In MS medium, high concentrations of
nitrogen usually inhibited flowering and promoted
vegetative growth whereas the use of half-strength MS
mineral medium or a reduced nitrogen content enhanced
in vitro flowering in Cymbidium (Kostenyuk et al. 1999),
Doritis (Duan and Yazawa 1994), Phalaenopsis (Duan
and Yazawa 1995), Orichophragmus violaceus (Luo
et al. 2000), tomato (Dielen et al. 2001), and rose (Vu
et al. 2006). In contrast, no difference in the rate of
in vitro flowering Bambusa edulis plantlets was observed
as a result of various concentrations of sucrose and
nitrogen in the media (Lin et al. 2003).