一、筛选目的自六十年代起大麦黄花叶病在上海郊区逐渐扩大,影响大麦生产。筛选抗黄花叶病资源的目的是为选育抗病品种提供抗源。本试验在1977年预备试验的基础上,自1978年以来连续进行6年,先后鉴定材料3,159份, I. Screening Purpose Since the 1960s yellow barley leaf disease has gradually expanded in the suburbs of Shanghai, affecting the production of barley. The purpose of screening anti-yellow mosaic disease resources is to provide resistance to breeding resistant varieties. Based on the preliminary tests conducted in 1977, this test has been carried out continuously for 6 years since 1978, and has successively identified 3,159 materials,