Abstract
To understand the adaptability and ion regulation mechanisms of Medicago sativa,Melilotus officinalis,and Astragalus adsurgens seeds at their germination stage to saline environment,the seeds were treated with different concentrations of NaCl,and their germination rate and recovery germination rate were determined.In the meantime,the changes of main ions contents in seed embryos and the water uptake by the embryos at 400 mmol·L-1 of NaCl were investigated.At 50 mmol·L-1 of NaCl,the final germination rate of M.sativa seeds was obviously inhibited and decreased;while at 300 mmol·L-1 of NaCl,the final seed germination rate of M.officinalis was obviously higher than that of M.sativa and A.adsurgens,and the initiation of seed germination process of A.adsurgens was 5 days later than that of M.sativa and M.officinalis.M.sativa seeds rarely germinated at 400 mmol·L-1 of NaCl.After treated with 400 mmol·L-1 of NaCl for 1,2,and 4 days,the water uptake by the seeds of test three species was obviously inhibited.The recovery seed germination rate of M.sativa was lower than that of the other two species,and the seed embryos of M.sativa accumulated more Na+ but leaked out more K+ and Ca2+.In saline environment,the impact on the seed germination of the three species was due to osmotic stress and ion toxicity,but the physiological adaptation mechanisms differed with different leguminous species seeds.
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Claims 9
Claim · model-written summary
At 50 mmol·L-1 NaCl, final germination of M.sativa decreased.
- Taxon
- M.sativa
Medicago sativae0 - Treatment
- 50 mmol·L-1 of NaCle0
- Outcome
- final germination ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 50 mmol·L-1 of NaCl,the final germination rate of M.sativa seeds was obviously inhibited and decreased”
Claim · model-written summary
At 300 mmol·L-1 NaCl, M.officinalis had a higher final germination rate than M.sativa and A.adsurgens.
- Taxon
- M.officinalis
Melilotus officinalise0 - Treatment
- 300 mmol·L-1 of NaCle0
- Outcome
- final seed germination ratee0
- Direction
- highere0
- Comparator
- M.sativa and A.adsurgense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 300 mmol·L-1 of NaCl,the final seed germination rate of M.officinalis was obviously higher than that of M.sativa and A.adsurgens”
Claim · model-written summary
At 300 mmol·L-1 NaCl, A.adsurgens germination began five days later than in the other two species.
- Taxon
- A.adsurgens
Astragalus adsurgense0 - Outcome
- initiation of seed germination processe0
- Direction
- latere0
- Value
- 5 dayse0
- Comparator
- M.sativa and M.officinalise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the initiation of seed germination process of A.adsurgens was 5 days later than that of M.sativa and M.officinalis”
Claim · model-written summary
M.sativa seeds rarely germinated at 400 mmol·L-1 NaCl.
- Taxon
- M.sativaMedicago sativae0
- Treatment
- 400 mmol·L-1 of NaCle0
- Outcome
- seeds rarely germinatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M.sativa seeds rarely germinated at 400 mmol·L-1 of NaCl”
Claim · model-written summary
NaCl at 400 mmol·L-1 inhibited water uptake in seeds of all three species after one, two and four days.
- Taxon
- three speciese0
- Treatment
- 400 mmol·L-1 of NaCle0
- Outcome
- water uptake by the seedse0
- Direction
- inhibitede0
- Qualifier
- 1,2,and 4 dayse0
Not reportedComparator
Verbatim
e0“After treated with 400 mmol·L-1 of NaCl for 1,2,and 4 days,the water uptake by the seeds of test three species was obviously inhibited”
Claim · model-written summary
Recovery germination of M.sativa was lower than in the other two species.
- Taxon
- M.sativaMedicago sativae0
- Outcome
- recovery seed germination ratee0
- Direction
- lowere0
- Comparator
- the other two speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The recovery seed germination rate of M.sativa was lower than that of the other two species”
Claim · model-written summary
M.sativa seed embryos accumulated more Na+.
- Taxon
- M.sativaMedicago sativae0
- Organ / stage
- seed embryose0
- Outcome
- accumulated more Na+e0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed embryos of M.sativa accumulated more Na+ but leaked out more K+ and Ca2+”
Claim · model-written summary
M.sativa seed embryos leaked more K+ and Ca2+.
- Taxon
- M.sativaMedicago sativae0
- Organ / stage
- seed embryose0
- Outcome
- leaked out more K+ and Ca2+e0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed embryos of M.sativa accumulated more Na+ but leaked out more K+ and Ca2+”
Claim · model-written summary
The authors attributed salt effects on seed germination to osmotic stress and ion toxicity, with different adaptation mechanisms among species.
Verbatim
e0“the impact on the seed germination of the three species was due to osmotic stress and ion toxicity,but the physiological adaptation mechanisms differed with different leguminous species seeds”
The same questions in other papers
sodium chloride · growth · Medicago sativa (alfalfa)Results differ
38 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
39 papers more in this group
See all 43 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.