EFFECT OF EXOGENOUS SPERMIDINE ON POLYAMINE CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES IN ROOTS OF CUCUMBER SEEDLINGS UNDER ROOT-ZONE HYPOXIA STRESS是什么意思_EFFECT OF EXOGENOUS SPERMIDINE ON POLYAMINE CONTENT AND ANTIOXIDANT ENZYME ACTIVITIES IN ROOTS OF CUCUMBER SEEDLINGS UNDER ROOT-ZONE HYPOXIA STRESS在线翻译_英语_读音_用法_例句