近年，烟草生产上种植的品种过于单一，且多数是引进国外品种。国内育成品种在生产上应用甚微。外引品种虽然品质优良，但抗病性较差；国内育成品种的抗病性虽好，但品质稍差。针对上述问题，我国烟草科技人员用生物技术与常规育种相结合的方法，选育出多个优质抗病烟草新品种? In recent years, the varieties grown on tobacco production have been too single, and the majority have introduced foreign varieties. Domestic bred varieties in the production of little use. Despite the excellent quality of the introduced species, but the disease resistance is poor; domestic varieties bred disease resistance is good, but the quality of slightly worse. In response to these problems, our country’s tobacco science and technology personnel with the combination of biotechnology and conventional breeding methods, breeding a number of new varieties of high quality disease-resistant tobacco?