Abstract
Rooting growth and cut flower quality of Gypsophila paniculata L. cuttings grown in cell medium hardened by heat fusion polyester fiber was investigated. Rooting percentages of hardened media were not affected by medium compositions and were higher than those without hardened media. Moreover, the hardened media did not break down whenever root-ball was not formed. Regardless of transplantation age, hardened medium had little effect on transplant growth and cut flower quality. Hardened medium had no effect on the formation of succulent roots. Therefore, we developed a method of transplanting young cuttings before the root-ball formed using the harden cell medium.