indirectly through reduction of volume of soil
that can be dawn upon by plant for water
and nutrients (10). Shallow soils, which have
gravely layer less than 100 cm restrict
development of rubber tap root affecting
anchorage of trees. However, the tree
planting in that condition can adapt to
survival by bending taproot sideways instead
of growing vertically in to the soil and
preponderance of extensive lateral root
system that compensates for the tap root