What is correct for heartwood ?
Carries water
Provides mechanical strength
Have live components
None of them
Write a note on spring wood and autumn wood.
Heart wood and sapwood of dicot plants are respectively, called as
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 ?
The function of cork cambium $(phellogen)$ is to produce
Cambium activity is