Abstract
Experiments were conducted to determine the effect of soil compost on growth of leaf, root and the regenerated bulblet from bulb scales ofLilium japonicumThunb. in vitro culture. The bulblets, subcultured on MS-medium under continuous light of 40 μmol m-2s-1at 20°C in vitro, were taken out from a culture tube and transplanted into four kinds of soil compost used in the experiment. They were cultured for 120 d in a glasshouse. Soil of equivalent volume of perlite and vermiculite was the most effective for leaf emergence rate, rooting and bulblet growth in the four kinds of soil. The mixture of perlite and vermiculite was considered to be in suitable humidity, aerial and nutritional conditions. On the other hand, soil of equivalent volume of perlite and vermiculite was ineffective.
