Abstract
Effects of 4 neutral salts ( NaCl、KCl、Na2SO4、K2SO4) and 4 alkaline salts ( NaHCO3、KHCO3、Na2CO3、K2CO3) and their different concentrations on seed germination and seedling growth of Leymus chinensis were investigated by method of water culture. The results showed that limitation of sodium salt stress to seed germination and growth of Leymus chinensis was obviously higher than potassium salt stress. Alkaline salt stress was obvious higher than neutral salt stress and bivalent salt stress was higher than monovalent salt stress. Seed germination was restrained markedly when Na2CO3, NaHCO3≥20 mmol·L-1, Na2SO4, K2CO3, KHCO3≥50 mmol·L-1 and NaCl, KCl, K2SO4≥ 100 mmol·L-1. The root of Leymus chinensis was sensitive to the salts. Constrains of all salts and their different concentrations but NaCl, KCl and NaHCO3 of5 mmol·L-1 toroot were significant. When molal concentrations of salts were the same (50 mmol·L-1), the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased 26%, 5.5%, 50.7%, 11%, 38.7%, 37.1%, 79% and 83.9% than the control, respectively. Higher content of Na+ and pH were the major reasons for the limitations of seed germination and growth of Leymus chinensis.
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Claims 17
Claim · model-written summary
Sodium salt stress limited seed germination and growth of Leymus chinensis more than potassium salt stress.
Verbatim
t0“Leymus chinensis”
e1“limitation of sodium salt stress to seed germination and growth of Leymus chinensis was obviously higher than potassium salt stress”
Claim · model-written summary
Alkaline salt stress limited Leymus chinensis more than neutral salt stress.
Verbatim
t0“Leymus chinensis”
e1“Alkaline salt stress was obvious higher than neutral salt stress”
Claim · model-written summary
Bivalent salt stress limited Leymus chinensis more than monovalent salt stress.
Verbatim
t0“Leymus chinensis”
e1“bivalent salt stress was higher than monovalent salt stress”
Claim · model-written summary
Seed germination of Leymus chinensis was markedly restrained by Na2CO3, NaHCO3 at concentrations of 20 mmol·L-1 or above.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- Na2CO3, NaHCO3e2
- Outcome
- Seed germinatione1
- Direction
- restrainede1
- Value
- ≥20 mmol·L-1e2
Not reportedComparator
Verbatim
t0“Leymus chinensis”
e1“Seed germination was restrained markedly”
e2“Na2CO3, NaHCO3≥20 mmol·L-1”
Claim · model-written summary
Seed germination of Leymus chinensis was markedly restrained by Na2SO4, K2CO3, KHCO3 at concentrations of 50 mmol·L-1 or above.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- Na2SO4, K2CO3, KHCO3e2
- Outcome
- Seed germinatione1
- Direction
- restrainede1
- Value
- ≥50 mmol·L-1e2
Not reportedComparator
Verbatim
t0“Leymus chinensis”
e1“Seed germination was restrained markedly”
e2“Na2SO4, K2CO3, KHCO3≥50 mmol·L-1”
Claim · model-written summary
Seed germination of Leymus chinensis was markedly restrained by NaCl, KCl, K2SO4 at concentrations of 100 mmol·L-1 or above.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- NaCl, KCl, K2SO4e2
- Outcome
- Seed germinatione1
- Direction
- restrainede1
- Value
- ≥ 100 mmol·L-1e2
Not reportedComparator
Verbatim
t0“Leymus chinensis”
e1“Seed germination was restrained markedly”
e2“NaCl, KCl, K2SO4≥ 100 mmol·L-1”
Claim · model-written summary
The root of Leymus chinensis was sensitive to the salts.
- Taxon
- Leymus chinensisLeymus chinensist0
- Treatment
- the saltse1
- Outcome
- roote1
- Direction
- sensitivee1
Not reportedComparator
Verbatim
t0“Leymus chinensis”
e1“The root of Leymus chinensis was sensitive to the salts”
Claim · model-written summary
Root growth constraint was significant for all salts and concentrations except 5 mmol/L NaCl, KCl and NaHCO3.
- Taxon
- Leymus chinensisLeymus chinensist0
- Organ / stage
- roote1
- Treatment
- all salts and their different concentrationse1
- Outcome
- Constrainse1
- Qualifier
- NaCl, KCl and NaHCO3 of5 mmol·L-1e1
Not reportedComparatorDirection
Verbatim
t0“Leymus chinensis”
e1“Constrains of all salts and their different concentrations but NaCl, KCl and NaHCO3 of5 mmol·L-1 toroot were significant”
Claim · model-written summary
At 50 mmol/L, NaCl stress decreased shoot length of Leymus chinensis by 26% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“26%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, KCl stress decreased shoot length of Leymus chinensis by 5.5% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“5.5%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, Na2SO4 stress decreased shoot length of Leymus chinensis by 50.7% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“50.7%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, K2SO4 stress decreased shoot length of Leymus chinensis by 11% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“11%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, NaHCO3 stress decreased shoot length of Leymus chinensis by 38.7% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“38.7%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, KHCO3 stress decreased shoot length of Leymus chinensis by 37.1% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“37.1%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, Na2CO3 stress decreased shoot length of Leymus chinensis by 79% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“79%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
At 50 mmol/L, K2CO3 stress decreased shoot length of Leymus chinensis by 83.9% relative to the control.
Verbatim
t0“Leymus chinensis”
e1“the length of shoot under NaCl, KCl, Na2SO4, K2SO4, NaHCO3, KHCO3, Na2CO3 and K2CO3 stresses decreased”
e2“83.9%”
e3“than the control”
e4“When molal concentrations of salts were the same (50 mmol·L-1)”
Claim · model-written summary
Higher Na+ content and pH were the major reasons for the limitation of seed germination and growth of Leymus chinensis.
- Taxon
- Leymus chinensisLeymus chinensist0
- Compound
- Na+e1
- Outcome
- limitations of seed germination and growthe1
- Qualifier
- pHe1
Verbatim
t0“Leymus chinensis”
e1“Higher content of Na+ and pH were the major reasons for the limitations of seed germination and growth of Leymus chinensis”
The same questions in other papers
sodium carbonate · growth · Leymus chinensisPositive and negative results
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salinity · growth · Leymus chinensisResults differ
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22 papers more in this group
See all 26 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.