Abstract
Waterlogging is becoming one of the major constraints for wheat production and has resulted in severe reductions in both grain yield and quality over the world.Waterlogging events after anthesis usually cause much greater yield loss than those before anthesis.To explore approaches to alleviate the adverse effects of post-anthesis waterlogging on grain yield and quality,a pot experiment with winter wheat(Triticum aestivum L.cv Yangmai 9) was conducted.Before anthesis wheat plants were subjected to two water treatments:(1) the Control,where the soil relative water content was maintained at 70 80%,and,(2) a waterlogging pretreatment(maintaining a 1-2 cm water layer above the soil for 2 days).This pretreatment was repeated three times,i.e.at the seven-leaf,the nine-leaf stage and the heading stage.At 7 days after anthesis,plants from both treatments were further divided into two sub-groups and separately subjected to two water treatments lasting for 7 days each.Thus,four treatments were established from 7 DAA onwards:(1) pre-anthesis waterlogging hardening and post-anthesis waterlogging(WW);(2) pre-anthesis waterlogging only(WC);(3) control: non-waterlogging stress during both pre-anthesis and post-anthesis(CC);(4) post-anthesis waterlogging only(CW).The effects of the pre-anthesis waterlogging pretreatment(PWP) on grain yield and quality were then studied.The aim of this study was to test the hypothesis that short-term waterlogging pre-conditioning before anthesis can improve tolerance to post-anthesis waterlogging.It was foundthat waterlogging at both pre-and post-anthesis reduced grain yield and affected grain quality.However,PWP significantly increased biomass,harvest index,1000-kernel weight,and consequently improved grain yield of wheat under post-anthesis waterlogging,compared with the non-pretreated plants.PWP also enhanced post-anthesis nitrogen accumulation and its contribution to grain nitrogen,while decreased the redistribution of nitrogen accumulated before anthesis as well as the contribution to grain nitrogen.Finally,PWP caused significant increases in contents of globulin,flour dry gluten,wet gluten and sedimentation volume,and resulted in reductions in the contents of albumin,gliadin,glutelin and total protein in the grain.In addition,PWP increased contents of amylase and total starch,and falling number and enhanced peak viscosity,holding trough viscosity,breakdown,final viscosity,setback and peak time.However,PWP did not significantly affect the pasting temperature.We concluded that waterlogging pre-treatment before anthesis could essentially improve the tolerance of wheat plants to severe waterlogging after anthesis,as exemplified by increases in grain yield and the modifications on grain quality traits.
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 17
Claim · model-written summary
Waterlogging before and after anthesis reduced wheat grain yield.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- waterlogging at both pre-and post-anthesise0
- Outcome
- grain yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“waterlogging at both pre-and post-anthesis reduced grain yield and affected grain quality”
t0“wheat”
Claim · model-written summary
Waterlogging before and after anthesis affected wheat grain quality.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- waterlogging at both pre-and post-anthesise0
- Outcome
- grain qualitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“waterlogging at both pre-and post-anthesis reduced grain yield and affected grain quality”
t0“wheat”
Claim · model-written summary
Pre-anthesis waterlogging pretreatment increased wheat biomass under post-anthesis waterlogging.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PWPe0
- Outcome
- biomasse0
- Direction
- increasede0
- Qualifier
- under post-anthesis waterlogginge0
- Comparator
- non-pretreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP significantly increased biomass,harvest index,1000-kernel weight,and consequently improved grain yield of wheat under post-anthesis waterlogging,compared with the non-pretreated plants.”
Claim · model-written summary
Pre-anthesis waterlogging pretreatment increased wheat harvest index under post-anthesis waterlogging.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PWPe0
- Outcome
- harvest indexe0
- Direction
- increasede0
- Qualifier
- under post-anthesis waterlogginge0
- Comparator
- non-pretreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP significantly increased biomass,harvest index,1000-kernel weight,and consequently improved grain yield of wheat under post-anthesis waterlogging,compared with the non-pretreated plants.”
Claim · model-written summary
Pre-anthesis waterlogging pretreatment increased wheat 1000-kernel weight under post-anthesis waterlogging.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PWPe0
- Outcome
- 1000-kernel weighte0
- Direction
- increasede0
- Qualifier
- under post-anthesis waterlogginge0
- Comparator
- non-pretreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP significantly increased biomass,harvest index,1000-kernel weight,and consequently improved grain yield of wheat under post-anthesis waterlogging,compared with the non-pretreated plants.”
