COMPARATIVE STUDY ON THE CONSTITUTENTS OF SOUND AND DISEASE AFFECTED SISSOO (DALBERGIA SISSOO ROXB) WOOD
DOI:
https://doi.org/10.53808/KUS.1999.1.2.139-142-seKeywords:
Dalbergia sissoo; Wood constituents; Sound wood; Massive mortality; Wood technologyAbstract
A comparative study has been conducted on the constituents of sissoo (Dalbergia sissoo) wood to find out the effect of causal agent of massive mortality. Ten ideal pieces of affected and four pieces of sound wood were collected from different plantations. The sawdust of both sound and affected wood was freed from extractives with alcohol benzene mixture in a soxhlet apparatus. Cellulose and hemicellulose were determined by treatment of 10% sodium hydroxide, acetic acid and ethyl alcohol, and lignin by 72% sulfuric acid and phosphoric acid mixture. Distinct variations were found among the constituents of sound and affected sissoo wood. Hemicellulose and lignin content of affected wood were found 5.5 and 7.5% lower than those of sound wood respectively. The causal agent of massive mortality brought about these differences on account of the degradation and decomposition of lignin and hemicellulose.
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