trans-Zeatin-O-glucoside Riboside can be used in biological study for accumulation pattern of endogenous cytokinins and phenolics in different organs of 1-year-old cytokinin pre-incubated plants where occurrence, distribution and levels of cytokinins and bioactive phenolic compounds were strongly influenced by cytokinins pre-treatment in leaves, roots and bulbs of 1-yr-old Tulbaghia simmleri during micropropagation.