Table 3.

Analysis of variance (F and P values) of seed protein, oil, fatty acids (g kg^–1) in soybean as influenced by year (Y), seeding rate (SR), planting date (PD), and row-type (RT, single- or twin- row) in Beulah fine sandy loam soil in 2009 and 2010 at Stoneville, MS, USA.

Effect	DF	Protein		Oil		Palmitic		Stearic		Oleic		Linoleic		Linolenic
Y	1	240	***	328	***	14.4	**	33.1	**	300	***	454	***	226	***
PD	2	105	***	123	***	243	***	37.9	***	4.95	*	64.1	***	0.59	NS
Y × PD	2	82.1	***	68.3	***	54.1	***	21.4	***	23	***	40.9	***	3.3	*
RT	1	0.01	NS	0.07	NS	0.26	NS	0.05	NS	2.3	NS	2.46	NS	0.04	NS
Y × RT	1	10.1	**	0.14	NS	17.3	***	0.18	NS	1.4	NS	0.24	NS	0.14	NS
PD × RT	2	11.6	***	9.4	**	8.7	**	0.58	NS	0.74	NS	0.81	NS	0.63	NS
Y × PD × RT	2	1.9	NS	10.3	***	15.4	***	0.52	NS	1.3	NS	0.7	NS	0.57	NS
SR	3	0.24	NS	14.8	***	1.3	NS	0.51	NS	28.9	***	0.15	NS	27.7	***
Year × SR	3	3.7	**	6.3	**	0.79	NS	1.17	NS	30.1	***	0.18	NS	31.9	***
PD × SR	6	2.4	*	12.2	***	3.2	**	0.81	NS	2.1	NS	0.52	NS	1.3	NS
Y × PD × SR	6	2.5	*	17.4	***	4.4	**	1.01	NS	1.6	NS	0.48	NS	1.6	NS
RT × SR	3	2.3	NS	7.1	**	1.0	NS	0.03	NS	0.67	NS	0.19	NS	1.1	NS
Y × RT × SR	3	1.36	NS	7.1	**	3.8	*	0.92	NS	0.61	NS	0.21	NS	1.0	NS
PD × RT × SR	6	3.9	NS	5.9	***	4.03	**	0.83	NS	3.47	**	1.51	NS	0.66	NS
Y × PD × RT × SR	6	5.53	***	3.4	**	1.94	NS	0.8	NS	3.23	**	0.43	NS	0.35	NS
Residual		53.6		28.1		29.6		1.92		155		161		38.1	***

*P ≤ 0.05; **P ≤ 0.01; ***P ≤ 0.001; NS, not significant.