Question

Which phytohormone is useful for leaf expansion in leafy vegetables?

• A. Cytokinins
• B. Gibberellins
• C. Ethylene
• D. Auxins

Hint:

Gibberellins are commonly used to increase size of leaves and fruits.

Answer 1

The Correct Option is B

Step 1: Understanding leaf expansion.
Leaf expansion involves both cell elongation and cell enlargement, leading to an increase in leaf size and surface area.
Step 2: Role of gibberellins.
Gibberellins promote cell elongation and expansion, especially in leaves and stems, and are therefore used to enhance leaf growth in leafy vegetables.
Step 3: Conclusion.
Hence, the phytohormone useful for leaf expansion is Gibberellins.