Abstract
BACKGROUND: The 'processing tomato' is an important source of natural antioxidants whose concentration depends, along with other parameters, on water availability. In order to better understand the mechanisms that regulate the response to water stress, a study was carried out in a typically semi-arid Mediterranean environment to investigate the yield, chemical composition and visual quality of tomato cv. 'Brigade' field grown under no irrigation (V0) in comparison with those of the conventional fully irrigated crop (V100). RESULTS: The stressful conditions of V0 affected the total yield. Nevertheless, fruits exhibited an increase in firmness (+27%), total solids (+23%) and total soluble solids (+5%). The dynamic balance between the antioxidant pattern and polyphenol oxidase activity under water stress conditions resulted in fruits with increased antioxidant activity (+12%), due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contents. CONCLUSION: It is possible to manage water stress by applying water-saving irrigation strategies in order to promote the quality and nutritional properties of tomatoes while also contributing to saving water. This is a relevant aspect in processing tomato cultivation in semi-arid environments, where both the cost and availability of irrigation water represent a rising problem in agricultural activities.
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Claims 10
Claim · model-written summary
No irrigation affected total tomato yield, with direction unspecified.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- V0e0
- Outcome
- total yielde0
- Comparator
- V100e1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stressful conditions of V0 affected the total yield.”
t0“tomato”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit had increased firmness by +27%.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- firmnesse0
- Direction
- increasee0
- Value
- +27%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits exhibited an increase in firmness (+27%), total solids (+23%) and total soluble solids (+5%).”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit had increased total solids by +23%.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- total solidse0
- Direction
- increasee0
- Value
- +23%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits exhibited an increase in firmness (+27%), total solids (+23%) and total soluble solids (+5%).”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit had increased total soluble solids by +5%.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- total soluble solidse0
- Direction
- increasee0
- Value
- +5%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits exhibited an increase in firmness (+27%), total solids (+23%) and total soluble solids (+5%).”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit showed increased antioxidant activity (+12%).
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- antioxidant activitye0
- Direction
- increasede0
- Value
- +12%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits with increased antioxidant activity (+12%), due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contents.”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit showed decline enzyme activity (-48%).
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- enzyme activitye0
- Direction
- declinee0
- Value
- -48%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits with increased antioxidant activity (+12%), due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contents.”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit showed rise vitamin C (+20%).
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- vitamin Ce0
- Direction
- risee0
- Value
- +20%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits with increased antioxidant activity (+12%), due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contents.”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
Water-stressed tomato fruit showed rise total phenolic (+13%).
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruitse0
- Treatment
- water stresst1
- Outcome
- total phenolice0
- Direction
- risee0
- Value
- +13%e0
- Comparator
- fully irrigated crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits with increased antioxidant activity (+12%), due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contents.”
t0“tomato”
t1“water stress in Mediterranean climate”
e1“conventional fully irrigated crop (V100)”
Claim · model-written summary
The authors attribute greater antioxidant activity to lower enzyme activity and higher vitamin C and total phenolic contents.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- increased antioxidant activitye0
- Qualifier
- due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruits with increased antioxidant activity (+12%), due to a decline in enzyme activity (-48%) and a rise in vitamin C (+20%) and total phenolic (+13%) contents.”
t0“tomato”
Claim · model-written summary
The authors recommend water-saving irrigation to promote tomato quality and nutritional properties while saving water.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- applying water-saving irrigation strategiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is possible to manage water stress by applying water-saving irrigation strategies in order to promote the quality and nutritional properties of tomatoes while also contributing to saving water.”
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