优质高产两系杂交中稻广两优5号的选育及应用

Breeding and Application of Two-line Medium Hybrid Rice Guangliangyou No.5 with Fine Quality and High-yielding

广两优5号是湖北省农业科学院粮食作物研究所以自育香型恢复系香5为父本,以两系不育系广占63-4S为母本组配的两系杂交中稻新组合,具有产量高、生育期适宜、稻米品质优、有香味等特点。介绍了该组合的选育经过、主要特征特性、高产栽培及高产制种技术要点。

Guangliangyou No.5,derived by crossing the PTGMS line Guangzhan 63-4S with a new fragrant restorer Xiang 5,was a new two-line medium hybrid rice combination bred by Food Crops Institute of Hubei Academy of Agricultural Sciences.It had fine grain quality,high yield,suitable maturity and fragrance.The breeding procedure,main characteristics,and high-yielding techniques of cultivation and seed production of Guangliangyou No.5 were introduced.