Abstract
Decreasing carbon (C) footprints by reducing nitrogen (N) and water inputs has been speculated to have negative impacts on wheat grain yield and flour processing quality. The objective of this study was to determine the impact of N and water stress on winter wheat grain yield, protein composition, and dough quality. Wheat fertilized at two N rates (unfertilized and recommended) was grown under water-stressed and well-watered environments. Nitrogen and water stress were measured using the 13C isotopic approach. Research showed that (1) N fertilizer and the water-management environment produced similar impacts on wheat quality and yield loss due to N stress and yield loss due to water stress (YLWS); (2) N fertilizer increased flour protein, dough stability, and relative concentration of glutenin (%Glu), unextractable polymeric protein (UPP), and relative amount of high-molecular-weight glutenin subunits (HMW-GS/LMW-GS); (3) the well-watered environment reduced protein contents when N mineralization was low, whereas it did not influence protein content when mineralization was high; and (4) the %Glu was negatively correlated with yield loss due to N stress (YLNS) and positively correlated with stability. This study showed that a clear understanding of the complex relationship between soil variability and climatic conditions should make it possible to develop adaptive management practices, increase profitability, and improve quality.
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Claims 7
Claim · model-written summary
N fertilizer and the water-management environment produced similar impacts on wheat quality and yield loss due to N stress and water stress
- Taxon
- wheat
Triticum aestivumt0 - Outcome
- wheat quality and yield loss due to N stresse1
- Qualifier
- similar impactse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“N fertilizer and the water-management environment produced similar impacts on wheat quality and yield loss due to N stress and yield loss due to water stress (YLWS)”
Claim · model-written summary
N fertilizer increased flour protein and dough stability relative to unfertilized wheat
- Taxon
- wheatTriticum aestivumt0
- Treatment
- N fertilizere1
- Outcome
- flour protein, dough stabilitye1
- Direction
- increasede1
- Comparator
- unfertilizede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“N fertilizer increased flour protein, dough stability”
e2“Wheat fertilized at two N rates (unfertilized and recommended)”
Claim · model-written summary
N fertilizer increased the relative concentration of glutenin (%Glu), unextractable polymeric protein and relative amount of HMW-GS/LMW-GS relative to unfertilized wheat
- Taxon
- wheatTriticum aestivumt0
- Treatment
- N fertilizere3
- Outcome
- relative concentration of glutenin (%Glu), unextractable polymeric protein (UPP), and relative amount of high-molecular-weight glutenin subunits (HMW-GS/LMW-GS)e1
- Direction
- increasede3
- Comparator
- unfertilizede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“relative concentration of glutenin (%Glu), unextractable polymeric protein (UPP), and relative amount of high-molecular-weight glutenin subunits (HMW-GS/LMW-GS)”
e2“Wheat fertilized at two N rates (unfertilized and recommended)”
e3“N fertilizer increased flour protein, dough stability”
Claim · model-written summary
The well-watered environment reduced protein contents when N mineralization was low
- Taxon
- wheatTriticum aestivumt0
- Treatment
- well-watered environmente1
- Outcome
- protein contentse1
- Direction
- reducede1
- Qualifier
- when N mineralization was lowe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“the well-watered environment reduced protein contents when N mineralization was low”
Claim · model-written summary
The well-watered environment did not influence protein content when N mineralization was high
- Taxon
- wheatTriticum aestivumt0
- Treatment
- well-watered environmente2
- Outcome
- protein contente1
- Direction
- did not influencee1
- Qualifier
- when mineralization was highe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“whereas it did not influence protein content when mineralization was high”
e2“the well-watered environment reduced protein contents when N mineralization was low”
Claim · model-written summary
Percent Glu was negatively associated with yield loss due to N stress
- Taxon
- wheatTriticum aestivumt0
- Gene
- %Glue1
- Outcome
- yield loss due to N stress (YLNS)e1
- Direction
- negatively correlatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“%Glu was negatively correlated with yield loss due to N stress (YLNS)”
Claim · model-written summary
Percent Glu was positively associated with dough stability
- Taxon
- wheatTriticum aestivumt0
- Gene
- %Glue1
- Outcome
- stabilitye1
- Direction
- positively correlatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat Quality Responses”
e1“%Glu was negatively correlated with yield loss due to N stress (YLNS) and positively correlated with stability”
The same questions in other papers
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- positive
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500 papers in the same direction as this paper · 56 in the opposite direction · 9 reporting no difference from an alternative
- no effect
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See all 566 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.