Boxplot of the adjusted entry means of all traits for the 85 maize intermated recombinant inbred lines of the maize IBM population evaluated at Fe-deficient (white) and Fe-sufficient (grey) regimes. The adjusted entry means of the parental inbreds B73 and Mo17 are represented by a square and a triangle, respectively. The line in the box represents the median of the trait. T-test application to examine the difference for a trait between both Fe conditions. *, **, ***: P = 0.05, 0.01, and 0.001, respectively; ns, not significant.