| 小偃麦与中间偃麦草杂交不亲合性和不育性的探讨 |
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| 引用本文： | 李春宇,周 璇,闫小丹,等.小偃麦与中间偃麦草杂交不亲合性和不育性的探讨[J].黑龙江农业科学,2014(5):1-6. |
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| 作者姓名： | 李春宇 周 璇 闫小丹 等 |
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| 作者单位： | [1]哈尔滨师范大学生命科学与技术学院／黑龙江省分子细胞遗传与遗传育种重点实验室,黑龙江哈尔滨150025 [2]黑龙江省农业科学院作物育种研究所,黑龙江哈尔滨150086 |
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| 基金项目： | 国家高技术研究发展计划（863计划）资助项目（2011AA10010205）;黑龙江省教育厅科学技术研究资助项目（12531198） |
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| 摘 要： | 远缘杂交遇到的关键问题是可交配性和不育性,为深入了解远缘杂交的可交配性和不育性,探讨了小偃麦与中间偃麦草杂交当代的可交配性和F1~F4的不育性表现。小偃麦与中间偃麦草杂交当代的结实率为10%~39%,F1当年不结实,二至五年生结少量种子,结实率有逐年恢复的倾向;F2~F5分离世代不同类型结实率不同,普通小麦类型、小偃麦类型结实率可达70%~100%,中间偃麦草类型40%~50%,种子饱满度逐代改进。
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| 关 键 词： | 远缘杂交 小偃麦 中间偃麦草 不育性 |
Discussion of Incompatibility and Sterility on Hybridization Between Trititrigia and Thinopyrum intermedium |
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| LI Chun-yu,ZHOU Xuan,YAN Xiao-danI,ZHAO Hal-bin,LI Ji-lin,ZHANG Yan-ming.Discussion of Incompatibility and Sterility on Hybridization Between Trititrigia and Thinopyrum intermedium[J].Heilongjiang Agricultural Science,2014(5):1-6. |
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| Authors: | LI Chun-yu ZHOU Xuan YAN Xiao-danI ZHAO Hal-bin LI Ji-lin ZHANG Yan-ming |
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| Institution: | 1. Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Prov- ince/College of Life Science and Technology, Harbin Normal University, Harbin, Heilongjiang 150025 ; 2. Institute of Crop Breeding, Heilongjinag Academy of Agricultural Sciences, Harbin, Heilongjiang 150086) |
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| Abstract: | The key problem which distant hybridization encountered is crossability and sterility, for the irsight of that,the contemporary crossability and sterility expression of F1 -F4 of Trititrigia and Thinopyrum intermedium hybridization were discussed. Seed setting rate of contemporary hybrids for Trititrigia and Thinopyrum intermedium hybrids was 10%;39% ,F1 was sterility in the same year,and with a small amount seed for biennial to 5-year-old, seed setting rate had a tendency to gradually restore. The di（ferent types of hybrid had differ- ent seed setting rate for F2-F5 segregative generation, the seed setting rate of the type common wheat and Trititrigia could reach 70% - 100;, that of Thinopyrum intermediu., was 40% -50%, seed plumpness was gradually improved. |
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| Keywords: | distant hybridization Trititrigia Thinopyrum interrnedium sterility |
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