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近年来,大麦黄花叶病在郊区的发病面积,占大元麦总面积25％左右,而且病情有加重趋势,严重影响生产。为了探索耐病和感病大麦品种(系)在病区能减少病害的适宜播期,保证大麦稳产高产,我们于1950～1982年在本院试验场发病因,连续二年进行分期播种试验。一、材料和方法以感病品种“沪麦四号”、“早熟3号”和耐病品系“77-130”为材料。二年的播种期均
In recent years, the incidence of barley yellow mosaic disease in the suburbs, accounting for about 25% of the total area of Dayuan Mai, and the disease tends to aggravate the trend, seriously affecting the production. In order to explore the appropriate sowing date of disease-resistant and susceptible barley cultivars (lines) in the ward to ensure stable and high yield of barley, we conducted etiological researches in our hospital from 1950 to 1982 and conducted sowing in stages for two consecutive years. First, the material and methods to susceptible varieties “Shanghai wheat 4”, “precocious 3” and the resistant line “77-130” for the material. Two years of planting period are