Write an experiment to illustrate the conduction of sugars by phloem.

Explanation

1) Experiments to illustrate the conduction of sugars by the phloem have been done by removing a ring of bark from a shoot to expose the wood.
2) Remove all tissues from the cambium outwards including the phloem.
3) After a few days, when the tissues above and below the ring were analyzed.
4) It was shown that food had accumulated above the ring but was not present below it.
5) If it is left for sometime, the stem increases in thickness immediately above the ring, but no growth occurred below it.
6) So, any damage to the phloem all around the stem will prevent food from passing down to the roots and the tree will eventually die.