Question

A plant hormone related with inhibition of senescence is

• A. Ethylene
• B. ABA
• C. Bromic acid
• D. GA

Answer 1

The correct option is D

GA

The correct option is D.

Explanation of correct option:

1. Plant senescence refers to ageing in plants.
2. The hormone which is responsible for the inhibition of senescence is GA.

Explanation of incorrect options:

Option A:

Ethylene is widely used for fruit ripening and it promotes or inhibits senescence depending on its concentration.

Option B:

Abscisic acid promotes leaf senescence.

Option C:

Bromic acid is used to make dyes and pharmaceuticals.

Final answer: Hence, GA is the plant hormone-related to the inhibition of senescence.