Abstract

Callus tissue was induced in young stem segments cultured on MS based media supplemented with 0.25–0.5 mg l-1 2, 4-D. Shoots were differentiated on media containing 0.5–1.0 mg l-1 BA and 0.5–2.0 mg l-1 IBA or 0.1–0.2 mg l-1 NAA. The same media were suitable for shoot multiplication. Shoot elongation and rooting were strongly inhibited by BA and stimulated by auxins IBA and NAA. Medium containing 0.5 mg l-1 IBA was optimal for rooting. Root elongation was stimulated by light and inhibited in darkness. Transfer of rooted plantlets to outdoor conditions was feasible and special hardening procedures were not required. Among more than 5000 plants produced by this procedure only 9 off-type plants with variegated leaves were found.

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