Gibberellin is a plant hormone that plays a crucial role in regulating growth and development. It promotes stem elongation, seed germination, and flowering in various plants. Gibberellins are produced in young tissues, such as leaves and seeds, and help plants adapt to their environment by influencing growth patterns. This hormone was first discovered in the 1930s when researchers found that a fungus called Gibberella fujikuroi caused excessive growth in rice plants. Since then, gibberellins have been studied extensively for their effects on agriculture, including improving crop yields and enhancing fruit development.