| 高温胁迫下不同激素处理对高羊茅生理生态指标及耐热性的影响 |
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| 引用本文： | 邓蕾,王艳,李建龙.高温胁迫下不同激素处理对高羊茅生理生态指标及耐热性的影响[J].草原与草坪,2010,30(3):33-38. |
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| 作者姓名： | 邓蕾 王艳 李建龙 |
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| 作者单位： | 南京大学,生命科学院草学中心,江苏,南京,210093 |
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| 基金项目： | 国家高科技研究发展计划(863计划)项目，亚太地区APN项目 |
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| 摘 要： | 以凌志高羊茅为试验材料,研究在高温胁迫下喷施SA,6-BA和H2O2对其生理生态指标及耐热性的影响。结果表明:(1)喷施6-BA,SA及H2O2对高羊茅草坪草的生态性状有显著的影响,他们都不同程度地减轻了高温胁迫对高羊茅草坪草的伤害;(2)浓度为0.1 mmol/L的SA比浓度为0.5mmol/L和1.0 mmol/L的SA能更有效地减轻高羊茅草坪草由于高温胁迫导致的伤害;(3)浓度为0.01 mmol/L的6-BA在所有处理中效果最好,使得高羊茅草坪草的叶色、质地、盖度、均一性、生长速度、叶绿素含量和净光合速率都明显优于其他种类及浓度的喷施方式;(4)H2O2对提高高羊茅草坪草的抗热性相比另外两种物质并不明显;(5)喷施SA,6-BA和H2O2对高温胁迫下高羊茅光合速率的提高有很大作用。
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| 关 键 词： | 高温胁迫 激素 高羊茅 生理生态指标 耐热性 |
Effects of different hormones levels on physiological and ecological indicators of Festuca arundinacea cv. Barlexas underheat stress |
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| DENG Lei,WANG Yan,LI Jian-long.Effects of different hormones levels on physiological and ecological indicators of Festuca arundinacea cv. Barlexas underheat stress[J].Grassland and Turf,2010,30(3):33-38. |
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| Authors: | DENG Lei WANG Yan LI Jian-long |
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| Institution: | DENG Lei,WANG Yan,LI Jian-long (College of Life Science,Nanjing University,Nanjing 210093,China) |
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| Abstract: | Effects of different hormones levels on physiological and ecological indicators of Festuca arundinacea cv.Barlexas were studied under high temperature stress by spraying different concentrations of SA,6-BA and H2O2.The results showed that ecological traits of Festuca arundinacea cv.Barlexas were affected by spraying 6-BA,SA,and H2O2,which reduced the harm under high temperature stress.0.1 mmol/L SA was better than the other concentration of SA,so it more effectively reduced turfgrass injury caused by high t... |
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| Keywords: | hormone Festuca arundinacea cv Barlexas ecological indicators photosynthetic rate regulation of heat tolerance |
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