Effect of Growth Regulators and Growing Media on Propagation of Oriental Lily Hybrids Through Scaling

Studies on the multiplication of two Oriental lily hybrids namely, Marco Polo and Rossato through scaling were conducted during 2003 using different growth regulators and propagation media. Experimental scales were excised from outer two rows of non dormant bulbs of 10/12 cm size with a sharp knife along with some portion of basal plate. These scales were given dip treatment in different growth regulator solutions (IBA 250 & 500 ppm; Benzyl adenine 100 & 250 ppm and control) for an hour, which were then planted in different propagation media (sawdust, sand+vermiculite 1:1 v/v, sand+moss 1:1 v/v) filled in plastic crates. These crates were maintained under prevailing temperatures varying from 11.8°C to 37.8°C for 28 week. The results showed maximum bulblet formation (78.00 and 77.22%), number of bulblets per scale (1.23 and 1.11), bulblet weight (1.42 and 1.17g) in the hybrids Rossato and Marco Polo, respectively, when scales were treated with 500 ppm IBA and planted in sawdust.