Micropropagation ofLarix decidua Mill. andpinus sylvestris L.

Shoot multiplication of Larix decidua was achieved using axillary and adventitious buds. The formation of axillary buds was stimulated on shoot tips soaked in a cytokinin solution (BAP 10-50 mg 1 −1 for 2–4 h. Adventitious buds were induced on cotyledons, needles and vegetative buds cultured on WPM or QL medium supplemented with cytokinin (BAP 1–3 mg 1 −1 ). The shoot formation from induced axillary and adventitious buds was promoted on WPM or QL medium containing a low concentration of auxin (IBA 0.1 mg 1 −1 ). Shoot multiplication of Pinus sylvestris was stimulated on WPM, MS, and QL media supplemented with a low concentration of cytokinin (BAP 0.2 mg 1 −1 ) and auxin (IBA 0.1 mg 1 −1 ). Shoot segments produced 2–5 new axillary shoots within 4–5 weeks. Root initiation was stimulated on larch and pine shoots cultured first on WPM supplemented with auxins (NAA and IBA) and later transferred to auxin-free medium.