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Position: Home > Articles > Breeding of eui-CMS Line "Ji eA" in Indica Rice Acta Agriculturae Jiangxi 2007,19 (9) 1-5

籼型长穗颈不育系吉eA的选育

作  者:
张红林;刘海平;刘跃清;张瑞祥;钟晓英;张红忠;李坦忠
单  位:
江西省赣州市农业科学研究所
关键词:
e型杂交水稻;长穗颈不育系;吉eA;选育
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。
译  名:
Breeding of eui-CMS Line "Ji eA" in Indica Rice
作  者:
ZHANG Hong-lin,LIU Hai-ping,LIU Yue-qing,ZHANG Rui-xiang,ZHONG Xiao-ying,ZHANG Hong-zhong,LI Tan-zhong(Ganzhou Agricultural Sciences Research Institute,Ganzhou 341000,China)
关键词:
e-type hybrid rice;eui-CMS;Ji eA;Breeding
摘  要:
"Ji eA" is an eui-CMS bred through backcrossing 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.

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