STUDY OF TRACHEID LENGTH AND PHYSICAL PROPERTIES VARIATIONS OF PLANTATION CYPRESS (CUPRESSUS SEMPERVIRENS L.) IN RADIAL AND LONGITUDINAL DIRECTIONS OF TREE

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HOSSEINI HASHEMI S.KH.; PARSAPAZHOUH D.; DOUST HOSSEINI K.; FAEZIPOUR M.

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Journal: Year:2006 | Volume:12 | Issue:3 Page(s): 659-675

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Title

STUDY OF TRACHEID LENGTH AND PHYSICAL PROPERTIES VARIATIONS OF PLANTATION CYPRESS (CUPRESSUS SEMPERVIRENS L.) IN RADIAL AND LONGITUDINAL DIRECTIONS OF TREE

Author(s)

HOSSEINI HASHEMI S.KH. | PARSAPAZHOUH D. | DOUST HOSSEINI K. | FAEZIPOUR M. | Issue Writer Certificate

Keywords

CYPRESSQ4

TRACHEID LENGTHQ3

DRY SPECIFIC GRAVITYQ3

CRITICAL SPECIFIC GRAVITYQ3

MOISTURE CONTENTQ3

TOTAL VOLUMETRIC SHRINKAGEQ3

RADIAL VARITIONQ3

LONGITUDINAL VARIATIONQ3

Abstract

In this study, the TRACHEID LENGTH and physical properties of wood in plantation CYPRESS (Cupressus sempervirens L. var. horizontalies (Mill) Gord) were analysed in radial and longitudinal directions of the tree stems. Three plantation CYPRESSes were cut down in ramsar’s forest (North of Iran ) and from each tree, three disks were selected at intervals of 20 cm, 130 cm and mid-length of the tree trunk. The testing samples were prepared from these disks for measuring the main properties such as, TRACHEID LENGTH, DRY SPECIFIC GRAVITY, CRITICAL SPECIFIC GRAVITY, maximum MOISTURE CONTENT and TOTAL VOLUMETRIC SHRINKAGE based on the ASTM standard, and the data in two radial and longitudinal directions in the trunk were analyse statistically. The result of this study shows that TRACHEID LENGTH of plantation CYPRESS wood in are increased from pith to bark and in axial direction, were decreased from bottom to top. The variation patterns of the DRY SPECIFIC GRAVITY and CRITICAL SPECIFIC GRAVITY in radial direction, were increased from pith to bark and axial direction were decreased from bottom to top. Maximum MOISTURE CONTENT in radial direction, were decreased from pith to bark and in axial direction, were increased from bottom to top. The variation curve of the TOTAL VOLUMETRIC SHRINKAGE in radial direction, were increased from pith to bark and in axial direction, were decreased from bottom to top.

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References

بررسی تغییرات خواص فیزیکی و طول الیاف چوب گونه ممرز در محورهای طولی و شعاعی درخت

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APA: Copy

HOSSEINI HASHEMI, S.KH., PARSAPAZHOUH, D., DOUST HOSSEINI, K., & FAEZIPOUR, M.. (2006). STUDY OF TRACHEID LENGTH AND PHYSICAL PROPERTIES VARIATIONS OF PLANTATION CYPRESS (CUPRESSUS SEMPERVIRENS L.) IN RADIAL AND LONGITUDINAL DIRECTIONS OF TREE. JOURNAL OF AGRICULTURAL SCIENCES, 12(3), 659-675. SID. https://sid.ir/paper/7579/en

Vancouver: Copy

HOSSEINI HASHEMI S.KH., PARSAPAZHOUH D., DOUST HOSSEINI K., FAEZIPOUR M.. STUDY OF TRACHEID LENGTH AND PHYSICAL PROPERTIES VARIATIONS OF PLANTATION CYPRESS (CUPRESSUS SEMPERVIRENS L.) IN RADIAL AND LONGITUDINAL DIRECTIONS OF TREE. JOURNAL OF AGRICULTURAL SCIENCES[Internet]. 2006;12(3):659-675. Available from: https://sid.ir/paper/7579/en

IEEE: Copy

S.KH. HOSSEINI HASHEMI, D. PARSAPAZHOUH, K. DOUST HOSSEINI, and M. FAEZIPOUR, “STUDY OF TRACHEID LENGTH AND PHYSICAL PROPERTIES VARIATIONS OF PLANTATION CYPRESS (CUPRESSUS SEMPERVIRENS L.) IN RADIAL AND LONGITUDINAL DIRECTIONS OF TREE,” JOURNAL OF AGRICULTURAL SCIENCES, vol. 12, no. 3, pp. 659–675, 2006, [Online]. Available: https://sid.ir/paper/7579/en

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