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用不同浓度NaCl(0、80、150、250mmol/L)处理小黑麦三叶期幼苗,测定处理1、3、5、7d时的叶片中超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性的动态变化规律。结果显示:用80mmol/L NaCl处理后,小黑麦幼苗叶片中3种抗氧化酶活性均随着处理时间的延长而升高,在NaCl浓度为150mmol/L和250mmol/L时酶活性先上升,在3d或5d时达最大值,之后酶活性下降,但仍高于对照。表明小黑麦有较强的抗盐能力。
Trifolium repens seedlings were treated with different concentrations of NaCl (0, 80, 150, 250 mmol / L) and the activities of superoxide dismutase (SOD), peroxidase POD) and catalase (CAT) activities of the dynamic changes. The results showed that with the treatment of 80 mmol / L NaCl, the activities of three antioxidant enzymes in Triticale seedling leaves increased with the prolongation of treatment time. The enzyme activity increased first at NaCl concentration of 150 mmol / L and 250 mmol / L , Reaching the maximum at 3d or 5d, then the enzyme activity decreased, but still higher than the control. Triticale shows strong salt tolerance.