interfascicular cambium develops from the cells of :
Xylem parenchyma
Endodermis
Pericycle
Medullary rays
A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed ? What is the significance of these rings ?
Lenticles are formed due to rupture in epidermis because of pressure exerted by
What do hardwood and softwood stand for?
The function of cork cambium $(phellogen)$ is to produce