Face positions yield different quantities of resin from Pinus roxburghii
Face positions yield different quantities of resin from Pinus roxburghii
M.I. Sheikh
ABSTRACT
Using 40% H2SO4 in conjunction with American bark hack method with an 18cm wide streak and 1.90cm cutting edge and working single and both the faces of chir pine tree it has been indicated over a period of 4year continuous tapping that yield from single face of one tree (East and West) is significantly more when the tree is worked simultaneously on two faces (East plus West). It has also been found that western faces of the trees yield more gum as compared to eastern faces.
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June 1984
Vol. 34, Iss. 2
