Table 1.

Physical properties of P. roxburghii seeds

Parameters	P. roxburghii
Seed coat color	Black
Cotyledon color	Green
Seed weight (g) a	0.53 ± 0.04(100)
Cotyledon weight (g) a	0.37 ± 0.01(69.8*)
Seed coat weight (g) a	0.16 ± 0.01(30.2*)
Length (cm seed−1) a	1.48 ± 0.68
Width (cm seed−1) a	0.79 ± 0.11
Thickness (cm seed−1) a	1.40 ± 0.02
Seed density (g mL−1) b	0.45 ± 0.05
Seed volume (mL 100 seeds−1) b	45.0 ± 5.0
Hydration capacity (g seed−1) b	0.74 ± 0.03
Hydration index b	1.50 ± 0.04
Swelling capacity (mL seed−1) b	0.33 ± 0.06
Swelling index b	0.74 ± 0.07

Values are mean ± SD. ^a - (n = 30); ^b - (n = 3). ^* - Ratio of cotyledon/seed coat to the whole seeds.