选育适宜的青稞品种为青稞产业多元化、绿色发展提供有力支撑，甘肃省农业科学院经济作物与啤酒原料研究所青稞研究室以青稞品种昆仑3号为母本、白4029为父本配制杂交组合，采用传统选育和现代生物育种方法--花药培养相结合，经多年南繁北育，选育出粮草双高青稞新品系陇稞2号。连续多年的青稞品系多点区域试验表明，陇稞2号平均折合籽粒产量为5 161.1 kg/hm2，较对照品种陇青1号增产9.56%。灌浆期平均折合生物产量为72 270.3 kg/hm2，较对照品种甘饲麦1号平均增产43.73%。表现出良好的稳产性和丰产性。籽粒品质优异含粗蛋白127.7 g/kg、粗淀粉439.3 g/kg 、粗脂肪28.3 g/kg ，氨基酸、β-葡聚糖、多酚等含量明显高于普通青稞及谷类饲草。适宜在海拔1 600～2 800 m的青稞种植区推广种植。

The development of suitable hulless barley variety provides strong support for the diversification and green development of the barley industry. Using Kunlun 3 as the female parent and Bai 4029 as the male parent, the Hulless Barley Research Group of the Institute of Economic Crops and Malting Barley, Gansu Academy of Agricultural Sciences, developed a hybrid combination and applied traditional breeding combined with modern biobreeding methods such as anther culture. After years of off-season generation advancement between southern and northern regions, a new high-grain-and-forage hulless barley line, Longke 2, was bred. Multi-year and multi-location regional experiments showed that Longke 2 had an average equivalent grain yield of 5 161.1 kg/ha, 9.56% higher than the control variety Longqing 1. Its average biological yield during the filling stage reached 72 270.3 kg/ha, 43.73% higher than the control Gansimai 1. The line exhibits excellent yield stability and high yield potential. Grain quality is superior, containing 127.7 g/kg crude protein, 439.3 g/kg crude starch, and 28.3 g/kg ether extract, levels of amino acid, β-glucan, and polyphenol are significantly higher than those of common hulless barley and cereal forage. It is suitable for cultivation in hulless barley production areas at altitudes of 1 600 to 2 800 m asl.

S512.3

国家自然科学基金(32260499)；甘肃省重点研发计划(22YF7NA034)；甘肃省农业科学院科技创新专项现代生物育种专项(2023GAAS13)。