Abstract
Changes in plant growth, photosynthetic gas exchange, chlorophyll fluorescence and stem diameter of soybean [Glycine max (L.) Merr.] plants under drought stress were studied. Total plant dry mass was reduced by 30 % compared to well-watered control plants. Leaf water potential was slightly decreased by water stress. Water stress induced daytime shrinkage and reduced night-time expansion of stem. Photosynthetic rate, stomatal conductance and transpiration rate were significantly declined by water stress, while the intercellular CO2 concentration was changed only slightly at the initiation of stress treatment. The maximum photochemical efficiency of photosystem 2 and apparent photosynthetic electron transport rate were not changed by water stress.
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Claims 7
Claim · model-written summary
Drought reduced total plant dry mass by 30% relative to well-watered controls.
- Taxon
- soybean
Glycine maxt0 - Treatment
- drought stresse1
- Outcome
- Total plant dry masse0
- Direction
- reducede0
- Value
- 30 %e0
- Comparator
- well-watered control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total plant dry mass was reduced by 30 % compared to well-watered control plants.”
t0“soybean plants”
e1“soybean [Glycine max (L.) Merr.] plants under drought stress”
Claim · model-written summary
Water stress slightly lowered leaf water potential.
- Taxon
- soybeanGlycine maxt0
- Treatment
- water stresse0
- Outcome
- Leaf water potentiale0
- Direction
- decreasede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf water potential was slightly decreased by water stress.”
t0“soybean plants”
Claim · model-written summary
Water stress induced daytime stem shrinkage.
- Taxon
- soybeanGlycine maxt0
- Treatment
- water stresse0
- Outcome
- daytime shrinkagee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress induced daytime shrinkage and reduced night-time expansion of stem.”
t0“soybean plants”
Claim · model-written summary
Water stress reduced nighttime stem expansion.
- Taxon
- soybeanGlycine maxt0
- Treatment
- water stresse0
- Outcome
- night-time expansion of steme0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress induced daytime shrinkage and reduced night-time expansion of stem.”
t0“soybean plants”
Claim · model-written summary
Water stress significantly reduced photosynthetic rate, stomatal conductance and transpiration.
- Taxon
- soybeanGlycine maxt0
- Treatment
- water stresse0
- Outcome
- Photosynthetic rate, stomatal conductance and transpiration ratee0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthetic rate, stomatal conductance and transpiration rate were significantly declined by water stress”
t0“soybean plants”
Claim · model-written summary
Intercellular CO2 concentration changed only slightly at stress initiation.
- Taxon
- soybeanGlycine maxt0
- Treatment
- stress treatmente0
- Outcome
- intercellular CO2 concentratione0
- Qualifier
- at the initiation of stress treatmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the intercellular CO2 concentration was changed only slightly at the initiation of stress treatment.”
t0“soybean plants”
Claim · model-written summary
Water stress did not change maximum photochemical efficiency or apparent electron transport rate.
- Taxon
- soybeanGlycine maxt0
- Treatment
- water stresse0
- Outcome
- maximum photochemical efficiency of photosystem 2 and apparent photosynthetic electron transport ratee0
- Direction
- not changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum photochemical efficiency of photosystem 2 and apparent photosynthetic electron transport rate were not changed by water stress.”
t0“soybean plants”
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See all 211 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.