高产优质三系杂交稻新组合华优107的选育与应用

Breeding and Application of New Three-line Hybrid Rice Combination Huayou 107 with High Yield and Good Quality

华优107是由夜公细胞质型不育系Y华农A与新育成的恢复系R107配组而成的三系杂交稻新组合。该组合熟期适中,长势旺盛,分蘖力强,株型适中,穗大粒多,丰产性好,稻米品质达国标优质稻谷3级标准,抗稻瘟病,成熟时青枝腊秆。2003年2月和2005年3月分别通过广西区和广东省农作物品种审定。介绍了华优107的选育过程、主要特性、栽培管理和制种技术要点。

Huayou 107 is a new three-line hybrid rice combination derived from the CMS line Y Huanong A （Yegongtype cytoplasm） and a newly-developed strong restorer line R107. It is a medium maturity combination for early cropping season in Guangxi and Guangdong, has strong tillering ability, good plant type, big panicles with many grains, high yielding ability, resistance to blast and good grain quality （up to the third class national standards of fine quality rice）. It was examined and approved in Guangxi in February, 2003, and in Guangdong in March, 2005, respectively. The breeding procedure, major characteristics, and technical points in the cultural management and hybrid seed production of Huayou 107 were introduced in this paper.