Question

Seedless fruits can be induced by

• A. ABA and IAA
• B. ABA and Zeatin
• C. IAA and $G{A}_3$
• D. Ethylene and ABA

Answer 1

The correct option is C IAA and $G{A}_3$

Auxin is the hormone in plants which induces parthenocarpy. It is the production of fruit without fertilization of ovules. Thus, forming seedless fruits. Gibberellin is a phytohormone which accounts for the production of seedless fruits in grapes. Seedless fruits can be induced by treating unfertilized plant flowers with auxins (Indole acetic acid). These hormones reach the threshold concentration prior to pollination and thus resulting in seedless fruits.

So, the correct answer is 'IAA and $G{A}_3$'