Girdling a tree involves cutting a deep groove all the way around a tree trunk. It would have the effect of
A) triggering additional auxin production and increasing leaf growth.
B) increasing the input of carbon dioxide and increasing photosynthesis.
C) interrupting the flow of minerals and stunting the growth of the tree.
D) interrupting the passage of phloem sap and killing the tree.
E) interrupting the passage of water and killing the tree.

Question

Quizplus · Accepted Answer

Girdling interrupts the passage of phloem sap, which is responsible for transporting sugars and other nutrients throughout the tree. This causes the tree to eventually die.

Girdling a Tree Involves Cutting a Deep Groove All the Way