一、引言品种变迁和品种生态型的研究是用历史发展的观点和植物生态学的观点对一定地区的品种进行研究。品种变迁的研究是探讨品种在历史上变化发展的情况,并寻求其变化发胜的原因,以便于我们有效的改良品种和利用品种。「生态型就是指种内的一些特殊遗传类型,而这些类型是在特定的居住地内引起的变异」。品种生态型是农作物在 I. INTRODUCTION Varieties and varieties of ecotypes of research is the history of the development point of view and plant ecology point of view of a certain region of the species. Variety research is to explore the variety of varieties in the history of changes in the development of the situation and seek changes in the reasons for its success, so that we effectively improve varieties and utilization of varieties. “Ecotypes refer to some specific types of inheritance within a species, and these types are variations that occur within a particular place of residence.” Variety ecotype is crop in