烟草品种资源是烟草育种和烟草生产的物质基础,烟草种质资源直接关系烟草育种的成败。近年来,我国相继育成和引进了一批优质抗病烟草新品种,同时,在烟草鉴定和育种技术研究方面也取得了较大进展,为烟叶生产的平稳发展奠定了基础。然而,我国烟叶与美国、 Tobacco germplasm resources are the material basis for tobacco breeding and tobacco production. Tobacco germplasm resources are directly related to the success or failure of tobacco breeding. In recent years, a batch of new varieties of high quality and disease-resistant tobacco have been bred and introduced one after another in our country. At the same time, great progress has been made in the research of tobacco identification and breeding technology, which lays the foundation for the steady development of tobacco production. However, China’s tobacco and the United States,