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.
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Claims 5
Claim · model-written summary
Cultivars differed significantly in dry matter, soluble solids and pH.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Outcome
- dry matter, total soluble solids, and pH parameterse0
- Comparator
- cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences between cultivars in quality characteristics—such as dry matter, total soluble solids, and pH parameters”
t0“Tomatoes”
Claim · model-written summary
Water treatments did not significantly differ in fruit quality characteristics.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- drought stress conditionse1
- Outcome
- quality characteristicse0
- Direction
- no differencese0
- Comparator
- two treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no differences in the quality characteristics between the two treatments of the fruits (p > 0.05)”
t0“Tomatoes”
e1“Four tomato cultivars (Incas, Marmande, Scoresby Dwarf, and Window Box Red) were grown in a greenhouse under well-watered and drought stress conditions”
Claim · model-written summary
Fruit antioxidant composition differed significantly by cultivar and treatment.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- antioxidant compositions (lycopene, total phenolics, and flavonoids)e0
- Comparator
- cultivars and treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
t0“Tomatoes”
Claim · model-written summary
Fruit antioxidant activity differed significantly by cultivar and treatment.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- antioxidant activities (DPPH and ABTS)e0
- Comparator
- cultivars and treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
t0“Tomatoes”
Claim · model-written summary
Tomato bioactive compounds increased under water stress.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- water stress conditionse0
- Outcome
- bioactive compoundse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomatoes increased their bioactive compounds without changing any quality characteristics when exposed to water stress conditions”
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