Mean and range of grain element concentrations.

1Subpopulation group analysis was performed using the allocation of the cultivars to the four subpopulation groups: aus, indica, temperate japonica and tropical japonica. Mean values for the subpopulation groups are presented in Table S1.2This (summarised) data has previously been reported in Norton et al. (35).Analysis of cultivar differences and subpopulation group differences are presented as the F value from two separate one-way ANOVA tests, one for cultivar and one for subpopulation.