Table 3.

Phenotypic variation of five growth period traits for the two parents and derived RIL populations in two environments

Environment	Trait	Parents		RIL population
		GH06	P174	Range (days)	Mean (days)	SD	Median	Variance	CV(%)	Kurtosis	Skewness
17CQ	DIF	147	135	131–161	143.72	6.33	144	40.12	4.41	0.08	− 0.71
	DFF	171	171	157–186	173.85	5.04	174	25.44	2.90	− 0.60	0.45
	FP	24	36	21–39	30.40	3.82	30	14.61	12.57	0.16	− 0.52
	MT	43	41	30–54	40.41	4.10	40	16.78	10.14	0.52	0.73
	GP	214	212	205–220	214.24	3.03	214	9.21	1.42	− 0.36	0.00
18CQ	DIF	155	149	148–160	152.90	2.59	153	6.70	1.69	0.28	0.02
	DFF	170	168	165–179	170.84	2.94	171	8.63	1.72	0.25	− 0.42
	FP	15	19	13–23	18.19	2.18	18	4.76	11.99	0.11	− 0.23
	MT	39	35	25–43	34.27	3.26	34	10.61	9.51	0.04	− 0.07
	GP	209	203	201–212	205.14	3.07	204	9.44	1.50	0.63	− 0.72

17CQ, 17 Chongqing; 18CQ, 18 Chongqing; SD, standard deviation; CV, coefficient of variation; DIF, days to initial flowering; DFF, days to final flowering; FP, flowering period; MT, maturity time; GP, growth period