Abstract: The variation range and distribution pattern of effective accumulated temperature in the field growth period were analyzed based on the meteorological data of Jian Zexie (Alisma orientale) and Chuan Zexie (A. plantago-aquatica) in Jian’ou, Fujian Province and Pengshan, Sichuan Province in recent 40 years. We simulated the changes of effective accumulated temperature in two genuine producing areas, and compared the effects of effective accumulated temperature on the activities of antioxidant enzymes and the accumulation of functional substances in Jian Zexie and Chuan Zexie. The results showed that: (1) The effective accumulated temperature range of Jian Zexie and Chuan Zexie were 1044–1340 ℃·d and 602–962 ℃·d, respectively, and there were significant differences in the effective accumulated temperature required at different growth stages; (2) Under the condition of effective accumulated temperature in genuine producing areas, Jian Zexie and Chuan Zexie were more resistant to oxidation and had higher alisol B 23-acetate content in tubers, and the rapid accumulation period appeared on the 105–120 d, while the accumulation of 23-acetyl alisol C in two types of Jian Zexie and Chuan Zexie was opposite, and the content of 23-acetyl alisol C in genuine producing areas was low. These results showed that the effective accumulated temperature could significantly affect the antioxidant capacity and the accumulation of functional substances of Jian Zexie and Chuan Zexie. This study provided a theoretical basis for investigating the genuine causes of Jian Zexie and Chuan Zexie and standardized cultivation and management.

Key words: Jian Zexie, Chuan Zexie, effective accumulated temperature, antioxidant enzyme, functional substance

摘要： 根据泽泻道地产区福建建瓯和四川彭山近40年气象数据，分析建泽泻(东方泽泻Alisma orientale)和川泽泻(泽泻A. plantago-aquatica)大田生长期的有效积温变化范围与分布规律。模拟2个道地产区有效积温变化规律，比较研究有效积温对建泽泻和川泽泻的抗氧化酶活性及功效物质积累的影响。结果表明：(1) 建泽泻和川泽泻所需有效积温范围分别在1044～1340 ℃·d和602～962 ℃·d之间，且在不同生长阶段所需有效积温也存在显著差异；(2) 建泽泻与川泽泻在道地产区有效积温条件下, 抗氧化能力较强，块茎中23-乙酰泽泻醇B含量较高，快速积累期均出现在第105～120天，而两种泽泻23-乙酰泽泻醇C积累变化规律则相反，道地产区有效积温条件下的含量较低。以上结果表明，有效积温可显著影响建泽泻与川泽泻的抗氧化能力与功效物质积累，该研究为探究建泽泻与川泽泻道地性成因以及规范化栽培管理提供理论依据。

关键词: 建泽泻, 川泽泻, 有效积温, 抗氧化酶, 功效物质