May see through the above experiment, seedling's root is depends uponthe root point the growth to extend to under. The root point thereforecan grow, is by the root point growing point (meristematic tissue) thecell can unceasingly split produces the new cell, as well as the newcell unceasingly elongates result. The elongation cell afterwardsstarts to split up, forms the root hair, the drive pipe and so on thedifferent structure, thereupon plant's root then grew maturely.