Abstract
Tall wheatgrass, a perennial forage grass renowned for its salt–alkali tolerance, has recently been proposed as a key species for planting in coastal saline–alkaline lands to establish a “Coastal Grass Belt”. Highly salt-tolerant and high-yielding varieties are essential to achieve this objective. To enhance breeding efficiency, a method integrating seed germination, seedling emergence, and seedling growth was established to evaluate salt tolerance in tall wheatgrass. Germination tests revealed that under 250 mM NaCl, 150 mM Na2SO4, 150 mM NaHCO3, or 100 mM Na2CO3, the relative seed germination rates were 31.5%, 65.4%, 68.2%, and 32.6%, respectively, compared to the non-stress condition. Germination tests can use 250 mM NaCl and 100 mM Na2CO3 to assess tall wheatgrass tolerance to neutral and sodic salt stress, respectively. In addition, 250 mM NaCl or saline water with ECw = 6.6 dS m−1 resulted in relative seedling emergence rates of 52% and 59.8%, respectively, compared to the non-stress condition. Seedling hydroponic culture demonstrated that exposure to 300 mM NaCl resulted in relative total dry weight, shoot dry weight, and root dry weight of 38.2%, 35.7% and 50%, respectively, compared to the non-stress condition. Salt-response genes exhibited differential expression in tall wheatgrass under long-term and short-term salt stress. Interestingly, the expression levels of NHX7.1 and NCL1 were significantly higher in salt-tolerant lines compared to salt-sensitive lines. Based on an integrated evaluation of seed germination, seedling emergence, and seedling growth, five out of the 28 tall wheatgrass lines were identified as salt-tolerant. Additionally, two Tritipyrum lines, derived from the cross of Triticum aestivum cv. Xinong 6028 and Thinopyrum ponticum line Zhongyan 1, were found to inherit salt tolerance from tall wheatgrass. Collectively, this work provided an integrated method for salt tolerance testing in a tall wheatgrass breeding program.
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Claims 15
Claim · model-written summary
Under NaCl, relative germination was 31.5%.
- Taxon
- Tall Wheatgrass
Thinopyrum elongatumt0 - Treatment
- 250 mM NaCle0
- Outcome
- relative seed germination ratese0
- Value
- 31.5%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 250 mM NaCl, 150 mM Na2SO4, 150 mM NaHCO3, or 100 mM Na2CO3, the relative seed germination rates were 31.5%, 65.4%, 68.2%, and 32.6%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
Under sodium sulfate, relative germination was 65.4%.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 150 mM Na2SO4e0
- Outcome
- relative seed germination ratese0
- Value
- 65.4%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 250 mM NaCl, 150 mM Na2SO4, 150 mM NaHCO3, or 100 mM Na2CO3, the relative seed germination rates were 31.5%, 65.4%, 68.2%, and 32.6%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
Under bicarbonate, relative germination was 68.2%.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 150 mM NaHCO3e0
- Outcome
- relative seed germination ratese0
- Value
- 68.2%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 250 mM NaCl, 150 mM Na2SO4, 150 mM NaHCO3, or 100 mM Na2CO3, the relative seed germination rates were 31.5%, 65.4%, 68.2%, and 32.6%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
Under carbonate, relative germination was 32.6%.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 100 mM Na2CO3e0
- Outcome
- relative seed germination ratese0
- Value
- 32.6%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 250 mM NaCl, 150 mM Na2SO4, 150 mM NaHCO3, or 100 mM Na2CO3, the relative seed germination rates were 31.5%, 65.4%, 68.2%, and 32.6%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
NaCl and sodium carbonate germination tests can assess neutral and sodic salt tolerance.
