Table 1. Phenotypic performance of traits related to seed vigor in three parental lines and two recombinant inbred lines (RILs) under normal and three artificial aging treatments.

	GE						GP		SDW (g)					RDW (g)
	0 d	2 d	4 d	6 d	0 d	2 d	4 d	6 d	0 d		2 d	4 d	6 d	0 d	2 d	4 d	6 d
P1	0.92	0.80	0.80	0.47	1.00	0.90	0.69	0.30		0.53	0.50	0.42	0.30	0.32	0.23	0.25	0.21
P2	0.74	0.50	0.25	0.12	0.81	0.60	0.38	0.15		0.58	0.51	0.42	0.38	0.41	0.32	0.26	0.25
P3	0.88	0.65	0.60	0.33	0.97	0.85	0.51	0.27		0.47	0.38	0.39	0.33	0.29	0.24	0.23	0.21
P1 × P3 RIL
Mean ± S.D.	0.94±0.11	0.87±0.12	0.74±0.12	0.41±0.06	0.98±0.13	0.74±0.09	0.68±0.11	0.29±0.04		0.58±0.06	0.47±0.07	0.40±0.09	0.31±0.06	0.39±0.05	0.23±0.05	0.23±0.04	0.21±0.04
Range	0.75–0.98	0.83–0.96	0.57–0.88	0.35–0.58	0.84–1.00	0.70–0.89	0.47–0.77	0.25–0.37		0.56–0.71	0.32–0.64	0.25–0.54	0.24–0.57	0.33–0.48	0.17–0.31	0.22–0.48	0.18–0.37
Skewness	−1.25	−0.55	−0.31	−0.26	−0.86	−0.40	−0.07	0.10		0.34	0.05	−0.18	−0.30	0.31	−0.03	0.30	0.28
Kurtosis	0.89	0.41	−0.24	−0.27	0.61	−0.28	−0.06	−0.10		−0.14	0.03	0.17	−0.33	0.52	0.01	0.19	0.24
P2 × P3 RIL
Mean ± S.D.	0.89±0.08	0.59±0.11	0.40±0.07	0.25±0.04	0.87±0.08	0.77±0.15	0.52±0.08	0.24±0.04		0.53±0.11	0.43±0.11	0.40±0.07	0.36±0.05	0.37±0.06	0.28±0.05	0.25±0.04	0.23±0.04
Range	0.82–0.96	0.57–0.93	0.43–0.76	0.19–0.36	0.83–1.00	0.58–0.93	0.33–0.84	0.21–0.40		0.47–0.85	0.33–0.59	0.18–0.75	0.23–0.57	0.26–0.67	0.11–0.49	0.1–0.39	0.25–0.42
Skewness	−0.44	0.09	−0.05	−0.12	−0.98	0.14	0.06	−0.17		0.38	0.25	−0.12	0.14	0.61	0.14	0.08	0.17
Kurtosis	0.02	0.07	0.01	0.19	0.63	0.13	0.07	0.27		0.13	0.22	−0.11	0.16	0.89	0.16	0.04	0.18

P1, P2, and P3 indicate the Yu82, Yu537A, and Shen137 inbred lines, respectively. 0 d, control; 2 d, 2-day aging treatment; 4 d, 4-day aging treatment; 6 d, 6-day aging treatment; GE, germination energy; GP, germination percentage; RDW, root dry weight; SDW, seedling dry weight.