Question

If a plant is girdled, which part dies first?

• A. Leaves
• B. Stem
• C. Roots
• D. None of these

Answer 1

The correct option is C

Roots

The correct option is C.

Explanation of the correct option:

1. Girdling is the removal of the phloem.
2. Phloem is responsible for the downward movement of food.
3. Thus the roots will not be able to get food and will die.

Explanation of the incorrect options:

Option (A)

In a girdled plant, the leaves may remain green for some time until the water is supplied and then die eventually.

Option (B)

If the xylem of the stem is girdled, the transport of water will not take place. The plant will not be able to prepare food and will die.

Final answer: If a plant is girdled root dies first.