Abstract
Abstract Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars) reduced shoot and root growth, water use, and stem 45 Ca in seedlings of peach ( Prunus persica (L.) Batsch). Sucrose feeding through a leaf did not affect stem 45 Ca with or without osmotic stress. 45 Calcium uptake per milligram water used was not different at different solution osmotic potentials. A split-root study, with half the root system receiving 45 Ca and/or PEG, showed that if 45 Ca was supplied only to the water-stressed root half, 45 Ca uptake into stems was low regardless of whether the other root half was stressed or not. Results indicate that reduced stem Ca during water stress is probably not a direct result of decreased root energy needed for active uptake or reduced translocation out of the root. Calcium absorption appeared to be related to the amount of unsuberized root surface available for Ca uptake.
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Claims 8
Claim · model-written summary
PEG-induced water stress reduced shoot and root growth in peach seedlings.
- Taxon
- peach
Prunus persicae0 - Treatment
- Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars)e0
- Outcome
- shoot and root growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars) reduced shoot and root growth, water use, and stem 45 Ca in seedlings of peach ( Prunus persica (L.) Batsch)”
Claim · model-written summary
PEG-induced water stress reduced water use in peach seedlings.
- Taxon
- peachPrunus persicae0
- Treatment
- Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars)e0
- Outcome
- water usee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars) reduced shoot and root growth, water use, and stem 45 Ca in seedlings of peach ( Prunus persica (L.) Batsch)”
Claim · model-written summary
PEG-induced water stress reduced stem 45 Ca in peach seedlings.
- Taxon
- peachPrunus persicae0
- Treatment
- Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars)e0
- Outcome
- stem 45 Cae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol (PEG-4000)-induced water stress (—0.5 to —7.5 bars) reduced shoot and root growth, water use, and stem 45 Ca in seedlings of peach ( Prunus persica (L.) Batsch)”
Claim · model-written summary
Leaf sucrose feeding did not affect stem calcium under either osmotic condition.
- Taxon
- peachPrunus persicat0
- Treatment
- Sucrose feeding through a leafe0
- Outcome
- stem 45 Cae0
- Direction
- did not affecte0
- Comparator
- with or without osmotic stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sucrose feeding through a leaf did not affect stem 45 Ca with or without osmotic stress”
t0“Peach Seedlings”
Claim · model-written summary
Calcium uptake per water used did not differ across osmotic potentials.
- Taxon
- peachPrunus persicat0
- Treatment
- different solution osmotic potentialse0
- Outcome
- 45 Calcium uptake per milligram water usede0
- Direction
- not differente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“45 Calcium uptake per milligram water used was not different at different solution osmotic potentials”
t0“Peach Seedlings”
Claim · model-written summary
Calcium uptake into stems was low when calcium was supplied only to stressed roots, regardless of other-root stress.
- Taxon
- peachPrunus persicat0
- Treatment
- 45 Ca was supplied only to the water-stressed root halfe0
- Outcome
- 45 Ca uptake into stemse0
- Direction
- lowe0
- Comparator
- whether the other root half was stressed or note0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“if 45 Ca was supplied only to the water-stressed root half, 45 Ca uptake into stems was low regardless of whether the other root half was stressed or not”
t0“Peach Seedlings”
Claim · model-written summary
Reduced stem calcium during stress is probably not directly due to lower root energy or translocation.
- Taxon
- peachPrunus persicat0
- Treatment
- water stresse0
- Outcome
- reduced stem Cae0
- Qualifier
- probably not a direct result of decreased root energy needed for active uptake or reduced translocation out of the roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced stem Ca during water stress is probably not a direct result of decreased root energy needed for active uptake or reduced translocation out of the root”
t0“Peach Seedlings”
Claim · model-written summary
Calcium absorption appeared related to available unsuberized root surface.
- Taxon
- peachPrunus persicat0
- Organ / stage
- unsuberized root surfacee0
- Outcome
- Calcium absorptione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium absorption appeared to be related to the amount of unsuberized root surface available for Ca uptake”
t0“Peach Seedlings”
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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.