Claim · model-written summary
Under combined WL/NaCl stress, shoot K+ concentration was reduced to 411±92 µmol g-1 DW compared with control.
- Taxon
- barley
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Hordeum vulgaree0 - Treatment
- combined WL/NaCl stressese2
- Outcome
- shoot K+ concentratione1
- Direction
- reducede1
- Value
- 411±92µmolg-1 DWe2
- Comparator
- controle2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“12 barley varieties contrasting in salinity stress tolerance”
e1“The shoot biomass, chlorophyll content, maximum photochemical efficiency of PSII and shoot K+ concentration were significantly reduced under WL/NaCl conditions, whereas shoot Na+ concentration increased”
e2“K+ concentrations were 1378±66, 1260±74, 1270±79 and 411±92µmolg-1 DW under control, NaCl, WL and combined WL/NaCl stresses respectively”
Title
Zhinous Falakboland; Meixue Zhou; Fanrong Zeng; et al. Functional Plant Biology 2017. doi:10.1071/fp16385
Other claims from this paper (15)
- Intervention effect Combined WL/NaCl stress caused much greater stress damage symptoms than separate stresses.
- Intervention effect Under WL/NaCl conditions, shoot biomass, chlorophyll content and maximum photochemical efficiency of PSII were significantly reduced.
- Intervention effect Under combined WL/NaCl stress, shoot Na+ concentration increased to 2733±248 µmol g-1 DW compared with control conditions.
- Intervention effect Under NaCl stress, shoot Na+ concentration increased to 1519±123 compared with control conditions.
- Intervention effect Under waterlogging, shoot Na+ concentration increased to 179±11 compared with control conditions.
- Intervention effect Under NaCl, average fresh weight was reduced to 73±2 percent of the control.
- Intervention effect Under waterlogging, average fresh weight was reduced to 52±1 percent of the control.
- Intervention effect Under combined WL/NaCl stress, average fresh weight was reduced to 23±2 percent of the control.
- Intervention effect Plants under salinity stress had lower damage indexes than under waterlogging.
- Intervention effect The adverse effect of WL/NaCl stress was much greater in salt-sensitive varieties than in more tolerant varieties.
- Association Fv/Fm showed the highest correlation with the stress damage index under WL/NaCl conditions (r=-0.751) among the measured physiological traits.
- Recommendation The authors nominate chlorophyll fluorescence Fv/Fm as a good parameter to rank the tolerance of barley varieties.
- Association No significant correlation was found between overall salinity stress tolerance and shoot Na+ accumulation after 15 days of 250mM NaCl stress.
- Association Under combined salinity and WL stress, shoot Na+ accumulation showed a negative correlation with the extent of salinity damage.
- Mechanism Reduced K+ under combined WL/NaCl stress, rather than stress-induced shoot Na+ accumulation, was the most critical feature determining overall plant performance.