为筛选抗青稞根腐病的优良品种，结合甘南州青稞栽培种植现状，采用烧杯水琼脂法对37个青稞品种进行室内抗性筛选，对20个青稞品种(系)进行田间抗性鉴定试验，采用Topsis综合评价分析各品种千粒重、抗倒性、产量、根腐病发病率等指标。室内抗性筛选试验结果表明， NQK01-03、碌曲紫青稞和黄青1号为抗病品种，黄青2号、昆仑14号、藏青13号、康青7号和舟曲紫青稞为中抗品种。田间抗性筛选结果表明，0217、昆仑14号、0349、甘青7号、12-10556为优良抗病品种，折合产量在4 040～5 660 kg/hm2。所筛选鉴定的青稞品种能有效降低根腐病发生率且可大幅提高产量，可在甘南州不同地区种植。

In order to screen the superior varieties resistant to the root rot disease of highland barley， 37 highland barley varieties were selected for indoor resistance screening by beaker water AGAR method based on the current situation of highland barley cultivation in Gannan prefecture. Besides， 20 varieties were selected for field resistance test. Topsis comprehensive evaluation was used to analyze the indices of 1 000-grain weight， lodging resistance， yield and incidence of root rot. The results showed that NQK01-03， Luqu purple highland barley and Huangqing 1 were resistant varieties， while Huangqing 2， Kunlun 14， Zangqing 13， Kangqing 7 and Zhouqu purple highland barley were moderately resistant varieties. The results of resistance screening indicated that 0217， Kunlun 14， 0349， Ganqing 7， 12-10556 were excellent resistant varieties with equivalent yields of 4 040~5 660 kg/hm2. The selected highland barley varieties can effectively reduce the incidence of root rot and greatly increase the yield of highland barley， which can be planted in different areas of Gannan prefecture.

S512.3

甘肃省农业科学院科研条件建设及成果转化项目(2019GAAS09)；甘肃农业大学学生科研训练计划(SRTP)项目(202102024)。