Abstract
Using culture dishes filter paper method,the herbicidal activity of the water extracts of the stems and leaves of T.diversifolia was tested with Echinochloa oryzoides,Zea mays,Cucumis sativus,and Eclipta prostrata as the donor plants.The results showed that the water extracts of the stems and leaves from T.diversifolia at a concentration of 0.1 g/mL significantly reduced the germination of E.oryzoides and Z.mays by 92% and 72%,respectively,but had a low inhibitory effect on the germination of C.sativus and E.prostrata.At the concentration of 0.1 and 0.0 5g/mL,water extracts significantly reduced the root length and shoot height of E.oryzoides seedlings,but had a low inhibitory effect on the root length and shoot height of Z.mays,C.sativus,and E.prostrata seedlings.For the petroleum ether,chloroform,ethyl acetate and water extracts,only a concentration of 1 g/mL of chloroform extracts showed the strongest inhibitory effect on the seed germination and seedling root length and shoot height of E.oryzoides.A tagitinin A of T.diversifolia was separated and identified from the stems and leaves by activity-track method.This showed that T.diversifolia had potential to controll E.oryzoides and was worthy for further study.
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Claims 11
Claim · model-written summary
Tithonia water extract reduced E.oryzoides germination by 92%.
- Taxon
- E.oryzoidesEchinochloa oryzoidese0
- Treatment
- water extracts of the stems and leaves from T.diversifolia at a concentration of 0.1 g/mLe0
- Interactor
- T.diversifolia
Tithonia diversifoliae0weed - Outcome
- germination of E.oryzoidese0
- Direction
- reducede0
- Value
- 92%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts of the stems and leaves from T.diversifolia at a concentration of 0.1 g/mL significantly reduced the germination of E.oryzoides and Z.mays by 92% and 72%,respectively”
Claim · model-written summary
Tithonia water extract reduced Z.mays germination by 72%.
- Treatment
- water extracts of the stems and leaves from T.diversifolia at a concentration of 0.1 g/mLe0
- Interactor
- T.diversifoliaTithonia diversifoliae0weed
- Outcome
- germination of E.oryzoides and Z.mayse0
- Direction
- reducede0
- Value
- 72%e0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water extracts of the stems and leaves from T.diversifolia at a concentration of 0.1 g/mL significantly reduced the germination of E.oryzoides and Z.mays by 92% and 72%,respectively”
Claim · model-written summary
The water extract had low inhibition of C.sativus germination.
- Taxon
- C.sativus
Cucumis sativuse0 - Treatment
- low inhibitory effecte0
- Outcome
- germination of C.sativuse0
- Direction
- inhibitorye0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but had a low inhibitory effect on the germination of C.sativus and E.prostrata”
Claim · model-written summary
The water extract had low inhibition of E.prostrata germination.
- Taxon
- E.prostrata
Eclipta prostratae0 - Treatment
- low inhibitory effecte0
- Outcome
- germination of C.sativus and E.prostratae0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but had a low inhibitory effect on the germination of C.sativus and E.prostrata”
Claim · model-written summary
Water extracts reduced E.oryzoides seedling root length and shoot height at both concentrations.
- Taxon
- E.oryzoidesEchinochloa oryzoidese0
- Treatment
- water extractse0
- Outcome
- root length and shoot heighte0
- Direction
- reducede0
- Value
- 0.1 and 0.0 5g/mLe0
Not reportedComparator
Verbatim
e0“At the concentration of 0.1 and 0.0 5g/mL,water extracts significantly reduced the root length and shoot height of E.oryzoides seedlings”
Claim · model-written summary
Water extracts had low inhibition of Z.mays seedling root length and shoot height.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but had a low inhibitory effect on the root length and shoot height of Z.mays,C.sativus,and E.prostrata seedlings”
Claim · model-written summary
Water extracts had low inhibition of C.sativus seedling root length and shoot height.
- Taxon
- C.sativusCucumis sativuse0
- Treatment
- low inhibitory effecte0
- Outcome
- root length and shoot heighte0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but had a low inhibitory effect on the root length and shoot height of Z.mays,C.sativus,and E.prostrata seedlings”
Claim · model-written summary
Water extracts had low inhibition of E.prostrata seedling root length and shoot height.
- Taxon
- E.prostrataEclipta prostratae0
- Treatment
- low inhibitory effecte0
- Outcome
- root length and shoot heighte0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but had a low inhibitory effect on the root length and shoot height of Z.mays,C.sativus,and E.prostrata seedlings”
Claim · model-written summary
At 1 g/mL, chloroform extract had the strongest inhibition of E.oryzoides germination and seedling growth.
- Taxon
- E.oryzoidesEchinochloa oryzoidese0
- Treatment
- 1 g/mL of chloroform extractse0
- Outcome
- seed germination and seedling root length and shoot heighte0
- Direction
- strongest inhibitorye0
- Value
- 1 g/mLe0
Not reportedComparator
Verbatim
e0“only a concentration of 1 g/mL of chloroform extracts showed the strongest inhibitory effect on the seed germination and seedling root length and shoot height of E.oryzoides”
Claim · model-written summary
Tagitinin A was isolated and identified from Tithonia stems and leaves.
- Taxon
- T.diversifoliaTithonia diversifoliae0
- Organ / stage
- stems and leavese0
- Outcome
- tagitinin Ae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A tagitinin A of T.diversifolia was separated and identified from the stems and leaves by activity-track method”
Claim · model-written summary
The authors considered Tithonia promising for E.oryzoides control.
- Taxon
- T.diversifoliaTithonia diversifoliae0
- Interactor
- E.oryzoidesEchinochloa oryzoidese0weed
- Outcome
- potential to controll E.oryzoidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T.diversifolia had potential to controll E.oryzoides and was worthy for further study”
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2 papers in the same direction as this paper
- positive
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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.