Abstract
The effect of different durations of waterlogging at different growth stages, on the growth and nutrient metabolism of the root system of winter wheat was studied. The results indicated that short term waterlogging before the booting stage could stimulate the root system to produce more secondary roots in the top soil, increase the N content and proportion of N distributed to the root system, and the content of soluble of sugar, and elevate the C/N ratio. But prolonging of the waterlogging duration (WLD) could lead to decrease of all these attributes. After booting stage, waterlogging would invariably cause pronounced decrease of these characters, and the magnitude of the decrease became larger with the progress of the growth and development of the wheat plant. At all growth stages, the biomass, N accumulation, P accumulation, P content and P proportion of the root system would decrease with the prolonging of the WLD. This is more evident at teh filling stage, when waterlogging for 5 days could seriously handicap the growth and metabolism of the root system, and waterlogging for 10 days could reduce the N and P accumulation to more than 1/2 of those under normal conditions.
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Claims 11
Claim · model-written summary
Short-term waterlogging before the booting stage increased secondary root production in the top soil of winter wheat.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Organ / stage
- root systeme0
- Treatment
- short term waterlogging before the booting stagee0
- Outcome
- secondary rootse0
- Direction
- moree0
- Qualifier
- in the top soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e0“short term waterlogging before the booting stage could stimulate the root system to produce more secondary roots in the top soil”
Claim · model-written summary
Short-term waterlogging before the booting stage increased N content and the proportion of N distributed to the root system of winter wheat.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- root systeme1
- Treatment
- short term waterlogging before the booting stagee0
- Outcome
- N content and proportion of N distributed to the root systeme1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e0“short term waterlogging before the booting stage could stimulate the root system to produce more secondary roots in the top soil”
e1“increase the N content and proportion of N distributed to the root system, and the content of soluble of sugar, and elevate the C/N ratio”
Claim · model-written summary
Short-term waterlogging before the booting stage increased soluble sugar content in the root system of winter wheat.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- root systeme1
- Treatment
- short term waterlogging before the booting stagee0
- Outcome
- content of soluble of sugare1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e0“short term waterlogging before the booting stage could stimulate the root system to produce more secondary roots in the top soil”
e1“increase the N content and proportion of N distributed to the root system, and the content of soluble of sugar, and elevate the C/N ratio”
Claim · model-written summary
Short-term waterlogging before the booting stage elevated the C/N ratio of winter wheat.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- short term waterlogging before the booting stagee0
- Outcome
- C/N ratioe1
- Direction
- elevatee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e0“short term waterlogging before the booting stage could stimulate the root system to produce more secondary roots in the top soil”
e1“increase the N content and proportion of N distributed to the root system, and the content of soluble of sugar, and elevate the C/N ratio”
Claim · model-written summary
Prolonged waterlogging decreased all these attributes of winter wheat.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- prolonging of the waterlogging duration (WLD)e2
- Outcome
- all these attributese2
- Direction
- decreasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e2“But prolonging of the waterlogging duration (WLD) could lead to decrease of all these attributes”
Claim · model-written summary
After booting stage, waterlogging caused a pronounced decrease of these characters in winter wheat.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- After booting stage, waterlogginge3
- Outcome
- these characterse3
- Direction
- pronounced decreasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e3“After booting stage, waterlogging would invariably cause pronounced decrease of these characters, and the magnitude of the decrease became larger with the progress of the growth and development of the wheat plant”
Claim · model-written summary
The magnitude of the decrease caused by waterlogging after booting stage became larger as the wheat plant developed.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- After booting stage, waterlogginge3
- Outcome
- magnitude of the decreasee3
- Direction
- became largere3
- Qualifier
- with the progress of the growth and development of the wheat plante3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e3“After booting stage, waterlogging would invariably cause pronounced decrease of these characters, and the magnitude of the decrease became larger with the progress of the growth and development of the wheat plant”
Claim · model-written summary
Prolonged waterlogging decreased biomass, N accumulation and P accumulation of the winter wheat root system at all growth stages.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- root systeme4
- Treatment
- prolonging of the WLDe4
- Outcome
- biomass, N accumulation, P accumulatione4
- Direction
- decreasee4
- Qualifier
- At all growth stagese4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e4“At all growth stages, the biomass, N accumulation, P accumulation, P content and P proportion of the root system would decrease with the prolonging of the WLD”
Claim · model-written summary
Prolonged waterlogging decreased P content and P proportion of the winter wheat root system at all growth stages.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- root systeme4
- Treatment
- prolonging of the WLDe4
- Outcome
- P content and P proportione4
- Direction
- decreasee4
- Qualifier
- At all growth stagese4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e4“At all growth stages, the biomass, N accumulation, P accumulation, P content and P proportion of the root system would decrease with the prolonging of the WLD”
Claim · model-written summary
Waterlogging for 5 days at the filling stage seriously handicapped the growth and metabolism of the wheat root system.
- Taxon
- Winter WheatTriticum aestivumt0
- Organ / stage
- root systeme5
- Treatment
- waterlogging for 5 dayse5
- Outcome
- growth and metabolism of the root systeme5
- Direction
- seriously handicape5
- Qualifier
- filling stagee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e5“This is more evident at teh filling stage, when waterlogging for 5 days could seriously handicap the growth and metabolism of the root system, and waterlogging for 10 days could reduce the N and P accumulation to more than 1/2 of those under normal conditions”
Claim · model-written summary
Waterlogging for 10 days at the filling stage reduced N and P accumulation of winter wheat roots to more than half of normal.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- waterlogging for 10 dayse5
- Outcome
- N and P accumulatione5
- Direction
- reducee5
- Value
- more than 1/2e5
- Qualifier
- filling stagee5
- Comparator
- normal conditionse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“the Root System of Winter Wheat”
e5“This is more evident at teh filling stage, when waterlogging for 5 days could seriously handicap the growth and metabolism of the root system, and waterlogging for 10 days could reduce the N and P accumulation to more than 1/2 of those under normal conditions”
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