วันพฤหัสบดีที่ 30 ตุลาคม พ.ศ. 2551

Cacao


Cacao




Cacao (Theobroma cacao) (Mayan: kakaw, Nahuatl: Cacahuatl), or the cocoa plant, is a small (4–8 m or 15–26 ft tall) evergreen tree in the family Sterculiaceae (alternatively Malvaceae), native to the deep tropical region of the Americas. There are two prominent competing hypotheses about the origins of the original wild Theobroma cacao tree. One is that wild examples were originally distributed from southeastern Mexico to the Amazon basin, with domestication taking place both in the Lacandon area of Mexico and in lowland South America. But recent studies of Theobroma cacao genetics seem to show that the plant originated in the Amazon and was distributed by humans throughout Central America and Mesoamerica. Its seeds are used to make cocoa and chocolate.
The tree is today found growing wild in the low foothills of the
Andes at elevations of around 200–400 m (650-1300 ft) in the Amazon and Orinoco river basins. It requires a humid climate with regular rainfall and good soil. It is an understory tree, growing best with some overhead shade. The leaves are alternate, entire, unlobed, 10–40 cm (4-16 in) long and 5–20 cm (2-8 in) broad.

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