| 不同营养液浓度对土人参几个生理指标的影响 |
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| 引用本文： | 胡安生,梁建斌,张孝建.不同营养液浓度对土人参几个生理指标的影响[J].江西农业学报,2009,21(8):86-90. |
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| 作者姓名： | 胡安生 梁建斌 张孝建 |
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| 作者单位： | 1. 福建省三明市农业学校,福建,沙县,365500
2. 福建农林大学,生命科学学院,福建,福州,350002 |
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| 摘 要： | 研究不同营养液浓度对土人参可溶性蛋白质含量、抗氧化系统及根系活力的影响。结果表明,与对照土培比,营养液培养的土人参叶片MDA的累积量随着营养液浓度的提高先降后升,以1倍营养液浓度培养的含量最低;同时土人参叶片中SOD、POD、CAT的活性和可溶性蛋白含量都有不同程度的提高,而ASA含量在营养液浓度小于1倍浓度时均有显著升高,这可能是土人参对养分胁迫的适应性响应。与土培相比,除水培外,处理所用的几种营养浓度都提高了土人参根系活力,且以1倍营养液浓度时活力最大。因此,初步推断营养液在低浓度时随着浓度的升高,促进土人参生长;高浓度营养液抑制土人参生长;1倍营养液浓度最适宜土人参生长。
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| 关 键 词： | 土人参 抗氧化系统 根系活力 营养液培养 |
Effects of Different Concentrations of Nutrient Solution on Several Physiological Indexes of Talinum paniculatum |
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| HU An-sheng,LIANG Jian-bin,ZHANG Xiao-jian.Effects of Different Concentrations of Nutrient Solution on Several Physiological Indexes of Talinum paniculatum[J].Acta Agriculturae Jiangxi,2009,21(8):86-90. |
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| Authors: | HU An-sheng LIANG Jian-bin ZHANG Xiao-jian |
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| Institution: | 1.Sanming Agricultural School in Fujian Province;Shaxian 365500;China;2.College of Life Science;Fujian Agricultural and Forestry University;Fuzhou 350002;China |
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| Abstract: | The soluble protein content,antioxidant system,and root activity of Talinum paniculatum treated with different concentrations of nutrient solution were investigated.The results showed that in comparison with the control(soil-culture),the content of malondialhyde(MDA) in Talinum paniculatum leaves decreased at first and then significantly increased when the concentration of the nutrient solution increased,which was the lowest when 1 times dilute nutrient solution was applied.The activities of superoxide dism... |
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| Keywords: | Talinum paniculatum Antioxidant system Root activity Nutrient solution culture |
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