Chrysanthemum is a leading commercial crop grown for cut and loose flowers and also as a pot plant. Plant growth regulators are organic substances with important functions in regulating growth, and acting as inhibitors or stimulants, depending on its concentration and other intrinsic characteristics of the plant. Among the groups with the possibility of hormone use is exogenous gibberellins. Gibberellic acid (GA3) has been used to increase the length or height of plants, increase the number of flowers and induce flowering. It is a native of China. This book is helpful for researchers and...