(1α,2β,4aα,4bβ,10β)-2,4a,7-Trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-dicarboxylic Acid 1,4a-Lactone Acetoxymethyl Ester  – or GA3 for short. Gibberellic acid belongs to a group of organic chemicals known as PGRs (Plant Growth Regulators) and they are used in horticulture to modify the growth of plants. These chemicals are also known as ‘plant hormones’ because they are analogous to Continue Reading