Abstract
Irrigation water of poor quality that is high in salts, alkalinity-inducing compounds, and boron (B) threatens global agricultural production. The objective of the present study was to determine whether supplementary calcium (Ca) and potassium (K) ameliorate the response of tomato plants to a simultaneous combination of these stress conditions. Irrigation water high in alkalinity, salinity, and B reduced plant growth, which was associated with a partial impairment in the antioxidant system (reduction in catalase activity), impairment in water relations (reduced relative water content), decreased nutrient acquisition [lower nitrogen (N), phosphorus (P), K, Ca, and magnesium (Mg) content]; and specific toxicity due to the increase in shoot sodium (Na) and B. However, stressed plants exhibited partially improved growth when supplemented with greater concentrations of Ca and K, which were associated with enhanced P concentration, maintenance of chlorophyll a concentration, and/or partially restored N, P, K, Ca, and Mg uptake.
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Claims 7
Claim · model-written summary
High alkalinity, salinity and boron irrigation water reduced tomato growth.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- Irrigation water high in alkalinity, salinity, and Be0
- Outcome
- plant growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“Irrigation water high in alkalinity, salinity, and B reduced plant growth”
Claim · model-written summary
Combined irrigation stress reduced catalase activity, relative water content, and nutrient content.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- catalase activitye0
- Direction
- reductione0
- Qualifier
- reduced relative water contente1
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“reduction in catalase activity”
e1“reduced relative water content”
e2“lower nitrogen (N), phosphorus (P), K, Ca, and magnesium (Mg) content”
Claim · model-written summary
Combined irrigation stress increased shoot sodium and boron.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- shoot sodium (Na) and Be0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“increase in shoot sodium (Na) and B”
Claim · model-written summary
Greater calcium and potassium supplementation partially improved growth of stressed tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- greater concentrations of Ca and Ke0
- Outcome
- growthe0
- Direction
- improvede0
- Qualifier
- partiallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“stressed plants exhibited partially improved growth when supplemented with greater concentrations of Ca and K”
Claim · model-written summary
Calcium and potassium supplementation enhanced phosphorus concentration in stressed tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- P concentratione0
- Direction
- enhancede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“associated with enhanced P concentration”
Claim · model-written summary
Calcium and potassium supplementation maintained chlorophyll a concentration in stressed tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- chlorophyll a concentratione0
- Direction
- maintenancee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“maintenance of chlorophyll a concentration”
Claim · model-written summary
Calcium and potassium supplementation partially restored nitrogen, phosphorus, potassium, calcium and magnesium uptake in stressed tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- N, P, K, Ca, and Mg uptakee0
- Direction
- restorede0
- Qualifier
- partiallye0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato (Solanum lycopersicumL.)”
e0“partially restored N, P, K, Ca, and Mg uptake”
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See all 300 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.