Lilium ledebourii (Boiss) is a wild native plant of Iran. This endangered species is a commercial ornamental plant candidate. To introduce and domesticate endemic wild plants, evaluation for propagation is a first step. Hence scaling along with plant growth regulators (PGR) was worked on. Bulbs of L. ledebourii were obtained from its native habitat in Damash, Iran. Followed by sterilization and in order to evaluate propagation efficiency, three experiments were carried out. Scaling experiments in factorial of completely randomized design (CRD) were performed in three replications. Two factors were considered in these experiments: 1- Different scale portions in three levels A:
complete scale B: the lower portion C: the upper portion 2- NAA and IBA in 4 levels A:
control, B: 100 mg/F’ C: 300 mg/F’ D: 500 mg/i’. Analysis of variance was carried out, using 5% level Duncan, S multiple range test. The results demonstrated that different scale portions influence bulblet production and regeneration. The best result was obtained from complete scale which caused an increase number of scales, bulblets, weight of bulblets, bulblet diameter, and number as well as length of roots. When scales were treated with different concentrations of NAA, the number of bulblets was increased, but the greatest fresh weight was obtained in control. Different concentrations of IBA very significantly effected on various traits recorded. The most number of bulblets was obtained from 300 and 500 mg/F’ IBA while 100 mg/F’ IBA increased weight of bulblets as well as length of roots.
)