This thesis tests fifteen sweet corn genotypes under irrigated and non-irrigated conditions to identify those hybrids with good agronomic performance, kernel quality and yield stability. The study focuses on structural characteristics (plant height, lodging), physiological (SPAD, NDVI, LAI) and market characteristics (Brix and color characteristics) to quantify the impacts of genotype and water regime relationships on final commercial value. Results show that water availability is a dominant driver, but genetic differences are still very significant, there are certain genotypes that retain physiologic strength and yield under moisture stress. Genotypes 11, 12 and 14 consistently show better performance in both environments, showing greater stability, much greater yields and more consistent canopy vigor. The study concludes that physiological metrics such as SPAD, NDVI and LAI are not just descriptive, they are usable early screening tools for breeding programs. In short, the thesis suggests a combination of water aware agronomy and targeted genotype selection is the way forward for consistent high value sweet corn production.