Abstract
Atriplex halimus L. is a native persistent perennial shrub that is used for revegetation of degraded rangeland because of its ability to cope with environmental stresses. Seedlings of Atriplex halimus L. were grown in sand culture for four weeks and then treated with half strength Hoagland solution containing 0, 50, 100 and 300 mM of NaCl and CaCl2 salts for twelve weeks. Results indicated that NaCl and CaCl2 salinity caused a significant reduction in both leaf water content and relative water content by values of 72.5% and 63.7% of that in control. Reductions in photosynthetic pigments were also observed ranging from 23 to 58% for chlorophyll a and b and 45% for carotenoids at 300mM salinity. Effect of NaCl was higher than that of CaCl2 on both water content and photosynthetic pigments. Leaves, stems, and roots dry weight and total biomass of atriplex was reduced by values ranging from 35 to 49% when treated with 300mM CaCl2 and from 55 to 69% when treated with 300 mM NaCl. Ion partitioning between various plant parts was also affected by average salinity. Leaves accumulated higher levels of Ca, Na, Cl, and K than stems and roots. Calcium content was increased by four folds in leaves and stems and two folds in roots when treated with 300mM CaCl2. Similarly, Na and Cl were also accumulated in leaves and stems but not in roots. Results indicated that Atriplex halimus L. tolerates moderate salinity up to 100mM without any significant impact on plant growth. Increased salinities greater than 300 mM starts to reduce plant growth. Presence of calcium in solution could ameliorate the problems caused by high salinity.
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Claims 15
Claim · model-written summary
Salinity significantly reduced leaf water content to 72.5% of control.
- Taxon
- Atriplex halimus L.
Atriplex halimust0 - Treatment
- NaCl and CaCl2 salinitye0
- Outcome
- leaf water contente0
- Direction
- reductione0
- Value
- 72.5%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl and CaCl2 salinity caused a significant reduction in both leaf water content and relative water content by values of 72.5% and 63.7% of that in control”
t0“Atriplex halimus L.”
Claim · model-written summary
Salinity significantly reduced relative water content to 63.7% of control.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Treatment
- NaCl and CaCl2 salinitye0
- Outcome
- relative water contente0
- Direction
- reductione0
- Value
- 63.7%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl and CaCl2 salinity caused a significant reduction in both leaf water content and relative water content by values of 72.5% and 63.7% of that in control”
t0“Atriplex halimus L.”
Claim · model-written summary
At 300 mM salinity, chlorophyll a and b declined by 23 to 58%.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Treatment
- 300mM salinitye0
- Outcome
- chlorophyll a and be0
- Direction
- Reductionse0
- Value
- 23 to 58%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reductions in photosynthetic pigments were also observed ranging from 23 to 58% for chlorophyll a and b and 45% for carotenoids at 300mM salinity”
t0“Atriplex halimus L.”
Claim · model-written summary
At 300 mM salinity, carotenoids declined by 45%.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Treatment
- 300mM salinitye0
- Outcome
- carotenoidse0
- Direction
- Reductionse0
- Value
- 45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reductions in photosynthetic pigments were also observed ranging from 23 to 58% for chlorophyll a and b and 45% for carotenoids at 300mM salinity”
t0“Atriplex halimus L.”
Claim · model-written summary
NaCl affected water content and photosynthetic pigments more than CaCl2.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Treatment
- NaCle0
- Outcome
- water content and photosynthetic pigmentse0
- Direction
- highere0
- Comparator
- CaCl2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effect of NaCl was higher than that of CaCl2 on both water content and photosynthetic pigments”
t0“Atriplex halimus L.”
Claim · model-written summary
At 300 mM CaCl2, leaves, stems and roots dry weight and total biomass declined by 35 to 49%.
