| 6个一品红品种对60Coγ辐照敏感性研究 |
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| 引用本文： | 苏家乐,李畅,姜维华,刘晓青,陈璐.6个一品红品种对60Coγ辐照敏感性研究[J].核农学报,2009,23(6):990-993. |
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| 作者姓名： | 苏家乐 李畅 姜维华 刘晓青 陈璐 |
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| 作者单位： | 江苏省农业科学院园艺研究所,江苏,南京,210014 |
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| 基金项目： | 江苏省科技基础设施建设计划，江苏省农业三项工程项目 |
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| 摘 要： | 采用10、20、30、40 Gy的60Co γ射线辐照6个一品红品种的扦插苗，观测各处理植株的成活率及植株生长情况，并进行回归模型分析。结果表明：辐照使一品红植株的生长受到抑制，并且剂量越高抑制效应越明显；植株的存活率、株高、叶长、叶宽、叶面积均与辐照剂量呈显著负相关；不同一品红品种的辐照敏感性存在差异，其半致死剂量为21.94 ~ 28.71 Gy。
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| 关 键 词： | 一品红 60Co γ辐照 半致死剂量 辐照敏感性 |
| 收稿时间： | 2009-05-25 |
Irradiation Sensitivity of 6 Cultivars in Euphorbia pulcherrima |
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| SU Jia-le,LI Chang,JIANG Wei-hua,LIU Xiao-qing,CHEN Lu.Irradiation Sensitivity of 6 Cultivars in Euphorbia pulcherrima[J].Acta Agriculturae Nucleatae Sinica,2009,23(6):990-993. |
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| Authors: | SU Jia-le LI Chang JIANG Wei-hua LIU Xiao-qing CHEN Lu |
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| Institution: | Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014 |
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| Abstract: | The cuttings seedlings of 6 Euphorbia pulcherrima cultivars were irradiated by 60Coγ-rays, and the effects on the survival rate and plant growth were investigated. Then the regression models were used to analyze relationship between the characters change and doses. The results showed that the growth of Euphorbia pulcherrima were decreased after irradiation and the effect became stronger with the increase of irradiation dose. The indexes of survival rate, plant height, leaf length, leaf width and leaf area were all showed significant negative correlation with the irradiation doses. The medial lethal doses (LD50) of 6 Euphorbia pulcherrima cultivars were from 21.94 Gy to 28.71 Gy, and the radiosensitivity was different among tcultivas. |
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| Keywords: | Euphorbia pulcherrima medial lethal dose radiosensitivity |
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