Superoxide dismutase, catalase and peroxidase activities, content of soluble protein and soluble sugar were positively correlated with the cold tolerance of Chinese olive cultivars.

• 超氧化物歧化酶活性、过氧化氢酶活性、过氧化物酶活性、可溶性蛋白含量、可溶性糖含量与品种的耐寒性呈正相关。