Dipterocarpus grandiflorus - Apitong

Description and Uses

Dipterocarpus grandiflorus (Apitong) is a tropical tree from Malaysia & Indonesia . It is mainly grown for its fuel crops , which have a long shelf life. The crop is harvested by total removing. It starts flowering after 0 - 0 years. The yield will be {missing data}, but in its top season there will be a yield of {missing data}. Other crop types include; timber, fuel, fertilization, gum resin, . The {missing data} is used as {missing data} . The {missing data} is used as " {missing data} " with {missing data} ({missing data} - {missing data}) as its significant phytochemical. There is {missing data} extracted by {missing data} from the tree's {missing data} yielding {missing data} - {missing data} oil. The tree's wood is called {missing data} and has a density of 650 - 945 kg/m³. Regarding firewood production the tree's growing speed is fast, it's energetic value is 0 ckal/kg and the wood's drying speed is {missing data}. 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 with a crown of 12 meters wide. The tree prefers a planting distance of 300 cm and a row distance of 300 cm. It is very fast growing and partial shade tolerant. Dipterocarpus grandiflorus has a deep root-system and it has symbiotic associations with the fungi (endo and ecto mycorrhiza). It is able to fix nitrogen moderately with "any bacteria. The name(s) or string of bacteria include(s) "not applicable ". The tree's flower-morphology is bi-sexual and is pollinated by insects. Dipterocarpus grandiflorus is {missing data} and {missing data} and has no thorns.

Dipterocarpus grandiflorus thrives in an altitude of 0 to 600 meters above sea-level (tropical). The minimum temperature is 14°C; optimally between 24 - 28°C. The optimal rainfall is 2900 mm/year. Without irrigation the annual rainfall should be between 900 - 4000mm (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 {missing data} and to fire {missing data}.

Pests and Diseases

Dipterocarpus grandiflorus is susceptible to the following pests: Alcidodes crassus , Alcidodes dipterocarpi , Nanophyes shoreae , Cydia pulverula . And it's susceptible to the following diseases: (missing data) , , .

Seed Propagation

Seeds are recalcitrant and can be stored for 18 months. There are approximative 315 seeds/kg. The seeds can be propagated as followed: {missing data}