Table 1.

Statistical analysis of oil content (OC), sileque length (SL), seeds per silique (SS), and seed weight (SS) for the parental lines and the recombinant inbreed lines (RILs)

Years	Locations	Traits	Parents			RIL population
			M201(Mean ± SD)	352 (Mean ± SD)	(P value)	Range	Mean ± SD	CV(%)
2011 (Y11)	Gansu	OC (%)	42.7 ± 2.92	29.8 ± 3.31	<0.01	24.6–47.6	35.3 ± 4.22	12.3
		SL (cm)	5.8 ± 0.47	4.3 ± 0.49	<0.01	3.0–9.0	4.8 ± 0.68	15.9
		SS	19 ± 3.13	15 ± 3.22	>0.05	8–17	17 ± 3.27	19.3
		SW (g)	2.98 ± 0.33	2.61 ± 0.29	>0.05	1.36–4.22	2.70 ± 0.47	17.5
2012 (Y12)	Wuhan	OC (%)	49.6 ± 2.77	35.3 ± 2.60	<0.01	29.5–49.3	42.3 ± 3.02	7.0
		SL (cm)	6.1 ± 0.41	4.7 ± 0.33	<0.01	3.6–6.7	5.1 ± 0.57	11.4
		SS	20 ± 2.18	17 ± 2.06	>0.05	10–25	18 ± 2.90	16.2
		SW (g)	3.47 ± 0.49	3.29 ± 0.28	>0.05	2.38–4.58	3.36 ± 0.39	11.6
2013 (Y13)	Wuhan	OC (%)	44.9 ± 2.51	30.7 ± 2.09	<0.001	23.7–46.7	37.6 ± 3.95	10.4
		SL (cm)	5.9 ± 0.39	4.5 ± 0.31	<0.001	3.7–6.3	4.9 ± 0.54	11.2
		SS	16 ± 2.95	14 ± 2.63	>0.05	7–25	15 ± 3.15	21.2
		SW (g)	3.33 ± 0.24	3.02 ± 0.48	>0.05	2.26–4.61	3.30 ± 0.41	12.5

Y11–rapeseed growth environment in 2011 at Hezhen, Gansu Province, China; Y12 and Y13–rapeseed growth environments in 2012 and 2013 at the experimental farm in Wuhan, Hubei Province, China; SD–standard deviation; CV–coefficient of variation.

The t test significant level was 0.05.