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研究了不同物种耐铝力差异与超氧化物歧化酶（ＳＯＤ）活力的关系。结果表明，在非胁迫条件下，随着大麦、小麦种子初生根的伸长，ＳＯＤ活力逐渐下降；不同物种原初ＳＯＤ活力高低与其耐铝力相一致，即茶＞小麦＞大麦。在Ａｌ处理６～１８ｈ内，ＳＯＤ活力在Ａｌ＜０．２ｍｍｏｌ／Ｌ浓度范围内呈先升后降趋势。同功酶电泳结果表明，茶树根系ＳＯＤ比大麦和小麦多两条迁移率（Ｒｆ）小的同功酶谱带。
The relationship between aluminum tolerance and superoxide dismutase (SOD) activity of different species was studied. The results showed that under non-stress conditions, SOD activity gradually decreased with the primary root elongation of barley and wheat. The initial SOD activity of different species was consistent with that of aluminum tolerant, ie tea> wheat> barley. Within 6 ~ 18h of Al treatment, SOD activity increased first and then decreased in the range of Al <0.2mmol / L. The results of isozyme electrophoresis showed that SOD in tea roots had two isozyme bands with much lower mobility (Rf) than barley and wheat.