English: Non-additive Environmental Uniformity Effect Loci Allele effects for loci with significant genotype by environment interactions and measured two-stress environment effects different from effects predicted by simple addition of single-stress effects are shown. For each of the four field sectors (control, low nitrogen [N], drought, and low N plus drought) B73 allele effects are indicated in solid and Mo17 effects as hatched. Each field environment is color-coded, with control green, low N pink, drought tan, and combined low N and drought orange. Square root prediction error variance (equivalent to SE) bars are indicated for each estimate. Addition of effect size from low N and drought provides the predicted effect size at the bottom of each graph. Low allele effect numbers indicate more variation, as the X axis on each plot is – LMR. (A) Chromosome 3 locus, bin 3.01. (B) Chromosome 6 locus, bin 6.01/6.03. (C) Chromosome 7 locus, bin 7.01.