Breeding and Application of a Japonic Rice Cytoplasmic Male Sterility Line, E-Jing A  

三系杂交粳稻新不育系鄂粳A的选育与应用研究（英文）

作　　者：曾庆四[1] 游艾青[1] 祝师元 万丙良[1] 戚华雄[1] 殷德所 程航[1] 李珍连[1] 吴建平[1] 徐得泽[1] 刘良军[1] 陈雄[1] 

机构地区：[1]湖北省农业科学院粮食作物研究所/粮食作物种质资源创新与遗传改良湖北省重点实验室,湖北武汉430064 [2]湖北省种子管理局,湖北武汉430070

出　　处：《Agricultural Science & Technology》2015年第10期2091-2093,2103,共4页农业科学与技术（英文版）

基　　金：Supported by the Great Special Science and Technology Project of Hubei Province during the Eleventh Five-Year Plan(2006AA201A03)~~

摘　　要：The Chaling wild abortive type （CL-type） cytoplasmic male sterile line, E-Jing A, was characterized by stable sterility with a sterile plant percentage of 100%, a pollen sterile degree of 98% with dominated typical abortive pollens, and showed the characteristics of good outcrossing with a stigma exsertion rate of 48.2% and an outcrossing rate varied from 30% to 50%, good combining ability, and fine grain quality. E-Jing A was sensitive to temperature. Its duration from sowing to heading was 78-90 d when it was sown from mid May to early June at Wuhan. The breeding procedure of E-Jing A and its characteristics, relationship of restoring and maintaining were introduced.介绍了茶野型粳稻雄性不育系鄂粳A的选育过程、特征特性及恢保关系。鄂粳A不育性稳定,不育株率100%,不育度99.8%,花粉败育以典败为主,占98%以上,柱头外露率48.2%,异交结实率30%~50%,在武汉5月上旬至6月中旬播种,播始历期为78~90 d,属感温性粳稻类型,配合力较好,品质优良。

关 键 词：Chaling wild abortive type （CL-type） Japonica sterile lines E-Jing A BREEDING 

分 类 号：S511.22[农业科学—作物学]