The electrolyte leakage rate of leaves and roots was raised.
叶片及根系电解质渗漏率增大；
The photosynthetic rate of detached leaves and Hill reaction of chloroplast were inhibited graviously during chilling treatment, and the electrolyte leakage of leaves was increased by chilling.
随低温处理时间的延长，玉米离体叶片光合速率迅速下降，叶绿体希尔反应活性下降，叶片电解质外渗率增加。
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