GAMARI WOOD

RS- 1000

1. Gamari or White teak is a fast growing deciduous tall tree with branches attaining a height of 15-35 m. Young shoots are hairy. Bark is whitish and smooth, beautiful. The trunk can be 3-4 m in diameter. Gamari wood roots are characterized physically, chemically and morphologically. The α-cellulose content in gamari roots and stem was 37.0 and 43.2% and lignin content was 30.0 and 24.8%, respectively. Kraft pulping of gamari roots and stem was also carried out by varying operational parameter.

2. Pulping of Gamari Roots :Gamari is planted for pulpwood in allocated forestland in north east of India. After harvesting of pulpwood roots are burnt in the land for re-cultivation. But the root is similar to wood. This root can be a supporting raw material in the pulp mill as mills are facing challenge to collect raw material. No study has been reported on the physical, chemical and morphological characteristics and its pulping. In this paper, Gamari wood roots are characterized physically, chemically and morphologically. The α-cellulose content in Gamari roots and stem was 37.0 and 43.2% and lignin content was 30.0 and 24.8%, respectively. Kraft pulping of Gamari roots and stem was also carried out by varying operational parameter. Gamari root was difficult to delignify. A higher active alkali charge was required to delignify. Pulp yield was 37.8% for gamari roots and 44.2% for rubber stem with kappa number 33.1 and 21.4, respectively, at the active alkali charge of 20%. Without affecting pulp yield and kappa number 25% root could be mixed with wood chips. Papermaking properties mixed cooked pulp were close to wood chips pulp.

3. Scientific name: Gmelinaarborea :-
(a) Origin: It originated from greater parts of India, Sri Lanka and Myanmar. Best growth in eastern sub-Himalayan tract, moist areas of Himalayan tract in Bengal and Assam and also in drier areas of central India.
(b) Climate: Gamar survives upto a maximum temperature of 38°C to 48°C and in a minimum temperature of 30°F to over 60°F and needs a rainfall range of 750 mm to 4500 mm.
(c) Soil: Gamar tree prefers moist fertile valleys and also grows on dry sandy or poor soils.
(d) Silvicultural characters: A light demander and doesn’t stand bed drainage, moderately frost hardy and has good power of recovering and doesn’t stand excessive drought. It coppices very well and root suckers not observed.
(e) Method of planting: Six month old seedlings are planted out with the ball of earth round the root portion of the seedlings and planting with root and shoot cutting has also been very successful. Weeding necessary in the first year only and stripping of leaves and branches in first cold weather seems helpful.
(f) Plant Protection: Squirrels pick up and eat seeds after sowing. In first two years browsing and girdling by deer is prevented by fencing.
(g) Uses: Wood is yellowish or grayish white, even-grained, soft-light and strong, seasons well without warping and cracking and is very useful in paneling, carriages, furniture, boxes and carpentry of all kinds. It has been pronounced very good even for match manufacture and also for plywood.

 

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