Rubber plant Tau-saghyz (Scorzonera tau-saghyz Lipsch. et Bosse)
belongs to the family Asteraceae, a rare, endemic species with a
reduced amount. This is a perennial plant 25–40sm high, with the
powerful branching caudexes and deep rod root. The content of
rubber in roots is about 20–40% of the dry weight of roots it depend
on an age and a cultivar. It was established that the physiological
statement of explants and compound of a medium influence on an
efficiency in vitro cultivation. A rapid multiplication rate could be
obtained from leaf explants by combining the phytohormones in
MS medium. Addition of GA to MS medium containing BA and NAA
resulted in an increase in mean numbers as well as mean length
of the shoot. It implies that cytokinin in combination with GA and
auxin plays vital role in organogensis and further regeneration from
leaf explants of S. tau-saghyz. This is the first report in S.-saghyz
with protocol for direct organogenesis and regeneration from leaf
explants. Our protocol has great potential for rapid multiplication,
propagation and conservation of rare species S. tau-saghyz Lipsch. et
Bosse and also for creation a collection of Tau-saghyz, representing
scientific and commercial interest.