GA3 concentration (mg l−1)a
Total amount of GA3 applied (mg/plant)
Days to flower
Plant height (cm)
Petiole length (cm)
Peduncle length (cm)
Number of inflorescences per plant
Number of flowers per plant
Fig. 1. Effect of GA3 on growth and flowering of Henckelia humboldtianus
Materials and methods
Plant materials
GA3 treatments