Abstract
The effect of salinity on primary photochemical reactions (using JIP-test) in six sweet sorghum genotypes was tested. An increase in salt concentrations induced significantly the accumulation of proline and caused a decline in leaf osmotic potential. Except for 100 mM NaCl concentration, salinity significantly decreased chlorophyll content and photosynthetic efficiency of plants. Increasing salinity led to a higher accumulation of QB-nonreducing PSII reaction centers. K-step in OJIP fluorescence transient was observed for the most sensitive genotypes under the high NaCl concentration. The studied sorghum genotypes responded differently to salinity stress. Thus, the study helps understand the plant tolerance mechanisms of different sweet sorghum genotypes to increasing salinity stress. The study also confirmed that the use of JIP-test is suitable for the identification of sorghum genotypes according to their growth under salinity stress.
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Claims 8
Claim · model-written summary
Higher salinity significantly increased proline accumulation.
- Taxon
- sweet sorghumt0
- Treatment
- salt concentrationse0
- Outcome
- accumulation of prolinee0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“An increase in salt concentrations induced significantly the accumulation of proline and caused a decline in leaf osmotic potential”
t0“sweet sorghum genotypes”
Claim · model-written summary
Higher salinity lowered leaf osmotic potential.
Not reportedComparator
Verbatim
e0“An increase in salt concentrations induced significantly the accumulation of proline and caused a decline in leaf osmotic potential”
t0“sweet sorghum genotypes”
Claim · model-written summary
Salinity significantly decreased chlorophyll content outside 100 mM NaCl.
- Taxon
- sweet sorghumt0
- Treatment
- salinitye0
- Outcome
- chlorophyll contente0
- Direction
- decreasede0
- Qualifier
- Except for 100 mM NaCl concentratione0
Not reportedComparator
Verbatim
e0“Except for 100 mM NaCl concentration, salinity significantly decreased chlorophyll content and photosynthetic efficiency of plants”
t0“sweet sorghum genotypes”
Claim · model-written summary
Salinity significantly decreased photosynthetic efficiency outside 100 mM NaCl.
- Taxon
- sweet sorghumt0
- Treatment
- salinitye0
- Outcome
- photosynthetic efficiencye0
- Direction
- decreasede0
- Qualifier
- Except for 100 mM NaCl concentratione0
Not reportedComparator
Verbatim
e0“Except for 100 mM NaCl concentration, salinity significantly decreased chlorophyll content and photosynthetic efficiency of plants”
t0“sweet sorghum genotypes”
Claim · model-written summary
Increasing salinity raised QB-nonreducing PSII reaction center accumulation.
- Taxon
- sweet sorghumt0
- Treatment
- Increasing salinitye0
- Outcome
- accumulation of QB-nonreducing PSII reaction centerse0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“Increasing salinity led to a higher accumulation of QB-nonreducing PSII reaction centers”
t0“sweet sorghum genotypes”
Claim · model-written summary
The K-step appeared in the most sensitive genotypes under high NaCl.
- Taxon
- sweet sorghumt0
- Outcome
- K-step in OJIP fluorescence transiente0
- Qualifier
- most sensitive genotypes under the high NaCl concentratione0
Not reportedDirection
Verbatim
e0“K-step in OJIP fluorescence transient was observed for the most sensitive genotypes under the high NaCl concentration”
t0“sweet sorghum genotypes”
Claim · model-written summary
Sorghum genotypes differed in salinity response.
- Outcome
- responded differently to salinity stresse0
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The studied sorghum genotypes responded differently to salinity stress”
Claim · model-written summary
JIP-test was suitable for identifying sorghum genotypes by growth under salinity.
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of JIP-test is suitable for the identification of sorghum genotypes according to their growth under salinity stress”
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