$A$. Heart wood is durable, dark and central in position.
$B$. Tyloses are balloon like structures of xylem parenchyma in vessel lumen.
$C$. Late wood is formed during spring season.
All are correct
Only $A$ is correct
Only $B$ is incorrect
Only $C$ is incorrect
In an annual ring, the light coloured part is known as
Which of the following is true for the dicot roots?