Abstract
The effect of the sources of nitrogen nutrition (nitrogen fixation or nitrate assimilation) and a gradual water stress on the relative water content, total fresh and dry biomass production, leaf growth, and changes in the total soluble protein spectra were studied. The plants were cultivated as soil cultures in a naturally illuminated greenhouse. Comparative studies were carried out with respect to well-watered, control plants. Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants. Water deficit effects on plant biomass at the end of the period studied (21 days) were independent on the nitrogen source. There was no qualitative difference in the total soluble protein spectra of nitratefed and nitrogen-fixing soybean leaves neither with the progress of development nor under drought conditions. But there was a difference in response to drought in termostable proteins of nitrate-fed and nitrogen-fixing plants. The quantity of termostable proteins in inoculated control plants was lower in some degree compared to uninoculated ones. In inoculated plants the water stress caused an increase in the amount of soluble termostable proteins
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Claims 8
Claim · model-written summary
Nitrogen-fixing soybean plants had smaller root development than nitrate-fed plants
- Taxon
- soybean
Glycine maxe0 - Treatment
- Nitrogen-fixinge0
- Outcome
- root developmente0
- Direction
- smallere0
- Comparator
- nitrate-fede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
Claim · model-written summary
Nitrogen-fixing soybean plants had better relative water content than nitrate-fed plants on the last sampling day
- Taxon
- soybeanGlycine maxe0
- Treatment
- Nitrogen-fixinge0
- Outcome
- relative water contente0
- Direction
- bettere0
- Qualifier
- on the last sampling daye0
- Comparator
- nitrate-fede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
Claim · model-written summary
Nitrogen-fixing soybean plants had large leaf area compared with nitrate-fed plants on the last sampling day
- Taxon
- soybeanGlycine maxe0
- Treatment
- Nitrogen-fixinge0
- Outcome
- leaf areae0
- Direction
- largee0
- Qualifier
- on the last sampling daye0
- Comparator
- nitrate-fede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
Claim · model-written summary
Water deficit did not change the dependence of soybean plant biomass on nitrogen source over 21 days
- Taxon
- soybeanGlycine maxe0
- Treatment
- Water deficite1
- Outcome
- plant biomasse1
- Direction
- independente1
- Qualifier
- 21 dayse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
e1“Water deficit effects on plant biomass at the end of the period studied (21 days) were independent on the nitrogen source”
Claim · model-written summary
No qualitative difference in total soluble protein spectra between nitrate-fed and nitrogen-fixing soybean leaves
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- leavese2
- Outcome
- total soluble protein spectrae2
- Direction
- no qualitative differencee2
- Comparator
- nitratefede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
e2“There was no qualitative difference in the total soluble protein spectra of nitratefed and nitrogen-fixing soybean leaves neither with the progress of development nor under drought conditions”
Claim · model-written summary
Drought response of thermostable proteins differed between nitrate-fed and nitrogen-fixing soybean plants
- Taxon
- soybeanGlycine maxe0
- Treatment
- droughte3
- Outcome
- response to drought in termostable proteinse3
- Direction
- differencee3
- Comparator
- nitrate-fede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
e3“there was a difference in response to drought in termostable proteins of nitrate-fed and nitrogen-fixing plants”
Claim · model-written summary
Inoculated soybean plants had lower thermostable soluble protein quantity than uninoculated plants
- Taxon
- soybeanGlycine maxe0
- Treatment
- inoculatede4
- Outcome
- quantity of termostable proteinse4
- Direction
- lowere4
- Comparator
- uninoculated onese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
e4“The quantity of termostable proteins in inoculated control plants was lower in some degree compared to uninoculated ones”
Claim · model-written summary
Water stress increased the amount of soluble thermostable proteins in inoculated soybean plants
- Taxon
- soybeanGlycine maxe0
- Treatment
- water stresse5
- Outcome
- amount of soluble termostable proteinse5
- Direction
- increasee5
- Qualifier
- inoculated plantse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen-fixing control and drought plants had relatively smaller root development but better relative water content and large leaf area on the last sampling day than nitrate-fed soybean plants”
e5“In inoculated plants the water stress caused an increase in the amount of soluble termostable proteins”
The same questions in other papers
nitrogen · physiology: water · Glycine max (soybean)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 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.