Abstract
Plant tolerance to salinity stress is vital for irrigation scheduling, decision-making, planning and operation, and water resource management. This study is aimed to investigate the effects of irrigation water salinity on water use, growth, physiology, and yield parameters of drip-irrigated tomatoes in two different growing seasons. In addition to control (0.7 dS m−1), three irrigation water salinity levels: 2.5 (low), 5.0 (moderate), and 7.5 (high) dS m−1 were used. In both seasons, autumn 2021 and spring 2022, increased water salinities caused an increase in soil salinity, while a decrease in seasonal crop evapotranspiration. Plant heights did not show significant differences under different salinity levels in autumn 2021, while a meaningful difference among treatments was found in spring 2022. Marketable and total tomato yields, and the leaf area index showed significant decreases under increased salinities in both seasons. Stomatal conductance was not affected by salinity levels. The salt tolerance models for marketable and total fruit yields showed a low threshold and slope value in autumn 2021, contrasting with a high threshold and slope value determined in spring 2022. The results suggest that the salinity slope value should be considered, as well as the salinity threshold value, for decision making in tomato production at different growing seasons.
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Claims 9
Claim · model-written summary
Increased irrigation water salinity increased soil salinity in the tomato greenhouse.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Treatment
- increased water salinitiese0
- Outcome
- soil salinitye0
- Direction
- increasee0
- Comparator
- control (0.7 dS m−1)e1
- Setting
- Mediterranean-Type Greenhouse Conditionst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased water salinities caused an increase in soil salinity, while a decrease in seasonal crop evapotranspiration”
e1“In addition to control (0.7 dS m−1), three irrigation water salinity levels”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
Increased irrigation water salinity decreased seasonal crop evapotranspiration of tomato.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- increased water salinitiese0
- Outcome
- seasonal crop evapotranspiratione0
- Direction
- decreasee0
- Comparator
- control (0.7 dS m−1)e1
- Setting
- Mediterranean-Type Greenhouse Conditionst0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased water salinities caused an increase in soil salinity, while a decrease in seasonal crop evapotranspiration”
e1“In addition to control (0.7 dS m−1), three irrigation water salinity levels”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
Plant height did not differ significantly among salinity levels in autumn 2021.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- different salinity levelse2
- Outcome
- Plant heightse2
- Direction
- no_changeinferrede2
- Setting
- autumn 2021e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Plant heights did not show significant differences under different salinity levels in autumn 2021, while a meaningful difference among treatments was found in spring 2022”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
Plant height differed among treatments in spring 2022, a meaningful difference with no direction stated.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- treatmentse2
- Outcome
- Plant heightse2
- Setting
- spring 2022e2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Plant heights did not show significant differences under different salinity levels in autumn 2021, while a meaningful difference among treatments was found in spring 2022”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
Increased salinities significantly decreased marketable and total tomato yields and leaf area index in both seasons.
- Taxon
- tomatoSolanum lycopersicume4
- Treatment
- increased salinitiese4
- Outcome
- Marketable and total tomato yields, and the leaf area indexe4
- Direction
- decreasese4
- Setting
- both seasonse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Marketable and total tomato yields, and the leaf area index showed significant decreases under increased salinities in both seasons”
Claim · model-written summary
Stomatal conductance was not affected by salinity levels in tomato.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- salinity levelse5
- Outcome
- Stomatal conductancee5
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Stomatal conductance was not affected by salinity levels”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
The salt tolerance model for marketable and total fruit yields gave a low threshold and slope in autumn 2021.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- threshold and slope valuee6
- Direction
- lowe6
- Setting
- autumn 2021e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The salt tolerance models for marketable and total fruit yields showed a low threshold and slope value in autumn 2021”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
The salt tolerance model for marketable and total fruit yields gave a high threshold and slope in spring 2022.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- threshold and slope valuee7
- Direction
- highe7
- Setting
- spring 2022e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“contrasting with a high threshold and slope value determined in spring 2022”
t0“Tomatoes Grown under Mediterranean-Type Greenhouse Conditions”
Claim · model-written summary
The salinity slope value should be considered together with the threshold value for decision making in tomato production.
- Taxon
- tomatoSolanum lycopersicume3
- Outcome
- salinity slope value should be considerede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The results suggest that the salinity slope value should be considered, as well as the salinity threshold value, for decision making in tomato production at different growing seasons”
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