Abstract
The effects of rooting medium, the position of cutting, and indolebutyric acid (IBA) treatment on the rooting of cuttings were investigated to clarify suitable rooting conditions for cuttings of Elatostema umbellatum Blume var. majus Maxim. The rooting rate of cuttings in Kanuma soil with a particle size of 14 mm was lower than that in rooting medium with a maximum water holding capacity of 50% or more. In top and normal cuttings, rooting and sprouting rates of cuttings were 93 to 100%, respectively. The maximum root length of top cuttings was longer than that of normal cuttings. When the base of cuttings was treated with 25 ppm IBA solution for 60 minutes, the number of roots per cutting was significantly larger than that of non-treated cuttings.
