辽粳系列水稻品种选育及主要产量性状研究  

Breeding and Main Yield Characters of Rice Varieties of Liaojing Series

作　　者：邵国军 韩勇 丁芬 王先俱 陈亚君 张城 商文奇 

机构地区：[1]辽宁省水稻研究所,沈阳110101

出　　处：《沈阳农业大学学报》2012年第6期660-666,共7页Journal of Shenyang Agricultural University

基　　金：国家"863"新品种选育项目(2001AA241015);"十五"~"十一五"辽宁省育种攻关项目(2001201002;2008201002)

摘　　要：回顾了辽粳系列品种选育过程,并对8个具有代表性的辽粳系列品种开展了品种特性研究,总结了辽粳系列品种的育种实践与品种特性。研究表明:辽宁省水稻研究所育种工作者通过采用以高产、优质、多抗、广适为育种目标,以理想株型与杂种优势利用相结合、优化性状组配为指导,以"扩大遗传背景、扩大变异范围,提高后代结实率、提高后代选择效率"为原则的技术路线,以籼粳杂交后代的理想株型材料为桥梁种质,当地主栽品种为骨干亲本,采用多元复合杂交技术,结合多点生态选择、联合抗性鉴定和南北异地穿梭育种等方法,选出一系列粳稻新品种。辽粳系列水稻品种大体上表现出了随时代发展而增产的趋势,品种由穗数型向穗重型逐渐变化,一次枝梗数多,成穗率提高。We studied the breeding practices and the main yield characters of Liaojing rice varieties. We looked back on the process of Liaojing rice varieties breeding. The characters of Liaojing rice varieties were analyzed with 8 typical varieties. The breeding route for Liaojing rice varieties is aimed at high yield, sood quality, multiple resistance and wide adaptation, with the combination between ideal plant type and advanced heterosis as well as optimized components, and through enriching genetic backgrounds, broadening mutation, enhancing kernel setting of offspring and promoting offspring selection effect. The practical characters for developing Liaojing rice varieties were taking ideal plant type materials from indica and japonica rice as bridge, and local varieties planted in large area as elite parents, applying multi-composite crossing techniques, combining multi-location ecological selection, united resietance assessment, and shuttle breeding at different locations between the south and north to breed new japonica rice varieties. In general, the yield of the varieties of Liaojing series increased with time. The varieties changed from panicle number type to panicle weight type. The new varieties had more primary rachis branches and higher productive panicle rate

关 键 词：水稻 辽粳系列 选育 产量性状 

分 类 号：S511.22[农业科学—作物学] S503