A hormone that helps in growing seedless grapes.

Explanation

Gibberellin is a plant hormone regulating key processes in plants; many of them are of significant agricultural importance, such as seed germination, root and shoot elongation, and flowering. Perhaps the most widespread use of gibberellin has been in grape production. The application of gibberellin is a regular practice for the culture of the 'Thompson Seedless' ('Sultanina') cultivar of grapes to increase fruit size and is also used to induce seedlessness in certain other grape varieties.