热带亚热带玉米新品种桂单655的选育

Breeding of a New Tropical-subtropical Maize Variety Guidan 655

桂单655是广西壮族自治区农业科学院玉米研究所选育的高产稳产、优质广适、综合抗性较好的杂交玉米新品种,2018—2019年参加国家热带亚热带玉米组品种区域试验,平均产量为9300 kg/hm^(2),比对照品种桂单162(平均产量8366.3 kg/hm^(2))平均增产11.16%,两年分别比对照品种增产7.07%和15.42%,在28个有效试验点中,增产点比例为71.43%。品质分析结果表明,该品种具有较高的粗蛋白质和粗淀粉含量,优质性状突出,说明该品种在我国热带亚热带地区具有极高的推广应用价值。

Guidan 655 is a new hybrid maize variety with high and stable yield,high quality with wide adaptability and good comprehensive resistance selected by the Maize Research Institute of Guangxi Academy of Agricultural Sciences.In the Variety Regional Trial of National Tropical-Subtropical Maize Group in 2018 and 2019,the average yield of Guidan 655 was 9300 kg/hm^(2) and the increase of average yield was 11.16%compared with the control Guidan 162 with the average yield of 8366.3 kg/hm^(2),the average yield increased by 7.07%and 15.42%in the two years,respectively.Among the 28 effective test sites,71.43%of test sites showed yield increase.The results of quality analysis showed that Guidan 655 had high crude protein and coarse starch content with prominent quality characteristics.It was suggested that the variety had a very high value of popularization and application in the tropical-subtropical region of China.