Abstract: Based on the data from the regional（2019—2021）and production trials（2020—2021）of wheat varieties resistant to Fusarium head blight in Henan Province，this study systematically analyzed the high and stable yield performance of Zhengmai 9134 and the relationship between yield and its components.Meanwhile，by using the 660K wheat chip and 0.1K functional chip，the genetic characteristics were deeply analyzed to provide a theoretical basis for its production application and parental utilization.The results showed that Zhengmai 9134 had good characteristics with high and stable yield and wide adaptability.Compared with the control variety Bainong 207，the average yield of Zhengmai 9134 reached 7 383.5 kg/ha，with increase of 6.63%；the average high stability coefficient of Zhengmai 9134 was 82.01%，with increase of 5.66 percentage points；and the average adaptation degree of Zhengmai 9134 was 78.31%，much higher than the control.Through the correlation analysis and path analysis of yield and its three components，it was found that the effective spike number had the highest direct effect on yield，followed by the thousand‐grain weight and grain number per spike.The genetic contribution of Zhengmai 0943 to Zhengmai 9134 was slightly greater than that of Xinmai 22，and the genetic transmission rates were 51.07% and 48.00%，respectively.In addition，the genetic contribution of the parents of Zhengmai 9134 had genome‐specific differences. Among them，Xinmai 22 had a higher genetic transmission rate at the A and D genome levels，which were 65.19% and 68.07%，respectively，while Zhengmai 0943 had a higher genetic transmission rate at the B genome level，which was 69. 85%. Zhengmai 9134 aggregated multiple important functional genes，including five QTL loci with resistance to stripe rust （Yr29，QYrqin.nwafu‑2AL，QYrqin.nwafu‑2BL，QYr.nwafu‑3BS and QYr.nwafu‑4BL），two genes with resistance to leaf rust（Lr37and Lr67），two loci with resistance to Fusarium head blight（QFhb.hbaas‑5AS and QFhb.caas‑5AL），two grain weight genes（Tabas1 and TaGW2‑6A），and one gene related to grain size（QGl‑4A）.

Key words: Zhengmai 9134, High yield, Stable yield, Yield, Disease resistance genes, Genetic characteristics

摘要： 基于2019—2021年河南省小麦抗赤霉病组区域试验和生产试验数据（2020—2021年），系统分析郑麦9134的高产稳产特性及产量构成因素与产量的关系，同时利用小麦660K芯片和0.1K功能芯片，深入解析该品种的遗传特性，为其生产应用和亲本利用提供理论依据。结果表明，郑麦9134具有较好的高产性、稳产性和广适性。与对照品种百农207相比，其平均产量达7 383.5 kg/hm2，增产6.63%；高稳系数为82.01%，提高5.66百分点；且适应度达78.31%，远高于对照。通过产量构成三因素与产量的相关性分析和通径分析发现，有效穗数对产量的直接作用最大，其次是千粒质量和穗粒数。郑麦0943对郑麦9134的遗传贡献略大于新麦22，遗传传递率分别为51.07%和48.00%，且郑麦9134的双亲遗传贡献存在基因组差异。其中，新麦22在A和D基因组上的遗传传递率较高，分别为65.19%和68.07%；而郑麦0943则在B基因组上的遗传传递率较高，为69.85%。郑麦9134聚合了多个重要功能基因，包括5个抗条锈病QTL位点（Yr29、QYrqin.nwafu-2AL、QYrqin.nwafu-2BL、QYr.nwafu-3BS和QYr.nwafu-4BL）、2个抗叶锈病基因（Lr37和Lr67）、2 个抗赤霉病位点（QFhb.hbaas-5AS和QFhb.caas-5AL）、2 个粒质量基因（Tabas1和TaGW2-6A）和1个籽粒大小基因（QGl-4A）。

关键词: 郑麦9134, 高产, 稳产, 产量, 抗病基因, 遗传特性