| 60Coγ射线对杨树种子的辐射效应 |
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| 引用本文： | 王瑞静,王瑞文,沈宝仙. 60Coγ射线对杨树种子的辐射效应[J]. 核农学报, 2009, 23(5): 762-765 |
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| 作者姓名： | 王瑞静 王瑞文 沈宝仙 |
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| 作者单位： | 华中农业大学园艺林学学院,湖北,武汉,430070 |
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| 摘 要： | 以60Co γ射线辐照杨树种子,测定不同剂量对4个杨树品种M1代的影响。结果表明：辐照处理后，各品种杨树种子的萌发和成苗明显受到抑制。不同剂量处理间根长的差异是显著的，随着剂量增加，主根生长呈明显下降趋势;幼苗高度差异不显著。鲁山杨、I-69杨和I-72杨种子的半致死剂量为200Gy，圣山杨种子的半致死剂量为250Gy。
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| 关 键 词： | 60Co γ射线 杨树 种子 辐照 |
| 收稿时间： | 2009-12-31 |
| 修稿时间： | 2009-12-31 |
Effect of 60Co γ-Rays Irradiation on Poplar Seeds |
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| WANG Rui-jing,WANG Rui-wen,SHEN Bao-xian. Effect of 60Co γ-Rays Irradiation on Poplar Seeds[J]. Acta Agriculturae Nucleatae Sinica, 2009, 23(5): 762-765 |
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| Authors: | WANG Rui-jing WANG Rui-wen SHEN Bao-xian |
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| Affiliation: | College of Horticulture and Forestry Sciences;Huazhong Agricultural University;Hubei;Wuhan 430070 |
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| Abstract: | Four varieties seeds of poplar were irradiated by different dose of 60Co ray, and the effect irradiation on the M1 generation were investigated. The results indicated that after irradiation, the germinate and seedling were significantly inhibited. Among the different dose treatments, the length of roots were different significantly, and the length of roots decreased with the irradiation dose increased. The effect on seedling height was not obvious. Semi-lethal dose of Populus × liaoningensis Z. Wang et H. D. Chen cv. nov, Populus × deltoides cv. Lux ex. I-69/55 and Populus × euramericana cv. San Martino ex. I-72/58 was 200Gy , Semi-lethal dose of Populus × gaixianesis Z.Wang et H. D. Chen sp.cv was 250Gy. |
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| Keywords: | poplar seeds irradiation |
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