| 高温胁迫下萝卜幼苗对硒的生理响应分析 |
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| 引用本文： | 李亚敏,肖红利.高温胁迫下萝卜幼苗对硒的生理响应分析[J].江西农业学报,2011,23(2):60-62. |
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| 作者姓名： | 李亚敏 肖红利 |
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| 作者单位： | 1. 陕西广播电视大学理工部,陕西,西安,710069
2. 西北农林科技大学生命科学学院,陕西,杨凌,712100 |
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| 摘 要： | 高温胁迫下硒对优白1号和白玉春萝卜幼苗生理生化特征影响的盆栽试验结果表明:低浓度硒(≤0.9 mg/kg)提高了叶片总叶绿素、可溶性蛋白、可溶性糖以及丙二醛(MDA)含量,这说明在一定浓度范围内的硒可以缓解高温胁迫对萝卜幼苗的伤害作用,促进幼苗的生长和耐热性的提高。
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| 关 键 词： | 高温胁迫 萝卜 幼苗 硒 生理响应 |
Physiological Response of Radish Seedling to Selenium under High Temperature Stress |
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| LI Ya-min,XIAO Hong-li.Physiological Response of Radish Seedling to Selenium under High Temperature Stress[J].Acta Agriculturae Jiangxi,2011,23(2):60-62. |
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| Authors: | LI Ya-min XIAO Hong-li |
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| Institution: | 1.Department of Science and Technology,Shaanxi Radio & TV University,Xi’an 710069,China;2.College of Life Sciences,Northwest Agricultural & Forestry University,Yangling 712100,China) |
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| Abstract: | The physiological response of the seedlings of radish(Raphanus sativus L.) varieties Youbai No.1 and Baiyuchun to selenium(Se) under high temperature stress was studied through pot experiment.The results indicated that when the concentration of Se was below or equal to 0.9 mg/kg,the contents of total chlorophyll,soluble protein,soluble sugar and malondialdehyde(MDA) in the leaves of radish were increased.While when the concentration of Se was over 1.2 mg/kg,their contents were decreased.It was concluded tha... |
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| Keywords: | High temperature stress Radish seedlings Selenium Physiological response |
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