Abstract
Abstract Semi‐dwarf bread wheat ( Triticum aestivum L.) and durum wheat ( Triticum turgidum L., Durum Group) are often grown on saline soils in the western United States. Because of the lack of information on salinity effects on vegetative growth and seed yield of these two species, a 2‐yr field plot study was conducted. Six salinity treatments were imposed on a Holtville silty clay [clayey over loamy, montmorillonitic (calcareous), hyperthermic Typic Torrifluvent] by irrigating with waters salinized with NaCl and CaCl 2 (1:l by wt). Electrical conductivities of the irrigation waters were 1.5, 2.5, 5.0, 7.4, 9.9, and 12.4 dS/m the first year, and 1.5, 4.0, 8.0, 12.0, 16.1, and 20.5 dS/m the second year. Grain yield, vegetative growth, and germination were measured. Relative grain yields of one semi‐dwarf wheat cultivar and two durum cultivars were unaffected by soil salinity up to 8.6 and 5.9 dS/m (electrical conductivity of the saturated‐soil extract), respectively. Each unit increase in salinity above the thresholds reduced yield of the semi‐dwarf cultivar by 3.0% and the two durum cultivars by 3.8%. These results place both species in the salt‐tolerant category. Salinity increased the protein content of both grains but only the quality of the durum grain was improved. Vegetative growth of both species was decreased more by soil salinity than was grain yield. Both species were less salt tolerant at germination than they were after the three‐leaf stage of growth.
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Claims 8
Claim · model-written summary
Semi-dwarf wheat grain yield was unaffected up to 8.6 dS/m salinity.
- Taxon
- wheat
Triticum aestivume0 - Material
- semi‐dwarf wheat cultivare0
- Treatment
- soil salinitye0
- Outcome
- Relative grain yieldse0
- Direction
- unaffectede0
- Value
- 8.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative grain yields of one semi‐dwarf wheat cultivar and two durum cultivars were unaffected by soil salinity up to 8.6 and 5.9 dS/m (electrical conductivity of the saturated‐soil extract), respectively.”
Claim · model-written summary
Durum grain yield was unaffected up to 5.9 dS/m salinity.
- Taxon
- durume0
- Material
- durum cultivarse0
- Treatment
- soil salinitye0
- Outcome
- Relative grain yieldse0
- Direction
- unaffectede0
- Value
- 5.9e0
Not reportedComparator
Verbatim
e0“Relative grain yields of one semi‐dwarf wheat cultivar and two durum cultivars were unaffected by soil salinity up to 8.6 and 5.9 dS/m (electrical conductivity of the saturated‐soil extract), respectively.”
Claim · model-written summary
Above the threshold, each unit of salinity reduced semi-dwarf yield by 3.0%.
- Taxon
- wheatTriticum aestivumt0
- Material
- semi‐dwarf cultivare0
- Treatment
- salinity above the thresholdse0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 3.0%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Each unit increase in salinity above the thresholds reduced yield of the semi‐dwarf cultivar by 3.0%”
t0“Wheat”
Claim · model-written summary
Above the threshold, each unit of salinity reduced durum yield by 3.8%.
- Taxon
- durume0
- Material
- durum cultivarse0
- Treatment
- salinity above the thresholdst1
- Outcome
- yieldt1
- Direction
- reducedt1
- Value
- 3.8%e0
Not reportedComparator
Verbatim
e0“the two durum cultivars by 3.8%”
t0“Wheat”
t1“Each unit increase in salinity above the thresholds reduced yield of the semi‐dwarf cultivar by 3.0%”
Claim · model-written summary
Salinity increased grain protein content in both wheats.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Salinitye0
- Outcome
- protein content of both grainse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity increased the protein content of both grains”
t0“Wheat”
Claim · model-written summary
Salinity improved durum grain quality.
Not reportedComparator
Verbatim
e0“only the quality of the durum grain was improved”
t0“Wheat”
t1“Salinity increased the protein content of both grains”
Claim · model-written summary
Salinity decreased vegetative growth more than grain yield in both species.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- soil salinitye0
- Outcome
- Vegetative growthe0
- Direction
- decreased moree0
- Comparator
- grain yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vegetative growth of both species was decreased more by soil salinity than was grain yield.”
t0“Wheat”
Claim · model-written summary
Both wheat species were less salt tolerant at germination than after the three-leaf stage.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- germinatione0
- Outcome
- salt tolerante0
- Direction
- lesse0
- Comparator
- after the three‐leaf stage of growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both species were less salt tolerant at germination than they were after the three‐leaf stage of growth.”
t0“Wheat”
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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.