酒623是以外引系6H为母本、自育系酒23为父本选育而成的中晚熟玉米新品种。在2014 — 2015年甘肃省中晚熟高密A组玉米区域试验中，2 a10点(次)平均折合产量16 402.5 kg/hm2，比对照品种先玉335增产6.6%。在2016年甘肃省中晚熟高密A组玉米生产试验中，5点平均折合产量15 406.5 kg/hm2，比对照品种先玉335增产4.6%。酒623抗穗腐病、丝黑穗病和瘤黑粉病，中抗茎基腐病和矮花叶病。籽粒含粗蛋白8.26%、粗脂肪3.61%、粗淀粉74.51%、赖氨酸0.21%。适宜在甘肃省中晚熟水地春玉米区种植。

Jiu 623 is a new middle-late mature corn cultivar， with parents combination of foreign inbred line 6H and inbred line Jiu 23. In 2014 — 2015， the average yield of Jiu 623 in 2 a 10 sites (times) was 16 402.5 kg/hm2， 6.6% higher than the control Xianyu 335 in Gansu Corn Regional Test of Middle-Late Mature/High Density A Group. In 2016， the average yield of Jiu 623 in 5 sites was 15 406.5 kg/hm2， 4.6% higher than the control Xianyu 335 in the Gansu Corn Regional Test of Middle-Late Mature/High Density A Group. It is resistant to spike rot， head smut and gall smut， middle resistant to stem rot and dwarf mosaic disease. The crude protein， crude fat， crude starch， lysine contents are 8.26%， 3.61%， 74.51% and 0.21%， respectively. It is suitable to be grown in irrigated middle-late mature spring corn area in Gansu Province.

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