Response of Embryogenic Callus of Theobroma cacao L. to Gibberellic Acid and Inhibitors of Gibberellic Acid Synthesis

Abstract

Gibberellic acid at 0.05 to 10 mg·l⁻¹ stimulated asexual embryogenesis from embryogeniccompetent callus of clone BC 5 but not BC 36 of Theobroma cacao. AMO 1618 stimulated embryogenesis at 0.05 to 0.1 mg·l⁻¹ but depressed embryogenesis above 0.1 mg·l⁻¹ for clone BC 5. A similar but smaller effect was observed for BC 36. Daminozide and CCC depressed embryogenesis with both clones.