以10个番茄品种为试材,研究了不同根际低氧时间对番茄体内超氧化物歧化酶(SOD)活性的影响,以解决水培番茄栽培中根际低氧问题,促进水培番茄技术大面积推广。结果表明:根际低氧胁迫在低氧初期可促进酶活性的提高,随着根际低氧胁迫时间增加,酶活性降低;而且不同番茄品种在根际低氧胁迫环境中酶活性的降低程度不同,品种之间存在差异。在根际低氧胁迫条件下,SOD活性较强的番茄品种为‘紫玫瑰’,SOD活性较弱品种为‘丹红F1’。 Ten tomato cultivars were used as materials to study the effect of different rhizospheric hypoxia time on superoxide dismutase (SOD) activity in tomato so as to solve the problem of rhizosphere hypoxia in hydroponic tomato culture and promote the technology of hydroponic tomato Area promotion. The results showed that the rhizosphere hypoxia stress increased the enzyme activity in the early stage of hypoxia, decreased with the increase of rhizosphere hypoxia stress, and decreased the enzyme activity in different rhizosphere hypoxia stress Different, there are differences between varieties. Under the condition of rhizosphere hypoxia stress, the tomato varieties with stronger SOD activity were purple rose and the SOD with lower SOD activity was ’Danhong F1’.