Apitong - Dipterocarpus grandiflorus

Description and Uses

Dipterocarpus grandiflorus (Apitong) is a tropical tree from Malaysia & Indonesia. It is mainly grown for its fuel crops (long shelflife), but also

can be produced. The crop is harvested by total removing.

. Medical uses include;

The contains ( - ). After 40 years the tree can be totally removed as it reached its commercial and ecological goal. Dipterocarpus grandiflorus has a lifespan of 700 years.

---

Environmental limitations

The tree is 43 meters tall. It is fast growing and tolerates not less light than partial shade. Dipterocarpus grandiflorus has a deep root-system and forms symbiotic relations

(endo and ecto mycorrhiza). It is able to fix nitrogen with - bacteria. The tree`s flower-morphology is bi-sexual and is pollinated by insects.

Dipterocarpus grandiflorus thrives in an altitude of 0 to 600 meters above sea-level (tropical). The minimum temperature is 14°C and optimally between 24 - 28°C. The optimal rainfall is 2900 mm/year. Without irrigation the annual rainfall should be between 900 - 4000 mm (L/m²). The optimal soil-pH is between 5.0 - 6.0 in a soil texture of loam. To salt it is intolerant to wind and to fire .

---

Pests and Diseases

and

diseases.

---

Seed Propagation

Seeds are recalcitrant and can be stored for 1 months. There are approximative 315 seeds/kg. Unfortunately propagation instruction is missing.

---