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Uniyal, D. N.
- Supplementing Resin Production by Retapping Healed up Channels
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Indian Forester, Vol 122, No 8 (1996), Pagination: 746-750Abstract
The results of experiments in the retapping by Rill method of the healed up channels in Chir pine already tapped by Cup and lip method, carried out at New Forest, Dehra Dun have revealed that the resin yield was 4.45 kg/blaze which is viabJe from economic point of view. Therefore, the resin production may be supplemented by retapping healed up channels of abandoned pine trees if such trees are available in pine growing states.- Correlation between Diameter and Resin Yield by Rill Method of Tapping
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Indian Forester, Vol 118, No 7 (1992), Pagination: 456-459Abstract
Resin yield increases as the diameter increases upto 45 cm and then it decreases. Based on the model, optimum diameter of trees where yield will be maximum is observed to be 45 cm. This model will be used for forecasting the resin yield from the trees having diameter between 35-55 cm.- Boosting Resin Production with 20% (Volumetric) Acid Mixture Stimulant from Chir Pine (Pinus roxburghii Sargent)
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Indian Forester, Vol 117, No 1 (1991), Pagination: 37-43Abstract
In the personal study a method od preparing 20% acid mixture on volume/volume has been proposed to achive higher resin yeild from pines. In accordance with the proposed method it has been compared to prevalent one. i.e. method based on weight/weight and it has been found that proposed menthod consistently superior method based on weight/weight in all the months under study as well as overall months together.- Comparative Studies on the Healing Rant of Blazes Tapped by 'Cup Lip' Method (Channels) and 'Rill method' (Rills) in Pinus roxrurghii
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