红突31系舟山地区农科所育成的一级优质米水稻良种。我所于1983年开始以红突3l为材料,利用矮败型(矮秆野生稻细胞质)温城早 A 测交转育成功红突31A 不育系,现已稳定,并投入小批量繁殖和制种,1986年参加生产鉴定。红突31A 属圆败型,柱头双外露率高,包颈轻,异交结实率高,配合力好,是一个有希望的优质米不育系。1985年我所用红突31A 优顶米恢复系IR36辐—2配组,筛选出优质米新组合红 Hung sudden 31 Department of Zhoushan region bred a high-quality rice varieties of rice. I started in 1983 with red bumps 3l as the material, the use of dwarf (dwarf wild rice cytoplasm) Wencheng Zao early A cross test transplanted successfully Red Giant 31A male sterile line, is now stable and put into small batch breeding and Seed production, in 1986 to participate in the production appraisal. Rhombus 31A is a rotund-type, stigma double-exposed rate, including neck light, high rate of outcrossing, good co-operation, is a promising high-quality CMS line. In 1985, I used the red top 31A top-top restorer line IR36 spoke-2 team, screening out the new high-quality rice combination red