水稻光温敏核不育系航93S的选育  

Breeding of PTGMS Line Hang 93S in Rice

作　　者：黄明[1] 陈志强[1] 王慧[1] 郭涛[1] 刘永柱[1] 肖武名[1] HUANG Ming;CHEN Zhi-qiang;WANG Hui;GUO Tao;LIU Yong-zhu;XIAO Wu-ming(National Engineering Research Center of Plant Space Breeding,South China Agricultural University,Guangzhou,Guangdong 510642,China)

机构地区：[1]华南农业大学国家植物航天育种工程技术研究中心,广东广州510642

出　　处：《杂交水稻》2018年第4期9-12,57,共5页Hybrid Rice

基　　金：广东省科技计划(2017B020201013);广州市科技计划(2014J4500030);国家重点研发计划(2016YFD0101100;2016YFD0102102)

摘　　要：以特籼占13空间诱变的优质超大穗新品系M-93为供体亲本,以不育系中间材料S-25(来源于C815S/合丰占)为轮回亲本杂交,后连续回交3代和自交5代,最终于2015年育成航93S。该不育系具有不育起点温度较低、开花习性好、柱头外露率高、异交结实率高、穗大粒多、配合力强、抗寒性强及稻米品质较优等特性,2017年10月通过广东省技术鉴定。Hang 93 S, derived from the cross of M-93（an inbred line with large panicle and good grain quality selected from the space mutagenesis of Texianzhan 13） and S-25（a male sterile breeding material derived from C815 S/Hefengzhan, as the recurrent parent） followed by backcrossing and selfcrossing, is an indica photo-thermo-sensitive genic male sterile（PTGMS） line in rice developed by South China Agricultural University in 2015. It is characteristic of low critical temperature of fertility alteration, good flowerring habits, high outcrossing rate with high stigma exsertion rate, large panicle size, high combining ability, strong clod resistance and good grain quailty. Hang 93 S was technically identified in Guangdong Province in October, 2017.

关 键 词：杂交水稻 光温敏核不育系 航93S 选育 

分 类 号：S511.01[农业科学—作物学] S334