Abstract
Acidic fractions of the extracts from the three alfalfa cultivars Batasu, Rasen, and Yuba exhibited a varietial difference in the inhibitory effect on hypocotyls and radicle growth of alfalfa (cv. Nasuwakaba) and rice (cv. Koshihikari) seedlings. The extract from Rasen possessed the strongest inhibitory activity, and that of Batasu was the lowest. In a TLC bioassay with lettuce seedlings, inhibitory zones of the extracts were located at an Rf value of 0.6 -0.8, and maximum exhibitory zones at Rfs of 0.7-0.8. However, the extracts of Rasen and Yuba contained an additional inhibitory zone at Rf of 0.1-0.2. Inhibitory zones were analyzed by HPLC. Eight phenolic compounds were identified in the extracts from Rasen and Batasu, and six compounds in that from Yuba. However, the content of these phenolic compounds varied with the cultivar. The content of each phenolic compound was the highest in Rasen, followed by Yuba and Batasu, although the content of jft-hydroxybenzoic acid was equivalent in all cultivars. We suppose that the degree of inhibitory exhibition of allelopathy may be related to the presence and concentrations of allelochemicals (phenolic compounds), however, the allelopathic activity of the plant might be determined by interactions of all these compounds, not just a single chemical.
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Claims 11
Claim · model-written summary
Acidic alfalfa extracts differed by cultivar in inhibition of alfalfa seedling hypocotyl and radicle growth.
- Taxon
- alfalfa
Medicago sativae0 - Material
- Nasuwakabae0
- Organ / stage
- seedlingse0
- Treatment
- Acidic fractions of the extractse0
- Outcome
- inhibitory effect on hypocotyls and radicle growthe0
- Direction
- varietial differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acidic fractions of the extracts from the three alfalfa cultivars Batasu, Rasen, and Yuba exhibited a varietial difference in the inhibitory effect on hypocotyls and radicle growth of alfalfa (cv. Nasuwakaba) and rice (cv. Koshihikari) seedlings.”
Claim · model-written summary
Acidic alfalfa extracts differed by cultivar in inhibition of rice seedling hypocotyl and radicle growth.
- Taxon
- rice
Oryza sativae0 - Material
- Koshihikarie0
- Organ / stage
- seedlingse0
- Treatment
- Acidic fractions of the extractse0
- Outcome
- inhibitory effect on hypocotyls and radicle growthe0
- Direction
- varietial differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acidic fractions of the extracts from the three alfalfa cultivars Batasu, Rasen, and Yuba exhibited a varietial difference in the inhibitory effect on hypocotyls and radicle growth of alfalfa (cv. Nasuwakaba) and rice (cv. Koshihikari) seedlings.”
Claim · model-written summary
Rasen extract had the strongest inhibitory activity.
- Taxon
- AlfalfaMedicago sativat0
- Material
- Rasene0
- Outcome
- inhibitory activitye0
- Direction
- strongeste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The extract from Rasen possessed the strongest inhibitory activity”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
Batasu extract had the lowest inhibitory activity.
- Taxon
- AlfalfaMedicago sativat0
- Material
- Batasue0
- Outcome
- that of Batasu was the loweste0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“that of Batasu was the lowest.”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
The lettuce bioassay located inhibitory zones at Rf 0.6–0.8 and maximum zones at 0.7–0.8.
- Taxon
- lettuce
Lactuca sativae0 - Organ / stage
- seedlingse0
- Outcome
- inhibitory zonese0
- Value
- 0.6 -0.8e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a TLC bioassay with lettuce seedlings, inhibitory zones of the extracts were located at an Rf value of 0.6 -0.8, and maximum exhibitory zones at Rfs of 0.7-0.8.”
Claim · model-written summary
Rasen and Yuba extracts each had an additional inhibitory zone at Rf 0.1–0.2.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- additional inhibitory zonee0
- Value
- 0.1-0.2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the extracts of Rasen and Yuba contained an additional inhibitory zone at Rf of 0.1-0.2.”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
Eight phenolic compounds were identified in Rasen and Batasu extracts.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- phenolic compoundse0
- Value
- Eighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eight phenolic compounds were identified in the extracts from Rasen and Batasu”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
Six phenolic compounds were identified in Yuba extract.
- Taxon
- AlfalfaMedicago sativat0
- Material
- Yubae0
- Outcome
- compoundse0
- Value
- sixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six compounds in that from Yuba.”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
Phenolic compound content varied by cultivar, highest in Rasen then Yuba then Batasu.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- content of each phenolic compounde0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of each phenolic compound was the highest in Rasen, followed by Yuba and Batasu”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
jft-hydroxybenzoic acid content was equivalent across all cultivars.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- content of jft-hydroxybenzoic acide0
- Direction
- equivalente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of jft-hydroxybenzoic acid was equivalent in all cultivars.”
t0“Alfalfa(Medicago sativaL.)”
Claim · model-written summary
The authors suggest allelopathic inhibition may relate to phenolic presence and concentration and compound interactions.
- Taxon
- AlfalfaMedicago sativat0
- Compound
- allelochemicals (phenolic compounds)e0
- Outcome
- inhibitory exhibition of allelopathye0
- Qualifier
- interactions of all these compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the degree of inhibitory exhibition of allelopathy may be related to the presence and concentrations of allelochemicals (phenolic compounds), however, the allelopathic activity of the plant might be determined by interactions of all these compounds, not just a single chemical.”
t0“Alfalfa(Medicago sativaL.)”
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See all 211 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.