Abstract
Experiments of subsurface waterlogging following surface waterlogging related to cotton were done,and photosynthetic indices of functional leaf of the crop were observed during watery stress and after that phase.The results showed that the relevant indices such as relative value of chlorophyll(Rc),neat photosynthetic velocity(Pn),water use efficiency of leaf(WUEL) are reduced gradually along with increase of the extent of subsurface waterlogging after surface waterlogging,while stomatal conductance of leaf(Gs) is towards increase,reduction of output was more than 22%,cotton yield of the most serious treatment reduced to a half.According to the trial results,and for purpose of cotton plants to restore their normal growth,the paper suggested that depressing the water level to 80 cm of ground in 3 to 6 days,and fertilizing into cotton field should be conducted moderately at the 5th day or 6th day after surface waterlogging to be eliminated.
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Claims 8
Claim · model-written summary
Leaf chlorophyll declined as subsurface waterlogging increased.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- subsurface waterlogging after surface waterlogginge0
- Outcome
- relative value of chlorophyll(Rc)e0
- Direction
- reduced graduallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative value of chlorophyll(Rc),neat photosynthetic velocity(Pn),water use efficiency of leaf(WUEL) are reduced gradually along with increase of the extent of subsurface waterlogging after surface waterlogging”
t0“Cotton”
Claim · model-written summary
Leaf net photosynthesis declined with increasing subsurface waterlogging.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- subsurface waterlogging after surface waterlogginge0
- Outcome
- neat photosynthetic velocity(Pn)e0
- Direction
- reduced graduallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative value of chlorophyll(Rc),neat photosynthetic velocity(Pn),water use efficiency of leaf(WUEL) are reduced gradually along with increase of the extent of subsurface waterlogging after surface waterlogging”
t0“Cotton”
Claim · model-written summary
Leaf water use efficiency declined with increasing subsurface waterlogging.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- subsurface waterlogging after surface waterlogginge0
- Outcome
- water use efficiency of leaf(WUEL)e0
- Direction
- reduced graduallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative value of chlorophyll(Rc),neat photosynthetic velocity(Pn),water use efficiency of leaf(WUEL) are reduced gradually along with increase of the extent of subsurface waterlogging after surface waterlogging”
t0“Cotton”
Claim · model-written summary
Leaf stomatal conductance increased.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- stomatal conductance of leaf(Gs)e0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal conductance of leaf(Gs) is towards increase”
t0“Cotton”
Claim · model-written summary
Output fell by more than 22%.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- outpute0
- Direction
- reductione0
- Value
- more than 22%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduction of output was more than 22%”
t0“Cotton”
Claim · model-written summary
The most severe treatment halved cotton yield.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- the most serious treatmente0
- Outcome
- cotton yielde0
- Direction
- reducede0
- Value
- a halfe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton yield of the most serious treatment reduced to a half”
t0“Cotton”
Claim · model-written summary
The authors recommend lowering the water level to 80 cm within 3 to 6 days after surface waterlogging.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- depressing the water level to 80 cm of ground in 3 to 6 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“depressing the water level to 80 cm of ground in 3 to 6 days”
t0“Cotton”
Claim · model-written summary
The authors recommend moderate fertilization on day 5 or 6 after surface waterlogging ends.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- fertilizing into cotton field should be conducted moderately at the 5th day or 6th day after surface waterlogging to be eliminatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizing into cotton field should be conducted moderately at the 5th day or 6th day after surface waterlogging to be eliminated”
t0“Cotton”
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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.