Abstract
The effects of waterlogging to growth and development of root system at booting stage,()~(32)P absorption and distribution,and senescence of root system were studied with soil column culture method,using 3 winter wheat cultivars with different waterlogging-resistance.Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant.Five days after treatment,the root dry weight,root system activity and SOD activity began to decrease,and the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) of root system rose.Ten days after treatment,the root dry weight,root system activity and SOD activity decreased sharply,while the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) of root system increased rapidly.Till the 20th day of treatment,the root system activity and SOD activity reached the lowest levels,and the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) reached the highest.With the process of waterloging stress,the root system was damaged even severely duo to anaerobic respiration,indicating the main physiological factor for wheat premature senescence.The results also showed that waterlogging affected()~(32)P absorption,transportation and distribution in wheat at booting stage,and speeded up senescence of root system consequently.
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Claims 10
Claim · model-written summary
Early-booting waterlogging slightly increased root dry weight per plant.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- Waterlogging at early booting stagee1
- Outcome
- dry weight(DW) of root system per plante1
- Direction
- increased a littlee1
- Qualifier
- 05 days after treatmente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
Claim · model-written summary
Five days after waterlogging, root dry weight, root system activity and SOD activity began to decrease.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Waterlogging at early booting stagee1
- Outcome
- the root dry weight,root system activity and SOD activitye2
- Direction
- began to decreasee2
- Qualifier
- Five days after treatmente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
e2“Five days after treatment,the root dry weight,root system activity and SOD activity began to decrease”
Claim · model-written summary
Five days after waterlogging, membrane permeability and MDA content of roots began to rise.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Waterlogging at early booting stagee1
- Outcome
- relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content)e3
- Direction
- rosee3
- Qualifier
- Five days after treatmente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
e2“Five days after treatment,the root dry weight,root system activity and SOD activity began to decrease”
e3“and the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) of root system rose”
Claim · model-written summary
Ten days after waterlogging, root dry weight, root system activity and SOD activity decreased sharply.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Waterlogging at early booting stagee1
- Outcome
- the root dry weight,root system activity and SOD activitye4
- Direction
- decreased sharplye4
- Qualifier
- Ten days after treatmente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
e4“Ten days after treatment,the root dry weight,root system activity and SOD activity decreased sharply,while the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) of root system increased rapidly”
Claim · model-written summary
Ten days after waterlogging, membrane permeability and MDA content of roots increased rapidly.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Waterlogging at early booting stagee1
- Outcome
- relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content)e5
- Direction
- increased rapidlye5
- Qualifier
- Ten days after treatmente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
e4“Ten days after treatment,the root dry weight,root system activity and SOD activity decreased sharply,while the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) of root system increased rapidly”
e5“while the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) of root system increased rapidly”
Claim · model-written summary
At 20 days, root system activity and SOD activity reached their lowest levels.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Waterlogging at early booting stagee1
- Outcome
- the root system activity and SOD activitye6
- Direction
- reached the lowest levelse6
- Qualifier
- Till the 20th day of treatmente6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
e6“Till the 20th day of treatment,the root system activity and SOD activity reached the lowest levels,and the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) reached the highest”
Claim · model-written summary
At 20 days, membrane permeability and MDA content of roots reached their highest levels.
- Taxon
- Winter WheatTriticum aestivumt0
- Treatment
- Waterlogging at early booting stagee1
- Outcome
- the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content)e6
- Direction
- reached the higheste6
- Qualifier
- Till the 20th day of treatmente6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Wheat”
e1“Waterlogging at early booting stage(05 days after treatment) increased a little dry weight(DW) of root system per plant”
e6“Till the 20th day of treatment,the root system activity and SOD activity reached the lowest levels,and the relative permeability of plasma membrane and membrane-lipid preoxidation level(MDA content) reached the highest”
Claim · model-written summary
Anaerobic respiration damaged the roots under waterlogging and is the main physiological factor for premature senescence of wheat.
- Taxon
- wheatTriticum aestivume7
- Outcome
- premature senescencee7
- Qualifier
- duo to anaerobic respiratione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“With the process of waterloging stress,the root system was damaged even severely duo to anaerobic respiration,indicating the main physiological factor for wheat premature senescence”
Claim · model-written summary
Waterlogging affected 32P absorption, transport and distribution in wheat at booting stage.
- Taxon
- wheatTriticum aestivume7
- Treatment
- waterlogginge7
- Outcome
- absorption,transportation and distributione7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“waterlogging affected()~(32)P absorption,transportation and distribution in wheat at booting stage,and speeded up senescence of root system consequently”
Claim · model-written summary
Waterlogging sped up senescence of the root system in wheat at booting stage.
- Taxon
- wheatTriticum aestivume7
- Treatment
- waterlogginge7
- Outcome
- senescence of root systeme7
- Direction
- speeded upe7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“waterlogging affected()~(32)P absorption,transportation and distribution in wheat at booting stage,and speeded up senescence of root system consequently”
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