湖北农业科学 ›› 2022, Vol. 61 ›› Issue (24): 11-14.doi: 10.14088/j.cnki.issn0439-8114.2022.24.002

• 育种·栽培 • 上一篇    下一篇

37份高结实四倍体水稻结实率研究

郑明1,2, 宋兆建3, 张献华1,3, 刘育华1, 何玉池3, 隗志松1, 陈柏林1, 朱永生4, 曹国长1, 刘华林2, 王群1, 王庆飞1, 陈龙1, 汪德龙1, 蔡得田1,3   

  1. 1.武汉多倍体生物科技有限公司,武汉 430345;
    2.孝感市农业科学院,湖北 孝感 432000;
    3.湖北大学生命科学院,武汉 430062;
    4.武汉市农业科学院,武汉 430345
  • 收稿日期:2022-07-22 出版日期:2022-12-25 发布日期:2023-01-18
  • 通讯作者: 蔡得田(1952-),男,教授,硕士,主要从事遗传育种方面的研究,(电子信箱)dtcai8866@163.com。
  • 作者简介:郑明(1966-),男,湖北孝感人,正高职高级农艺师,农业推广硕士,主要从事水稻育种和栽培研究工作,(电话)13476545967(电子信箱)z-m1-9-6-6@163.com。
  • 基金资助:
    多倍体水稻研发及应用项目[2017020899010100; 武科计(2011)150号]; 湖北省农业科学院与孝感市人民政府科技合作共建协议[孝农业文(2011)60号]; 湖北省农业科技创新中心资助项目(2007-620-001-03); 湖北省农业厅优质稻研究开发项目[鄂农函(2002)73号]

Study on the seed setting rate of 37 high seed setting tetraploid rice

ZHENG Ming1,2, SONG Zhao-jian3, ZHANG Xian-hua1,3, LIU Yu-hua1, HE Yu-chi3, KUI Zhi-song1, CHEN Bo-lin1, ZHU Yong-sheng4, CAO Guo-chang1, LIU Hua-lin2, WANG Qun1, WANG Qing-fei1, CHEN Long1, WANG De-long1, CAI De-tian1,3   

  1. 1. Wuhan Polyploid Biotechnology Co. Ltd.,Wuhan 430345,China;
    2. Xiaogan Academy of Agricultural Sciences,Xiaogan 432000,Hubei,China;
    3. School of Life Sciences,Hubei University,Wuhan 430062,China;
    4. Wuhan Academy of Agricultural Sciences,Wuhan 430345,China
  • Received:2022-07-22 Online:2022-12-25 Published:2023-01-18

摘要: 通过对37份高结实四倍体水稻结实率的统计分析,发现多倍体减数分裂稳定性(Polyploid meiosis stability,PMeS)的高结实特性能稳定遗传,所选不同株系的结实率在80%以上。因此,在四倍体水稻加代纯合的过程中,随着世代增加,向增加总粒数和实粒数方向加压,选择到理想稳定高结实材料是可能的,而秕粒数的增减成为四倍体水稻在湖北省田间选育的重要指标。在四倍体水稻加代纯合的过程中,试图从结实率提高方面继续加压选择,选育到更理想材料虽有可能,但其选择概率很小,尤其是快速选择到更理想材料有一定困难。为此,选育更应该放在综合性状的改良。

关键词: 四倍体水稻, 结实率, 选择

Abstract: Through the statistical analysis of the seed setting rate of 37 high seed setting tetraploid rice, it was found that the high seed setting characteristics of polyploid meiosis stability(PMeS) could be stably inherited, and the seed setting rate of the selected different lines was more than 80%. Therefore, in the process of homozygous addition of tetraploid rice, with the increase of generation, it was possible to select the ideal stable high-seeding material by increaseing the total number of grains and the number of filled grains, and the increase and decrease of the number of unfilled grains had become an important index for the field breeding of tetraploid rice in Hubei Province. In the process of homozygous addition of tetraploid rice, it was possible to continue pressure selection from the aspect of improving seed setting rate. Although it was possible to breed more ideal materials, the selection probability was very small, especially in the quick selection of more ideal materials. Therefore, the choice should be placed more on the improvement of comprehensive traits.

Key words: tetraploid rice, the seed setting rate, selection

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