理想株型优质水稻恢复系华恢451的选育及应用  

Breeding and Utilization of Restorer Line Huahui 451 with Ideal Plant Type and High Grain Quality in Rice

作　　者：杨远柱[1] 胡小淳[1] 符辰建[1] 秦鹏[1] 

机构地区：[1]湖南亚华种业科学研究院,湖南长沙410119

出　　处：《杂交水稻》2009年第5期7-11,共5页Hybrid Rice

基　　金：湖南省"十一五"科技重大专项(2006NK1001)

摘　　要：华恢451是湖南亚华种业科学研究院用"明恢63/Lemon"t的F5代株系作母本与先恢207杂交选育而成的水稻新恢复系。该恢复系株叶型理想,株型紧凑,剑叶直立,呈凹形,分蘖力中等,穗大粒多,颖尖无色,恢复力强,配合力好,品质优良,中感稻瘟病,抗高温能力强,耐寒性好。所配组合产量高,米质优,其中华优451、K优451、亚华优451、H28优451先后通过了省或国家品种审定;H28优451被评为湖南省2等优质米品种,三香优451和Q优451被评为湖南省3等优质米品种,K优451、亚华优451区试中米质均达到国标3级优质稻谷标准,应用前景广阔。Huahui 451, derived from the cross of （Minghui 63/Lemont） F5//Xianhui 207, is a new rice restorer line developed by Hunan Yahua Seed Industry Research Institute. It shows ideal plant type with ereet and eoneave flag leaves, medium tillering ability, large panicles with glume tips awnless and eolorless, strong restoring ability, high combining ability, high grain quality, medium blast suseeptibility, strong heat resistance and good cold tolerance. The hybrids derived from Huahui 451 show both high yield and high quality. Among them, Huayou 451, K You 451 and Yahuayou 451 have been registered and released to commereial production by national or provineial crop variety appraisal committees, H28 You 451, Sanxiangyou 451 and Q You 451 have been eertified as fine quality rice varieties in Hunan Provinee, and the grain quality traits of both K You 451 and Yahuayou 451 can meet the third class of national fine quality rice standards, which indicates a promising applieation prospeet of its hybrids in commercial production.

关 键 词：杂交水稻 恢复系 华恢451 理想株型 优质 选育 

分 类 号：S511.03[农业科学—作物学] S334