%0 Journal Article %T Brassinosteroids Influences in vitro Regeneration Using Shoot Tip Sections of Cymbidium elegans Lindl %A Ravindra B. Malabadi %A K. Nataraja %J Asian Journal of Plant Sciences %D 2007 %I %X This investigation highlights for the first time the application of 24-epibrassinolide in the micropropagation of orchids. Successful initiation of protocorm-like bodies and in vitro regeneration of Cymbidium elegans was achieved using shoot tip sections and 24-epibrassinolide supplemented Mitra et al. (1976) basal medium. The highest percentage of explants (91.0%) producing PLBs (24.0¡À2.1) was recorded on 4.0 ¦ÌM 24-epibrassinolide supplemented basal medium. All the newly formed protocorm-like-bodies survived and after nearly 12 weeks, small bud-like structures formed healthy shoots. Shoots produced roots when cultured on basal medium supplemented with 2.0 ¦ÌM triacontanol. The well-rooted shoots were transferred to pots containing charcoal chips, coconut husk and broken tiles (2:2:1) and 100% survival rate was achieved. Our results for the first time demonstrate that 24-epibrassinolide provided compelling evidence that they can be effectively used in the micropropagation of orchids. %K Brassinosteroids %K epiphytic orchid %K micropropagation %K triacontanol %U http://docsdrive.com/pdfs/ansinet/ajps/2007/308-313.pdf