Question

Can you please explain with a diagram.. what does growth in radial direction which increases girth of roots and stem looks like?
(what is increase of girth of stem in radial direction?)​

Answer 1

Answer:

Lateral meristems are the meristems which are present along the lateral sides of stem and roots. They divide only in radial direction. Intrastelar or vascular cambium ring formed by intra-fascicular (also called fascicular) and inter-fascicular cambium; and cork cambium (phellogen) are examples of this type of meristem. These meristems are responsible for increase in girth of stem and roots.