- Treatment
- 300mM CaCl2e0
- Outcome
- Leaves, stems, and roots dry weight and total biomasse0
- Direction
- reducede0
- Value
- 35 to 49%e0
AtriplexNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves, stems, and roots dry weight and total biomass of atriplex was reduced by values ranging from 35 to 49% when treated with 300mM CaCl2 and from 55 to 69% when treated with 300 mM NaCl”
Claim · model-written summary
At 300 mM NaCl, leaves, stems and roots dry weight and total biomass declined by 55 to 69%.
- Treatment
- 300 mM NaCle0
- Outcome
- Leaves, stems, and roots dry weight and total biomasse0
- Direction
- reducede0
- Value
- 55 to 69%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves, stems, and roots dry weight and total biomass of atriplex was reduced by values ranging from 35 to 49% when treated with 300mM CaCl2 and from 55 to 69% when treated with 300 mM NaCl”
Claim · model-written summary
Salinity affected ion partitioning among plant parts.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Treatment
- average salinitye0
- Outcome
- Ion partitioninge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ion partitioning between various plant parts was also affected by average salinity”
t0“Atriplex halimus L.”
Claim · model-written summary
Leaves accumulated more Ca, Na, Cl and K than stems and roots.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Organ / stage
- Leavese0
- Outcome
- levels of Ca, Na, Cl, and Ke0
- Direction
- highere0
- Comparator
- stems and rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves accumulated higher levels of Ca, Na, Cl, and K than stems and roots”
t0“Atriplex halimus L.”
Claim · model-written summary
At 300 mM CaCl2, calcium content increased fourfold in leaves and stems.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Organ / stage
- leaves and stemse0
- Treatment
- 300mM CaCl2e0
- Outcome
- Calcium contente0
- Direction
- increasede0
- Value
- four foldse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium content was increased by four folds in leaves and stems and two folds in roots when treated with 300mM CaCl2”
t0“Atriplex halimus L.”
Claim · model-written summary
At 300 mM CaCl2, calcium content increased twofold in roots.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Organ / stage
- rootse0
- Treatment
- 300mM CaCl2e0
- Outcome
- Calcium contente0
- Direction
- increasede0
- Value
- two foldse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium content was increased by four folds in leaves and stems and two folds in roots when treated with 300mM CaCl2”
t0“Atriplex halimus L.”
Claim · model-written summary
Na and Cl accumulated in leaves and stems but not roots.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Organ / stage
- leaves and stems but not in rootse0
- Outcome
- Na and Cle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Na and Cl were also accumulated in leaves and stems but not in roots”
t0“Atriplex halimus L.”
Claim · model-written summary
Atriplex halimus tolerated salinity up to 100 mM without significant growth impact.
- Taxon
- Atriplex halimus L.Atriplex halimuse0
- Treatment
- moderate salinity up to 100mMe0
- Outcome
- plant growthe0
- Direction
- without any significant impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Atriplex halimus L. tolerates moderate salinity up to 100mM without any significant impact on plant growth”
Claim · model-written summary
Salinity greater than 300 mM reduced plant growth.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Treatment
- salinities greater than 300 mMe0
- Outcome
- plant growthe0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased salinities greater than 300 mM starts to reduce plant growth”
t0“Atriplex halimus L.”
Claim · model-written summary
Calcium in solution could ameliorate high salinity effects.
- Taxon
- Atriplex halimus L.Atriplex halimust0
- Compound
- calciume0
- Outcome
- problems caused by high salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Presence of calcium in solution could ameliorate the problems caused by high salinity”
t0“Atriplex halimus L.”
The same questions in other papers
calcium chloride dihydrate · nutrient: content · Atriplex halimus (Mediterranean saltbush)Results agree
1 paper in the same direction as this paper
- positive
sodium chloride · growth · AtriplexResults agree
2 papers in the same direction as this paper
- negative
- negative
salinity · growth · Atriplex halimus (Mediterranean saltbush)Results differ
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →salinity · physiology: pigments · Atriplex halimus (Mediterranean saltbush)Positive and negative results
1 in the opposite direction
- positive
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.