Abstract
The germination of alfalfa seed was inhibited in 0.25 mol/L NaCl solution, but exogenous ethylene or ethephon could relieve the inhibition. When the embryo of alfalfa seed was separated from endosperm and testa, the effect of ethylene disappeared, and after the endosperm and testa were put back with the embryo, the effect of ethylene recovered. The effective factor in the endosperm and tasta which was indispensable for the effect of ethylene was proved to be a soluble in water,heat stable and small molecular substance. The addition of EDTA and EGTA could reduce the effect of ethylene in the presence of endosperm and tasta or in total seed. In the absence of endosperm and tasta, the addition of Ca 2+ could relieve the inhibition of increase in fresh weight of separated embryo by NaCl as substitutor of endosperm and tasta in the presence of ethephon.The experimental results indicated that the effective factor in the endosperm and testa was supposed to be Ca 2+ .
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Claims 10
Claim · model-written summary
A 0.25 mol/L sodium chloride solution inhibited alfalfa seed germination.
- Taxon
- alfalfa
Medicago sativae0 - Organ / stage
- seede0
- Treatment
- 0.25 mol/L NaCl solutione0
- Outcome
- germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination of alfalfa seed was inhibited in 0.25 mol/L NaCl solution”
Claim · model-written summary
Exogenous ethylene could relieve sodium chloride inhibition of alfalfa germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- exogenous ethylenee0
- Outcome
- germinatione0
- Direction
- relievee0
- Qualifier
- 0.25 mol/L NaCl solutione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination of alfalfa seed was inhibited in 0.25 mol/L NaCl solution, but exogenous ethylene or ethephon could relieve the inhibition.”
Claim · model-written summary
Ethephon could relieve sodium chloride inhibition of alfalfa germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- ethephone0
- Outcome
- germinatione0
- Direction
- relievee0
- Qualifier
- 0.25 mol/L NaCl solutione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination of alfalfa seed was inhibited in 0.25 mol/L NaCl solution, but exogenous ethylene or ethephon could relieve the inhibition.”
Claim · model-written summary
Separating the embryo from endosperm and testa eliminated the ethylene effect.
- Taxon
- alfalfaMedicago sativae0
- Organ / stage
- embryoe0
- Treatment
- separated from endosperm and testae0
- Outcome
- effect of ethylenee0
- Direction
- disappearede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the embryo of alfalfa seed was separated from endosperm and testa, the effect of ethylene disappeared”
Claim · model-written summary
Returning endosperm and testa to the embryo restored the ethylene effect.
- Taxon
- ALFALFAMedicago sativat0
- Treatment
- endosperm and testa were put back with the embryoe0
- Outcome
- effect of ethylenee0
- Direction
- recoverede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ALFALFA”
e0“after the endosperm and testa were put back with the embryo, the effect of ethylene recovered”
Claim · model-written summary
The endosperm and testa factor required for the ethylene effect was water soluble, heat stable and small molecular.
- Taxon
- ALFALFAMedicago sativat0
- Organ / stage
- endosperm and tastae0
- Outcome
- soluble in water,heat stable and small molecular substancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ALFALFA”
e0“The effective factor in the endosperm and tasta which was indispensable for the effect of ethylene was proved to be a soluble in water,heat stable and small molecular substance.”
Claim · model-written summary
EDTA reduced the ethylene effect in whole seed or with endosperm and testa present.
- Taxon
- ALFALFAMedicago sativat0
- Treatment
- EDTAe0
- Outcome
- effect of ethylenee0
- Direction
- reducee0
- Qualifier
- in the presence of endosperm and tasta or in total seede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ALFALFA”
e0“The addition of EDTA and EGTA could reduce the effect of ethylene in the presence of endosperm and tasta or in total seed.”
Claim · model-written summary
EGTA reduced the ethylene effect in whole seed or with endosperm and testa present.
- Taxon
- ALFALFAMedicago sativat0
- Treatment
- EGTAe0
- Outcome
- effect of ethylenee0
- Direction
- reducee0
- Qualifier
- in the presence of endosperm and tasta or in total seede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ALFALFA”
e0“The addition of EDTA and EGTA could reduce the effect of ethylene in the presence of endosperm and tasta or in total seed.”
Claim · model-written summary
Calcium relieved salt inhibition of separated embryo fresh weight increase with ethephon and without endosperm and testa.
- Taxon
- ALFALFAMedicago sativat0
- Organ / stage
- separated embryoe0
- Treatment
- addition of Ca 2+e0
- Outcome
- increase in fresh weight of separated embryoe0
- Direction
- relievee0
- Qualifier
- in the presence of ethephone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ALFALFA”
e0“In the absence of endosperm and tasta, the addition of Ca 2+ could relieve the inhibition of increase in fresh weight of separated embryo by NaCl as substitutor of endosperm and tasta in the presence of ethephon.”
Claim · model-written summary
The authors proposed calcium as the effective endosperm and testa factor.
- Taxon
- ALFALFAMedicago sativat0
- Organ / stage
- endosperm and testae0
- Compound
- Ca 2+e0
- Outcome
- effective factore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ALFALFA”
e0“The experimental results indicated that the effective factor in the endosperm and testa was supposed to be Ca 2+ .”
The same questions in other papers
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See all 6 papers →calcium(2+) · growth · Medicago sativa (alfalfa)Results agree
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See all 5 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.