抗病优质恢复系734的选育和应用

Breeding and Utilization of Rice Restorer Line 734 with Good Disease Resistance and Fine Quality

通过向恢复系明恢６３导入ＩＲ５３１１的抗病基因选育而成的新恢复系７３４，除高抗稻瘟病外，还具有恢复力强，配合力高，开花习性好，制种产量高，杂种优势强等优点。７３４所配组合冈优７３４、Ⅱ优７３４抗稻瘟病能力强，产量高，米质优，适应性较广，两组合于１９９７年５月通过了四川省品种审定委员会审定，具有较好的应用前景。

an indica restorer in rice, was developed from the cross of Minghui 63/IR5311. It is characteristic of good disease resistance, strong restoring ability, good combining ability and high yield of hybrid seed production. Compared with Minghui 63, it has a great improvement in rice blast resistance and grain quality. Ⅱ You 734 and Gangyou 734, examined and approved for release in Sichuan Province in 1997, have a yield advantage of 5% over the check Shanyou 63, and had been grown under an area of 8 500 hectares in Sichuan Province up to 1996.