Variation in wood fibre traits among eight populations of Dipterocarpus indicus in Western Ghats, India.
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Date
2012-03
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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.
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Keywords
Anatomical ratio, Dipterocarpus indicus, Fibre properties, Locality factors, Population variation
Citation
Prasad A G Devi, A Alsagheer Nageeb. Variation in wood fibre traits among eight populations of Dipterocarpus indicus in Western Ghats, India. Journal of Environmental Biology. 2012 Mar; 33(2): 215-221.