Holland Industry 92% Gibberellic Acid (GA3) 10G Growth Regulator Seed Dormancy Regulate explosive plant growth, trigger dormancy of seeds and early harvest of fruits and flowers. Holland Industry's Gibberellic Acid or GA3 is 92% pure (which is one of the highest available in the market). Gibberellic Acid is commonly used to break dormancy of a plant to produce seeds. Gibberellic Acid can also be used to improve plant growth and initiate faster development and ripening of fruits and flowers.