青稞微座孢根腐病病原鉴定

<正>青稞(Hordeum vulgare L. var. nudum Hook.f.)是大麦的一个变种,在马其顿、澳大利亚、加拿大西部和美国北部大平原等国家均有分布。国内主要分布在西藏、甘肃、青海、云南、四川等省的高海拔地区,粮饲兼用~(1])。青稞富含多种氨基酸、膳食纤维、维生素、β-葡聚糖以及钙、镁、磷、锌、锰、硒等矿质元素,在降低血脂、增加胃动力、防治高原

Identification of the pathogens causing microdochium root rot on naked barley

Naked barley (Hordeum vulgare L. var. Nudum Hook.f.) is a specific food and forage crop of Qinghai-Tibet plateau in China. In June and August 2016, a root rot was found on naked barley in Qinghai Province, China. The pathogen was isolated and purified, and the four isolated strains were identified as Microdochium bolleyi by morphological and molecular methods and pathogenicity determination. As far as we know, this is the first report of M. bolleyi causing root rot on naked barley in China. Therefore, it is necessary to prevent this di-sease from spreading over a large area by adopting disease management practices so as to maintain the ecosystem.