| 聚乙二醇胁迫对高羊茅种子萌发和幼苗生长的影响 |
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| 引用本文： | 郑轶琦,臧国长,王青风.聚乙二醇胁迫对高羊茅种子萌发和幼苗生长的影响[J].北方园艺,2012(2):70-72. |
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| 作者姓名： | 郑轶琦 臧国长 王青风 |
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| 作者单位： | 河南科技大学林学院,河南洛阳,471003 |
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| 基金项目： | 河南科技大学博士科研基金资助项目 |
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| 摘 要： | 采用不同浓度聚乙二醇(PEG6000)溶液,对‘星火’、‘可奇思’、‘猎狗六号’3个高羊茅种子的萌发情况进行研究。结果表明:3个品种在干旱胁迫下种子萌发时间并无显著差异,且在高浓度时均未发芽。低PEG浓度(5%)对‘猎狗六号’和‘星火’种子发芽有促进作用,高浓度(15%～25%)对3个品种种子的萌发都表现为抑制作用。3个品种的抗旱性顺序为‘星火’>‘猎狗六号’>‘可奇思’。
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| 关 键 词： | PEG胁迫 高羊茅 种子萌发 幼苗生长 |
Effect of PEG Stress on Seed Germination and Seedling Growth of Tall Fescue |
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| ZHENG Yi-qi
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ZANG Guo-zhang
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WANG Qing-feng.Effect of PEG Stress on Seed Germination and Seedling Growth of Tall Fescue[J].Northern Horticulture,2012(2):70-72. |
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| Authors: | ZHENG Yi-qi ZANG Guo-zhang WANG Qing-feng |
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| Institution: | (College of Forestry,Henan University of Science and Technology,Luoyang,Henan 471003) |
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| Abstract: | The seeds germination of ’Houndog 6’,’Cochies’,’Starfire’ three tall fescue’s cultivars were researched under artificial drought stress by using different concentrations of polyethylene glycol(PEG6000) solution.The results showed that it had no significant difference among the time of three cultivars’ seed beginning to germinate under drought stress.But none of these three germinated at high PEG concentration.The seeds germination of ’Houndog 6’ and ’Starfire’ were promoted at low concentration.But at high concentration,the germination of three cultivars were all inhibited.The order of these three cultivars’ drought resistance was ’Starfire’ >’Houndog 6’> ’Cochies’. |
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| Keywords: | PEG stress tall fescue seed germination seedling growth |
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