... cm and number leaves/plant 9,4 after one week observed Keywords: Saintpaulia, rapid propagation, nursery, coconut fiber, plantlets, substrates. I. ĐẶT VẤN ĐỀ1 Ngày nay, bên cạnh các loại hoa ... Violet Châu Phi (Saintpaulia) by tissue culture Study on rapid propagation protocol of Violet Chau Phi (Saintpaulia) by tissue culture showed that initial material is tender leaves. The steriliration ... The optimal culture medium for regeneration and shoot multiplication from callus is MS medium + 7,0 g/l agar + 20 g/l saccaroza + 2 g/l charcoal supplemented with 0,3 mg/l BAP. The best medium...