水稻光温敏核不育系智农S的选育  

Breeding of PTGMS Line Zhinong S in Rice

作　　者：陈睿[1] 农雯 罗炜强 顾建强[1,2] 陈建民 CHEN Rui;NONG Wen;LUO Weiqiang;GU Jianqiang;CHEN Jianmin(Biotechnology Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350003,China;Kehui Seed Co.,Ltd.,Taining,Fujian 354400,China)

机构地区：[1]福建省农业科学院生物技术研究所,福建福州350003 [2]科荟种业股份有限公司,福建泰宁354400

出　　处：《杂交水稻》2023年第5期41-44,共4页Hybrid Rice

基　　金：福建省属公益类科研院所基本科研专项(2021R1027009);福建省现代农业水稻产业技术体系建设项目。

摘　　要：水稻光温敏核不育系智农S是以C815S为母本与保持系629B杂交,以F1代为父本与C815S回交,经过5 a 10代定向选择培育而成。该不育系不育起点温度低、株型好、米质优、异交率高、配合力强,于2018年通过福建省农作物品种审定委员会审定。以智农S配组的智两优5336等7个组合已通过国家或省级品种审定。Zhinong S,derived from the cross of C815S//C815S/629B,is a photoperiod-and thermo-sensitive genic male sterile(PTGMS)line in rice developed through five years and ten generations of directional selection on target traits.It has low critical sterility-inducing temperature,good plant type,fine grain quality,high outcrossing rate and strong combining ability.It was technically identified by Fujian Crop Variety Appraisal Committee in 2018.Seven hybrid rice combinations including Zhiliangyou 5336 derived from Zhinong S,have been registered and released for commercial production at the national or provincial level.

关 键 词：杂交水稻 光温敏核不育系 智农S 选育 

分 类 号：S511.01[农业科学—作物学] S334