requires transfer to media containing IAA or NAA or lacking 2,4-D entirely. The auxin-to-cytokinin ratio largely determines which organs develop.

Gibberellic acid (GA3) contributes to cell elongation and meristemoid formation, while unconventional compounds like tri-iodobenzoic acid (TIBA), abscisic acid (ABA), kanamycin, and auxin inhibitors have proven effective