“…The most important factors include: medium pH (Nadgauda et al 1997), the content of sucrose (Lin et al 2003, Aneesh et al 2007 or agar in the medium (Kachonpadungkitti et al 2001), light intensity and even the size of explants (Taylor et al 2005). However, the most important of these is the content of plant growth regulators added to media in vitro (Levy andDean 1998, Taylor andvan Staden 2006). However, the application of phytohormones is not easy, as their effects depend on their concentration, in vitro conditions, and plant species.…”