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中国农学通报

中国农学通报 ›› 2022, Vol. 38 ›› Issue (36): 1-5.doi: 10.11924/j.issn.1000-6850.casb2022-0131

• 农学·农业基础科学 •    下一篇

多穗型两系杂交中稻新品种‘隆两优0078’的选育与应用

张稳1,2(), 彭既明2, 袁定阳2, 刘梓琦2, 唐自标2, 杨璐2, 杨峰2, 杨远柱3, 罗德强4, 李建武2, 彭锐2()   

  1. 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
  • 收稿日期:2022-03-03 修回日期:2022-06-05 出版日期:2022-12-25 发布日期:2023-01-17
  • 作者简介:

    张稳，男，1998年出生，湖南株洲人，在读硕士生，研究方向：为多穗型杂交水稻。通信地址：410125 湖南长沙芙蓉区农大路1号，Tel：18975391957，E-mail：。

  • 基金资助:
    “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)

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

ZHANG Wen1,2(), PENG Jiming2, YUAN Dingyang2, LIU Ziqi2, TANG Zibiao2, YANG Lu2, YANG Feng2, YANG Yuanzhu3, LUO Deqiang4, LI Jianwu2, PENG Rui2()   

  1. 1Hunan Agricultural University, Changsha 410125
    2Hunan Hybrid Rice Research Center, Changsha 410125
    3Hunan Yahua Seed Industry Research Institute, Changsha 410125
    4Guizhou Rice Research Institute, Guiyang 550016
  • Received:2022-03-03 Revised:2022-06-05 Online:2022-12-25 Published:2023-01-17

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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。

关键词: 多穗型, 杂交稻, 隆两优0078, 两系, 杂交育种

Abstract:

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 high-yielding cultivation and seed production were explored.

Key words: multi-panicle type, hybrid rice, ‘Long Liangyou 0078’, two-line, crossing breeding