Abstract
The aim of this study was to evaluate the phytotoxic activity of aqueous extracts from mature leaves, stem bark and roots of Drimys brasiliensis Miers on germination and initial seedling development of two target species, Triticum aestivum L. (wheat) and Raphanus sativus L. (radish). The aqueous extract was prepared in a proportion of 10 g of plant powder, dissolved in 100 mL of distilled water, resulting in a 10% extract concentrate. Dilutions were made with distilled water to 7.5; 5.0; 2.5% and 0% (control). Germination and seedling growth bioassays were carried out under controlled laboratory conditions. The different plant parts exerted inhibitory effects on germination and early growth of wheat and radish, however, the extract obtained from the leaves was more effective in inhibiting the germination of radish. All plant parts of D. brasiliensis may constitute a promising source in the search for compounds capable of acting as natural phytotoxins.
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Claims 4
Claim · model-written summary
Drimys plant-part extracts inhibited wheat germination and early growth.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- different plant partse0
- Outcome
- germination and early growth of wheate0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The different plant parts exerted inhibitory effects on germination and early growth of wheat and radish, however, the extract obtained from the leaves was more effective in inhibiting the germination of radish.”
Claim · model-written summary
Drimys plant-part extracts inhibited radish germination and early growth.
- Taxon
- radish
Raphanus sativuse0 - Treatment
- different plant partse0
- Outcome
- germination and early growth of wheat and radishe0
- Direction
- inhibitorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The different plant parts exerted inhibitory effects on germination and early growth of wheat and radish, however, the extract obtained from the leaves was more effective in inhibiting the germination of radish.”
Claim · model-written summary
Leaf extract was more effective in inhibiting radish germination than other plant-part extracts.
- Taxon
- radishRaphanus sativuse0
- Treatment
- extract obtained from the leavese0
- Outcome
- germination of radishe0
- Direction
- more effective in inhibitinge0
- Comparator
- different plant partse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The different plant parts exerted inhibitory effects on germination and early growth of wheat and radish, however, the extract obtained from the leaves was more effective in inhibiting the germination of radish.”
Claim · model-written summary
All Drimys plant parts were proposed as promising sources of natural phytotoxins.
- Taxon
- D. brasiliensisDrimys brasiliensise0
- Outcome
- promising source in the search for compounds capable of acting as natural phytotoxinse0
Verbatim
e0“All plant parts of D. brasiliensis may constitute a promising source in the search for compounds capable of acting as natural phytotoxins.”
The same questions in other papers
botanical · growth · Raphanus sativus (radish)Positive and negative results
52 papers in the same direction as this paper · 99 in the opposite direction
- negative
- negative
- no effect
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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.