Grafting is attempted in those plants which show:

Commercial cork is obtained from .........

Read the different components from $(i)$ to $(iv)$ in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem.
$(i)$ Secondary cortex $(ii)$ Wood $(iii)$ Secondary phloem $(iv)$ Phellem
The correct order is:

The vascular cambium typically produces .........

Write a note on spring wood and autumn wood.

Define the following terms:
$(i)$ Conjoint vascular bundles
$(ii)$ Secondary growth