2. Evaluation on Utilization Potential of Melaleuca cajuputi Powell By Somchai Benjachaya Tawat Jurayut Phornphimon Amornchot Laksamee Suthiwilairatana Charat Chuayna Bounsong Sompoh Wichit Sonthivanit Royal Forest Department

3. Material and Method Surveying of local utilization Air seasoning Basic characteristics Lumbering Wood working Plywood manufacturing Charcoal production

4. Results and Discussion Data surveying : Sampling of test logs Defect of lumber : Density, Specific gravity Air seasoning : Lumbering Wood working : Wood carving Plywood manufecturing : Charcoal production

5. General Data Local people utilization by size and age of M. cajuputi Wood Preservative by local people Bark of M. cajuputi usage Leaves of M. cajuputi usage Problem of M. cajuputi

6. Small, dbh 3-5 ins, for air seasoning and charcoal Medium, dbh 6-12 ins, for basic characteristics, lumbering, and wood carving Large, dbh > 16 ins, for plywood manufecturing Sampling of test logs

7. Studied M. cajuputi was less fungi, insect, and defects than other species All of knots were sound knot Defects of Lumber

8. M. cajuputi density was 580.47- 682.59 kg/m 3 at 14.87- 15.06 % MC The average specific gravity was 0.59 Density, Specific gravity

9. Air seasoning Weight of M. cajuputi decrease 18 % after 8 days Surface of cross and longitudinal of log splitted continuously.

10. Lumbering By chain saw altogether circular saw with rotor of a plow, it was 36.25 % yield. The estimated price is 6,000-9,000 Baht/m 3

11. Wood working M. cajuputi was easy for naling, screwing, sawing, cutting, sanding, drilling, lathing, and finishing

12. Wood carving M. cajuputi was toughness and spiral grain M. cajuputi was worse than Teakwood but better than Rain tree for carving

13. M. cajuputi was difficult to boil or transfer heat. M. cajuputi has spiral grain, and unsound knot. M. cajuputi give low quality and price for plywood. Plywood manufecturing

14. Charcoal production Local brick beehive kiln, yielded 29.09 %, kilning time 5.2 days Standard RFD brick beehive kiln, yielded 30.76 %, kilning time 2.6 days