1 and Yulong 177 maize seed varieties have compact plant types, plant height of about 260 cm, ear position of about 1 18 cm, and about 20 leaves per plant. The panicle is tubular, the panicle length is about 19. 1cm, the number of rows per panicle is about 14- 16, the panicle axis is red, the grain is yellow, the grain type is half horse-toothed, the 100-grain weight is about 36.2g, and the seed yield is 84.4%.

2. It was identified that it was moderately resistant to leaf blight, susceptible to gray leaf blight, moderately resistant to ear rot, moderately resistant to stem rot and head smut. The results showed that the grain bulk density was 744 g/L, the crude protein content was 9.8%, the crude fat content was 3.98%, and the crude starch content was 72.77%.