Abstract
L.) landraces will facilitate their use in genetic improvement. The study assessed the morpho-physiological variability of Hail tomato landraces in response to different salinity levels at seedling stages and recommended a tomato salt-tolerant landrace for future breeding programs. Three tomato landraces, Hail 548, Hail 747, and Hail 1072 were tested under three salinity levels: 75, 150, and 300 mM NaCl. Salinity stress reduced shoots' fresh and dry weight by 71% and 72%, and roots were 86.5% and 78.6%, respectively. There was 22% reduced chlorophyll content, carotene content by 18.6%, and anthocyanin by 41.1%. Proline content increased for stressed treatments. The 300 mM NaCl treatment recorded the most proline content increases (67.37 mg/g fresh weight), with a percent increase in proline reaching 61.67% in Hail 747. Superoxide dismutase (SOD) activity decreased by 65% in Hail 548, while it relatively increased in Hail 747 and Hail 1072 treated with 300 mM NaCl. Catalase (CAT) activity was enhanced by salt stress in Hail 548 and recorded 7.6%, increasing at 75 and 5.1% at 300 mM NaCl. It revealed a reduction in malondialdehyde (MDA) at the 300 mM NaCl concentration in both Hail 548 and Hail 1072 landraces. Increasing salt concentrations showed a reduction in transpiration rate of 70.55%, 7.13% in stomatal conductance, and 72.34% in photosynthetic rate. K+/Na+ ratios decreased from 56% for 75 mM NaCl to 85% for 300 mM NaCl treatments in all genotypes. The response to salt stress in landraces involved some modifications in morphology, physiology, and metabolism. The landrace Hail 548 may have better protection against salt stress and observed protection against reactive oxygen species (ROS) by increasing enzymatic "antioxidants" activity under salt stress.
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Claims 20
Claim · model-written summary
Salinity stress reduced shoot fresh weight by 71% in the tomato landraces.
- Taxon
- Tomato
Solanum lycopersicumt0 - Organ / stage
- shoots'e1
- Treatment
- Salinity stresse1
- Outcome
- fresh and dry weighte1
- Direction
- reducede1
- Value
- 71%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%, and roots were 86.5% and 78.6%, respectively”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salinity stress reduced shoot dry weight by 72% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- shoots'e1
- Treatment
- Salinity stresse1
- Outcome
- dry weighte1
- Direction
- reducede1
- Value
- 72%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%, and roots were 86.5% and 78.6%, respectively”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salinity stress reduced root fresh weight by 86.5% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- rootse1
- Treatment
- Salinity stresse1
- Outcome
- weighte1
- Direction
- reducede1
- Value
- 86.5%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%, and roots were 86.5% and 78.6%, respectively”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salinity stress reduced root dry weight by 78.6% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- rootse1
- Treatment
- Salinity stresse1
- Outcome
- weighte1
- Direction
- reducede1
- Value
- 78.6%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%, and roots were 86.5% and 78.6%, respectively”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salinity stress reduced chlorophyll content by 22% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Salinity stresse1
- Outcome
- chlorophyll contente2
- Direction
- reducede2
- Value
- 22%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%”
e2“There was 22% reduced chlorophyll content, carotene content by 18.6%, and anthocyanin by 41.1%”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salinity stress decreased carotene content by 18.6% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Salinity stresse1
- Outcome
- carotene contente2
- Direction
- decreaseinferrede2
- Value
- 18.6%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%”
e2“There was 22% reduced chlorophyll content, carotene content by 18.6%, and anthocyanin by 41.1%”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salinity stress decreased anthocyanin by 41.1% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Salinity stresse1
- Outcome
- anthocyanine2
- Direction
- decreaseinferrede2
- Value
- 41.1%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%”
e2“There was 22% reduced chlorophyll content, carotene content by 18.6%, and anthocyanin by 41.1%”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Proline content increased under salinity stress in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Salinity stresse1
- Outcome
- Proline contente3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%”
e3“Proline content increased for stressed treatments”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
The 300 mM NaCl treatment gave the largest proline increase, to 67.37 mg/g fresh weight, in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 300 mM NaCl treatmente4
- Outcome
- proline content increasese4
- Direction
- increasese4
- Value
