تحقیقات علوم چوب و کاغذ ایران (Jul 2002)

INVESTIGATION ON TREND OF FIBER VARIATION OF PINUS ELDARICA

  • masoudreza habibi,
  • Abdolrahman Hosseinzadeh,
  • Ahmad Jahan latibari,
  • Hossein Familian,
  • Hossein Hosseinkhani

DOI
https://doi.org/10.22092/ijwpr.2002.117518
Journal volume & issue
Vol. 7, no. 16- شماره 293
pp. 73 – 93

Abstract

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In this study, annual growth, bark content, fiher dimensions of pine wood (P. eldarica) were measured. Annual ring thickness and bark content 4.95 mm, 12.15% are determined respectively. Fiber length, fiber diameter, lumen cell diameter, cell wall thickness were determined 2.26 mm, 39.63m 29.06 m and 5.28 m respectively. Also felting coefficient 58.59, tear coefficient 36.24% and flexibility coefficient 18.12%were measured. Trend of variations of fibers dimensions indicated that fibers longth increased with increasing tree height from butt to crown. Also this property increased from pith to tenth annuad ring then decreased toward of bark. Cell wall thickness decreased from butt to 2 m. height and then increased. Also cell wall thickness decreased from pith toward bark.

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