CAJ | 학술논문

试验采用孢子悬浮液喷雾接种法,对国内外205份大麦种质资源材料进行实验室苗期根腐病抗性筛选、鉴定。结果表明,有11份材料高抗根腐病,35份材料中抗根腐病,156份材料中感或高感根腐病；以发病严重度为分析变量做品种抗病性聚类分析,取欧式距离为2．14时,品种抗病性可分为两大类,第一类抗病材料(包括高抗与中抗)总共有46份,占供试鉴定材料的22．44%；第二类感病材料(包括中感与高感)总共有156份,占供试鉴定材料的77．09%；获得的抗病材料可作为抗病育种亲本材料,为丰富和拓展我国大麦抗病育种种质资源奠定基础。
시험채용포자현부액분무접충법,대국내외205빈대맥충질자원재료진행실험실묘기근부병항성사선、감정。결과표명,유11빈재료고항근부병,35빈재료중항근부병,156빈재료중감혹고감근부병；이발병엄중도위분석변량주품충항병성취류분석,취구식거리위2．14시,품충항병성가분위량대류,제일류항병재료(포괄고항여중항)총공유46빈,점공시감정재료적22．44%；제이류감병재료(포괄중감여고감)총공유156빈,점공시감정재료적77．09%；획득적항병재료가작위항병육충친본재료,위봉부화탁전아국대맥항병육충충질자원전정기출。
This study assessed root rot resistance in a collection of 205 samples of barley germplasm originating domestically and inter-nationally using the method of sprays for inoculating the spore suspension of the pathogen. As a result, 11 and 35 barley samples had high and medium resistance, respectively, to root rot disease, while 156 samples were moderately or highly susceptible to the disease. A clustering analysis was conducted using disease severity as the variable with Euclidean distance of 2. 14, which divided these samples into two groups based on their disease resistance. The first group was considered disease-resistant materials, which comprised 46 sam-ples with medium or high resistance to root rot disease, accounting for 22. 44% of all collected samples. The second group was consid-ered disease-susceptible materials, which consisted of 156 samples with moderate or high susceptibility to the disease, constituting 77. 09% of all samples. The samples resistant to the disease can be used as parental materials for breeding disease-resistant barley varieties. Therefore, the current study laid a foundation for enriching disease-resistant barley germplasm resources in China.