Supporting Nebraska corn farmers’ sustainability goals by addressing critical challenges posed by extreme weather events is important. Researchers are studying natural variability in water-use efficiency (WUE) and total antioxidant capacity (TAC) to help develop climate-resilient corn hybrids. These traits contribute to yield stability and sustainable crop production, helping producers adapt to Nebraska’s unpredictable weather patterns. Analyzing variability and correlations between WUE, TAC and yield performance provides breeders with actionable insights to make better management decisions.