The objective of this study was to perfect the callus culture method for propagating Kappaphycus striatus. Our research focuses on enhancing somatic embryo (SEs) induction from the callus and micropropagule regeneration in SEs. In order to enhance the induction rate of SEs, the 16-week-old callus was transplanted into a semi-solidified PES (0.4% agar) medium supplemented with 0.5–3.0 mg.L-1 3-indoleacetic acid (IAA) and 0.5–3.0 mg.L-1 kinetin (KIN), either alone or in combination. The results sh