大穗型早籼不育系紫兴05A的选育  

Breeding of Large-panicle Early Indica CMS Line Zixing05A

作　　者：富昊伟[1] 李友发[1] 舒庆尧[2] 

机构地区：[1]嘉兴市农业科学院,浙江嘉兴314016 [2]浙江大学原子能核农业科学研究所,浙江杭州310029

出　　处：《杂交水稻》2006年第6期27-28,55,共3页Hybrid Rice

基　　金：浙江省重大项目"8812"计划(001112032-6)资助;浙江省嘉兴攻关项目(20040603)

摘　　要：紫兴05A是以野败型籼稻不育系嘉浙A为母本,嘉浙B/嘉红B的F4代优质株系为父本杂交,经连续回交转育而成的大穗型早籼不育系。其不育株率达到100%,花粉不育度99.99%,套袋自交不育度99.94%,具有大穗、米质较优、配合力强、中抗稻瘟病等特点。2005年通过浙江省科技厅技术鉴定。Zixing 05A is a new indica CMS line with large panicles and good quality. It is developed by crossing Jiazhe A to a selected F4 plant from the cross of Jiazhe B/Jiahong B, followed by successively backcrossing to the corresponding selected paternal plants. It has a complete male sterility with 100% of sterile plants, 99.98% of pollen sterility and 99.94% of spikelet sterility and is characteristic of large panicles, better grain quality, high combining ability and medium blast resistance. In 2005, it was technically identified in Zhejiang Province.

关 键 词：杂交水稻 不育系 紫兴05A 大穗 选育 

分 类 号：S511.035[农业科学—作物学] S334