Nguyen Hong Lam
Centre for Special Forest Products Research
I. Introduction
Agar-wood crassnaPierre has the Vietnamese names: Tram Huong, Tra Huong, or Do bau. A. crassna is a large timber, evergreen species with thin crown and straight bole, average height of 15 – 18m, diameter breast high 35 – 40cm in average. A. crassna is usually distributed in primary or secondary forest in Vietnam Laos, Cambodia and Southern China. In our country A. crassna is rather widely distributed from North Vietnam provinces: Quang Ninh, Bac Giang, Hoa Binh, to as far as Kien Giang but it is most concentrated in coastal Central Vietnam and the Central Highlands. The most important value of A.crassna is for agar-wood exploitation. Agar-wood is a commodity of high economic value. In the world, agar-wood is used for distillation of agar-wood essential oil an important scent fixative in industry to manufacture high-class cosmetics.
Although agar-wood has very high economic value, upto now scientific researches on formation of agar-wood are still limited. By order of the Ministry of Forestry, now the Ministry of Agriculture and Rural development, in the 1991- 2000 period, the Centre for Special Forest Products Research (FSIV) has implemented a research subject: Research on technique for creating agar-wood in the stem of Agar-wood crassna.
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