Screening and Adaptability Evaluation of Sweet Corn Varieties with High Yield and High Quality

In order to breed the new varieties of sweet corn with high yield, high quality and high resistance which were suitable for the local planting, 10 new varieties of sweet corn were introduced in Huxi Dong, Chengdong Village, Chengguan Town, Mingxi County for the comparative test by Mingxi County Institute of Agricultural Science in 2021. In this experiment, the characters such as the yield, biological characteristics, resistance of Yuetian No.16 were compared and analyzed by using the random block design. The results showed that the yield of Mintian 488 and Futianyu No.3 was the highest with 16 593.0 kg·hm^-2, which was 1 740 kg·hm^-2 higher than that of Yuetian No.16, with an increase of 11.7%. The yields of Sidatian 230, Jinghuang 306, Taizhentian 666 and Mintian 295 increased significantly compared with that of Yuetian No.16, which had good comprehensive characters and could be planted in the small-scale demonstration. The yield of Huitian No.8 increased significantly compared with that of Yuetian No.16, while the yield of Huitian No.9 and Mintian 869 was 0.5% and 0.7% lower than that of Yuetian No.16, respectively, with the yield reduction did not reach a significant level, which had good comprehensive characters and could continue to participate in the experimental planting. During the day, the yield of No.9 was 7 518.0 kg·hm^-2, with the field reduction reaching the extremely significant level, which had poor comprehensive characters, so it was suggested to terminate the experiment.