Claim · model-written summary
Pre-anthesis waterlogging pretreatment increased wheat grain yield under post-anthesis waterlogging.
- Taxon
- wheatTriticum aestivume0
- Treatment
- PWPe0
- Outcome
- grain yielde0
- Direction
- improvede0
- Qualifier
- under post-anthesis waterlogginge0
- Comparator
- non-pretreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP significantly increased biomass,harvest index,1000-kernel weight,and consequently improved grain yield of wheat under post-anthesis waterlogging,compared with the non-pretreated plants.”
Claim · model-written summary
Pretreatment enhanced post-anthesis nitrogen accumulation and its contribution to grain nitrogen.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe0
- Outcome
- post-anthesis nitrogen accumulation and its contribution to grain nitrogene0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP also enhanced post-anthesis nitrogen accumulation and its contribution to grain nitrogen”
t0“wheat”
Claim · model-written summary
Pretreatment decreased redistribution of pre-anthesis nitrogen and its contribution to grain nitrogen.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe1
- Outcome
- redistribution of nitrogen accumulated before anthesis as well as the contribution to grain nitrogene0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while decreased the redistribution of nitrogen accumulated before anthesis as well as the contribution to grain nitrogen”
t0“wheat”
e1“PWP also enhanced post-anthesis nitrogen accumulation”
Claim · model-written summary
Pretreatment increased grain globulin, flour dry gluten, and wet gluten contents.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe0
- Outcome
- contents of globulin,flour dry gluten,wet glutene0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP caused significant increases in contents of globulin,flour dry gluten,wet gluten and sedimentation volume”
t0“wheat”
Claim · model-written summary
Pretreatment increased sedimentation volume.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe0
- Outcome
- sedimentation volumee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP caused significant increases in contents of globulin,flour dry gluten,wet gluten and sedimentation volume”
t0“wheat”
Claim · model-written summary
Pretreatment reduced grain albumin, gliadin, and glutelin contents.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- graine0
- Treatment
- PWPe1
- Outcome
- contents of albumin,gliadin,gluteline0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulted in reductions in the contents of albumin,gliadin,glutelin and total protein in the grain”
t0“wheat”
e1“PWP also enhanced post-anthesis nitrogen accumulation”
Claim · model-written summary
Pretreatment reduced total grain protein content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe1
- Outcome
- total protein in the graine0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulted in reductions in the contents of albumin,gliadin,glutelin and total protein in the grain”
t0“wheat”
e1“PWP also enhanced post-anthesis nitrogen accumulation”
Claim · model-written summary
Pretreatment increased amylase and total starch contents.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe0
- Outcome
- contents of amylase and total starche0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP increased contents of amylase and total starch”
t0“wheat”
Claim · model-written summary
Pretreatment increased falling number.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe0
- Outcome
- falling numbere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP increased contents of amylase and total starch,and falling number”
t0“wheat”
Claim · model-written summary
Pretreatment enhanced peak, holding trough, and final viscosity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe1
- Outcome
- peak viscosity,holding trough viscositye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced peak viscosity,holding trough viscosity,breakdown,final viscosity,setback and peak time”
t0“wheat”
e1“PWP also enhanced post-anthesis nitrogen accumulation”
Claim · model-written summary
Pretreatment enhanced breakdown, setback, and peak time.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe1
- Outcome
- breakdown,final viscosity,setback and peak timee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced peak viscosity,holding trough viscosity,breakdown,final viscosity,setback and peak time”
t0“wheat”
e1“PWP also enhanced post-anthesis nitrogen accumulation”
Claim · model-written summary
Pretreatment had no significant effect on pasting temperature.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PWPe0
- Outcome
- pasting temperaturee0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PWP did not significantly affect the pasting temperature”
t0“wheat”
The same questions in other papers
flooding · soil: physics · Triticum aestivum (wheat)Results differ
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
1 paper more in this group
See all 5 papers →flooding · nutrient: content · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 18 in the opposite direction
- negative
- negative
- negative
17 papers more in this group
See all 21 papers →flooding · growth · Triticum aestivum (wheat)Positive and negative results
16 papers in the same direction as this paper · 64 in the opposite direction
- negative
- negative
- negative
77 papers more in this group
See all 81 papers →flooding · yield · Triticum aestivum (wheat)Positive and negative results
16 papers in the same direction as this paper · 84 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
98 papers more in this group
See all 102 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.