Abstract
This research was conducted in order to evaluation the salinity stress effect on growth parameters and stem anatomical changes of soybean grown under controlled conditions. Soybean seeds were surface sterilized and then sown into plastic pots filled up with perlite and vermiculite. Seeds were irrigated with Broughton and Dilworth solution daily. At full folded cotyledons stage (5 day after sowing), salinity stress was induced by adding NaCl into nutrition solution with final concentration of 0, 25, 50 and 100 mM. Thirty days after sowing plants were harvested and growth parameters and anatomical changes were evaluated. The results showed that, salinity stress was significantly decreased shoot and root weight either fresh weight or dry weight, in addition, total plant weight, plant height and leaf number were decreased due to salinity stress. Interestingly, leaf area was not affected by salinity stress. Stem microscopic study demonstrated that, salinity stress significantly increased cutin mass and trichome density on epidermal cells. On the other hand, cortex thickness was decreased because of salinity stress while xylem thickness had upward increase when soybean plants were grown under salinity stress especially high level of salinity. Additionally, there were changed in xylem formation and arrangement in stressed plants.
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Claims 7
Claim · model-written summary
Salinity significantly decreased soybean shoot and root fresh and dry weight.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- salinity stresse0
- Outcome
- shoot and root weight either fresh weight or dry weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress was significantly decreased shoot and root weight either fresh weight or dry weight”
t0“Soybean”
Claim · model-written summary
Salinity decreased soybean total plant weight, plant height and leaf number.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- salinity stresse0
- Outcome
- total plant weight, plant height and leaf numbere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total plant weight, plant height and leaf number were decreased due to salinity stress”
t0“Soybean”
Claim · model-written summary
Salinity did not affect soybean leaf area.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- salinity stresse0
- Outcome
- leaf areae0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf area was not affected by salinity stress”
t0“Soybean”
Claim · model-written summary
Salinity significantly increased cutin mass and trichome density on soybean epidermal cells.
- Taxon
- SoybeanGlycine maxt0
- Organ / stage
- epidermal cellse0
- Treatment
- salinity stresse0
- Outcome
- cutin mass and trichome densitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress significantly increased cutin mass and trichome density on epidermal cells”
t0“Soybean”
Claim · model-written summary
Salinity decreased soybean cortex thickness.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- salinity stresse0
- Outcome
- cortex thicknesse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cortex thickness was decreased because of salinity stress”
t0“Soybean”
Claim · model-written summary
Soybean xylem thickness increased under salinity, especially at high salinity.
- Taxon
- soybeanGlycine maxe0
- Treatment
- salinity stresse0
- Outcome
- xylem thicknesse0
- Direction
- upward increasee0
- Qualifier
- especially high level of salinitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“xylem thickness had upward increase when soybean plants were grown under salinity stress especially high level of salinity”
Claim · model-written summary
Xylem formation and arrangement changed in salinity-stressed soybean plants.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- stressede0
- Outcome
- changed in xylem formation and arrangemente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were changed in xylem formation and arrangement in stressed plants”
t0“Soybean”
The same questions in other papers
salinity · growth · Glycine max (soybean)Positive and negative results
109 papers in the same direction as this paper · 6 in the opposite direction
- negative
- negative
- positive
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See all 116 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.