Table 1.

Descriptive statistical results for photosynthesis-related traits of soybean under different P conditions.

P levela	Trait	Year	Mean	Stdev	Skewness	Kurtosis	Minimum	Maximum	CV(%)b	Genotype	Environment	h2(%)c
NP	Pn	2015	15.66	6.87	0.83	−0.25	3.06	34.38	43.8	**	**	81.32
		2016	19.00	7.54	0.51	−0.97	4.89	36.17	39.68
	Tr	2015	3.11	1.61	1.58	3.62	0.85	10.67	51.82	**	**	72.33
		2016	4.79	2.51	0.46	−0.70	1.01	10.73	52.45
	Co	2015	0.15	0.08	0.78	0.28	0.03	0.39	53.24	**	**	78.66
		2016	0.20	0.12	0.80	0.39	0.04	0.67	58.07
	Ci	2015	391.97	138.66	1.54	3.11	131.02	972.15	35.37	**	**	74.45
		2016	301.55	43.09	0.29	2.68	131.02	444.70	14.29
LP	Pn	2015	14.90	6.56	0.72	−0.76	4.10	31.79	44.0	**	**	76.69
		2016	16.99	8.48	0.50	−0.99	2.64	36.50	49.91
	Tr	2015	3.14	1.84	1.95	5.08	0.80	11.78	58.76	**	**	75.00
		2016	4.53	2.73	0.84	−0.01	0.43	12.56	60.23
	Co	2015	0.16	0.10	1.44	2.17	0.03	0.53	63.43	**	**	80.83
		2016	0.19	0.13	1.19	1.00	0.02	0.67	69.14
	Ci	2015	410.08	139.91	1.76	3.71	130.76	954.63	34.12	**	**	69.79
		2016	312.03	43.65	0.68	0.76	213.21	457.05	13.99
L/NP	Pn	2015	1.02	0.29	2.41	15.05	0.35	3.21	28.7	**	**	47.58
		2016	0.89	0.23	0.59	2.31	0.25	1.88	26.25
	Tr	2015	1.16	0.64	2.31	7.30	0.26	4.39	55.4	**	**	63.33
		2016	1.03	0.49	2.19	7.55	0.14	3.59	47.26
	Co	2015	1.29	0.89	2.49	7.47	0.27	5.75	69.2	**	**	85.14
		2016	1.09	0.72	3.09	14.28	0.09	5.75	66.19
	Ci	2015	1.14	0.44	3.14	13.25	0.37	3.82	38.9	**	**	91.73
		2016	1.12	0.67	3.21	13.97	0.32	3.82	59.62

^**: the 0.01 level of significance.

^aP level: NP, LP, and L/NP represent the traits under normal P, low P, and the ratio of low and normal P, respectively.

^bCoefficient of variation.

^cbroad-sense heritability.