Which of the following is done during ringing experiment

Options

A. Bark is removed
B. Pith is removed
C. Xylem is removed
D. All of these

Answer

D

Explanation

The experiment in which the continuity of vascular tissue is distributed by their removal is known as ringing or girdling experiment. It usually employed for the removal of all the tissues outer to vascular cambium (bark, cortex, and phloem) to the woody stem