Plant regeneration and histological study of the somatic embryogenesis of sugarcane (Saccharum spp.) cultivars RB855156 and RB72454 - doi: 10.4025/actasciagron.v36i1.16342. Acta Sci. Agron. 2014;36(1):63-72. doi:10.4025/actasciagron.v36i1.16342