Abstract
Aluminium (Al) toxicity is one of the factors limiting alfalfa (Medicago sativa L.) production on acid soils. This study aimed to determine the Al tolerance of M. sativa in the laboratory and field conditions, and to assess and select the most promising accessions for breeding. The response of M. sativa accessions of different eco-geographical origin to Al was evaluated in Petri dishes with filter paper moistened with different aluminium chloride (AlCl 3 ) concentrations: 0 (control), 1.9, 3.7, 5.6, 7.5 and 16 mM. In the laboratory conditions, the Al tolerance of the accessions was evaluated both in Lithuania (59) and in Ukraine ( The study found that the accessions of M. sativa significantly differed in Al tolerance at the juvenile growth stage. Al toxicity inhibited seed germination and hypocotyl and root growth, particularly at 7.5 and 16 mM AlCl 3 . The Al tolerance index of germination at 7.5 mM and 16 mM AlCl 3 was by 1.8 and 3.3 times lower, respectively, compared with the control. The tolerance index of root and hypocotyl length of the high-tolerance accessions ranged from 28.0% to 47.0% and from 45.0% to 100%, respectively at 7.5 mM. The seed yield of M. sativa was evaluated in the field conditions in Ukraine only. The 48 accessions were sown in an acid (pH 4.9) soil in 2013 and were assessed in 2014-2016. The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.
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Claims 14
Claim · model-written summary
Accessions differed significantly in aluminium tolerance at the juvenile stage.
- Taxon
- M. sativa
Medicago sativae0 - Organ / stage
- juvenile growth stagee0
- Outcome
- Al tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study found that the accessions of M. sativa significantly differed in Al tolerance at the juvenile growth stage.”
Claim · model-written summary
Al toxicity inhibited germination and hypocotyl and root growth, particularly at 7.5 and 16 mM.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- Al toxicitye0
- Outcome
- seed germination and hypocotyl and root growthe0
- Direction
- inhibitede0
- Qualifier
- particularly at 7.5 and 16 mM AlCl 3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al toxicity inhibited seed germination and hypocotyl and root growth, particularly at 7.5 and 16 mM AlCl 3 .”
t0“Medicago sativa”
Claim · model-written summary
At 7.5 mM the germination tolerance index was 1.8 times lower than control.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- 7.5 mMe0
- Outcome
- Al tolerance index of germinatione0
- Direction
- lowere0
- Value
- 1.8e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Al tolerance index of germination at 7.5 mM and 16 mM AlCl 3 was by 1.8 and 3.3 times lower, respectively, compared with the control.”
t0“Medicago sativa”
Claim · model-written summary
At 16 mM the germination tolerance index was 3.3 times lower than control.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- 16 mM AlCl 3e0
- Outcome
- Al tolerance index of germinatione0
- Direction
- lowere0
- Value
- 3.3 timese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Al tolerance index of germination at 7.5 mM and 16 mM AlCl 3 was by 1.8 and 3.3 times lower, respectively, compared with the control.”
t0“Medicago sativa”
Claim · model-written summary
High-tolerance accessions had root length tolerance indices of 28.0% to 47.0% at 7.5 mM.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- 7.5 mMe0
- Outcome
- tolerance index of roote0
- Value
- 28.0% to 47.0%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tolerance index of root and hypocotyl length of the high-tolerance accessions ranged from 28.0% to 47.0% and from 45.0% to 100%, respectively at 7.5 mM.”
t0“Medicago sativa”
Claim · model-written summary
High-tolerance accessions had hypocotyl length tolerance indices of 45.0% to 100% at 7.5 mM.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- 7.5 mMe0
- Outcome
- hypocotyl lengthe0
- Value
- 45.0% to 100%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tolerance index of root and hypocotyl length of the high-tolerance accessions ranged from 28.0% to 47.0% and from 45.0% to 100%, respectively at 7.5 mM.”
t0“Medicago sativa”
Claim · model-written summary
Sevani-1 exhibited high aluminium tolerance in laboratory and field conditions and the highest seed yield, within the reported 41.2 to 47.9 g m 2 range, 1.3 times above Synucha.
- Taxon
- M. sativaMedicago sativae0
- Material
- Sevani-1e0
- Outcome
- Al tolerancee0
- Qualifier
- laboratory and field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.”
Claim · model-written summary
JJ Paso exhibited high aluminium tolerance in laboratory and field conditions and the highest seed yield, within the reported 41.2 to 47.9 g m 2 range, 1.3 times above Synucha.
- Taxon
- M. sativaMedicago sativae0
- Material
- JJ Pasoe0
- Outcome
- Al tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.”
Claim · model-written summary
Selection Manfredi exhibited high aluminium tolerance in laboratory and field conditions.
- Taxon
- M. sativaMedicago sativae0
- Material
- Selection Manfredie0
- Outcome
- Al tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions”
Claim · model-written summary
Mongolian colorful hybrid exhibited high aluminium tolerance in laboratory and field conditions.
- Taxon
- M. sativaMedicago sativae0
- Material
- Mongolian colorful hybride0
- Outcome
- Al tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions”
Claim · model-written summary
Sevani-1 produced the highest seed yield within 41.2 to 47.9 g m 2, 1.3 times higher than Synucha.
- Taxon
- M. sativaMedicago sativae0
- Material
- Sevani-1e0
- Outcome
- seed yielde0
- Direction
- highere0
- Value
- 41.2 to 47.9 g m 2e0
- Qualifier
- 1.3 timese0
- Comparator
- Synuchae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.”
Claim · model-written summary
JJ Paso produced the highest seed yield within 41.2 to 47.9 g m 2, 1.3 times higher than Synucha.
- Taxon
- M. sativaMedicago sativae0
- Material
- JJ Pasoe0
- Outcome
- seed yielde0
- Direction
- highere0
- Value
- 41.2 to 47.9 g m 2e0
- Qualifier
- 1.3 timese0
- Comparator
- Synuchae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.”
Claim · model-written summary
Selection Manfredi produced the highest seed yield within 41.2 to 47.9 g m 2, 1.3 times higher than Synucha.
- Taxon
- M. sativaMedicago sativae0
- Material
- Selection Manfredie0
- Outcome
- seed yielde0
- Direction
- highere0
- Value
- 41.2 to 47.9 g m 2e0
- Qualifier
- 1.3 timese0
- Comparator
- Synuchae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.”
Claim · model-written summary
Mongolian colorful hybrid produced the highest seed yield within 41.2 to 47.9 g m 2, 1.3 times higher than Synucha.
- Taxon
- M. sativaMedicago sativae0
- Material
- Mongolian colorful hybride0
- Outcome
- seed yielde0
- Direction
- highere0
- Value
- 41.2 to 47.9 g m 2e0
- Qualifier
- 1.3 timese0
- Comparator
- Synuchae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The M. sativa accessions 'Sevani-1', 'JJ Paso', 'Selection Manfredi' and 'Mongolian colorful hybrid' exhibited high Al tolerance both in the laboratory and field conditions and produced the highest seed yield ranging from 41.2 to 47.9 g m 2 , which was 1.3 times higher compared with the standard 'Synucha'.”
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See all 13 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.