Abstract
Abstract Diploid and autotetraploid plants of the cultivated tomato Lycopersicon esculentum cv. Lukullus (Luk) were studied under low and high salinity. Polyploids had a higher water content than diploid plants. Water content in both plant types decreased under salinity, the decrease being smaller in the polyploid plants. Dry weight of whole young plants decreased in both diploid and polyploid plants under salinity, the decrease being smaller in the latter. Transpiration of whole plants, grown in control solution, was lower in polyploid than in diploid plants and decreased more under salinity in the latter. Rate of change of water loss of detached drying leaves was similar in diploid and polyploid plants. Leaves of control diploid plants, however, lost more water per unit leaf area during the phase of stomatal closure apparently due to higher stomatal density. Polyploid plants had fewer but more open stomata per unit leaf area, under both control and saline conditions. Root pressure, determined only under control conditions, seemed to be higher in polyploid plants. No difference in Cl − concentration per unit leaf dry weight was found between diploid and polyploid plants grown in either control or NaCl solution.
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Claims 11
Claim · model-written summary
Polyploids had higher water content than diploids.
- Taxon
- Tomato
Solanum lycopersicumt0 - Material
- Polyploidse0
- Outcome
- water contente0
- Direction
- highere0
- Comparator
- diploid plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Polyploids had a higher water content than diploid plants.”
Claim · model-written summary
Salinity reduced water content in both plant types, less in polyploids.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinitye0
- Outcome
- Water contente0
- Direction
- decreasede0
- Qualifier
- decrease being smaller in the polyploid plantse0
- Comparator
- both plant typese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Water content in both plant types decreased under salinity, the decrease being smaller in the polyploid plants.”
Claim · model-written summary
Salinity reduced young-plant dry weight in both ploidies, less in polyploids.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinitye0
- Outcome
- Dry weight of whole young plantse0
- Direction
- decreasede0
- Qualifier
- decrease being smaller in the lattere0
- Comparator
- both diploid and polyploid plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Dry weight of whole young plants decreased in both diploid and polyploid plants under salinity, the decrease being smaller in the latter.”
Claim · model-written summary
Control-grown polyploids transpired less than diploids.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- polyploide0
- Outcome
- Transpiration of whole plantse0
- Direction
- lowere0
- Comparator
- diploid plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Transpiration of whole plants, grown in control solution, was lower in polyploid than in diploid plants”
Claim · model-written summary
Salinity reduced transpiration more in diploids.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinitye0
- Outcome
- Transpiratione1
- Direction
- decreasede0
- Comparator
- diploid plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“decreased more under salinity in the latter.”
e1“Transpiration of whole plants, grown in control solution, was lower in polyploid than in diploid plants”
Claim · model-written summary
Detached leaves of both ploidies had similar rates of water-loss change.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- detached drying leavese0
- Outcome
- Rate of change of water losse0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Rate of change of water loss of detached drying leaves was similar in diploid and polyploid plants.”
Claim · model-written summary
Control diploid leaves lost more water per leaf area during stomatal closure.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- diploid plantse0
- Organ / stage
- Leavese0
- Outcome
- water per unit leaf areae0
- Direction
- moree0
- Qualifier
- phase of stomatal closuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Leaves of control diploid plants, however, lost more water per unit leaf area during the phase of stomatal closure apparently due to higher stomatal density.”
Claim · model-written summary
Polyploid plants had fewer stomata per leaf area.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Polyploid plantse0
- Outcome
- stomata per unit leaf areae0
- Direction
- fewere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Polyploid plants had fewer but more open stomata per unit leaf area, under both control and saline conditions.”
Claim · model-written summary
Polyploid stomata were more open under control and saline conditions.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Polyploid plantse0
- Outcome
- open stomatae0
- Direction
- more opene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Polyploid plants had fewer but more open stomata per unit leaf area, under both control and saline conditions.”
Claim · model-written summary
Root pressure seemed higher in polyploids under control conditions.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- polyploid plantse0
- Outcome
- Root pressuree0
- Direction
- highere0
- Qualifier
- determined only under control conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“Root pressure, determined only under control conditions, seemed to be higher in polyploid plants.”
Claim · model-written summary
Leaf chloride concentration did not differ by ploidy in control or NaCl solution.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- Cl − concentration per unit leaf dry weighte0
- Direction
- No differencee0
- Comparator
- diploid and polyploid plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato under Low and High Salinity”
e0“No difference in Cl − concentration per unit leaf dry weight was found between diploid and polyploid plants grown in either control or NaCl solution.”
The same questions in other papers
salinity · soil: physics · Solanum lycopersicum (tomato)Results agree
5 papers in the same direction as this paper
- negative
- no effect
- negative
2 papers more in this group
See all 6 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.