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盐胁迫下大麦叶片中Ｋ＋含量下降，Ｎａ＋含量上升，Ｋ＋／Ｎａ＋比下降，叶绿素含量下降，超氧阴离子（Ｏ－·２）和过氧化氢（Ｈ２Ｏ２）含量上升，液泡膜Ｈ＋－ＡＴＰａｓｅ活性下降。叶绿素含量下降与丙二醛（ＭＤＡ）、Ｈ２Ｏ２、Ｏ－·２含量及电导率的上升呈极显著负相关，液泡膜Ｈ＋－ＡＴＰａｓｅ活性下降与Ｈ２Ｏ２、Ｏ－·２含量的上升亦呈极显著负相关。说明盐胁迫下活性积累可能是加速叶绿素降解和伤害液泡膜功能的主要原因之一。
Under salt stress, K + content of barley decreased, Na + content increased, K + / Na + ratio decreased, chlorophyll content decreased, contents of superoxide anion (O.2) and H2O2 increased, vacuolar H + -ATPase activity decreased . The decrease of chlorophyll content was negatively correlated with the content of malondialdehyde (MDA), H2O2, O-2 and the increase of conductivity. The decrease of H + -ATPase activity and the increase of H2O2 and O- Negative correlation. Indicating that the activity of salt accumulation under stress may be accelerated chlorophyll degradation and injury of tonoplast function of the main reasons.