我国地域辽闊,水稻品种类型复杂,全面地系统地研究利用品种資源,充分发揮其增产潜力,对促进水稻生产,发展国民經济和繁荣水稻科学事业,有其深远的意义。解放以来东北地区首先从收集整理地方品种入手,同时又有計划地向国內外引种,不断扩大材料来源,充实研究內容,密切結合东北 The vast territory of our country, the complex types of rice varieties, the comprehensive and systematic study and utilization of varieties of resources, give full play to their potential for increasing production, and promote rice production, develop national economy and prosperity of rice science has far-reaching significance. Since the liberation of northeast China first start collecting and sorting local varieties, at the same time plan to introduce to domestic and foreign, expanding sources of materials, enrich the research content, in close connection with the northeast