Genetic engineering has been considered a promising produc- tion alternative since it shortens the breeding period. For this approach to gain wide acceptance an efficient micro-propagation and regeneration procedure to produce large numbers of rooted plants from unique plants is a prerequisite (Liu and Yang, 2011). Genetic transformation opens the opportunity for genetic manip- ulation of plants at cellular level and provides the means for modifying single horticultural traits without significantly altering other aspects of the phenotype (Singh et al., 2004; Krishna and Singh, 2007). The main target of gene transfer techniques is to produce improved varieties through the incorporation of horticul- tural important genes into existing cultivars (Singh et al., 2004).