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标题：Effect on Quality Characteristics of Tomatoes Grown Under Well-Watered and Drought Stress Conditions
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作者：Warinporn Klunklin ; Geoffrey Savage
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2017
卷号：6
期号：8
页码：56
DOI：10.3390/foods6080056
语种：English
出版社：MDPI Publishing
摘要：Tomatoes are one of the most nutritionally and economically important crops in New Zealand and around the world. Tomatoes require large amounts of water to grow well and are adversely affected by drought stress. However, few studies have evaluated the physicochemical characteristics of commercial tomatoes grown under water stress conditions. Four tomato cultivars (Incas, Marmande, Scoresby Dwarf, and Window Box Red) were grown in a greenhouse under well-watered and drought stress conditions and the tomatoes were harvested when ripe. The physicochemical properties and antioxidant contents of the fruits were compared. There were significant differences between cultivars in quality characteristics—such as dry matter, total soluble solids, and pH parameters—but there were no differences in the quality characteristics between the two treatments of the fruits (p > 0.05); however, there were significant differences (p < 0.05) in the antioxidant compositions (lycopene, total phenolics, and flavonoids) and antioxidant activities (DPPH and ABTS) of the fruits of both cultivars and treatments. Overall, these results indicated that tomatoes increased their bioactive compounds without changing any quality characteristics when exposed to water stress conditions.
关键词：tomato; drought; water stress; antioxidants; lycopene; antioxidant activities tomato ; drought ; water stress ; antioxidants ; lycopene ; antioxidant activities