1- Atrashi M., Tavakoli E., Darzi M.T., Hashemi J., Rozbeh S.H., and Masum M. 2011. Effect of ultrasound on the production of Carvone as a secondary metabolite in callus derived from Bunium persicum Boiss. Journal of Herbal Drugs, 2: 129-135. (in Persian)
2- Azadi P., and Khosh-Khui M. 2007. Micropropagation of Lilium ledebourii (Baker) Boiss as affected by plant growth regulator, sucrose concentration, harvesting season and cold treatments. Electronic Journal of Biotechnology, 4: 582-591.
3- Bakhshaie M., Babalar M., and Khalighi M. 2010. Somatic embryogenesis and plant regenerationof Lilium ledebourii (Baker) Boiss., an endangered species. Plant Cell Tissue and Organ Culture, 102: 229–235.
4- Bochu W., Jiping S., Biao L., Jie L., and Chuanren D. 2004. Soundwave stimulation triggers the content change of the endogenous hormone of the Chrysanthemum mature callus. Colloids and Surfaces B: Biointerfaces, 37: 107-112.
5- Bochu W., Yoshikoshi A., and Sakanishi A. 1998. Carrot cell growth response in a stimulated ultrasonic environment. Colloids and Surfaces B: Biointerfaces, 12: 89-95.
6- Gaba V., Kathiravan K., Amutha S., Singer S., Xiaodi X., and Ananthakrishnan G. 2006. The uses of ultrasound in plant tissue culture. Journal Plant Tissue Culture Engineering, 417-426.
7- Ibanescu M., Constantinovici D., and Strajeru S. 2008. Study about the ultrasound effects on potato plantlets (Solanum tuberosum L.), conserved in vitro through slow growth method. Studia Universitatis, 18: 41-44.
8- Joersbo M., and Brunstedt J. 1990. Direct gene transfer to plant protoplasts by mild sonication. Plant Cell Reports, 9: 207-210.
9- Kanchanapoom K., Ponpiboon T., Wirakiat W., and Kanchanapoom K. 2011. Regeneration of lily (Lilium longiflorum ‘Easter lily’) by callus derived from leaf explants cultured in-vitro. Science Asia, 37: 373–376.
10- Kapoor R., Kumar S., and Kanwar J.K. 2008. Bulblet regeneration from ex-vitro root explant in lily hybrids. Horticultural Science, 35: 107-112.
11- Kapoor R., Kumar S., and Kanwar J.K. 2009. Bulblet production from node explant grown in-vitro in hybrid lilies..International Journal of Plant Production, 3: 1-6.
12- Liu Y., Takatsuki H., Yoshikoshi A., Wang B., Sakanishi A. 2003. Effects of ultrasound on the growth and vacuolar H+-ATPase activity of Aloe arborescens callus cells. Colloids and Surfaces B: Biointerfaces, 32: 105-116.
13- Mir J.I., Ahmed N., Itoo H., Sheikh M.A., Rashid R., and Wani S.H. 2012. In-vitro propagation of Lilium (Lilium longiflorum). Indian Journal of Agricultural Sciences, 82(5): 455–558.
14- Novak, F.J., and Petru, E. 1981. Tissue culture of Lilium hybrids. Scientia Horticulturae, 14: 191-199.
15- Omidi M, and Farzin N. 2012 Biotechnology approaches for improvement of medicinal plants. Modern Genetics Journal 7:209-220 (in Farsi).
16- Padasht Dahkaei, M. N., Khalighi, A., Naderi, R., and Mousavi, A. 2006. Effect of temperature, propagation media and scale position on bulblet regeneration of Chelcheragh lily (Lilium ledebourii) by scaling method. Seed and Plant 22: 383-397. (In Persian)
17- Padasht Dahkaei M. N., Khalighi A., Naderi R., and MoUsavi A. 2008. Effect of different concentration of benzyladenine (BA) and naphthalene acetic acid (NAA) on regeneration of Lilium ledebourii (Chelcheragh Lily) using bulblets microscales. Seed and Plant Improvement Journal, 24: 321-332. (in Persian)
18- Pelkonen V.P., and Kauppi A. 1999. The effect of light and auxins on the regeneration of lily (Lilium regale Wil.) cells by somatic embryogenesis and organogenesis. International Journal of Plant Sciences, 160: 483-490.
19- Pierik R.L., and Steegmans H.M. 1975. Effect of auxins, cytokinins, gibberellins, abscisic acid and etephon on regeneration and growth of bulblets on excised bulb scale segments of hyacinth. Physiology Plant, 34: 14-17.
20- Podwyszynska M. 2006. Improvement of bulb formation in micropropagted tulips by treatment with NAA and pacleobutrazol or accymidol. Acta Horiculture, 725: 679-684.
21- Shin Y.K., Abdullahil Baque M., Elghamedi S., Lee E.J., and Paek K.Y. 2011. Effects of activated charcoal, plant growth regulators and ultrasonic pretreatments on in-vitro germination and protocorm formation of Calanthe hybrids. Australian Journal of Crop Science, 5: 582-588.
22- Tatari varnusfaderani M., Fotouhi Ghazvini R., Hamidoghli Y., and Hatamzadeh A. 2004. Effects of plant growth regulators and kind of bulblet initiation on in-vitro culture of bulb scale segments from Lilium ledebourii (Chelcheragh lily). Journal of Agricultural Science, 1(2): 19-27. (in Persian)
23- Una G., Sanin H., Jasmina C., Anisa R., and Damir M. 2010. In-vitro propagation of Lilium martagon L. var. cattaniae Vis. and evaluation of genotoxic potential of its leaves and bulbs extracts. Acta Biologica Slovenica, 53(2): 53- 60.
24- Wei M., Yang C.Y., andWei S.H. 2012. Enhancement of the differentiation of protocorm like bodies of Dendrobium officinale to shoots by ultrasound treatment. Journal of Plant Physiology, 169: 770-774.
25- Xiujuan W., Bochu W., Yi J., Danqun H., andChuanren D. 2003. Effect of sound stimulation on cell cycle of chrysanthemum (Gerbera jamesonii). Colloids and Surfaces B: Biointerfaces, 29: 103-107.