Abstract
Water stress is by far the most serious limiting factor to tomato (Solanum lycopersicom) production, particularly in Iran where located in arid and semi-arid regions. Silicon (Si) is considered an effective element to mitigate the adverse effects of water stress by promoting plant growth and production. Therefore, the present study was designed to evaluate the effects of the foliar application of Si (0, 100, and 200 mg L–1) and three water regimes – no stress (100), mild stress (80%), and severe stress (60%) – on the growth parameters, the yield, and the fruit quality as well as antioxidant status of the tomato. The imposed water stress significantly increased the total soluble solids (TSS), the total acidity (TA), and the flavonoids as well as antioxidant defense parameters such as catalase (CAT) and peroxidase (POX), while the growth parameters (plant height and leaf number) and tomato yield were decreased. In contrast, the foliar application of Si (200 mg L–1) remarkably improved the total yield of tomatoes when exposed to water stress by improving the antioxidant enzyme activities and total flavonoid compounds. In addition, the application of Si could significantly improve the growth parameters (plant height and leaf number) and fruit quality (fruit firmness and size). As a result, the foliar application of Si could be suggested as an effective strategy for imparting water stress resistance in the tomato.
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Claims 8
Claim · model-written summary
Water stress increased TSS, TA and flavonoids.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- water stresse0
- Outcome
- total soluble solids (TSS), the total acidity (TA), and the flavonoidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The imposed water stress significantly increased the total soluble solids (TSS), the total acidity (TA), and the flavonoids”
t0“tomato under water stress”
Claim · model-written summary
Water stress increased catalase and peroxidase parameters.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- water stresse0
- Outcome
- antioxidant defense parameters such as catalase (CAT) and peroxidase (POX)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water stress significantly increased the total soluble solids (TSS), the total acidity (TA), and the flavonoids as well as antioxidant defense parameters such as catalase (CAT) and peroxidase (POX)”
t0“tomato under water stress”
Claim · model-written summary
Water stress decreased plant height and leaf number.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- water stresst0
- Outcome
- growth parameters (plant height and leaf number)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth parameters (plant height and leaf number) and tomato yield were decreased”
t0“tomato under water stress”
Claim · model-written summary
Water stress decreased tomato yield.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- water stresst0
- Outcome
- tomato yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth parameters (plant height and leaf number) and tomato yield were decreased”
t0“tomato under water stress”
Claim · model-written summary
Foliar silicon at 200 mg L–1 improved tomato yield under water stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- foliar application of Si (200 mg L–1)e0
- Outcome
- total yield of tomatoese0
- Direction
- improvede0
- Qualifier
- when exposed to water stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the foliar application of Si (200 mg L–1) remarkably improved the total yield of tomatoes when exposed to water stress”
t0“tomato under water stress”
Claim · model-written summary
Silicon improved antioxidant enzyme activities and flavonoids under water stress.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- foliar application of Sie0
- Outcome
- antioxidant enzyme activities and total flavonoid compoundse0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the foliar application of Si (200 mg L–1) remarkably improved the total yield of tomatoes when exposed to water stress by improving the antioxidant enzyme activities and total flavonoid compounds”
t0“tomato under water stress”
Claim · model-written summary
Silicon improved plant height and leaf number.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- application of Sie0
- Outcome
- growth parameters (plant height and leaf number)e0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Si could significantly improve the growth parameters (plant height and leaf number)”
t0“tomato under water stress”
Claim · model-written summary
Silicon improved fruit firmness and size.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- application of Sie0
- Outcome
- fruit quality (fruit firmness and size)e0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Si could significantly improve the growth parameters (plant height and leaf number) and fruit quality (fruit firmness and size)”
t0“tomato under water stress”
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