Botanical Name: Tectona grandis L.
Common Name: Teak, Sagwan
Family : Verbenaceae
Plate 16.2 Tectona grandis L. tree
- Large deciduous tree up to 30 m high and 100 cm or more dbh
- Long straight cylindrical bole up to 2/3 of the height of tree.
- Deep tap root system
- Bark pale brown, grey, striate, fibrous, peeling off in thin strips
- Branch-lets are quadrangular and channelled
- Indigenous in peninsula of India, in North-Eastern drier part of Java and other islands of Indian Archipelago
- The Nilambur in Kerala, manmade teak forest are known to foresters throughout world.
- Natural habitat is between 10°N and 25°N on Indian subcontinent, in South-East Aisa especially in India, Burma, Thailand, Laos, Combodia, Vitenam and Indonesia.
- It does not occur naturally in Malaysia
- Teak naturally occurs only in monsoon climate
- Temperature - Maximum 48°C, Minimum 2°C
- Rainfall - 700mm to 2200 mm
- Altitude - 600m to 1200 msl.
- It grows on variety of geological formations notably trap, limestone, granite, gneiss, mica schist, sandstone, quartzite and clay
- Well drained, well ventilated soils with high oxygen content are best
- Generally prefer soil between pH 6.0-8.5H
Wet area- March
- Leaf-fall - Dry area- November to January
- Leaf renewal - May
- Flowering - June to September
- Fruiting - November to January
- Seed collection - January/February
- Seed viability - more than 1 year
- Seed weight - 125 to 176 per 100 gm.
- Germination - 60 to 80 per cent.
- Strong light demander
- Frost tender
- Drought and wind sensitive
- Fire resistant
- Not browsed
- Good coppice
Plate 16.3 Tectona grandis L. fruits
Last modified: Tuesday, 22 May 2012, 8:48 AM