籼型长穗颈不育系吉eA的选育  

Breeding of eui-CMS Line "Ji eA" in Indica Rice

作　　者：张红林[1] 刘海平[1] 刘跃清[1] 张瑞祥[1] 钟晓英[1] 张红忠[1] 李坦忠[1] 

机构地区：[1]江西省赣州市农业科学研究所,江西赣州341000

出　　处：《江西农业学报》2007年第9期1-5,共5页Acta Agriculturae Jiangxi

基　　金：国家科技攻关计划(2001BA507A14);江西省科技厅农业重点项目(200110100106)

摘　　要：吉eA是赣州市农业科学研究所利用该所（K17B/丰B）F3代保持系的优良株系,通过^60Coγ辐射诱变获得eui突变体,与K17A/（K17B/丰B）A的回交（B3F1）3代的不育株连续回交转育成的长穗颈不育系。吉eA农艺性状稳定、株叶形态好,播始历期70 d,比K17eA长7-8 d,不育株率100%,不育度100%,花粉败育率99.99%,开花习性较好,午前花比例高,柱头外露率高,柱头活力强,该不育系有轻度包颈,对“920”敏感,稻米品质优,抗性较强,千粒重较小。＂Ji eA＂ is an eui -CMS bred through baekerossing between the eui mutant from F3 maintainer line（ K17B/Feng B） induced by ^60Co γ and the B3F1 from K17A/（K17B/Feng B）A. ＂Ji eA＂ has the characteristics of stable agronomic character, good plant type, 70 days from sowing to initial heading which is 7 -8 d longer than K17eA, 100% sterile plant rate, 100% sterile degree, 99.99% pollen abortion rate, good flowering habit, high percentage of spikelet opening before noon, high stigma exsertion, little enclosed panicle, sensitive to ＂920＂, good grain quality, strong resistance and light 1000 -grain weight.

关 键 词：E型杂交水稻 长穗颈不育系 吉eA 选育 

分 类 号：S511.032[农业科学—作物学]