| 碳离子不同入射深度上番茄种子的发芽率和染色体畸变 |
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| 引用本文： | 王菊芳,张莹.碳离子不同入射深度上番茄种子的发芽率和染色体畸变[J].贵州大学学报(自然科学版),2007,24(2):158-160. |
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| 作者姓名： | 王菊芳 张莹 |
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| 作者单位： | 中科院近代物理研究所,兰州,730000;北京林业大学园林学院,北京,100083 |
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| 基金项目： | 中国科学院"西部之光"人才培养计划 |
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| 摘 要： | 作者用碳离子束辐照多层重叠番茄种子的方法,研究了离子的入射深度与种子的发芽率和根尖细胞染色体畸变水平之间的关系,结果表明:置于离子束通道部位的种子发芽率较高,染色体畸变水平则较低;置于离子射程末端Bragg峰区的种子发芽率较低,染色体畸变水平则较高。这些趋势与离子在入射深度上的物理剂量分布特点相一致。
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| 关 键 词： | 碳离子 番茄种子 发芽率 染色体畸变 |
| 文章编号： | 1000-5269（2007）02-0158-03 |
| 修稿时间： | 2006-12-28 |
The germination fraction and chromosome aberration of tomato seeds on the Injection depth of carbon ions |
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| WANG Ju-fang,ZHANG Ying.The germination fraction and chromosome aberration of tomato seeds on the Injection depth of carbon ions[J].Journal of Guizhou University(Natural Science),2007,24(2):158-160. |
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| Authors: | WANG Ju-fang ZHANG Ying |
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| Institution: | 1. Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2. Beijing Forestry University, Beijing 100083 ,China |
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| Abstract: | The relation between the injection depth and germination fraction,chromosome aberration of root cells were investigated by exposure the superposed tomato seeds to carbon ions.The results show that on the entrance of the beam the germination fraction is high but the chromosome aberration level is low.On the Bragg peak the germination fraction is low but the chromosome aberration level is high.These results are consistent with the distribution of the physical depth dose profile of carbon ions. |
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| Keywords: | carbon ions tomato seeds germination fraction chromosome aberration |
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