| 李施蒙，杨广环，尼玛次仁，王晋雄.13 份油菜骨干亲本产量和品质性状配合力分析[J].广东农业科学,2022,49(7):8-15 |
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13 份油菜骨干亲本产量和品质性状配合力分析 |
| Analysis on Combining Ability of Yield and QualityCharacters of 13 Foundation Parents of Brassica napus |
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| DOI：10.16768/j.issn.1004-874X.2022.07.002 |
| 中文关键词: 西藏 甘蓝型油菜 骨干亲本 单株产量 品质 配合力 |
| 英文关键词: Tibet Brassica napus L. foundation parents yield per plant quality combining ability |
| 基金项目:西藏自治区重点研发及转化计划项目（XZ-2 019-NK-NS-007）；国家油菜产业技术体系拉萨综合试验站（CARS-13） |
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| 中文摘要: |
| 【目的】提高甘蓝型油菜产量及品质性状优势组合的选配效率，为西藏油菜现有资源的杂种优
势利用提供依据。【方法】以 13 份甘蓝型油菜自交系作亲本，按照不完全双列杂交设计组配 40 份杂交组合，
以油菜 3 个品质性状和单株产量为研究对象，分析各亲本的配合力和各性状的遗传力。【结果】在一般配合
力上，5 个父本按优劣顺序依次为希望 759>湘油 420= 京华 165>育苗 10>大地 95，8 个母本按优劣顺序依次为
04306-2>127025-3=158106-2=158112-3>08014-2>68-3= 年河 18>06034-3。单株产量特殊配合力最好的组合是
京华 165×年河 18（达 28.8798），组合京华 165×年河 18、湘油 420×158112-3 具有高产、优质的潜力；育苗
10×68-3、育苗 10×127025-3、湘油 420×06034-3 特殊配合力分别为 28.8316、25.3975、22.4819，具有产量优势。
广义遗传力以油酸含量最高、达 96.93%，单株产量最低、仅 56.09%。【结论】两个油菜骨干亲本希望 759、
04306-2 的一般配合力效应值排名最优，在油菜杂交组合的选配上可重点利用，其中含油量、蛋白质含量、油酸
含量 3 个品质性状可进行早期选择，而单株产量性状不宜早期选择。 |
| 英文摘要: |
| 【Objective】The study was carried out to improve the selection efficiency of dominant combinations of
yield and quality characters in Brassica napus, and to provide a basis for the utilization of heterosis of rape resources in
Tibet.【Method】13 inbred lines of B. napus were used as parents and 40 hybrid combinations were combined according
to incomplete diallel cross design. With 3 quality traits and yield per plant as research objects the combining ability and
heritability of each parent were analyzed.【Result】The general combining ability 5 male parents ranked as: Xiwang 759
> Xiangyou 420 = Jinghua 165 > Yumiao 10 >Dadi 95, while that of 8 female parents ranked as: 04306-2 > 127025-3 =
158106-2 = 158112-3 > 08014-2 > 68-3 = Nianhe 18 > 06034-3. The combination with the best special combining ability
for yield per plant was Jinghua 165×Nianhe 18 (28.8798). The combinations of Jinghua 165×Nianhe 18 and Xiangyou
420×158112-3 had the potential of high yield and high quality. And the combinations of Yumiao 10×68-3, Yumiao
10×127025-3, Xiangyou 420×06034-3, with SCA values of 28.8316, 25.3975 and 22.4819 respectively, had yield advantage. The broad heritability of oleic acid content was the highest, up to 96.93%; while yield per plant was the lowest, only
56.09%.【Conclusion】The two foundation parents Xiwang 759 and 04306-2 with the optimal general combination ability
could be mainly used in the selection of hybrid combinations of B. napus. In the process of breeding, the three quality traits
of oil content, protein content and oleic acid could be selected early, while the trait of yield per plant was not suitable for early
selection. |
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