Gibberellins are a large family of plant growth regulators comprising more than 130 naturally occurring compounds. They regulate key physiological processes, including seed germination, vegetative growth, flowering, and fruit set. Their discovery originated from research into rice bakanae disease. Today, GA₃ and GA₄+₇ are among the most widely used gibberellins in agriculture. This article compares their characteristics and field applications. 1. Origins: How Rice Bakanae Dis