Abstract
The aim of the study was to evaluate the allelopathic potential of several ruderal plant species on the germination and initial growth of tomato and lettuce. The water extracts from dry aboveground biomass in a five-percent concentration were evaluated under the controlled laboratory conditions in a Petri dish bioassay. The research findings indicated that all species exhibited the allelopathic effects and were ranked by their average inhibitory potential, from the highest to the lowest, as follows: Melilotus albus, Portulaca oleracea, Verbascum phlomoides, Plantago lanceolata, Cichorium intybus, Rorippa austriaca, Vicia grandiflora, Eupatorium cannabinum, and Polygonum aviculare, respectively. A water extract of M. albus had the most significant negative impact, causing an average reduction of 43.9% in germination, 93% in the root length, and 89.4% in the shoot length. Conversely, a water extract of P. oleracea showed a notable stimulatory effect on both test species. The pH value of water extracts from the ruderal plant species ranged from 5.26 (P. aviculare) to 7.71 (V. grandiflora and M. albus) and did not influence their negative allelopathic potential.
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Claims 6
Claim · model-written summary
Nine ruderal species showed allelopathic effects on tomato and lettuce, ranked with Melilotus albus highest and Polygonum aviculare lowest.
- Taxon
- Tomato and Lettuce
Solanum lycopersicum
Lactuca sativat0 - Interactor
- Melilotus albus
Melilotus albuse0other - Outcome
- average inhibitory potentiale0
- Direction
- from the highest to the loweste0
- Qualifier
- Portulaca oleracea, Verbascum phlomoides, Plantago lanceolata, Cichorium intybus, Rorippa austriaca, Vicia grandiflora, Eupatorium cannabinum, and Polygonum avicularee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all species exhibited the allelopathic effects and were ranked by their average inhibitory potential, from the highest to the lowest, as follows: Melilotus albus, Portulaca oleracea, Verbascum phlomoides, Plantago lanceolata, Cichorium intybus, Rorippa austriaca, Vicia grandiflora, Eupatorium cannabinum, and Polygonum aviculare, respectively.”
t0“Tomato and Lettuce”
Claim · model-written summary
Melilotus albus extract reduced average germination by 43.9%.
- Taxon
- Tomato and LettuceSolanum lycopersicumLactuca sativat0
- Treatment
- water extract of M. albuse0
- Interactor
- M. albusMelilotus albuse0other
- Outcome
- germinatione0
- Direction
- reductione0
- Value
- 43.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A water extract of M. albus had the most significant negative impact, causing an average reduction of 43.9% in germination”
t0“Tomato and Lettuce”
Claim · model-written summary
Melilotus albus extract reduced average root length by 93%.
- Taxon
- Tomato and LettuceSolanum lycopersicumLactuca sativat0
- Treatment
- water extract of M. albuse1
- Interactor
- M. albusMelilotus albuse1other
- Outcome
- root lengthe0
- Direction
- reductione1
- Value
- 93%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“93% in the root length”
e1“A water extract of M. albus had the most significant negative impact, causing an average reduction”
t0“Tomato and Lettuce”
Claim · model-written summary
Melilotus albus extract reduced average shoot length by 89.4%.
- Taxon
- Tomato and LettuceSolanum lycopersicumLactuca sativat0
- Treatment
- water extract of M. albuse1
- Interactor
- M. albusMelilotus albuse1other
- Outcome
- shoot lengthe0
- Direction
- reductione1
- Value
- 89.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“89.4% in the shoot length”
e1“A water extract of M. albus had the most significant negative impact, causing an average reduction”
t0“Tomato and Lettuce”
Claim · model-written summary
Portulaca oleracea extract stimulated both test plant species.
- Taxon
- Tomato and LettuceSolanum lycopersicumLactuca sativat0
- Treatment
- water extract of P. oleraceae0
- Interactor
- P. oleracea
Portulaca oleraceae0other - Outcome
- stimulatory effecte0
- Direction
- stimulatorye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a water extract of P. oleracea showed a notable stimulatory effect on both test species”
t0“Tomato and Lettuce”
Claim · model-written summary
Extract pH ranged from 5.26 to 7.71 and did not influence negative allelopathic potential.
- Taxon
- Tomato and LettuceSolanum lycopersicumLactuca sativat0
- Treatment
- water extractse0
- Outcome
- negative allelopathic potentiale0
- Direction
- did not influencee0
- Value
- 5.26 (P. aviculare) to 7.71e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pH value of water extracts from the ruderal plant species ranged from 5.26 (P. aviculare) to 7.71 (V. grandiflora and M. albus) and did not influence their negative allelopathic potential.”
t0“Tomato and Lettuce”
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