highly significantp < 0.001
Analysis of Variance and Mean Comparison for Physiological Parameters, Biomass, and Root System Architecture Traits An analysis of variance (ANOVA) showed a highly significant ( p < 0.001) effect of the genotype-water regime interaction for only stomatal conductance (gs), transpiration rate (E), and intrinsic water-use efficiency (WUEi) ( Table 2 ).