通过筛选栽培高产优质燕麦品种，为山丹地区燕麦草生产提供技术支持。以引进的6个燕麦品种为材料，对物候期、农艺性状和产量性状进行了综合评价。结果表明，6个燕麦品种在山丹县均能正长生育，生育期牧乐思、陇燕3号最长，均为111 d；青海444最短，为100 d。株高牧乐思最高，为114.2 cm，与爱沃126、陇燕3号差异不显著；而显著高于其他燕株高麦品种(P < 0.05)。爱沃126干草产量和种子产量均最高，分别为13 163.0、5 124.2 kg/hm2。6个燕麦品种中爱沃126的株高、茎粗，叶片长宽均显著高于其他品种，且分蘖数也较优，综合评价分析得出，爱沃126的综合评分最高，在山丹半干旱区生产适应性最好，最适合在山丹县半干旱区种植推广，其次是牧乐思和陇燕3号。

This experiment used 6 introduced oat varieties as materials, and provided a basis for screening excellent feed oat varieties suitable for cultivation in semi-arid areas of Shandan County through comprehensive evaluation of phenological period, agronomic traits, and yield traits. The results showed that all 6 oat varieties were able to complete their growth period in Shandan County, Molasses Longyan 3 had the longest growth period which were 111 d, while Qinghai 444 had the shortest growth period of 100 d. Molasses had the highest plant height of 114.2 cm, which was not significantly different from Everleaf 126 and Longyan 3, but was significantly higher than the rest of oat varieties(P < 0.05). Everleaf 126 had the highest hay and seed yields, at 13 163.0 kg/ha and 5 124.2 kg/ha, respectively. Among the 6 oat varieties, Everleaf 126 had significantly higher plant height, stemthickness, longer and wider leaves than other oat varieties, and also had better tillering numbers. Therefore, comprehensive evaluation analysis showed that Everleaf 126 performed the best in the semi-arid area of Shandan County and is suitable for promotion and planting, followed by Molasses and Longyan 3.

S512.6

山丹县2022年提前批中央财政林业草原生态修复治理燕麦草品种筛选项目(SDXCYSTXF2022-2-2)；张掖市重大技术攻关项目(ZY2022JBGS01)。