| 卫星搭载对紫花苜蓿当代植株生物量的影响(英文) |
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| 引用本文： | 任卫波,赵亮,王蜜,陈立波,郭慧琴.卫星搭载对紫花苜蓿当代植株生物量的影响(英文)[J].农业科学与技术,2008,9(5):78-80. |
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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
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国家科技支撑计划重点项目
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| 摘 要： | Objective] The aim of this study was to investigate the effect of space flight factors on plant biomass in the generation of alfalfa carried by the satellite.Method]Seeds from three lines of alfalfa were carried by the seed-breeding satellite Shijian-8.After the satellite returned to the ground,stem diameter,primary branch number and current-year individual biomass of alfalfa were studied.Result]After space flight,primary branch number and current-year individual biomass of alfalfa increased significantly,while the stem diameter had no significant change.Using the value over(the mean value of control + three standard deviation)as a criterion to screen,the variants with enlarged stem diameter,increased primary branch number and individual biomass was two,five and twelve respectively.Conclusion]The obtained variants can be used in the variety improvement of alfalfa and its new variety breeding,but whether its favorable variation can inherit stably to the progenies needs further study.
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| 关 键 词： | Space mutation Alfalfa Individual biomass |
Effect of Space Flight Factors on Plant Biomass Developed from Alfalfa Seeds Carried by the Satellite |
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| REN Wei-bo,ZHAO Liang,WANG Mi,CHEN Li-bo,GUO Hui-qin.Effect of Space Flight Factors on Plant Biomass Developed from Alfalfa Seeds Carried by the Satellite[J].Agricultural Science ＆ Technology,2008,9(5):78-80. |
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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 of Chinese Academy of Agricultural Sciences,Hohhot 010010;2.Inner Mongolia Agricultural University,Hohhot 010018 |
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| Abstract: | Objective] The aim of this study was to investigate the effect of space flight factors on plant biomass in the generation of alfalfa carried by the satellite. Method] Seeds from three lines of alfalfa were carried by the seed-breeding satellite Shijian-8. After the satellite returned to the ground, stem diameter, primary branch number and current-year individual biomass of alfalfa were studied. Result] After space flight, primary branch number and current-year individual biomass of alfalfa increased significantly, while the stem diameter had no significant change. Using the value over(the mean value of control + three standard deviation) as a criterion to screen, the variants with enlarged stem diameter, increased primary branch number and individual biomass was two, five and twelve respectively. Conclusion] The obtained variants can be used in the variety improvement of alfalfa and its new variety breeding, but whether its favorable variation can inherit stably to the progenies needs further study. |
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| Keywords: | Space mutation Alfalfa Individual biomass |
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