| 60Coγ射线辐照对野牛草坪用性状的诱变效应 |
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| 引用本文： | 庞帝琼,李健,张蕴薇,于晓丹,杨富裕.60Coγ射线辐照对野牛草坪用性状的诱变效应[J].安徽农业科学,2012,40(16):8912-8914. |
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| 作者姓名： | 庞帝琼 李健 张蕴薇 于晓丹 杨富裕 |
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| 作者单位： | 中国农业大学草地研究所,北京,100193;中国农业大学草地研究所,北京,100193;中国农业大学草地研究所,北京,100193;中国农业大学草地研究所,北京,100193;中国农业大学草地研究所,北京,100193 |
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| 基金项目： | 国家科技支撑计划项目，国家973课题，国家863课题，国家现代牧草产业技术体系项目 |
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| 摘 要： | 目的]对60Coγ射线辐照对野牛草坪用性状的诱变效应进行研究。方法]以经不同辐照强度的60Coγ射线处理后的野牛草Bu-chloe dactyloides(Nutt.)Engelm.]为试验材料,对其进行坪用相关性状的测定,分析不同γ射线不同辐照强度(1 200、1 400、1 600、1 800、2 000 Gy)对野牛草当代植株草坪相关性状的诱变效应。结果]各辐照处理的野牛草发芽率变化趋势不一致,种苗的根长和芽长均小于对照;与对照相比,辐照处理后幼苗的高度显著变小,分蘖数、株高、叶长和叶宽均小于对照;匍匐茎长度、匍匐茎粗和匍匐茎节数与对照差异不显著。结论]该研究为确定野牛草诱变育种的适宜γ射线辐射剂量及筛选有益突变体奠定基础。
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| 关 键 词： | 野牛草 γ射线 坪用性状 诱变效应 |
Mutagenic Effect of 60Co γ-rays Irradiation on Turf Characteristics of Buchloe dactyloides (Nutt.) Engelm |
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| Institution: | PANG Di-qiong et al(Institute of Grassland Science,China Agricultural University,Beijing 100193) |
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| Abstract: | Objective] This study aimed to investigate the mutagenic effect of 60Co γ-rays irradiation on turf characteristics of Buchloe dactyloides(Nutt.) Engelm.Method] Buffalo grass was irradiated by 60Co γ-rays with five different radiation intensities(1 200,1 400,1 600,1 800,2 000 Gy) to determine the related turf characteristics and analyze the mutagenic effect of 60Co γ-rays with different radiation intensities on buffalo grass.Result] Germination rates of buffalo grass irradiated by different radiation intensities of 60Co γ-rays varied inconsistently,and the root length and bud length were shorter than the control;compared with the control,the height of irradiated seedlings was significantly smaller,and the number of tillers,plant height,leaf length and leaf width were shorter than the control;however,the stolon length,stolon width and number of stolon nods had no significant difference compared with the control.Conclusion] This study laid the foundation for determining the appropriate radiation intensity of 60Co γ-rays and selecting useful mutants of buffalo grass. |
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| Keywords: | Buffalo grass 60Co γ-rays Turf characteristics Mutagenic effect |
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