- 67.37 mg/g fresh weighte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The 300 mM NaCl treatment recorded the most proline content increases (67.37 mg/g fresh weight), with a percent increase in proline reaching 61.67% in Hail 747”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Proline increased by 61.67% in Hail 747 under salt stress.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Hail 747e4
- Treatment
- 300 mM NaCl treatmente4
- Outcome
- percent increase in prolinee4
- Direction
- increasee4
- Value
- 61.67%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The 300 mM NaCl treatment recorded the most proline content increases (67.37 mg/g fresh weight), with a percent increase in proline reaching 61.67% in Hail 747”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Superoxide dismutase activity decreased by 65% in Hail 548 under salt stress.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Hail 548e5
- Treatment
- Salinity stresse1
- Outcome
- Superoxide dismutase (SOD) activitye5
- Direction
- decreasede5
- Value
- 65%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Salinity stress reduced shoots' fresh and dry weight by 71% and 72%”
e5“Superoxide dismutase (SOD) activity decreased by 65% in Hail 548, while it relatively increased in Hail 747 and Hail 1072 treated with 300 mM NaCl”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Superoxide dismutase activity increased in Hail 747 and Hail 1072 treated with 300 mM NaCl.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Hail 747 and Hail 1072e5
- Treatment
- 300 mM NaCle5
- Outcome
- Superoxide dismutase (SOD) activitye5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Superoxide dismutase (SOD) activity decreased by 65% in Hail 548, while it relatively increased in Hail 747 and Hail 1072 treated with 300 mM NaCl”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Salt stress enhanced catalase activity in Hail 548.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Hail 548e6
- Treatment
- salt stresse6
- Outcome
- Catalase (CAT) activitye6
- Direction
- enhancede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Catalase (CAT) activity was enhanced by salt stress in Hail 548”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
At 300 mM NaCl, malondialdehyde was reduced in Hail 548 and Hail 1072.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Hail 548 and Hail 1072e7
- Treatment
- 300 mM NaCl concentratione7
- Outcome
- malondialdehyde (MDA)e7
- Direction
- reductione7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“It revealed a reduction in malondialdehyde (MDA) at the 300 mM NaCl concentration in both Hail 548 and Hail 1072 landraces”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Increasing salt concentrations reduced transpiration rate by 70.55% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Increasing salt concentrationse0
- Outcome
- transpiration ratee0
- Direction
- reductione0
- Value
- 70.55%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing salt concentrations showed a reduction in transpiration rate of 70.55%, 7.13% in stomatal conductance, and 72.34% in photosynthetic rate”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Increasing salt concentrations reduced stomatal conductance by 7.13% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Increasing salt concentrationse0
- Outcome
- stomatal conductancee0
- Direction
- reductione0
- Value
- 7.13%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing salt concentrations showed a reduction in transpiration rate of 70.55%, 7.13% in stomatal conductance, and 72.34% in photosynthetic rate”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Increasing salt concentrations reduced photosynthetic rate by 72.34% in the tomato landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Increasing salt concentrationse0
- Outcome
- photosynthetic ratee0
- Direction
- reductione0
- Value
- 72.34%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing salt concentrations showed a reduction in transpiration rate of 70.55%, 7.13% in stomatal conductance, and 72.34% in photosynthetic rate”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
The K+/Na+ ratio decreased from 56% at 75 mM NaCl to 85% at 300 mM NaCl in all genotypes.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- all genotypese0
- Treatment
- 300 mM NaCl treatmentse0
- Outcome
- K+/Na+ ratiose0
- Direction
- decreasede0
- Value
- 56% for 75 mM NaCl to 85% for 300 mM NaCle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K+/Na+ ratios decreased from 56% for 75 mM NaCl to 85% for 300 mM NaCl treatments in all genotypes”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
Hail 548 may have better protection against salt stress than the other landraces.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Hail 548e0
- Outcome
- protection against salt stresse0
- Qualifier
- may have bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The landrace Hail 548 may have better protection against salt stress”
t0“Tomato Landraces to Salinity Stress”
Claim · model-written summary
The study recommends a tomato salt-tolerant landrace for future breeding programs.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- salt-tolerant landrace for future breeding programse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“recommended a tomato salt-tolerant landrace for future breeding programs”
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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.