Breeding a New Sweet Corn Variety, Mintian 683

The breeding process and main characteristics of the high-yield, high-quality and multi-resistance sweet corn variety, Mintian 683, are described. The new cultivar was bredby crossing Mintianxi 688 and Mintianxi J-3 to suit for cultivation underthe climatic and ecological conditions in Fujian. The averaged production yield of the crop in the 2014 and 2015 provincial regional trials was 15 330.9 kg·hm^-2, i.e., 5.67% higher than that of CK (Yuetian16). In the 2016 production test in Fujian, the yield was 15 692.7 kg·hm^-2, i.e., 2.56% higher than that of CK. Moreover, in the field tests, Mintian 683 showed strong lodging resistance, good or high disease resistance, as well as a quality scoreequivalent toand the contents of soluble and reducing sugarshigher than those of CK. It was certified by the Fujian Crop Variety Approval Committee in April 2017.