Abstract
A pot experiment was carried out with two strawberry (Fragaria x ananassa Duch) cultivars, Oso Grande and Camarosa in sand culture to investigate the effects of supplementary calcium and potassium nitrate to plants grown at high NaCl (35mM) in complete nutrient solution supplied via roots. Treatments were (1) nutrient solution alone (C), (2) C+5mM Ca(NO)+5mM KNO (C+CaN+KN), (3) nutrient solution+35mM NaCl (C+S), (4) C+S+5mM Ca(NO) (C+S+CaN), (5) C+S+5mM KNO (C+S+KN), and (6) C+S+5mM Ca(NO)+5mM KNO (C+S+CAN+KN). The plants grown at high NaCl had less dry matter, fruit yield, and chlorophyll content than those grown in normal nutrient solution for both cultivars. Both supplementary Ca(NO) and KNO treatments significantly ameliorated the negative effects of salinity on plant growth and fruit yield. Treatment 4 (C+S+CaN) was slightly more effective in mitigating salt stress than treatment 5 (C+S+KN). However, neither of these was as effective as the combined treatment 6. Membrane permeability increased with high NaCl and was reduced by supplementary Ca(NO) and KNO. Sodium concentration in plant tissues increased in both cultivars in the high NaCl treatment. Leaf concentrations of calcium (Ca), potassium (K), and nitrogen (N) were much lower in plants grown at high NaCl than those in the unstressed treatment (C). Concentrations of these three nutrients were all significantly increased by both individual supplements but were generally highest, in some cases very close to control values in the C+S+CaN+KN treatment.
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Claims 10
Claim · model-written summary
High NaCl reduced dry matter, fruit yield and chlorophyll content in both strawberry cultivars.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae1 - Treatment
- high NaCle0
- Outcome
- dry matter, fruit yield, and chlorophyll contente0
- Direction
- lesse0
- Comparator
- normal nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“The plants grown at high NaCl had less dry matter, fruit yield, and chlorophyll content than those grown in normal nutrient solution for both cultivars”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
Supplementary Ca(NO) ameliorated salinity effects on plant growth and fruit yield.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- supplementary Ca(NO)e0
- Outcome
- plant growth and fruit yielde0
- Direction
- amelioratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both supplementary Ca(NO) and KNO treatments significantly ameliorated the negative effects of salinity on plant growth and fruit yield”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
Supplementary KNO ameliorated salinity effects on plant growth and fruit yield.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- KNO treatmentse0
- Outcome
- plant growth and fruit yielde0
- Direction
- amelioratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both supplementary Ca(NO) and KNO treatments significantly ameliorated the negative effects of salinity on plant growth and fruit yield”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
The combined supplement was more effective than either individual treatment at mitigating salt stress.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- combined treatment 6e0
- Outcome
- mitigating salt stresse0
- Direction
- more effectivee0
- Comparator
- Treatment 4 (C+S+CaN)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment 4 (C+S+CaN) was slightly more effective in mitigating salt stress than treatment 5 (C+S+KN). However, neither of these was as effective as the combined treatment 6”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
High NaCl increased membrane permeability.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- high NaCle0
- Outcome
- Membrane permeabilitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Membrane permeability increased with high NaCl”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
Supplementary Ca(NO) and KNO reduced membrane permeability.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- supplementary Ca(NO) and KNOe0
- Outcome
- Membrane permeabilitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Membrane permeability increased with high NaCl and was reduced by supplementary Ca(NO) and KNO”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
High NaCl increased sodium concentration in both cultivars.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- high NaCl treatmente0
- Outcome
- Sodium concentration in plant tissuese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sodium concentration in plant tissues increased in both cultivars in the high NaCl treatment”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
High NaCl lowered leaf calcium, potassium and nitrogen concentrations relative to unstressed plants.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- high NaCle0
- Outcome
- Leaf concentrations of calcium (Ca), potassium (K), and nitrogen (N)e0
- Direction
- much lowere0
- Comparator
- unstressed treatment (C)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf concentrations of calcium (Ca), potassium (K), and nitrogen (N) were much lower in plants grown at high NaCl than those in the unstressed treatment (C)”
e1“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
Both individual supplements increased concentrations of the three leaf nutrients.
- Taxon
- strawberryFragaria ×ananassae2
- Treatment
- both individual supplementse0
- Outcome
- Leaf concentrations of calcium (Ca), potassium (K), and nitrogen (N)e1
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of these three nutrients were all significantly increased by both individual supplements”
e1“Leaf concentrations of calcium (Ca), potassium (K), and nitrogen (N)”
e2“two strawberry (Fragaria x ananassa Duch) cultivars”
Claim · model-written summary
The combined supplement generally produced the highest concentrations of the three leaf nutrients.
- Taxon
- strawberryFragaria ×ananassae2
- Treatment
- C+S+CaN+KN treatmente0
- Outcome
- Concentrations of these three nutrientse1
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“were generally highest, in some cases very close to control values in the C+S+CaN+KN treatment”
e1“Concentrations of these three nutrients”
e2“two strawberry (Fragaria x ananassa Duch) cultivars”
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See all 7 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.