A.G. Devi
Prasad
(Corresponding
author)
|
Department of Studies in Environmental Science, University of Mysore,?? Manasagangotri,
Mysore - 570 006, India
e-mail:
envimys2009@yahoo.com
|
Nageeb, A.Al-Sagheer?
|
Department
of Studies in Environmental Science, University of Mysore,?? Manasagangotri,
Mysore - 570 006, India
|
Publication Data
Paper received:
29
September 2010
Revised
received:
14
October 2010
Re-revised
received:
03
March 2011
Accepted:
21 April 2011
|
Abstract
Wood elements and anatomical
ratio of Dipterocarpus indicus were studied to evaluate variation among
populations and to recommend for end selection. The variation of wood element
[fibre length (FL), fibre
diameter (FD), lumen diameter (LD), cell wall thickness (CWT), double wall
thickness (DWT), and lumen volume (LV)] and anatomical ratio [fibre lumen area (FLA), slenderness ratio (SR) and runkel ratio (RR)] were investigated in a girth class of
100 - 120 cm among eight populations of Dipterocarpus
indicus in Western Ghats,
India. The study revealed a significant variations in FL (0.2426), FD
(4.7019), LD (3.1689), CWT (2.7104), DWT and (5.4298) among populations. The
variations in anatomical ratios were significant among populations except in
case of LV.
The causes of variations among populations in their wood traits were
attributed to the site factors. The interaction between genetic makeup of
wood traits combined with effects of edaphic, local
and regional climatic conditions reflect the amount of variation among
populations. The highest coefficient of variation (CV %) for FL, FD, CWT and
DWT was recorded in population of Gundya whereas
low coefficient of variation were recorded in the population of Makuta (FL), Devimane (FD, CWT
and DWT), and Sampaje (LD). The wood of Dipterocarpus indicus
was found undesirable for pulp wood but can be utilized for plywood timbers.
?
Key
words
Anatomical
ratio, Dipterocarpus indicus,
Fibre properties, Locality factors, Population
variation
|
Copyright ? 2012 Triveni Enterprises. All rights reserved. No part
of the Journal can be reproduced in any form without prior
permission. Responsibility regarding the authenticity of the data, and
the acceptability of the conclusions enforced or derived, rest completely
with the author(s).
|