Gaharu is derived from tree immune response from disease and fungal infections. The injured tree causes it to be exposed to microbial infections. Trees that are infected but grimaceous cause a disease formed on the tree thus resulting in the formation of gaharu from tree nutrients. The resulting resin of the process contains essence or scent. That resin is what we know as a gaharu. Gaharu commodities are now widely known worldwide with various calls, among Chinese society, it is called Chen Xiang, Jin-Ko in Japan, and Oud or Oode among Arabs. The agarwood included in the genus ‘Aquilaria’ is one of the most prestigious herbs in Malaysia that has high demand from abroad. Overall, there are eight types of gaharu trees in the world but in Malaysia there are only four species: Karas, Candan Gajah, Candan Gunung and Cendana.
In accordance with its statu s as a forest tree, this crop does not require extreme care and is very easy to cultivate based on the Four T principles of Plants, Living, Touting and Harvesting. The tree only requires 45 to 75 percent lighting per day and can adapt to various types of soil. The best seedlings for planting are from four months to one year as it is easy to transport and the formation of growing roots to grip the soil, preventing it from falling easily. The planting also does not require open fields. It is more suitable to be planted in native or native for a more perfect enlargement. For intensive cultivation, 0.4 hectares of land can accommodate about 450 to 1, 000 trees at a time