This report summarizes the results of sweet corn variety trials conducted in 1977. Observation trials of 12 commercial cultivars and Horticultural Experiment Station (H.E.S.) experimental hybrids were conducted at Simcoe and Harrow. Additional Observation trials at Simcoe included 12 commercial cultivars, 8 experimental hybrids submitted for trial and 55 experimental hybrids produced at H.E.S., Simcoe. In addition, 10 3-way line crosses were tested to determine suitability of modified Polarvee and Northernvee.