Abstract
Abstract Tomato plants (Lycopersicon esculentum, Mill) were grown in nutrient solution to observe the combined effect of three NaCl levels (1,20, and 60 mM) and four magnesium (Mg) levels (0.5,1.0,5.0, and 10.0 mM) on fruit yield, water relations and mineral composition. Salinity at 20 and 60 mM NaCl reduced the marketable fruit yield compared to 1 mM NaCl. In non‐saline conditions (1 mM NaCl), Mg concentrations of 1 mM or greater progressively reduced fruit yield, whereas in saline solutions (20 and 60 mM NaCl) fruit yield was depressed by Mg concentrations of 5 and 10 mM. The marketable fruit yield reduction was well correlated with salinity and Mg concentrations in the external medium (R2=0.83). This harmful effect was related to the influence which NaCl and Mg had on plant water relationships and toxicity and/or imbalances in the mineral nutrition. In the conditions of this experiment, all components of the leaf water status were significantly altered and it was clear that calcium (Ca)‐Mg and potassium (K)‐sodium (Na) interactions took place. Therefore, the concentrations of Mg in the nutrient solution could be an important factor in the hydroponic culture of tomato grown under saline conditions.
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Claims 8
Claim · model-written summary
Salinity at 20 and 60 mM NaCl reduced marketable tomato fruit yield relative to 1 mM NaCl.
- Taxon
- tomato plants
Solanum lycopersicumt0 - Treatment
- 20 and 60 mM NaCle0
- Outcome
- marketable fruit yielde0
- Direction
- reducede0
- Comparator
- 1 mM NaCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity at 20 and 60 mM NaCl reduced the marketable fruit yield compared to 1 mM NaCl”
t0“tomato plants”
Claim · model-written summary
Under non-saline conditions, magnesium concentrations of at least 1 mM progressively reduced tomato fruit yield.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- Mg concentrations of 1 mM or greatere0
- Outcome
- fruit yielde0
- Direction
- reducede0
- Qualifier
- non‐saline conditions (1 mM NaCl)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In non‐saline conditions (1 mM NaCl), Mg concentrations of 1 mM or greater progressively reduced fruit yield”
t0“tomato plants”
Claim · model-written summary
In saline solutions, magnesium concentrations of 5 and 10 mM depressed tomato fruit yield.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- Mg concentrations of 5 and 10 mMe0
- Outcome
- fruit yielde0
- Direction
- depressede0
- Qualifier
- saline solutions (20 and 60 mM NaCl)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in saline solutions (20 and 60 mM NaCl) fruit yield was depressed by Mg concentrations of 5 and 10 mM”
t0“tomato plants”
Claim · model-written summary
Marketable tomato fruit yield reduction correlated with salinity and magnesium concentrations in the external medium, with R2=0.83.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- salinity and Mg concentrationse0
- Outcome
- marketable fruit yield reductione0
- Direction
- reductione0
- Value
- R2=0.83e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The marketable fruit yield reduction was well correlated with salinity and Mg concentrations in the external medium (R2=0.83)”
t0“tomato plants”
Claim · model-written summary
The authors related the harmful yield effect to altered plant water relations and mineral toxicity or imbalance.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Treatment
- NaCl and Mge0
- Outcome
- harmful effecte0
- Qualifier
- plant water relationships and toxicity and/or imbalances in the mineral nutritione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This harmful effect was related to the influence which NaCl and Mg had on plant water relationships and toxicity and/or imbalances in the mineral nutrition”
t0“tomato plants”
Claim · model-written summary
All measured components of tomato leaf water status were significantly altered.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Organ / stage
- leafe0
- Outcome
- leaf water statuse0
- Direction
- alterede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all components of the leaf water status were significantly altered”
t0“tomato plants”
Claim · model-written summary
Calcium–magnesium and potassium–sodium interactions occurred in tomato.
- Taxon
- tomato plantsSolanum lycopersicumt0
- Outcome
- calcium (Ca)‐Mg and potassium (K)‐sodium (Na) interactionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“calcium (Ca)‐Mg and potassium (K)‐sodium (Na) interactions took place”
t0“tomato plants”
Claim · model-written summary
The authors consider magnesium concentration in nutrient solution important for saline hydroponic tomato culture.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- concentrations of Mg in the nutrient solutione0
- Qualifier
- under saline conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the concentrations of Mg in the nutrient solution could be an important factor in the hydroponic culture of tomato grown under saline conditions”
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See all 29 papers →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.