Table 1.

Variance components analysis of root morphology, seed yield and leaf and seed mineral composition traits in Brassica napus, showing the variation (%) in the trait associated with genotype, habit, experimental design and residual factors, (seed size effect was calculated for the root traits only), as determined by Residual Maximum Likelihood (REML) analyses

Variate	Genotype	Habit	Experimental	Seed diameter	Residual
Root traits
TRL	9	1	4	44	41
PRL	11	6	3	35	45
LRL	9	1	5	41	44
MLRL	6	1	6	5	81
LRN	9	4	5	41	43
LRD	13	2	8	3	75
Seed yield
TSW	8	3	3	-	87
Leaf mineral composition
Al	3	0	44	-	53
As	4	2	67	-	27
B	22	3	42	-	34
Ba	23	1	42	-	34
Ca	26	12	27	-	34
Cd	11	1	59	-	29
Cs	2	1	74	-	23
Cu	17	5	29	-	49
Fe	13	6	43	-	38
K	35	4	30	-	32
Mg	36	17	14	-	34
Mn	15	5	48	-	32
Mo	22	10	6	-	61
Na	37	21	6	-	36
P	21	8	17	-	55
Rb	30	7	35	-	28
S	40	15	17	-	28
Se	0	0	85	-	15
Sr	24	7	41	-	28
Ti	9	3	65	-	23
Zn	24	6	30	-	40
Seed mineral composition
B	13	2	40	-	45
Ca	16	9	26	-	49
Cd	9	8	40	-	42
Cu	32	0	6	-	62
K	21	1	25	-	53
Li	10	5	16	-	69
Mg	6	18	52	-	24
Mn	12	1	55	-	32
Mo	41	21	7	-	31
Na	12	3	26	-	59
P	12	5	50	-	32
Rb	14	3	36	-	46
S	31	13	37	-	19
Sr	9	8	27	-	57
Zn	21	12	14	-	53

TRL total root length, PRL primary root length, LRL total lateral root length, MLRL mean lateral root length, LRN lateral root number, LRD lateral root density, TSW Thousand Seed Weight. See Additional file 1: Table S10 for detailed information