Comparison of Holocellulose, Alphacellulose and Lignin contents of trunk and branch wood of some conifers of Pakistan
A. Mahmood and Tariq Mahmood
ABSTRACT
Trunk and branch wood of seven conifers viz. Abies
pindrow, Cedrus deodara, Juniperus polycarpos, Pinus
halepensis, P. roxburghii-amercana and P. wallichiana
were compared for holocellulose, alphacellulose and
lignin content in branch wood of C. deodara, J.
polycarpos, P. halepensis and P. roxburghii-americana
was comparable with the corresponding values for their
trunk wood. The branch wood of A.pindrow, P.roxburghhii
and P. wallichiana, contained slightly lower
holocellulose content as compared to trunk wood. Amount
of alphacllulose in branch and trunk wood was comparable
in C. deodara, J. polycarpos, P. roxburghii-americana
and P. wallichiana while in trunk wood of A.pindrow,
P.halepensis and P. roxburghii amount of alphacellose
was slightly higher than branch wood. Lignin content of
trunk and branch wood was comparable in A.
pindrow,C.deodara, and P. roxburghii-americana whereas
in the species lignin content of trunk and branch wood
showed little variation.
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