Abstract
The aim is to examine the nutrient ion dynamics in a Vertisol soil undergoing waterlogging to ascertain whether soil solution concentration and/or nutrient uptake dynamics are the cause of boll shedding in cotton. Cotton was grown in pots, and the soil waterlogged after 76 days at which time injections of 33P and 86Rb were made to trace phosphorus (P) and potassium (K) dynamics. After seven days, waterlogging in the pots were drained and an injection of 32P was made to trace P dynamics during the recovery period. Redox fell rapidly during waterlogging, and soil solution concentrations of P, K, sodium (Na), and manganese (Mn) increased. Biomass accumulation was less in the waterlogged treatment than in the non-waterlogged control. In the 7-day recovery period, shoot biomass increased in the waterlogged treatment and root biomass weight continued to decline. Recovery of 33P was 10 times higher in the control than in the waterlogged treatment during the 7-day waterlogging period treatment. Uptake of 86Rb in the control treatment was more than twice that of the waterlogged treatment during this period. Uptake of both33P and 86Rb increased during recovery but remained higher in the control treatment. Uptake of 32P occurred during post-waterlogging but remained higher in the control treatment. Reduced uptake of P and K during waterlogging is most likely due to damage to the uptake mechanisms of the roots rather than a reduction in the concentration of nutrients in the soil solution under waterlogged conditions.
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Claims 10
Claim · model-written summary
Soil redox fell rapidly during waterlogging.
- Taxon
- Cotton
Gossypium hirsutume1 - Treatment
- waterlogginge0
- Outcome
- Redoxe0
- Direction
- felle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Redox fell rapidly during waterlogging”
e1“Cotton was grown in pots”
Claim · model-written summary
Soil solution concentrations of P, K, Na and Mn increased during waterlogging.
- Taxon
- CottonGossypium hirsutume1
- Treatment
- waterlogginge2
- Outcome
- soil solution concentrations of P, K, sodium (Na), and manganese (Mn)e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil solution concentrations of P, K, sodium (Na), and manganese (Mn) increased”
e1“Cotton was grown in pots”
e2“Redox fell rapidly during waterlogging”
Claim · model-written summary
Cotton accumulated less biomass under waterlogging than in the non-waterlogged control.
- Taxon
- CottonGossypium hirsutume1
- Treatment
- waterlogged treatmente0
- Outcome
- Biomass accumulatione0
- Direction
- lesse0
- Comparator
- non-waterlogged controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass accumulation was less in the waterlogged treatment than in the non-waterlogged control.”
e1“Cotton was grown in pots”
Claim · model-written summary
Cotton shoot biomass increased during seven days of recovery.
- Taxon
- CottonGossypium hirsutume1
- Organ / stage
- shoote0
- Treatment
- waterlogged treatmente0
- Outcome
- shoot biomasse0
- Direction
- increasede0
- Qualifier
- 7-day recovery periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the 7-day recovery period, shoot biomass increased in the waterlogged treatment”
e1“Cotton was grown in pots”
Claim · model-written summary
Cotton root biomass weight continued to decline during recovery.
- Taxon
- CottonGossypium hirsutume2
- Organ / stage
- roote0
- Outcome
- root biomass weighte0
- Direction
- declinee0
- Qualifier
- 7-day recovery periode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root biomass weight continued to decline”
e1“In the 7-day recovery period”
e2“Cotton was grown in pots”
Claim · model-written summary
Recovery of 33P was ten times higher in controls than in waterlogged cotton during the seven-day treatment.
- Taxon
- CottonGossypium hirsutume1
- Treatment
- waterlogged treatmente0
- Outcome
- Recovery of 33Pe0
- Direction
- highere0
- Value
- 10 timese0
- Qualifier
- 7-day waterlogging periode0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of 33P was 10 times higher in the control than in the waterlogged treatment during the 7-day waterlogging period treatment.”
e1“Cotton was grown in pots”
Claim · model-written summary
Control cotton took up more than twice as much 86Rb as waterlogged cotton during waterlogging.
- Taxon
- CottonGossypium hirsutume1
- Treatment
- waterlogged treatmente0
- Outcome
- Uptake of 86Rbe0
- Direction
- more than twicee0
- Value
- more than twicee0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of 86Rb in the control treatment was more than twice that of the waterlogged treatment during this period.”
e1“Cotton was grown in pots”
Claim · model-written summary
Uptake of both 33P and 86Rb increased during recovery but remained higher in controls.
- Taxon
- CottonGossypium hirsutume1
- Outcome
- Uptake of both33P and 86Rbe0
- Direction
- increasede0
- Qualifier
- during recoverye0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of both33P and 86Rb increased during recovery but remained higher in the control treatment.”
e1“Cotton was grown in pots”
Claim · model-written summary
Cotton took up 32P after waterlogging, but uptake remained higher in controls.
- Taxon
- CottonGossypium hirsutume1
- Outcome
- Uptake of 32Pe0
- Direction
- highere0
- Qualifier
- during post-waterlogginge0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake of 32P occurred during post-waterlogging but remained higher in the control treatment.”
e1“Cotton was grown in pots”
Claim · model-written summary
The authors attribute reduced P and K uptake during waterlogging to damage of root uptake mechanisms rather than lower soil nutrient concentrations.
- Taxon
- CottonGossypium hirsutume1
- Organ / stage
- rootse0
- Outcome
- Reduced uptake of P and Ke0
- Qualifier
- most likely due to damage to the uptake mechanisms of the rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced uptake of P and K during waterlogging is most likely due to damage to the uptake mechanisms of the roots rather than a reduction in the concentration of nutrients in the soil solution under waterlogged conditions.”
e1“Cotton was grown in pots”
The same questions in other papers
flooding · growth · Gossypium hirsutum (cotton)Results differ
19 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- positive
21 papers more in this group
See all 25 papers →flooding · nutrient: content · Gossypium hirsutum (cotton)Results agree
5 papers in the same direction as this paper
- negative
- negative
- no effect
2 papers more in this group
See all 6 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.