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中国农学通报

中国农学通报 ›› 2025, Vol. 41 ›› Issue (29): 1-6.doi: 10.11924/j.issn.1000-6850.casb2025-0004

• 农学·农业基础科学 •    下一篇

杂交稻新品种‘两优2189’特征特性及丰产稳产适应性探究

陈庆明(), 申关望(), 祁玉良, 陆云, 余林闯, 余新春, 扶定, 沈光辉, 霍二伟, 徐士库, 常幸远, 张凯璇   

  1. 信阳市农业科学院， 河南信阳 464000
  • 收稿日期:2025-01-10 修回日期:2025-03-15 出版日期:2025-10-15 发布日期:2025-10-22
  • 通讯作者:
    申关望，男，1981年出生，河南鹤壁人，副研究员，本科，主要从事水稻遗传育种与高产栽培研究。通信地址：464000 河南省信阳市浉河区民权南街20号 信阳市农业科学院，E-mail：。
  • 作者简介:

    陈庆明，男，1993年出生，河南息县人，助理研究员，硕士，主要从事水稻遗传育种与高产栽培研究。通信地址：464000 河南省信阳市浉河区民权南街20号 信阳市农业科学院，E-mail：。

  • 基金资助:
    河南省重点研发专项“优质高产绿色高效水稻新品种选育与应用”(231111110500); 河南省科技攻关“水稻优质抗病亲本创制与高产广适新品种选育应用”(252102110261); 国家现代农业产业技术体系建设专项资金“国家水稻产业技术体系信阳综合试验站”(CARS-01-90); 河南省农业产业技术体系建设专项资金“河南省水稻产业技术体系籼稻育种岗位”(HARS-22-03-G2)

Study on Characteristics and Adaptability of High yield and Stable yield in Hybrid Rice New Variety ‘Liangyou 2189’

CHEN Qingming(), SHEN Guanwang(), QI Yuliang, LU Yun, YU Linchuang, YU Xinchun, FU Ding, SHEN Guanghui, HUO Erwei, XU Shiku, CHANG Xingyuan, ZHANG Kaixuan   

  1. Xinyang Academy of Agricultural Sciences, Xinyang, Henan 464000
  • Received:2025-01-10 Revised:2025-03-15 Published:2025-10-15 Online:2025-10-22

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摘要：

为明确杂交稻新品种‘两优2189’的特征特性及其在生产中的应用前景，本研究以该品种2021—2022年河南省南部稻区中籼稻区域试验及2023年生产试验数据为基础，对其产量及构成要素进行相关分析和通径分析，并结合米质检测与抗性鉴定结果展开系统研究。结果表明，‘两优2189’在3年的试验中平均单产分别为9295.5 kg/hm2、9651.0 kg/hm2、9930.0 kg/hm2，均比对照品种增产，增产点率分别为87.5%、100%、100%；在2年区试产量变异系数分别为4.53%、9.12%，都小于对照品种；在3 a的试验中，高稳系数分别为89.85%、87.23%、92.75%，均高于对照品种；产量三要素中，变异系数呈现出：千粒重<穗粒数<有效穗，千粒重最稳定，直接效应起主要作用，有效穗的变化幅度最大，对产量的贡献率最大。在实际生产中，‘两优2189’要实现高产关键要加大基本苗数，提高分蘖成穗率，实现多穗，同时兼顾穗粒数和千粒重，协调好三者之间的关系。综上，‘两优2189’是一个丰产稳产性较好的新品种，可在豫南及相似生态区域大面积推广种植。

关键词: 杂交籼稻, ‘两优2189’, 特征特性, 丰产稳产性, 变异系数, 高稳系数, 产量

Abstract:

In order to clarify the characteristics of the new hybrid rice variety ‘Liangyou 2189’ and its application prospect in production, this study used the data of regional test of middle indica rice in the southern rice area of Henan Province from 2021 to 2022 and the production test data in 2023. The correlation analysis and path analysis of its yield and components were carried out, and the results of rice quality detection and resistance identification were systematically studied. The results showed that the average yield of ‘Liangyou 2189’ in the three-year test were 9295.5 kg/hm2, 9651.0 kg/hm2, and 9930.0 kg/hm2, which increased yields compared with the control variety, and the yield increase rate were 87.5%, 100%, and 100%. The variation coefficients of the yield in two-year regional test were 4.53% and 9.12%, both smaller than the control variety. The high stability coefficients in three-year test were 89.85%, 87.23%, and 92.75%, all higher than the control variety. Among the three elements of yield, the variation coefficient showed: thousand grain weight<grain number per<effective spike number. Thousand grain weight was the most stable, the direct effect played a major role, and effective spike number had the largest variation range, the contribution rate to yield was the largest. In actual production, the key of achieving high yield is to increase the number of basic seedlings, increase the rate of tillers, achieve multiple panicles, take into account the number of grains per panicle and 1000-grain weight, and coordinate the relationship between the three. In summary, the ‘Liangyou 2189’ is a new variety with high yield and stable yield, which can be widely promoted and planted in southern Henan Province and similar ecological areas.

Key words: hybrid indica rice, ‘Liangyou 2189’, characteristics, high yield and stable yield, variation coefficient, high stability coefficient, yield