Abstract
ABSTRACT Agricultural production has become a challenge in arid and semi-arid regions due to the scarcity of water for irrigation, so brackish water is commonly used. The present study aimed to evaluate the physiological and production responses of cherry tomato cultivars under salinity levels of the nutrient solution in a hydroponic system. The experiment was conducted in a split plot and 5 × 3 factorial scheme with four repetitions. The factors corresponded to different values of electrical conductivity of the nutrient solution (ECns 2.5, 4.0, 5.5, 7.0 and 8.5 dS m-1) and cultivars (Samambaia, Tomate Vermelho and Caroline). The increase in nutrient solution salinity negatively affected the gas exchange, electrolyte leakage and photosynthetic pigments of the cherry tomato cultivars, mainly with the prolongation of stress. The photosynthetic system was efficient up to 4.0 dS m-1, but, above this electrical conductivity in the nutrient solution, there was photoinhibition or photodamage in the cherry tomato plants at 30 days after transplanting. The cherry tomato cultivars Samambaia and Caroline were the most adapted to brackish solutions, while Tomate Vermelho was the most susceptible.
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Claims 5
Claim · model-written summary
Increasing nutrient solution salinity negatively affected gas exchange, electrolyte leakage and photosynthetic pigments of cherry tomato.
- Taxon
- cherry tomato cultivars
Solanum lycopersicum var. cerasiformet0 - Treatment
- increase in nutrient solution salinitye1
- Outcome
- gas exchange, electrolyte leakage and photosynthetic pigmentse1
- Direction
- negatively affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cherry tomato cultivars”
e1“The increase in nutrient solution salinity negatively affected the gas exchange, electrolyte leakage and photosynthetic pigments of the cherry tomato cultivars”
Claim · model-written summary
The photosynthetic system of cherry tomato was efficient up to 4.0 dS m-1 nutrient solution electrical conductivity.
- Taxon
- cherry tomatoSolanum lycopersicum var. cerasiformee2
- Treatment
- up to 4.0 dS m-1e2
- Outcome
- photosynthetic systeme2
- Direction
- efficiente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cherry tomato cultivars”
e2“The photosynthetic system was efficient up to 4.0 dS m-1, but, above this electrical conductivity in the nutrient solution, there was photoinhibition or photodamage in the cherry tomato plants at 30 days after transplanting”
Claim · model-written summary
Above 4.0 dS m-1, cherry tomato plants showed photoinhibition or photodamage at 30 days after transplanting.
- Taxon
- cherry tomatoSolanum lycopersicum var. cerasiformee2
- Treatment
- above this electrical conductivity in the nutrient solutione2
- Outcome
- photoinhibition or photodamagee2
- Qualifier
- at 30 days after transplantinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cherry tomato cultivars”
e2“The photosynthetic system was efficient up to 4.0 dS m-1, but, above this electrical conductivity in the nutrient solution, there was photoinhibition or photodamage in the cherry tomato plants at 30 days after transplanting”
Claim · model-written summary
Cherry tomato cultivars Samambaia and Caroline were the most adapted to brackish solutions.
- Taxon
- cherry tomatoSolanum lycopersicum var. cerasiformee3
- Material
- Samambaia and Carolinee3
- Treatment
- brackish solutionse3
- Outcome
- adaptede3
- Direction
- most adaptede3
- Comparator
- Tomate Vermelhoe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cherry tomato cultivars”
e3“The cherry tomato cultivars Samambaia and Caroline were the most adapted to brackish solutions, while Tomate Vermelho was the most susceptible”
Claim · model-written summary
Cherry tomato cultivar Tomate Vermelho was the most susceptible to brackish solutions.
- Taxon
- cherry tomatoSolanum lycopersicum var. cerasiformee3
- Material
- Tomate Vermelhoe3
- Outcome
- susceptiblee3
- Direction
- most susceptiblee3
- Comparator
- Samambaia and Carolinee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cherry tomato cultivars”
e3“The cherry tomato cultivars Samambaia and Caroline were the most adapted to brackish solutions, while Tomate Vermelho was the most susceptible”
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