Question

Various forms of gibberellins are abundant during which stage of fruit development?

• A. Stage I
• B. Stage II
• C. Stage I \& Stage II
• D. Through out seed development

Hint:

Plant hormones regulate fruit development:
Stage I (Cell division): Auxins, Cytokinins are key.
Stage II (Cell enlargement/growth): Gibberellins are very important for promoting cell expansion and overall fruit size.
Stage III (Ripening): Ethylene, Abscisic acid become more dominant. Gibberellins are particularly abundant during active fruit growth and cell expansion phases.

Answer 1

The Correct Option is B

Step 1: Stage I (cell division) is driven mainly by auxins and cytokinins.
Step 2: Stage III (ripening) is driven mainly by ethylene and abscisic acid.
Step 3: Gibberellins specifically promote cell elongation, the hallmark of the fruit-sizing phase.
Step 4: The correct answer is Stage II.