多穗型两系杂交中稻新品种隆两优0078的选育与应用  

A New Two-line Hybrid Rice Variety‘Long Liangyou 0078’of Multi-panicle Type:Breeding and Application

作　　者：张稳 彭既明[2] 袁定阳[2] 刘梓琦 唐自标[2] 杨璐 杨峰[2] 杨远柱[3] 罗德强 李建武[2] 彭锐[2] ZHANG Wen;PENG Jiming;YUAN Dingyang;LIU Ziqi;TANG Zibiao;YANG Lu;YANG Feng;YANG Yuanzhu;LUO Deqiang;LI Jianwu;PENG Rui(Hunan Agricultural University,Changsha 410125;Hunan Hybrid Rice Research Center,Changsha 410125;Hunan Yahua Seed Industry Research Institute,Changsha 410125;Guizhou Rice Research Institute,Guiyang 550016)

机构地区：[1]湖南农业大学,长沙410125 [2]湖南杂交水稻研究中心,长沙410125 [3]湖南亚华种业科学研究院,长沙410125 [4]贵州省水稻研究所,贵阳550016

出　　处：《中国农学通报》2022年第36期1-5,共5页Chinese Agricultural Science Bulletin

基　　金：“十三五”国家重点研发计划项目“水稻杂种优势利用技术与强优势杂交种创制”(2016YFD0101100);课题三“长江中下游一季稻杂种优势利用技术与强优势杂交种创制”(2016YFD0101103);湖南省财政重大专项“湖南省超级杂交稻种三产四丰产工程”(湘财农指[2017]118号);湖南杂交水稻研究中心科研创新基金项目“一个新的多分蘖基因的定位”(YB201905)。

摘　　要：“多穗型超级杂交稻”是一个新的育种模型,它要求中籼品种的有效穗数高于区试对照品种10%以上。本研究选用优异亲本,通过杂交育种方法,选育成强分蘖两系恢复系‘10P50’,用其与两系不育系‘隆科638S’配组,选育出多穗型两系杂交中籼稻新品种‘隆两优0078’,在2019—2020年区试中,有效穗两年平均比对照‘丰两优4号’增加15.4%,且结实率高、稻瘟病和白叶枯病抗性好;分别在海南三亚、湖南长沙和贵州兴义进行了该品种的高产示范,探索出配套的高产栽培技术;在海南三亚和湖南长沙进行了该品种的制种技术探索,为该品种的大面积推广储备了行之有效的种子生产技术。Multi-panicle Type Super Hybrid Rice Breeding is a new breeding model,and it requires that the medium-maturing indica rice variety should have effective panicles 10.0%more than that of the check variety.New R-line‘10P50’was bred through the crossing breeding method with excellent germplasm resources.Then,a new two-line combination,‘Long Liangyou 0078’,was bred with R-line‘10P50’and S-line‘Long Ke 638S’.The effective panicle number of this combination was 15.4%higher than that of the check variety averagely in the national rice trial in 2019 and 2020,and it had a high seed setting rate and strong resistance to rice blast and bacterial leaf blight.The high-yielding demonstrations were carried out in Saya City of Hainan Province,Changsha City of Hunan Province and Xingyi City of Guizhou Province.Its techniques of highyielding cultivation and seed production were explored.

关 键 词：多穗型 杂交稻 隆两优0078 两系 杂交育种 

分 类 号：S334[农业科学—作物遗传育种]