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Wednesday, October 27, 2010

Pokok Mambu ( Azadirachta indica )




 Azadirachta indica (Mambu) is a tree in the mahogany family Meliaceae. They have two species in the genus Azadirachta, growing in tropical and semi-tropical regions. Mambu is a fast-growing tree that can reach a height of 15–20 m (about 50–65 feet), rarely to 35–40 m (115–131 feet). It is evergreen, but in severe drought it may shed most or nearly all of its leaves. The branches are wide spread. The fairly dense crown is roundish or oval and may reach the diameter of 15–20 m in old, free-standing specimens.

Habitat

The Mambu tree is noted for its drought resistance. Normally it thrives in areas with sub-arid to sub-humid conditions, with an annual rainfall between 400 and 1200 mm. It can grow in regions with an annual rainfall below 400 mm, but in such cases it depends largely on ground water levels. Mambu can grow in many different types of soil, but it thrives best on well drained deep and sandy soils. It is a typical tropical to subtropical tree and exists at annual mean temperatures between 21-32 °C. It can tolerate high to very high temperatures and does not tolerate temperature below 4 °C . Mambu is a life-giving tree, especially for the dry coastal, southern districts of India. It is one of the very few shade-giving trees that thrive in the drought-prone areas. The trees are not at all delicate about the water quality and thrive on the merest trickle of water, whatever the quality. In India it is very common to see Mambu trees used for shade lining the streets or in most people's back yards. In very dry areas the trees are planted in large tracts of land.