Table 5.

Seed germination parameters for response of B. pilosa to water potential from three populations based on hydrotime model analysis for different temperatures

Population	Temperature (℃)	θH (MPa·h)	ψb(50) (MPa)	σψb	R2
Baoshan	8	190.20	-0.53	0.56	0.73
	12	160.23	-1.15	0.48	0.85
	15	159.07	-1.32	0.52	0.89
	20	66.06	-0.93	0.37	0.77
	25	44.09	-0.73	0.27	0.64
	30	28.06	-0.42	0.25	0.78
	35	34.01	-0.22	0.16	0.93
Guilin	8	428.40	-0.90	0.43	0.86
	12	279.78	-1.54	0.82	0.74
	15	165.44	-1.28	0.66	0.81
	20	52.00	-0.87	0.31	0.74
	25	33.96	-0.72	0.26	0.77
	30	43.23	-0.66	0.29	0.80
	35	69.56	-0.37	0.36	0.79
Danzhou	8	313.91	-0.16	0.68	0.81
	12	156.35	-1.00	0.47	0.64
	15	90.21	-0.75	0.36	0.75
	20	43.81	-0.79	0.30	0.73
	25	34.79	-0.75	0.24	0.83
	30	53.34	-0.76	0.47	0.77
	35	58.23	-0.41	0.30	0.93

θ_H = constant hydrotime, ψ_b(50) = median base water potential, σ_ψb = standard deviation of ψ_b(50)