Abstract
Screening of crops for tolerance can strengthen breeding programs by identifying genotypes with increased tolerance and yield potential. The main objective of the present study was to analyze salt tolerance of 14 wheat genotypes originating from different geographical locations (Austria, Azerbaijan and Serbia) under well-watered and water limited conditions by using high-throughput shoot and root phenotyping platforms. Comparative investigations of various morphological, physiological, biochemical and enzymatic responses concerned with salt and drought tolerance were performed at different developmental stages. Our results show that the adverse effects of salt stress are enhanced under water limitation. Water use efficiency remains unaffected by salt stress in well performing wheat lines, e.g. Capo, but drops significantly in salt sensitive lines, e.g. Azamatili 95. Analysis of gas exchange parameters during biomass accumulation and grain filling period show that biomass accumulation and grain production is roughly correlated with photosynthetic efficiency. Proline is an important osmoprotectant whose amount was significantly increased under salt plus drought stress, and also to a smaller extent under drought stress alone, while the applied salt stress alone had negligible effect on the proline content. It is concluded that the co-occurrence of saline and water limited conditions induce large extent of biomass and grain yield loss in wheat, which can be partly reversed by providing well-watered conditions if it is practically feasible. We could also identify wheat lines which show higher tolerance to combined effects of salt and drought, which demonstrates the potential of high throughput plant phenotyping in breeding for drought and salinity stress tolerance in crop plants.
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Claims 11
Claim · model-written summary
Water limitation enhanced adverse effects of salt stress.
- Treatment
- salt stresse0
- Outcome
- adverse effects of salt stresse0
- Direction
- enhancede0
- Comparator
- water limitatione0
Not reportedTaxon
Verbatim
e0“the adverse effects of salt stress are enhanced under water limitation.”
Claim · model-written summary
Salt stress did not affect water use efficiency in well performing lines such as Capo.
- Taxon
- wheat
Triticum aestivume0 - Material
- Capoe0
- Treatment
- salt stresse0
- Outcome
- Water use efficiencye0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water use efficiency remains unaffected by salt stress in well performing wheat lines, e.g. Capo”
Claim · model-written summary
Salt stress significantly lowered water use efficiency in salt sensitive lines such as Azamatili 95.
Not reportedTaxonTreatmentComparator
Verbatim
e0“but drops significantly in salt sensitive lines, e.g. Azamatili 95.”
t0“Water use efficiency remains unaffected by salt stress in well performing wheat lines”
Claim · model-written summary
Biomass accumulation and grain production were roughly correlated with photosynthetic efficiency.
- Outcome
- biomass accumulation and grain productione0
- Qualifier
- roughlye0
- Comparator
- photosynthetic efficiencye0
Not reportedTaxonDirection
Verbatim
e0“biomass accumulation and grain production is roughly correlated with photosynthetic efficiency.”
Claim · model-written summary
Salt plus drought stress significantly increased proline content.
Not reportedTaxonComparator
Verbatim
e0“Proline is an important osmoprotectant whose amount was significantly increased under salt plus drought stress”
Claim · model-written summary
Drought alone increased proline content to a smaller extent.
Not reportedTaxonComparator
Verbatim
e0“and also to a smaller extent under drought stress alone”
t0“the proline content”
Claim · model-written summary
Salt stress alone had negligible effect on proline content.
Not reportedTaxonComparator
Verbatim
e0“the applied salt stress alone had negligible effect on the proline content.”
Claim · model-written summary
Combined salinity and water limitation caused large biomass loss.
- Taxon
- wheatTriticum aestivume0
- Treatment
- saline and water limited conditionse0
- Outcome
- biomasse0
- Direction
- losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the co-occurrence of saline and water limited conditions induce large extent of biomass and grain yield loss in wheat”
Claim · model-written summary
Combined salinity and water limitation caused large grain yield loss.
- Taxon
- wheatTriticum aestivume0
- Treatment
- saline and water limited conditionse0
- Outcome
- grain yielde0
- Direction
- losse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the co-occurrence of saline and water limited conditions induce large extent of biomass and grain yield loss in wheat”
Claim · model-written summary
Well watered conditions could partly reverse combined stress losses.
Not reportedTaxonComparator
Verbatim
e0“which can be partly reversed by providing well-watered conditions if it is practically feasible.”
Claim · model-written summary
The study identified wheat lines with higher tolerance to combined salt and drought.
- Taxon
- wheatTriticum aestivume0
- Outcome
- higher tolerance to combined effects of salt and droughte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We could also identify wheat lines which show higher tolerance to combined effects of salt and drought”
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See all 377 papers →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.