Giant bamboos are the largest members of the grass family. In bamboo, the internodal regions of the stemare usually hollow and the vascular bundles in the cross section are scattered throughout the stem instead of in a cylindrical arrangement. Thedicotyledonous woody xylem is also absent. The absence of secondary growth wood causes the stems of monocots, including the palms and large bamboos, to be columnar rather than tapering.
Bamboos include some of the fastest-growing plants in the world,[4] due to a unique rhizome-dependent system. Certain species of bamboo can grow 91 cm (3 ft) within a 24-hour period, at a rate of almost 4 cm (1.5 in) an hour (a growth around 1 mm every 90 seconds, or one inch every 40 minutes).[5] Bamboos are of notable economic and cultural significance in South Asia, Southeast Asia and East Asia, being used for building materials, as a food source, and as a versatile raw product. Bamboo has a higher specificcompressive strength than wood, brick, or concrete and a specific tensile strength that rivals stee
No comments:
Post a Comment