BA dissolved in 100% dimethyl sulfoxide (DMSO) as a stock solu-tion was diluted in DW.
Five florets from the first row of threeflowers (15 florets total) were used for each treatment.
For theBA dip treatment, petals were dipped in BA solution for 5 s, thentransferred to individual 1.5 mL microtubes containing DW.
For thetreatment immersing florets in BA solution, the basal ends of flo-rets were immersed in 100 M solution for 24 h, then transferredto DW.