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Foods 2017, 6(8), 56; https://doi.org/10.3390/foods6080056

Effect on Quality Characteristics of Tomatoes Grown Under Well-Watered and Drought Stress Conditions

Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
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Received: 24 May 2017 / Revised: 20 July 2017 / Accepted: 20 July 2017 / Published: 25 July 2017
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Abstract

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. View Full-Text
Keywords: tomato; drought; water stress; antioxidants; lycopene; antioxidant activities tomato; drought; water stress; antioxidants; lycopene; antioxidant activities
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Klunklin, W.; Savage, G. Effect on Quality Characteristics of Tomatoes Grown Under Well-Watered and Drought Stress Conditions. Foods 2017, 6, 56.

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