不同抗根肿病位点对油菜的抗病性、农艺性状及产量的影响

doi:10.14088/j.cnki.issn0439-8114.2025.03.012

湖北农业科学 ›› 2025, Vol. 64 ›› Issue (3): 74-78.doi: 10.14088/j.cnki.issn0439-8114.2025.03.012

不同抗根肿病位点对油菜的抗病性、农艺性状及产量的影响

姜成红, 周元委, 陈俊丞, 李双华, 李建民, 潘龙其

宜昌市农业科学研究院,湖北宜昌 443000

收稿日期:2024-08-27 发布日期:2025-04-17
通讯作者: 潘龙其(1988-),男,甘肃天水人,农艺师,硕士,主要从事农作物病虫害抗性鉴定和植保观测监测工作,(电话)13545855299(电子信箱)gsaupanlongqi@126.com。
作者简介:姜成红(1990-),男,湖北红安人,农艺师,硕士,主要从事粮油作物植物保护研究工作,(电话)13886726395(电子信箱)1148236339@qq.com。
基金资助:
国家植物保护枝江观测实验站项目(NAES022PP022); 国家油菜产业技术体系建设专项(CARS-12); 湖北省2023—2024年农业科技创新能力项目

The impact of different clubroot resistance loci on disease resistance, agronomic traits and yield of rapeseed

JIANG Cheng-hong, ZHOU Yuan-wei, CHEN Jun-cheng, LI Shuang-hua, LI Jian-min, PAN Long-qi

Yichang Academy of Agricultural Sciences, Yichang 443000, Hubei, China

Received:2024-08-27 Online:2025-04-17

摘要/Abstract

摘要： 以包含抗病和对应同质不抗病的6对油菜组合为材料进行田间试验,研究抗病位点CRa/CRb和PbBa8.1导入到不同材料表现出的抗病差异性、成熟期农艺性状和产量。结果表明,6对油菜组合中所有不抗病材料的发病率均在97.8%以上,病情指数均在95.6以上;导入CRa/CRb抗病材料的发病率和病情指数较高,发病率分别为96.7%、86.0%、82.2%,病情指数分别为85.9、67.7、36.0,但均低于对应的同质不抗病材料;导入PbBa8.1抗病位点的抗病材料对根肿病抗性表现较好,发病率分别为10.6%、1.8%、5.8%,病情指数分别为8.0、1.5、4.7。油菜材料导入CRa/CRb抗根肿病位点后的株高、有效分枝部位、单株有效角果数和每角果粒数等农艺性状比导入PbBa8.1抗根肿病位点有所降低,最终影响其产量。

关键词: 油菜, 根肿病, 抗病位点, 农艺性状, 抗病性, 产量

Abstract: The field experiments were conducted by using 6 pairs of rapeseed combinations with resistance and corresponding non-resistant isogenic lines to investigate the differences in disease resistance, agronomic traits and yield when resistance loci CRa/CRb and PbBa8.1 were introgressed into different varieties (materials). The results showed that the incidence rate of all non-disease resistant materials in 6 pairs of rapeseed combinations was more than 97.8%, and the disease index was over 95.6. The incidence and disease index of the materials introgressed with the CRa/CRb resistance locus were higher, the incidence was 96.7%, 86.0% and 82.2%, respectively, and the disease index was 85.9, 67.7 and 36.0, respectively, but both were lower than those of the corresponding non-resistant isogenic materials; the materials introgressed with the PbBa8.1 resistance locus exhibited better resistance to clubroot, the incidence was 10.6%, 1.8% and 5.8%, respectively, and the disease index was 8.0, 1.5 and 4.7, respectively. The agronomic traits of rapeseed introgressed with the CRa/CRb resistance locus, such as plant height, effective branch location, effective number of pods per plant and number of kernels per pod, were lower than those of rapeseed introgressed with the PbBa8.1 resistance locus, which ultimately affected the yield.

Key words: rapeseed, clubroot, resistance locus, agronomic traits, disease resistance, yield

中图分类号:

S435.654

姜成红, 周元委, 陈俊丞, 李双华, 李建民, 潘龙其. 不同抗根肿病位点对油菜的抗病性、农艺性状及产量的影响[J]. 湖北农业科学, 2025, 64(3): 74-78.

JIANG Cheng-hong, ZHOU Yuan-wei, CHEN Jun-cheng, LI Shuang-hua, LI Jian-min, PAN Long-qi. The impact of different clubroot resistance loci on disease resistance, agronomic traits and yield of rapeseed[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(3): 74-78.

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不同抗根肿病位点对油菜的抗病性、农艺性状及产量的影响

The impact of different clubroot resistance loci on disease resistance, agronomic traits and yield of rapeseed

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