Definitions / Explanation :
$(i)$ Early wood
$(ii)$ Late wood
$(i)$ In the spring season, cambium is very active and produces a large number of xylary elements. This wood is known as spring wood or early wood.
$(ii)$ In winter, cambium is less active and forms fewer xylary elements. It is called late wood or autumn wood.
The sclerenchyma of the hypodermis in the Pinus needle helps in
Secondary xylem and phloem in dicot stem are produced by
During secondary growth of plants, stem phellogen cuts of cells on both sides. The outer cells gets differentiated into ...$A$... and the inner cells gets differentiated into ...$B$... cortex
Choose the correct combination of $A$ and $B$ with reference to above statement
In the given diagram of lenticel, label $A, B, C$ in the given option