| 苜蓿种子空间诱变生物学效应研究初报(英文) |
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| 引用本文： | 任卫波,赵亮,王蜜,陈立波,郭慧琴.苜蓿种子空间诱变生物学效应研究初报(英文)[J].农业科学与技术,2008,9(4):51-55. |
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| 作者姓名： | 任卫波 赵亮 王蜜 陈立波 郭慧琴 |
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| 作者单位： | 中国农业科学院草原研究所;内蒙古农业大学 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项资金项目(中国农业科学院草原研究所)，国家科技支撑计划重点项目 |
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| 摘 要： | Objective] The study aimed to understand the mutagenic effects of space flight on alfalfa seeds.Method] Seeds of three lines of alfalfa were carried into orbit by the satellite ’Shijian-8’ for space fight,the indices including seed germination rate,plant height and growth rate,were measured after the seeds been retrieved.Result] Remarkable mutagenic effects occurred on the flight seeds,which were mainly presented by abnormal cotyledon,extended variation range of plant height and growth rate.Nineteen plants with increased plant height were preliminarily screened from the T0 progenies,but whether the mutated trait could inherit should be confirmed in further study.Three flight lines of alfalfa are different in the percentages of abnormal cotyledon(10%-18%),variation range of plant height(increased 30%-150% compared to control),selected plant number with increased plant height(5-7 plants),suggesting that differences exits between the three lines in mutation efficiency.Conclusion] Valuable mutated materials could be obtained by space flight and applied in modern agriculture.
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| 关 键 词： | Space-induced mutation Medicago sativa L. Mutagenic effect |
Preliminary Study on the Mutagenic Effects of Space Flight on Alfalfa Seeds |
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| REN Wei-bo,ZHAO Liang,WANG Mi,CHEN Li-bo,GUO Hui-qin.Preliminary Study on the Mutagenic Effects of Space Flight on Alfalfa Seeds[J].Agricultural Science ＆ Technology,2008,9(4):51-55. |
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| Authors: | REN Wei-bo ZHAO Liang WANG Mi CHEN Li-bo GUO Hui-qin |
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| Institution: | 1.Grassland Research Institute,Chinese Academy of Agricultural Sciences,Huhhot 010010;2.Inner Mongolia Agricultural University,Huhhot 010010 |
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| Abstract: | Objective] The study aimed to understand the mutagenic effects of space flight on alfalfa seeds. Method] Seeds of three lines of alfalfa were carried into orbit by the satellite 'Shijian-8' for space fight, the indices including seed germination rate, plant height and growth rate, were measured after the seeds been retrieved. Result] Remarkable mutagenic effects occurred on the flight seeds, which were mainly presented by abnormal cotyledon, extended variation range of plant height and growth rate. Nineteen plants with increased plant height were preliminarily screened from the T0 progenies, but whether the mutated trait could inherit should be confirmed in further study. Three flight lines of alfalfa are different in the percentages of abnormal cotyledon (10%-18%), variation range of plant height (increased 30%-150% compared to control), selected plant number with increased plant height(5-7 plants), suggesting that differences exits between the three lines in mutation efficiency.Conclusion] Valuable mutated materials could be obtained by space flight and applied in modern agriculture. |
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| Keywords: | Space-induced mutation Medicago sativa L Mutagenic effect |
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