- Taxon
- tall wheatgrassThinopyrum elongatume0
- Treatment
- 250 mM NaCl and 100 mM Na2CO3e0
- Outcome
- Germination testse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination tests can use 250 mM NaCl and 100 mM Na2CO3 to assess tall wheatgrass tolerance to neutral and sodic salt stress, respectively”
Claim · model-written summary
NaCl gave 52% relative emergence.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 250 mM NaCle0
- Outcome
- relative seedling emergence ratese0
- Value
- 52%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“250 mM NaCl or saline water with ECw = 6.6 dS m−1 resulted in relative seedling emergence rates of 52% and 59.8%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
Saline water gave 59.8% relative emergence.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- saline water with ECw = 6.6 dS m−1e0
- Outcome
- relative seedling emergence ratese0
- Value
- 59.8%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“250 mM NaCl or saline water with ECw = 6.6 dS m−1 resulted in relative seedling emergence rates of 52% and 59.8%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
NaCl gave 38.2% relative total dry weight.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 300 mM NaCle0
- Outcome
- relative total dry weighte0
- Value
- 38.2%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure to 300 mM NaCl resulted in relative total dry weight, shoot dry weight, and root dry weight of 38.2%, 35.7% and 50%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
NaCl gave 35.7% relative shoot dry weight.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 300 mM NaCle0
- Outcome
- shoot dry weighte0
- Value
- 35.7%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure to 300 mM NaCl resulted in relative total dry weight, shoot dry weight, and root dry weight of 38.2%, 35.7% and 50%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
NaCl gave 50% relative root dry weight.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Treatment
- 300 mM NaCle0
- Outcome
- root dry weighte0
- Value
- 50%e0
- Comparator
- non-stress conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exposure to 300 mM NaCl resulted in relative total dry weight, shoot dry weight, and root dry weight of 38.2%, 35.7% and 50%, respectively, compared to the non-stress condition”
t0“Tall Wheatgrass”
Claim · model-written summary
Salt response genes differed under long and short salt stress.
- Taxon
- tall wheatgrassThinopyrum elongatume0
- Outcome
- Salt-response genese0
- Direction
- differentiale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt-response genes exhibited differential expression in tall wheatgrass under long-term and short-term salt stress”
Claim · model-written summary
NHX7.1 expression was higher in tolerant lines.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Material
- salt-tolerant linese0
- Gene
- NHX7.1e0
- Outcome
- expression levels of NHX7.1e0
- Direction
- highere0
- Comparator
- salt-sensitive linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression levels of NHX7.1 and NCL1 were significantly higher in salt-tolerant lines compared to salt-sensitive lines”
t0“Tall Wheatgrass”
Claim · model-written summary
NCL1 expression was higher in tolerant lines.
- Taxon
- Tall WheatgrassThinopyrum elongatumt0
- Material
- salt-tolerant linese0
- Gene
- NCL1e0
- Outcome
- expression levelse0
- Direction
- highere0
- Comparator
- salt-sensitive linese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression levels of NHX7.1 and NCL1 were significantly higher in salt-tolerant lines compared to salt-sensitive lines”
t0“Tall Wheatgrass”
Claim · model-written summary
Integrated testing identified five salt tolerant lines among 28.
- Taxon
- tall wheatgrassThinopyrum elongatume0
- Material
- tall wheatgrass linese0
- Outcome
- salt-tolerante0
- Value
- five out of the 28e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on an integrated evaluation of seed germination, seedling emergence, and seedling growth, five out of the 28 tall wheatgrass lines were identified as salt-tolerant”
Claim · model-written summary
Two Tritipyrum lines inherited salt tolerance.
Verbatim
e0“two Tritipyrum lines, derived from the cross of Triticum aestivum cv. Xinong 6028 and Thinopyrum ponticum line Zhongyan 1, were found to inherit salt tolerance from tall wheatgrass”
The same questions in other papers
sodium chloride · growth · Thinopyrum elongatum (tall wheatgrass)Positive and negative results
2 in the opposite direction
- positive
- positive
salinity · growth · Thinopyrum elongatum (tall wheatgrass)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 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.