优质早籼恢复系R899的选育及应用  

Breeding and Application of Fine Quality Early Indica Restorer Line R899

作　　者：李四九 欧阳国春 蒋小军 蒋刚生 

机构地区：[1]永州市农业科学研究所,湖南永州425006

出　　处：《杂交水稻》2005年第2期23-24,36,共3页Hybrid Rice

摘　　要：R8 99是湖南省永州市农科所用湘早籼 13号与To974杂交后定向选育而成的早籼恢复系 ,具有恢复力强、抗稻瘟病、米质优、制种产量高等特点。R899所配系列组合表现产量高 ,稳产性好 ,米质较优 ,生育期适宜 ,适应性广。其中Ⅰ优 899和金优 899于2 0 0 4年R899, developed from the cross between Xiangzaoxiang 13 and To974 by the Yongzhou Agricultural Research Institute of Hunan Province, is a new early cropping indica restorer line in rice. It is characteristic of strong restoring ability, good blast resistance, fine grain quality and high hybrid seed yield. The serial hybrid combinations of R899 showed high and stable yield, good grain quality, suitable maturity and wide adaptability. Among them, Ⅰ You 899 (You Ⅰ A/R899) and Jinyou 899 (Jin 23A/R899) were certified to release to commercial production in Hunan Province in February, 2004.

关 键 词：早籼稻 恢复系 R899 选育 优质 

分 类 号：S511.03[农业科学—作物学] S334