摘要
双青A是用通过人工制保获得的保持系64B(梅青B×协青早B)与K17A回交转育成的K型优质籼稻不育系,其不育株率100%,花粉不育度99.97%,株型好,配合力强,米质达国标优质稻谷3级标准,2004年5月通过广东省科技厅组织的技术鉴定。用该不育系配制的优质杂交水稻组合双优8802于2005年3月通过了广东省品种审定。
Shuangqing A, derived from the cross and backcross of K17A/64B (a maintainer line from the cross of Meiqing B/Xieqingzao B), is a K- type indiea CMS line with good grain quality in rice. It shows the characteristics of stable male sterility with 100% of sterile plants and 99.97% of pollen sterility, good plant type, high combining ability and good grain quality (meeting the state standards of the third class of fine quality rice). It was technically certified in Guangdong Province in May, 2004 and Shuangyou 8802 (Shuangqing A x HR8802), one of its elite F1 hybrids with good grain quality, was registered and released for commercial production in Guangdong Province in March, 2005.
出处
《杂交水稻》
CSCD
北大核心
2006年第6期19-20,23,共3页
Hybrid Rice
基金
广东省科技重大专项(A2010104)
关键词
杂交水稻
灿稻不育系
双青A
优质
选育
hybrid rice
indiea CMS line
Shuangqing A
good grain quality
breeding