Abstract
The effects of gibberellin (GA) and benzylaminopurine (BAP) treatment on endodormancy breaking of bulbils and transplant growth were investigated in Elatostema involucratum Franch. & Sav. The final emergence rates of dormant bulbils dipped in 0, 100, and 500 ppm of GA solution were 0, 84, and 34%, respectively. When the bulbils were treated with a combined solution of GA at 0, 10, 50, or 100 ppm and BAP at 0, 1, or 10 ppm, better emergence rates were observed than when treated with a concentration of 100 ppm of GA. BAP treatment had no effect on endodormancy breaking. However, combination treatment with BAP and GA at a concentration of 10 or 50 ppm led to early germination of bulbils and decreased Desukumi (phenomenon whereby growth of the bud stops after emergence) rates compared to single treatment with a concentration of 10 or 50 ppm of GA. The transplants were treated twice with solution with a concentration of 25 and 100 ppm of GA or BAP in by spraying. The main stem length of transplants treated with GA was significantly longer than that of the control, caused by internode elongation. The number of lateral shoots from the main stem with BAP treatment was significantly higher than that of the control.
