Abstract
The use of seawater in horticulture is underestimated. Although pure seawater is harmful to most living plants, diluted seawater could represent a promising integration to meet the crop’s nutrient and water requirements. In the current trial, we compared the effects of moderate and high concentrations of seawater and a comparable NaCl solution on a salt-tolerant (Tetragonia tetragonioides) and a salt-sensitive (Lactuca sativa) crop grown in hydroponics. We tested the hypothesis that, due to its mineral composition, diluted seawater would result in a less stressful growing medium than NaCl. We observed that diluted seawater resulted in a less detrimental growing medium compared to an EC-comparable NaCl solution, with remarkable differences between the salt-tolerant and the salt-sensitive species. While the growth rates in Tetragonia did not vary between the two types of stress, diluted seawater led to a higher FW and DW biomass yield in the salt-sensitive lettuce compared to the NaCl treatment. Moreover, NaCl reduced the water consumption and water productivity in Tetragonia. In lettuce, NaCl-treated plants demonstrated lower water use efficiency and water productivity compared to the EC-comparable seawater treatment. Physiological parameters and the concentration of mineral elements, phenolics and proline also demonstrated that, due to different mineral composition, seawater is a less stressful growing medium compared to a NaCl solution at comparable EC.
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Claims 5
Claim · model-written summary
Growth rates of Tetragonia did not vary between the two types of salt stress.
- Taxon
- Tetragonia
Tetragoniae1 - Treatment
- two types of stresse1
- Outcome
- growth ratese1
- Direction
- did not varye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“While the growth rates in Tetragonia did not vary between the two types of stress”
Claim · model-written summary
Diluted seawater gave a higher fresh and dry biomass yield in the salt-sensitive lettuce than the NaCl treatment.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- diluted seawatere1
- Outcome
- FW and DW biomass yielde1
- Direction
- highere1
- Comparator
- NaCl treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“diluted seawater led to a higher FW and DW biomass yield in the salt-sensitive lettuce compared to the NaCl treatment”
Claim · model-written summary
NaCl reduced water consumption and water productivity in Tetragonia.
- Taxon
- TetragoniaTetragoniae1
- Treatment
- NaCle1
- Outcome
- water consumption and water productivitye1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“NaCl reduced the water consumption and water productivity in Tetragonia”
Claim · model-written summary
In lettuce, NaCl-treated plants had lower water use efficiency and water productivity than under the EC-comparable seawater treatment.
- Taxon
- lettuceLactuca sativae1
- Treatment
- NaCle1
- Outcome
- water use efficiency and water productivitye1
- Direction
- lowere1
- Comparator
- EC-comparable seawater treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In lettuce, NaCl-treated plants demonstrated lower water use efficiency and water productivity compared to the EC-comparable seawater treatment”
Claim · model-written summary
Seawater is a less stressful growing medium than a NaCl solution at comparable EC, with physiological parameters, mineral elements, phenolics and proline indicating this.
- Taxon
- Tetragonia tetragonioides (Pallas) Kuntz.) and Glycophyte (Lactuca sativa L.)Lactuca sativa
Pallat0 - Treatment
- seawatere1
- Outcome
- Physiological parameterse1
- Direction
- less stressfule1
- Qualifier
- due to different mineral compositione1
- Comparator
- NaCl solutione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Physiological parameters and the concentration of mineral elements, phenolics and proline also demonstrated that, due to different mineral composition, seawater is a less stressful growing medium compared to a NaCl solution at comparable EC”
t0“Tetragonia tetragonioides (Pallas) Kuntz.) and Glycophyte (Lactuca sativa L.)”
The same questions in other papers
sodium chloride · physiology: water · Lactuca sativa (garden lettuce)Results agree
3 papers in the same direction as this paper
- negative
- negative
- no effect
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.