Table 2. Estimated hydrotime model parameters for 10 alfalfa seed lots.

Seed lot	θH (MPa·h)	Ψb(50) (MPa)	σ φb	R 2
1	17.00	−0.74	0.22	0.82
2	22.23	−0.57	0.23	0.97
3	18.65	−0.55	0.20	0.93
4	18.32	−0.77	0.21	0.89
5	15.54	−0.68	0.17	0.94
6	20.56	−0.78	0.25	0.85
7	16.18	−0.68	0.24	0.90
8	15.26	−0.64	0.21	0.95
9	13.37	−0.63	0.19	0.89
10	14.60	−0.67	0.17	0.91

Note:

The θ_H is constant hydrotime, Ψ_b(50) is base water potential for 50% of seeds to germinate, σ_φb is standard deviation of Ψ_b(50). Coefficients determination (R²) is showing the goodness of fitness of the model fitting. Three replications for each treatment of each seed lot.