Abstract
The current paper presents the results of a study on the effects of aqueous extracts from five weed species (Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillata) on germination and initial growth in Raphanus sativus L. The following indicators have been analyzed: indices of germination (the germination percentage; the speed of germination; the speed of accumulated germination and the coefficient of germination rate), the length of the root and hypocotyls, the pH of aqueous extracts, the UV-Vis absorption spectra of aqueous extracts. The results of the investigations showed the following aspects: the aqueous extracts reduced the values of calculated germination indices and root growth in the first ontogenetic stages of the test species; the pH of the extracts was slightly acid to neutral. Qualitative spectrophotometric analysis indicated the possible presence of phenolic and organic compounds in the extracts. C. arvense, S. verticillata and E. crus-galii presented the most pronounced effect on germination and growth processes.
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Claims 4
Claim · model-written summary
Aqueous extracts from the five weed species reduced germination indices and root growth of radish.
- Taxon
- Raphanus sativus
Raphanus sativuse0 - Treatment
- aqueous extracts from five weed speciese0
- Interactor
- Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillatae0weed
- Outcome
- germination indices and root growthe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The current paper presents the results of a study on the effects of aqueous extracts from five weed species (Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillata) on germination and initial growth in Raphanus sativus L.”
e1“the aqueous extracts reduced the values of calculated germination indices and root growth in the first ontogenetic stages of the test species”
Claim · model-written summary
Extracts of C. arvense, S. verticillata and E. crus-galii had the most pronounced effect on radish germination and growth processes.
- Taxon
- Raphanus sativusRaphanus sativuse0
- Treatment
- aqueous extracts from five weed speciese0
- Interactor
- C. arvense, S. verticillata and E. crus-galiie2weed
- Outcome
- germination and growth processese2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The current paper presents the results of a study on the effects of aqueous extracts from five weed species (Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillata) on germination and initial growth in Raphanus sativus L.”
e2“C. arvense, S. verticillata and E. crus-galii presented the most pronounced effect on germination and growth processes”
Claim · model-written summary
The aqueous extracts of the weed species were slightly acid to neutral in pH.
- Taxon
- Raphanus sativusRaphanus sativuse0
- Outcome
- pH of the extractse3
- Value
- slightly acid to neutrale3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The current paper presents the results of a study on the effects of aqueous extracts from five weed species (Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillata) on germination and initial growth in Raphanus sativus L.”
e3“the pH of the extracts was slightly acid to neutral”
Claim · model-written summary
Spectrophotometric analysis indicated a possible presence of phenolic and organic compounds in the weed extracts.
- Taxon
- Raphanus sativusRaphanus sativuse0
- Outcome
- presence of phenolic and organic compoundse4
- Qualifier
- possiblee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The current paper presents the results of a study on the effects of aqueous extracts from five weed species (Amaranthus retroflexus, Cirsium arvense, Convolvulus arvensis, Echinochloa crus-galii, Setaria verticillata) on germination and initial growth in Raphanus sativus L.”
e4“Qualitative spectrophotometric analysis indicated the possible presence of phenolic and organic compounds in the extracts”
The same questions in other papers
botanical · growth · Raphanus sativus (radish)Positive and negative results
98 papers in the same direction as this paper · 53 in the opposite direction
- positive
- positive
- positive
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See all 152 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.