Dendrobium Sw. (Orchidaceae) is the most heavily traded orchid genus according to the Convention on International Trade in Endangered Species of wild Fauna and Flora (CITES) statistics. The genus accounts for 67% of the total orchid exports from Thailand, making it the most exported orchid genus of the country. In addition to their ornamental value, many Dendrobium species have been used in traditional medicines and/or were reported to contain phytochemicals that have pharmaceutical activities ( Hossain, 2011 and Kong et al., 2003). The uses of Dendrobium orchids have made them highly demanded. Unfortunately, a large number of Dendrobium plants in trade are wild-collected. Methods that can improve propagation of Dendrobium orchids for both commercial and conservation purposes are needed.