Abstract
Salinity is one of the environmental factors that has a critical influence on the germination of halophyte seeds and plant establishment. Salinity affects imbibition, germination and root elongation. However, the way in which NaCl exerts its influence on these vital processes, whether it is through an osmotic effect or a specific ion toxicity, is still not resolved. Dimorphic seeds of the halophytes Atriplex prostrata and A. patula were treated with various iso-osmotic solutions of NaCl and polyethylene glycol (PEG). For each treatment, imbibition, germination rate, percent germination, germination recovery and nuclear area of root tip cells were compared. Higher concentrations of NaCl (-1.0 MPa) were more inhibitory to imbibition, germination and seedling root elongation than iso-osmotic PEG solutions. All seeds recovered from a pre-treatment with -2.0 MPa NaCl and PEG solutions, except large seeds of A. prostrata which failed to germinate following transfer from -2.0 MPa NaCl. NaCl caused a greater increase in nuclear volume than iso-osmotic PEG solutions. These data suggest that the influence of NaCl is a combination of an osmotic effect and a specific ion effect.Copyright 1998 Annals of Botany Company
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Claims 7
Claim · model-written summary
At -1.0 MPa, NaCl inhibited seed imbibition more than iso-osmotic PEG.
- Treatment
- NaCl (-1.0 MPa)e0
- Outcome
- imbibitione0
- Direction
- more inhibitorye0
- Comparator
- iso-osmotic PEG solutionse0
AtriplexOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentrations of NaCl (-1.0 MPa) were more inhibitory to imbibition, germination and seedling root elongation than iso-osmotic PEG solutions.”
t0“Atriplex”
Claim · model-written summary
At -1.0 MPa, NaCl inhibited germination more than iso-osmotic PEG.
- Treatment
- NaCl (-1.0 MPa)e0
- Outcome
- germinatione0
- Direction
- more inhibitorye0
- Comparator
- iso-osmotic PEG solutionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentrations of NaCl (-1.0 MPa) were more inhibitory to imbibition, germination and seedling root elongation than iso-osmotic PEG solutions.”
t0“Atriplex”
Claim · model-written summary
At -1.0 MPa, NaCl inhibited seedling root elongation more than iso-osmotic PEG.
- Treatment
- NaCl (-1.0 MPa)e0
- Outcome
- seedling root elongatione0
- Direction
- more inhibitorye0
- Comparator
- iso-osmotic PEG solutionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher concentrations of NaCl (-1.0 MPa) were more inhibitory to imbibition, germination and seedling root elongation than iso-osmotic PEG solutions.”
t0“Atriplex”
Claim · model-written summary
Seeds recovered after pretreatment with -2.0 MPa NaCl or PEG, apart from large A. prostrata seeds after NaCl.
- Taxon
- A. prostrata
Atriplex prostratae0 - Treatment
- -2.0 MPa NaCl and PEG solutionse0
- Outcome
- All seeds recoverede0
- Qualifier
- except large seeds of A. prostrata which failed to germinate following transfer from -2.0 MPa NaCle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All seeds recovered from a pre-treatment with -2.0 MPa NaCl and PEG solutions, except large seeds of A. prostrata which failed to germinate following transfer from -2.0 MPa NaCl.”
t0“Atriplex”
Claim · model-written summary
Large A. prostrata seeds failed to germinate after transfer from -2.0 MPa NaCl.
- Taxon
- A. prostrataAtriplex prostratae0
- Material
- large seedse0
- Treatment
- -2.0 MPa NaCle0
- Outcome
- failed to germinatee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except large seeds of A. prostrata which failed to germinate following transfer from -2.0 MPa NaCl.”
t0“Atriplex”
Claim · model-written summary
NaCl increased root-tip nuclear volume more than iso-osmotic PEG.
- Treatment
- NaCle0
- Outcome
- nuclear volumee0
- Direction
- greater increasee0
- Comparator
- iso-osmotic PEG solutionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl caused a greater increase in nuclear volume than iso-osmotic PEG solutions.”
t0“Atriplex”
Claim · model-written summary
The authors interpreted NaCl effects as combining osmotic and ion-specific effects.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These data suggest that the influence of NaCl is a combination of an osmotic effect and a specific ion effect.”
t0“Atriplex”
The same questions in other papers
sodium chloride · growth · Atriplex prostrata (triangle orache)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
2 papers more in this group
See all 6 papers →sodium chloride · growth · AtriplexResults agree
2 papers in the same direction as this paper
- negative
- negative
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.