Abstract
Elevated CO2 concentration [EC] generally leads to increased rates of photosynthesis, increased formation of assimilates and finally to storing them in the grain. Increased storage of starch in the grain, however, leads to an unbalanced proportion to the proteins, and their relative content decreases. This is particularly apparent in the conditions of nitrogen deficiency. The interactive effects of EC, nitrogen nutrition and reduced water availability are, however, not yet sufficiently understood. Within the manipulation experiment in open top chambers (Domaninek near Bystrice nad Pernstejnem) that allow simulation of EC (expected by the end of this century 700 ppm) and drought, the effect of these interactions on protein content, and other quality parameters of spring barley grain was studied. EC reduced grain protein content, increased extract, Kolbach index and also summary Malting quality index. Such effect was more pronounced under higher nitrogen dose, which generally worsened malting quality parameters. Reduced water availability slightly enhanced all malting quality parameters and also showed slight synergistic effect to EC. No clear interactive effects on malting quality were found for nitrogen nutrition and water availability.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Elevated CO2 reduced grain protein content in spring barley.
- Taxon
- spring barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- Elevated CO2 concentratione0
- Outcome
- grain protein contente1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“malting quality of spring barley”
e0“Elevated CO2 concentration [EC]”
e1“EC reduced grain protein content”
Claim · model-written summary
Elevated CO2 increased extract, Kolbach index and summary malting quality index in spring barley.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- Elevated CO2 concentratione0
- Outcome
- extract, Kolbach index and also summary Malting quality indexe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“malting quality of spring barley”
e0“Elevated CO2 concentration [EC]”
e1“EC reduced grain protein content, increased extract, Kolbach index and also summary Malting quality index”
Claim · model-written summary
Higher nitrogen dose generally worsened malting quality parameters of spring barley.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- higher nitrogen dosee2
- Outcome
- malting quality parameterse2
- Direction
- worsenede2
- Qualifier
- generallye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“malting quality of spring barley”
e2“Such effect was more pronounced under higher nitrogen dose, which generally worsened malting quality parameters”
Claim · model-written summary
Reduced water availability slightly enhanced all malting quality parameters of spring barley.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- Reduced water availabilitye3
- Outcome
- all malting quality parameterse3
- Direction
- enhancede3
- Qualifier
- slightlye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“malting quality of spring barley”
e3“Reduced water availability slightly enhanced all malting quality parameters and also showed slight synergistic effect to EC”
Claim · model-written summary
Reduced water availability showed a slight synergistic effect with elevated CO2 on malting quality of spring barley.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- Reduced water availabilitye3
- Outcome
- malting qualitye3
- Qualifier
- slight synergistic effect to ECe3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“malting quality of spring barley”
e3“Reduced water availability slightly enhanced all malting quality parameters and also showed slight synergistic effect to EC”
Claim · model-written summary
No clear interactive effects of nitrogen nutrition and water availability on malting quality of spring barley were found.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- nitrogen nutrition and water availabilitye4
- Outcome
- malting qualitye4
- Qualifier
- No clear interactive effectse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“malting quality of spring barley”
e4“No clear interactive effects on malting quality were found for nitrogen nutrition and water availability”
Claim · model-written summary
The EC effect was more pronounced under higher nitrogen dose in spring barley.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- higher nitrogen dosee2
- Outcome
- Such effecte2
- Qualifier
- more pronouncede2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“malting quality of spring barley”
e2“Such effect was more pronounced under higher nitrogen dose, which generally worsened malting quality parameters”
The same questions in other papers
co2 · quality: grain · Hordeum vulgare (barley)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
nitrogen · quality: grain · Hordeum vulgare (barley)Positive and negative results
5 papers in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 papers →soil water · quality: grain · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.