Abstract
Salt buildup in agricultural soils threatens irrigation agriculture in arid and semiarid regions of the world. Development of salt resistant crops may allow increased production in areas plagued by salt. Although ample sources of genetic diversity exist for most of the major crops, adequate screening methods for isolating salt‐resistant lines have yet to be developed. Wheat was chosen as a test case to investigate the current availability of salt‐resistant germplasm in the world collection. Over 5000 accessions of hexaploid wheat were screened in solution culture salinized with sea salt. Screening at 85% seawater yielded 312 individual selections capable of vigorous growth at germination and emergence. These were recovered and transferred to nonsaline conditions for seed multiplication. Subsequent screening of the next generation was done over the entire life cycle at 50% seawater, resulting in the isolation of 29 salt‐resistant lines. Salt‐sensitive lines were visually evaluated for uniformity of leaf damage at 25% seawater. Three resistant and two sensitive selections were compared with ‘Anza’ and ‘Kharchia’ for biomass production in solution cultures salinized to 20, 40, and 60% seawater. At the highest salinity, average biomass production was 6.4% of the controls for the resistant selections, 5.9% for ‘Kharchia’, 3.7% for ‘Anza’, and 1.6% for the sensitive selections. These results indicate that screening wheat at high salinities over a single generation can be effective in identifying salt‐resistant genotypes.
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Claims 7
Claim · model-written summary
Screening at 85% seawater produced 312 vigorous selections.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- 85% seawatere0
- Outcome
- individual selections capable of vigorous growth at germination and emergencee0
- Value
- 312 individual selectionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Screening at 85% seawater yielded 312 individual selections capable of vigorous growth at germination and emergence.”
e1“Wheat was chosen”
Claim · model-written summary
Full life cycle screening at 50% seawater isolated 29 resistant lines.
- Taxon
- wheatTriticum aestivume1
- Treatment
- 50% seawatere0
- Outcome
- isolation of 29 salt‐resistant linese0
- Value
- 29 salt‐resistant linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Subsequent screening of the next generation was done over the entire life cycle at 50% seawater, resulting in the isolation of 29 salt‐resistant lines.”
e1“Wheat was chosen”
Claim · model-written summary
Resistant selections produced 6.4% of control biomass at the highest salinity.
- Taxon
- wheatTriticum aestivume1
- Material
- resistant selectionse0
- Treatment
- highest salinitye0
- Outcome
- average biomass productione0
- Value
- 6.4%e0
- Comparator
- controlse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest salinity, average biomass production was 6.4% of the controls for the resistant selections, 5.9% for ‘Kharchia’, 3.7% for ‘Anza’, and 1.6% for the sensitive selections.”
e1“Wheat was chosen”
Claim · model-written summary
Kharchia produced 5.9% of control biomass at the highest salinity.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘Kharchia’e0
- Treatment
- highest salinitye0
- Outcome
- average biomass productione0
- Value
- 5.9%e0
- Comparator
- controlse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest salinity, average biomass production was 6.4% of the controls for the resistant selections, 5.9% for ‘Kharchia’, 3.7% for ‘Anza’, and 1.6% for the sensitive selections.”
e1“Wheat was chosen”
Claim · model-written summary
Anza produced 3.7% of control biomass at the highest salinity.
- Taxon
- wheatTriticum aestivume1
- Material
- ‘Anza’e0
- Treatment
- highest salinitye0
- Outcome
- average biomass productione0
- Value
- 3.7%e0
- Comparator
- controlse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest salinity, average biomass production was 6.4% of the controls for the resistant selections, 5.9% for ‘Kharchia’, 3.7% for ‘Anza’, and 1.6% for the sensitive selections.”
e1“Wheat was chosen”
Claim · model-written summary
Sensitive selections produced 1.6% of control biomass at the highest salinity.
- Taxon
- wheatTriticum aestivume1
- Material
- sensitive selectionse0
- Treatment
- highest salinitye0
- Outcome
- average biomass productione0
- Value
- 1.6%e0
- Comparator
- controlse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the highest salinity, average biomass production was 6.4% of the controls for the resistant selections, 5.9% for ‘Kharchia’, 3.7% for ‘Anza’, and 1.6% for the sensitive selections.”
e1“Wheat was chosen”
Claim · model-written summary
One generation of high salinity screening can identify resistant wheat genotypes.
- Taxon
- wheatTriticum aestivume0
- Outcome
- effective in identifying salt‐resistant genotypese0
- Value
- single generatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results indicate that screening wheat at high salinities over a single generation can be effective in identifying salt‐resistant genotypes.”
The same questions in other papers
salinity · yield · Triticum aestivum (wheat)Positive and negative results
196 papers in the same direction as this paper · 30 in the opposite direction
- positive
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See all 227 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.