Sweet corn (Zea mays L.) producers desire high yields and high sugar content in the endosperm. High irrigation levels result in high yield, but their effect on sugar content is unclear. The effects of two irrigation levels, standard and stressed on endosperm sugar content were evaluated using three sugary1 hybrids over 2 years. No significant differences were found among the treatments when averaged over hybrids and years. In 1996, reduced irrigation resulted in higher sugar levels. As expected, there were significant differences in sucrose and total sugar levels among hybrids. The ranking among hybrids differed over years.