高产、抗病香型杂交水稻Ⅱ优15的选育及开发利用

Breeding and Utilization of Quasi-aromatic Hybrid Rice Ⅱ You 15 with High Yield and Good Blast Resistance

利用中间材料 75 39作香味供体 ,根据制定的育种目标定向选择 ,选育出香稻恢复系大粒香 15 ,用其与Ⅱ 32A配组育成香型杂交稻Ⅱ优 15。该组合具有高产稳产、熟期适中、米质较优、米饭清香、抗稻瘟病、再生能力强及制种产量高等特点 ,2 0 0 1年 2月通过福建省品种审定 。

Dalixiang 15, an aromatic indica restorer line, derived from the mutiple cross of IR36/7539∥306/IR54, was developed successfully by way of directional selection for more than ten years. Its aromatic genes come from the breeding material 7539. Its hybrid combination Ⅱ You 15 (Ⅱ 32A/Dalixiang 15) has the characteristics of high and stable yield, acceptible grain quality, aromatic cooked rice, suitable maturity, good blast resistance, strong ratooning ability and high seed production yield. It was examined and approved for release in Fujian Province in February, 2001. It was planted in an area of more than 9266 hm 2 in Fujian in 2000.