Table 2. Analysis of the seed position on the cob on B73 ionomic profiles.

	Dyn Range Cob	Dyn Range 2010	Dyn Range 2011	Farm p val	Field p val	Cob p val	Farm SSperc	Field SSperc	Cob SSperc
B	1.40	1.81	1.69	NS	NS	NS	0.05	0.06	0.31
Na	1.32	2.59	4.00	NS	NS	4.3E-04	0.19	0.04	0.33
Mg	1.08	1.51	1.59	3.2E-11	NS	NS	0.83	0.00	0.01
Al	1.50	2.00	3.00	2.0E-04	NS	NS	0.40	0.00	0.20
P	1.08	1.52	1.43	7.3E-14	NS	NS	0.85	0.01	0.05
S	1.15	1.64	1.56	6.9E-05	NS	3.6E-05	0.36	0.00	0.33
K	1.08	1.80	1.77	5.8E-06	NS	NS	0.54	0.05	0.07
Ca	1.60	3.50	4.07	2.1E-08	NS	1.4E-08	0.44	0.01	0.40
Mn	1.22	2.70	3.63	3.9E-05	NS	NS	0.46	0.02	0.15
Fe	1.24	2.11	2.11	2.6E-10	NS	7.9E-07	0.61	0.01	0.24
Co	1.55	7.84	11.02	NS	NS	NS	0.31	0.04	0.06
Ni	1.26	7.33	9.72	9.7E-16	NS	NS	0.88	0.03	0.02
Cu	1.49	5.78	5.45	2.2E-09	NS	5.7E-07	0.55	0.02	0.28
Zn	1.24	1.98	2.62	NS	NS	3.6E-04	0.18	0.02	0.35
As	1.58	2.65	3.71	8.2E-12	NS	NS	0.84	0.01	0.00
Rb	1.16	2.41	2.77	6.3E-18	NS	NS	0.92	0.01	0.02
Sr	2.30	3.71	3.94	5.8E-11	NS	4.9E-07	0.64	0.00	0.23
Mo	1.21	6.50	3.64	1.5E-21	NS	NS	0.97	0.00	0.00
Cd	1.73	16.30	13.01	NS	NS	NS	0.43	0.00	0.01

Dyn Range Cob: the average dynamic range of values (max accumulation of a position on a single cob/min accumulation on the same cob) from different positions on the cob. Dyn Range 2010 and 2011: the dynamic range in genotype values within that year (max accumulating genotype/min accumulating genotype). Farm p val: p value for the farm term in an ANOVA of a linear model with farm, field location, and location on cob. Field p val: p value for the field location term. Cob p val: p value for the location on cob term. The significance cutoff was set at p<0.0005 to account for the multiple testing correction. NS: not significant. Farm, Field and Cob SSperc are the percentage of the variance (sum of squares) accounted for by the various terms. Selenium was not measured in this experiment.