Table 3.

Mean differences in the number of days until the first flowering date (FFD) among the different forcing, chilling, and photoperiod treatments.

Comparisons	J. nudiflorum	F. suspensa	V. dilatatum	Y. denudata	C. yedoensis	A. davidiana
Forcing temperature
18–15°C	−2.3(−0.8)**	−11.2(−3.7)**	−21.0(−7.0)**	−16.7(−5.6)*	−20.7(−6.9)**	−3.6(−1.2)**
15–12°C	−8.5(−2.8)**	−18.5(−6.1)**	−36.1(−12.3)**	N	−21.8(−7.3)**	−28.7(−9.6)**
18–12°C	−10.8(−1.8)**	−29.7(−5.0)**	−57.1(−9.5)**	N	−42.4(−7.1)**	−32.3(−5.4)**
Photoperiod
14h–10h	−1.3**	−1.6*	−2.6	−1.0	−5.6**	−1.4
Chilling
3CD–38CD	9.2(0.26)**	26.0(0.74)**	N	N	N	N
38–59CD	2.3(0.11)**	0.8(0.04)	13.8(0.66)**	1.7(0.08)	13.8(0.66)**	0.7 (0.03)
3–59CD	11.6(0.21)**	26.8(0.48)**	N	N	N	N

For forcing temperature, the values in parentheses indicate the changes in the number of days until FFD per °C of warming. For chilling, the values in the parentheses indicate the changes in the number of days until FFD per chilling day (CD). The significance of multiple pairwise comparisons was determined with Fisher's LSD test **P < 0.01; *P < 0.05.