论文部分内容阅读
近十几年来,四川省天全县始阳公社的“小麦黄色花叶病”已从个别田块零星发生扩展到天全、汉源、雅安3县中的14个公社。这期间虽然由于换种、选种和轮作换茬对病害有所控制,但总的趋势还在继续发展,特别是连作麦田更严重。经过在病区长期的调查和室内试验观察,否定了生理影响和真菌与细菌的寄生性病害。于1974年1、2月份(气温10℃以下)取田间小麦感病品种“大头黄”病叶汁液,以常规方法接种于“阿
Over the past decade or so, the “wheat yellow mosaic disease” in Shiyang commune of Tianquan County in Sichuan Province has sporadically spread from individual fields to 14 communes in 3 counties of Tien Quan, Hanyuan and Yaan. During this period, the overall trend is still continuing to develop due to the control of the disease due to seed selection, seed selection and crop rotation. In particular, continuous cropping is more serious. After a long period of investigation in the ward and laboratory tests to observe, to negate the physiological effects and fungal and bacterial parasitic diseases. In January and February 1974 (temperature below 10 ℃) take wheat varieties susceptible to “big yellow” disease leaf juice, inoculated in the conventional method "A