla). Wood Fiber Sci 33: 3-8.

Haygreen JG, Bowyer JL, 1996. Forest products and wood science: an introduction, 3rd ed. Iowa University Press, Ames.

Heräjärvi H, 2004. Static bending properties of Finnish birch wood. Wood Sci Tech 37: 523-530. http://dx.doi.org/10.1007/s00226-003-0209-1

Hosseini SZ, Naghdi R, 2004. Evaluation on juvenile period and fiber length variation of maple wood (Acer velutinum Boiss). J Agric Sci Natur Resour 11(2): 1-15

Hus S, Tank T, Goksal E, 1975. Considering eucalyptus (E. camaldulensis Dehnh) wood which grow in Turkey (in Tarsus-Karabacak) morphologically and opportunities for evaluating semi chemical cellulose in paper industry. Tubitak Publications, USA

Izekor DN, Fuwape JA, 2011. Variations in the anatomical characteristics of planting grown Tectona grandis wood in Edo State, Nigeria. Archives of Applied Science Research 3(1): 83-90.

Jang LC, Oh WG, Ahn GH, Lee SC, 2011. Antioxidant activity of 4 cultivars of persimmon fruit. Food Sci Biotechnol 20(1): 71-77. http://dx.doi.org/10.1007/s10068-011-0010-0

Kiaei M, 2011. Anatomical, physical and mechanical properties of eldar pine (Pinus eldarica Medw.) grown in the Kelardashat region. Turk J Agric For 35: 31-42.

Kord B, Kialashaki A, Kord B, 2010. The within-tree variation in wood density and shrinkage, and their relationship in Populus euramericana. Turk Agric For 34: 121-126.

Liao PY, Hu ZL, Ji WL, Wang LQ, Quan JY, 1981. Studies on the chemical components, fiber dimensions and pulping properties of sixteen species of fast growing wood. J Nanjing Technol. College For Prod 4: 16-25.

Mabilangan LC, Estudillo CP, 1996. Philippines woods suitable for kraft pulping process. Trade Bulletin Series 5: 1-9.

Matsushita Y, Jang LC, Imai T, Fukushina K, Lee Jn, Park HR, 2011. Antioxidant and cytotoxic activities of naphthalene derivatives from Diospyros Kaki. Wood Sci J 57: 161-165. http://dx.doi.org/10.1007/s10086-010-1147-9

Miyake M, 1968. Wood characteristics and kraft pulp properties of hardwood grown in Hokkaido. Japan Tappi 22: 600-610. http://dx.doi.org/10.2524/jtappij.22.12_600

Naji HR, Sahri MH, Nobuchi T, Bakar Suhaimi, 2012. Clonal and planting density effects on some properties of rubber wood (Hevea brasiliensis MUELL. ARF.). Bioresource 7(1): 189-202.

Noda E, Aoki T, Minato K, 2002. Physical and chemical characteristics of the blacked portion of Japanese persimmon (Diosypyros Kaki). Wood Sci J 48:245-249. http://dx.doi.org/10.1007/BF00771376

Ona T, Sonoda T, Ito K, Shibata M, Tamai Y, Kojima Y, Ohshima J, Yokota S, Yoshizawa N, 2001. Investigation of relationship between cell and pulp properties in Eucalyptus by examination of within-tree property variations. Wood Sci Tech 35: 363-375. http://dx.doi.org/10.1007/s002260100090

Panshin A, De Zeeuw C, 1980. Textbook of wood technology, 4th ed. McGraw-Hill, New York, USA. Parsapajouh D, 1998. Wood technology, 4th ed. Tehran University, No: 1851, Iran.

Quilho T, Miranda I, Pereira H, 2006. Within-tree variation in wood fibre biometry and basic density of the urograndis eucalyptus hybrid (Eucalyptus grandis ⋅ E. urophylla. IAWA J 27(3): 243-254.

Runkel R, 1949. Uber die herstellung von zellstoff aus hollz der gattung Eucalyptus und versuche mit zwei unterschiedlichen Eucalyptusarten. Das Papier 3: 476-490.

Tank T, 1978. Evaluating beech and hornbeam species in Turkey by natural sulfate semi chemical (NSSC) method. Istanbul University, Istanbul, Turkey.

Varghese M, Vishnu KNS, Bennet SSR, Jagades S, 1995. Genetic effect on wood and fibre traits of Eucalyptus grandis provenances. In: Eucalypt plantations: improving fibre yield and quality. CRCTHF-IUFRO Conference. 19- 24 February 1995, Hobart, Australia. pp: 64-67.

Wangaard FF, 1962. Contributions of hardwood fibres to the properties of kraft pulps. Tappi J 45: 548-556.

Wangaard FF, Woodson GE, 1973. Fiber length-fiber strength interrelationship for Slash pine and its effect on pulp sheet properties. Wood Sci J 5:235-240.

Xu F, Zhong XC, Sun RC, Lu Q, 2006. Anatomy, ultra structure, and lignin distribution in cell wall of Caragana korshinskii. Industrial Crops and Production 24: 186-193. http://dx.doi.org/10.1016/j.indcrop.2006.04.002

Zhang SY, 1997. Wood specific gravity-mechanical property relationship at species level. Wood Sci Tech 31: 181-191. http://dx.doi.org/10.1007/BF00705884

Zobel BJ, Van Buijtenen JP, 1989. Wood Variation: its causes and control. Springer-Verlag, Berlin, Heidelberg, New York, USA. http://dx.doi.org/10.1007/978-3-642-74069-5

DOI: 10.5424/fs/2014231-03297

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