Addendum

Figures & data

Table 1. Effect of TDZ concentrations on the vegetative growth parameters of Dendrobium ‘Sunya Sunshine’ potted plants.

Treatment	Stem height (cm)	Stem diameter (mm)	Leaf length (cm)	Leaf width (cm)	Number of new shoot
TDZ0	17.63±1.74 a^a	14.38±0.67 b	10.62±0.59 ab	3.52±0.08 a	0.33±0.21 c
TDZ30	16.88±0.78 a	16.42±0.27 a	10.02±0.32 b	3.56±0.15 a	1.83±0.17 a
TDZ60	17.34±1.45 a	14.31±0.71 b	10.78±0.69 ab	3.17±0.19 ab	1.17±0.31 b
TDZ90	17.83±1.05 a	13.88±0.54 b	11.64±0.27 a	3.05±0.09 b	0.50±0.22 c
TDZ120	17.04±0.65 a	14.34±0.73 b	11.09±0.26 ab	3.28±0.16 ab	0.33±0.21 c

Notes: TDZ_{0, 30, 60, 90, 120} represented the TDZ concentration of 0, 30, 60, 90 and 120 mg·L⁻¹, respectively.

^aThe data were measured at the 60th days after first treatment and represent means of 30 plants per treatment ± standard error. Different letters indicated significant differences at P≤5%.

Table 2. Effect of TDZ concentrations on the flowering timing and duration of Dendrobium ‘Sunya Sunshine’ potted plants^a.

Treatment	First inflorescence emergence time (days)	First flower bloom time (days)	First flower duration (days)^b	Flower duration (days)^c
TDZ0	28.0 ± 0.7 a	65.2 ± 1.0 b	54.2 ± 1.9 a	75.0 ± 2.4 a
TDZ30	22.0 ± 1.4 b	63.3 ± 1.5 b	55.8 ± 2.2 a	69.2 ± 4.4 a
TDZ60	22.2 ± 1.2 b	67.8 ± 1.1 ab	51.5 ± 1.7 a	67.0 ± 4.3 a
TDZ90	23.0 ± 1.8 b	71.8 ± 1.9 a	34.7 ± 3.4 b	43.2 ± 6.2 b
TDZ120	24.8 ± 1.0 ab	70.8 ± 2.1 a	30.2 ± 2.1 b	49.7 ± 5.1 b

^aAll the statistical data were based on the number of floral bud formation and flowering plants. First inflorescence emergence time and first flower bloom time were calculated from the day of first treatment. The data represent means of 30 plants per treatment ± standard error. Different letters indicated significant differences at P ≤ 5%.

^bFirst Flower duration is the number of days counted from the bloom to the wilt of the first flower.

^cFlower duration is the number of days counted from the bloom of the first flower to the wilt of the last flower of the plant.