| 低能氮离子束注入马齿苋的生物学效应研究 |
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| 引用本文： | 代西梅,黄群策,黄延伟.低能氮离子束注入马齿苋的生物学效应研究[J].中国农学通报,2005,21(1):29-29. |
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| 作者姓名： | 代西梅 黄群策 黄延伟 |
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| 作者单位： | 郑州大学离子束生物工程省重点实验室,河南,郑州,450052 |
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| 基金项目： | 国家"十五"科技攻关项目(2001BA302B). |
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| 摘 要： | 对马齿苋种子进行了低能氮离子束注入处理并对其生物学效应进行了初步研究。研究结果表明，在一定剂量范围内通过离子注入提高了种子的萌发速率、发芽率，其中以剂量为1.5×1017N+/cm2的处理所表现的效应最显著。处理后的马齿苋植株的成活率明显高于对照，成活率曲线随剂量的增加呈先上升后下降再上升的“马鞍型”曲线。低能N+注入后，对幼苗的致死率也有所降低。由此可见，一定剂量范围内的低能N+ 注入会提高马齿苋种子的发芽率和成活率。
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| 关 键 词： | 低能氮离子注入 生物学效应 发芽率 成活率 |
| 修稿时间： | 2004年7月20日 |
Study on The Biological effects of Low Energy N+ Ion Implantation on Seeds of Portulaca oleracea L |
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| Dai ximei,Huang Qunce,Huang yanwei.Study on The Biological effects of Low Energy N+ Ion Implantation on Seeds of Portulaca oleracea L[J].Chinese Agricultural Science Bulletin,2005,21(1):29-29. |
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| Authors: | Dai ximei Huang Qunce Huang yanwei |
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| Institution: | (Provincial Key Laboratory of Ion Beam Bio-engineering ,Zhengzhou University, Zhengzhou 450052) |
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| Abstract: | Biological effects of Portulaca oleracea L after ion beam implantation of low energy N+ were studied. The results show that the budding speed and budding rate increase by implanting treatment. It is most notable at the dosage 1.5×1017N+/cm2. The survival curve takes a “saddle pattern ”with the increase of the implanting dosages ,in which the survival rate treated is higher than the contrast . Low energy N+ ion implantation doesn′t cause the death rate much higher within the enperimental condition. Therefore , it is thought that low energy N+ ion implantation can improve the budding and survival rate of Portulaca oleracea L。 |
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| Keywords: | Low energy N ions Biological effects Budding rate Survival rate |
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