Lenticel develops through the activity of
Vascular cambium
Dermatogen
Phellogen
Intercalary meristem
What do hardwood and softwood stand for?
$A$ : Intercalary meristems are commonly located at the base of leaves, above the nodes or below the nodes.
$R$ : Vacuoles are large sized in the cells of intercalary meristem.
Growth rings are formed due to activity of
Given below are two statements : One is labelled as Assertion $A$ and the other is labelled as Reason $R$:
Assertion $A$ : Late wood has fewer xylary elements with narrow vessels.
Reason $R$ : Cambium is less active in winters.
In the light of the above statements, choose the correct answer from the options given below :
Which tissue gives rise to secondary growth?