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小麦白粉病是广泛分布于全世界潮湿和半干旱地区的一种重要病害。以往在我国云、贵、川等省危害较重,近年在华北、华中、华东等地均发生过流行为害。在我省,随着小麦生产水平的提高,该病的发生也渐趋普遍。据省农业厅估计,1981年因小麦白粉病的流行,损失粮食达2,500万斤。在该病防治中采用抗病品种是经济、有效的途经。为此,我们开展了小麦品种对白粉病抗性的鉴定和抗源的筛选工作。现将1983—1984年的主要结果报道如下。
Powdery mildew is an important disease that is widespread in humid and semi-arid regions of the world. In the past, cloud, expensive and other provinces in our country were seriously endangered. In recent years, there have been epidemic-related incidents in places such as North China, Central China and East China. In our province, with the improvement of wheat production, the incidence of the disease is also becoming more common. According to the Provincial Department of Agriculture, the loss of foodstuffs amounted to 25 million kilograms in 1981 due to the prevalence of wheat powdery mildew. It is an economical and effective way to use disease-resistant varieties in the prevention and treatment of the disease. To this end, we carried out the identification of wheat powdery mildew resistance and resistance screening. The main results of 1983-1984 are reported below.