INVESTIGATION ON TRACHIEDS CHARACTERISTICS OF PINUS TEADA

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JAHAN LATIBARI A.; GOLBABAEI FARDAD; AMINI M.R.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2004 | Volume:19 | Issue:1 Page(s): 25-47

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Information Journal Paper

Title

INVESTIGATION ON TRACHIEDS CHARACTERISTICS OF PINUS TEADA

Author(s)

JAHAN LATIBARI A. | GOLBABAEI FARDAD | AMINI M.R. | Issue Writer Certificate

Keywords

PINUS TEADAQ2

TRACHIED LENGTHQ4

DIAMETERQ4

LUMEN DIAMETERQ4

CELL WALL THICKNESSQ4

EARLY WOOD AND LATE WOODQ4

Abstract

PINUS TEADA, which was planted in Pelembera region, shows promising both in growth rate and adaptability. Even though the fiber geometry of P. teada wood in its native growth region is excellent, but for utilization of this wood in pulping, the knowledge of its technological characteristics especially fiber geometry is required.Two trees of this species were randomly selected from Pelembera forests plantation in Gilan and after felling were cut in smaller bolts and transferred to wood &paper research laboratory, research institute of forests and rangelands. Five cross-sections with the thickness of 15 cm were cut from each tree and the cross-sections were used for selection of samples. Fiber geometry measurement samples were prepared from every five annual rings and from each sample, springwood (early wood) and summer wood (late wood) sample were cut separately. Preparations of fiber geometry samples were according to procedure developed by Franklin (1954) and from each sample the dimension of 30 complete and unbroken trachieds was measured.Trachied length, DIAMETER, CELL WALL THICKNESS and lumen DIAMETER was measured for different elevation in tree and different growth rings in cross-section.Dimension of 3,00 trachieds were measured totally.Average TRACHIED LENGTH, DIAMETER, lumen DIAMETER and CELL WALL THICKNESS of early wood were measured at 3.65mm, 38.97 mm, 28.94 mm and 3.72 mm respectively. Related values for late wood is as follow: TRACHIED LENGTH 3.84mm; DIAMETER, 35.54 /lm; lumen DIAMETER, 22.96 mm; and CELL WALL THICKNESS, 6.29 mn. Average annual growths were measured at 5.66 mm and late wood percentage at 24.13. Felting, flexibility and runkel coefficients were calculated at 97.96, 73.48, and 26.74 respectively. The result of this study indicates that all measured properties increases with increasing the height of tree and from center (pith) toward outer regions (bark). However all the measured values decreased at highest as well as outer locations.Statistical analysis indicated that the difference in measured properties at different heights of trees from center to the bark is significantly different at 1% level.

Cites

INVESTIGATION THE PROPERTIES OF RADIATA PINE (PINUS RADIATA) WOOD KRAFT PULP AND PAPER

References

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APA: Copy

JAHAN LATIBARI, A., GOLBABAEI, FARDAD, & AMINI, M.R.. (2004). INVESTIGATION ON TRACHIEDS CHARACTERISTICS OF PINUS TEADA. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 19(1), 25-47. SID. https://sid.ir/paper/109531/en

Vancouver: Copy

JAHAN LATIBARI A., GOLBABAEI FARDAD, AMINI M.R.. INVESTIGATION ON TRACHIEDS CHARACTERISTICS OF PINUS TEADA. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2004;19(1):25-47. Available from: https://sid.ir/paper/109531/en

IEEE: Copy

A. JAHAN LATIBARI, FARDAD GOLBABAEI, and M.R. AMINI, “INVESTIGATION ON TRACHIEDS CHARACTERISTICS OF PINUS TEADA,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 19, no. 1, pp. 25–47, 2004, [Online]. Available: https://sid.ir/paper/109531/en

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