“两系”杂稻是杂交水稻发展的方向．是90年代重要的攻关项目。我们本着稳推“三系”．积极引人有发展苗头的“两系”的原则。1995年从湖南引进培两优特青等”两系”组合7个进行筛选．其中培两优特青、培两优青陆矮均获得成功，但米质均达不到理想指标。1998年从湖南黔阳引进” “Two lines” hybrid rice is the direction of development of hybrid rice. It is an important research project in the 90s. We firmly promote the “three lines.” Actively introduce the development trend of the “two lines” principle. In 1995, Peiliangyouteqing and other “two lines” combinations were introduced from Hunan for screening. Among them, Peiliangyoutengqing and Peiliangyouqing were both successful, but the quality of rice did not reach the ideal target. In 1998 from Qianyang in Hunan Province to introduce "