Table 1.

Phenotypic variation of seed traits among the RIL population in four environments

Trait	Environment	Mean ± SDa	Minb	Max.c	Skew	Kurt	Sig. of K-S testd
100SW	2017 Laixi	89.86 ± 20.22	43.12	139.08	−0.171	−0.491	0.200
	2017 Sanya	112.81 ± 28.89	46.46	174.20	−0.032	− 0.614	0.200
	2018 Dongying	72.65 ± 19.20	30.09	125.98	−0.011	−0.349	0.200
	2018 Laixi	94.93 ± 23.96	39.80	148.30	0.043	−0.468	0.200
SL	2017 Laixi	18.74 ± 2.41	12.62	23.17	−0.538	−0.209	0.035*
	2017 Sanya	19.03 ± 3.08	12.27	25.98	−0.085	− 0.332	0.096
	2018 Dongying	17.08 ± 2.43	10.47	21.37	−0.556	− 0.287	0.001**
	2018 Laixi	19.06 ± 2.82	11.11	25.12	−0.461	−0.065	0.078
SW	2017 Laixi	10.27 ± 0.91	7.99	12.55	0.042	−0.387	0.200
	2017 Sanya	11.35 ± 1.14	8.11	14.99	0.247	0.370	0.200
	2018 Dongying	998 ± 1.00	7.13	12.81	0.052	0.251	0.200
	2018 Laixi	10.60 ± 1.15	7.80	13.46	0.036	−0.443	0.200
L/W	2017 Laixi	1.84 ± 0.22	1.29	2.30	−0.506	0.412	0.000**
	2017 Sanya	1.69 ± 0.23	1.20	2.19	−0.300	− 0.467	0.200
	2018 Dongying	1.72 ± 0.18	1.25	2.18	−0.461	−0.065	0.000**
	2018 Laixi	1.82 ± 0.25	1.25	2.38	−0.236	− 0.331	0.002

^aSD, standard deviation;

^bMin, minimum value;

^cMax, maximum value;

^dSig of K-S test, significance for normality test by Kolmogorov-Smirnov;

* and ** mean significant at P < 0.05 and P < 0.01, respectively