Yohanna, A. et al. 2026. Picloram-Induced Embryogenic Callus Formation and Proliferation from Nucellar Embryo of Mandarin ‘Berastagi’ (Citrus reticulata Blanco). Journal of Tropical Crop Science. 13, 03 (Nov. 2026), 707–719. DOI:https://doi.org/10.29244/jtcs.13.03.707-719.