It was observed that 21.5% of the plantlets produced floral buds,
in which 10.5% of them developed into normal flowers (Fig. 1B)
cultured on PGRs-free medium (CK) during the 120-day period of
observation (Table 4). With PGRs added, (treatment, I–IV) more
floral buds (33.3–62.2%) were induced. Moreover, the number of
flowers initiated from each shoot also increased, reaching the
highest value of 11 florets (Fig. 1C). Among the four treatments
tested, treatment IV was the most effective for floral buds
formation (62.2%) and flower induction (53.5%), about 15.4% of
them ended up with complete organs. However, such flowers were
undersized compared to that of normal flower but there was no
difference in their coloration (Fig. 1D)