抗坏血酸过氧化物酶(APX)的活性在感染的初期变化不明显，而在感染的后期活性有所增加。
The activity of ascorbic acid peroxidase (APX) showed no remarkable change in the initial infection stage, but increased during later stage of infection.
根系输液处理能在短时间内明显增加植株叶片全铁含量，活性铁含量也有所增加，但随着时间的推移其表现不稳定。
The root inserted treatment could improve leaves' content of total iron and active iron in short time, but the addiction was not stable after long time.
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