| 通玉179六世代和DH世代4个穗部性状对比分析研究 |
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| 引用本文： | 李忠南,王越人,车丽梅,邬生辉,曲海涛,宋涛,李福林,李光发.通玉179六世代和DH世代4个穗部性状对比分析研究[J].作物杂志,2022,38(2):64-39. |
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| 作者姓名： | 李忠南 王越人 车丽梅 邬生辉 曲海涛 宋涛 李福林 李光发 |
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| 作者单位： | 1吉林省农业技术推广总站,130033,吉林长春2通化市农业科学研究院,135007,吉林梅河口 |
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| 基金项目： | 通化市人才团队建设项目(2019-2021);通化市科技发展计划项目(2018XM09);吉林省农业重点研发项目(20200402022NC) |
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| 摘 要： | 对穗长平均优势较大的通玉179的F1（PH6WC×29,Reid）进行了单倍体自然加倍规模化育种,并组建六世代群体,就穗长、行粒数、穗行数、穗粒数进行了六世代和DH世代最适模型的遗传参数分析。结果表明,六世代分离世代穗长多基因遗传力为0;行粒数、穗行数和穗粒数主基因遗传力范围分别为56.80%~97.82%、0~58.59%和65.08%~93.70%。DH世代穗长、行粒数、穗行数和穗粒数主基因遗传力分别为99.21%、96.35%、98.24%和93.36%。以上说明常规育种母本系选育应以行粒数为首要目标,从而达到最大穗粒数。DH育种应以穗长为目标,同时兼顾穗行数,有效实现最大穗粒数的育种目标。
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| 关 键 词： | 玉米 通玉179 穗部性状 六世代 DH世代 遗传参数 |
| 收稿时间： | 2021-01-22 |
Comparative Analysis and Research of Four Ear Traits of Six Generations and DH Generation of Tongyu 179 |
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| Li Zhongnan,Wang Yueren,Che Limei,Wu Shenghui,Qu Haitao,Song Tao,Li Fulin,Li Guangfa.Comparative Analysis and Research of Four Ear Traits of Six Generations and DH Generation of Tongyu 179[J].Crops,2022,38(2):64-39. |
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| Authors: | Li Zhongnan Wang Yueren Che Limei Wu Shenghui Qu Haitao Song Tao Li Fulin Li Guangfa |
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| Institution: | 1Agricultural and Technology Extension Station of Jilin Province, Changchun 130033, Jilin, China2Tonghua Academy of Agricultural Sciences, Meihekou 135007, Jilin, China |
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| Abstract: | F1 (PH6WC×29, Reid) with higher average ear length advantage of Tongyu 179 was selected for haploid natural doubling large-scale breeding, and the six generation populations were established. The genetic parameters of the optimal genetic model for ear length, grain number per row, row number per ear and grain number per ear in six generations and DH generation were analyzed. The results showed that the polygenic inheritance of the ear length was 0 and the main genetic inheritance of grain number per row, row number per ear and grain number per ear were 56.80%-97.82%, 0-58.59% and 65.08%-93.70%, respectively, in the sixth generation. The heritability of the main genes for ear length, grain number per row, row number per ear and grain number per ear were 99.21%, 96.35%, 98.24% and 93.36% in the DH generation, respectively. The results showed that the grain number per row should be the primary goal when breeding female parent lines in conventional breeding in order to achieve the maximum grain number per ear. DH breeding should aim at ear length and at the same time take into account row number per ear in order to achieve the goal of the maximum grain number per ear more effectively. |
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| Keywords: | Maize Tongyu 179 Ear traits Six generations DH generation Genetic parameter |
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