重穗型恢复系绵恢9937的选育与应用

Breeding and Utilization of Heavy-panicle Rice Restore Line Mianhui 9937

用高配合力恢复系蜀恢527作母本,四川省绵阳市农业科学研究所自育恢复系中间材料绵恢1237(辐恢838/绵恢725)为父本,杂交F1花药经立体培养选育而成新恢复系绵恢9937。该恢复系穗大粒多,千粒重高,单穗重达5.9 g,属重穗型恢复系;繁茂性好,花粉量充足,花期长,制种产量高;配合力强,所配组合国豪国香12号、宜香937分别通过了2006年重庆和广西品种审定。

Deriving from the cross of the female parent Shuhui 527 and the male parent Mianhui 1237（Fuhui 838/Mianhui 725）,the new restore line Mianhui 9937 was developed by anther culture.Mianhui 9937 had the characteristics of large panicle,big grain,wide restoring spectrum and strong restoring ability,good combining ability,good flowering,high yield of seed production,good grain quality and heavy ear.Two F1 hybrids,Guohao Guoxiang 12 and Yixiang 937,deriving from the restore line Mianhui 9937,were released by Chonging and Guangxi Crop Variety Approval Committee in 2006 respeefively.