Table 1.

Flowering phenology index of S. canadensis, B. frondosa and P. laciniata.

Items	Treatment	S. canadensis	B. frondosa	P. laciniata
Onset day (d)	OTC	34 ± 2.645	9 ± 0.960	8 ± 1.483
	CK	38 ± 2.379	41 ± 2.873	13 ± 1.715
	P	0.016	0.001	0.139
Peak flowering date (d)	OTC	49 ± 2.684	65 ± 1.678	23 ± 1.944
	CK	52 ± 2.44	82 ± 2.250	31 ± 1.181
	P	0.014	0.008	0.041
Endset day (d)	OTC	77 ± 1.979	94 ± 4.326	33 ± 2.512
	CK	73 ± 0.759	103 ± 1.331	56 ± 1.499
	P	0.042	0.100	0.004
Duration (d)	OTC	44 ± 2.517	85 ± 2.824	26 ± 0.922
	CK	36 ± 1.102	65 ± 1.575	35 ± 1.432
	P	0.047	0.005	0.017
Flower number	OTC	5331 ± 557.78	401 ± 22.88	90 ± 4.590
	CK	5725 ± 557.34	352 ± 13.98	100 ± 2.068
	P	0.429	0.040	0.024
Flowering synchrony index	OTC	0.77 ± 0.036	0.85 ± 0.013	0.73 ± 0.022
	CK	0.72 ± 0.043	0.67 ± 0.011	0.84 ± 0.019
	P	0.014	0.001	0.020
Relative flowering intensity	OTC	0.54 ± 0.051	0.44 ± 0.064	0.53 ± 0.034
	CK	0.47 ± 0.056	0.27 ± 0.044	0.53 ± 0.035
	P	0.227	0.111	0.986