Abstract
The current series of experiments was conducted to assess the allelopathic potential of fennel, rue, and sage seed and plant biomass on weed species hoary cress (Lepidium draba). The effect of plants was evaluated through: seed cogermination in Petri dishes, effect of water extracts from fresh and dry plant biomass in two concentrations (50 and 100 g l-1) in Petri dishes and pots, and effect of fresh and dry plant residues in rates of 10 and 20 g kg-1 of soil. The cogermination of seeds affected germination and seedling length of hoary cress with fennel seeds having the highest inhibitory effect and reducing germination up to 34.9%. The water extracts in Petri dish essay had various effects, however the dry plant biomass in higher concentration reduced germination and seedlings growth for up to 100%. The applications of the extracts from fresh biomass in pots with soil differed from results in Petri dishes. Sage extract in higher concentration inhibited germination for 34.2%, and fennel extract reduced root length for 22.7%. The effect of incorporation of plant residues depended on the plant species and amount of the plant residues and was both stimulatory and inhibitory. The emergence reduction was the highest with incorporation of fresh rue residues.
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Claims 8
Claim · model-written summary
Fennel seed cogermination had the highest inhibitory effect and reduced hoary cress germination up to 34.9%.
- Taxon
- hoary cress
Lepidium drabae0 - Treatment
- fennel seedse0
- Interactor
- fennel
_-_Parc_Natural_de_s'Albufera%2C_Spain_2022-04-18_(02).jpg?width=60)
Anethum foeniculume0other - Outcome
- germinatione0
- Direction
- reducinge0
- Value
- 34.9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_-_Parc_Natural_de_s'Albufera%2C_Spain_2022-04-18_(02).jpg?width=500)
Verbatim
e0“The cogermination of seeds affected germination and seedling length of hoary cress with fennel seeds having the highest inhibitory effect and reducing germination up to 34.9%.”
Claim · model-written summary
Seed cogermination affected hoary cress seedling length.
- Taxon
- hoary cressLepidium drabae0
- Treatment
- cogermination of seedse0
- Outcome
- seedling lengthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cogermination of seeds affected germination and seedling length of hoary cress”
Claim · model-written summary
Higher-concentration dry biomass extracts reduced hoary cress germination and seedling growth by up to 100% in Petri dishes.
- Taxon
- Lepidium drabaLepidium drabat0
- Treatment
- dry plant biomass in higher concentratione0
- Outcome
- germination and seedlings growthe0
- Direction
- reducede0
- Value
- 100%e0
- Setting
- Petri dishe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water extracts in Petri dish essay had various effects, however the dry plant biomass in higher concentration reduced germination and seedlings growth for up to 100%.”
t0“Lepidium draba”
Claim · model-written summary
Fresh-biomass extracts in soil pots gave different results from Petri dishes.
- Taxon
- Lepidium drabaLepidium drabat0
- Treatment
- extracts from fresh biomasse0
- Outcome
- resultse0
- Direction
- differede0
- Comparator
- Petri dishese0
- Setting
- pots with soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The applications of the extracts from fresh biomass in pots with soil differed from results in Petri dishes.”
t0“Lepidium draba”
Claim · model-written summary
Higher-concentration sage extract inhibited hoary cress germination by 34.2%.
- Taxon
- Lepidium drabaLepidium drabat0
- Treatment
- Sage extract in higher concentratione0
- Interactor
- Sagee0other
- Outcome
- germinatione0
- Direction
- inhibitede0
- Value
- 34.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sage extract in higher concentration inhibited germination for 34.2%”
t0“Lepidium draba”
Claim · model-written summary
Fennel extract reduced hoary cress root length by 22.7%.
- Taxon
- Lepidium drabaLepidium drabat0
- Treatment
- fennel extracte0
- Interactor
- fennelAnethum foeniculume0other
- Outcome
- root lengthe0
- Direction
- reducede0
- Value
- 22.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fennel extract reduced root length for 22.7%”
t0“Lepidium draba”
Claim · model-written summary
Residue incorporation had stimulatory and inhibitory effects depending on species and amount.
- Taxon
- Lepidium drabaLepidium drabat0
- Treatment
- incorporation of plant residuese0
- Outcome
- effecte0
- Qualifier
- depended on the plant species and amount of the plant residuese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of incorporation of plant residues depended on the plant species and amount of the plant residues and was both stimulatory and inhibitory.”
t0“Lepidium draba”
Claim · model-written summary
Fresh rue residues caused the highest emergence reduction.
- Taxon
- Lepidium drabaLepidium drabat0
- Treatment
- incorporation of fresh rue residuese0
- Interactor
- ruee0other
- Outcome
- emergence reductione0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The emergence reduction was the highest with incorporation of fresh rue residues.”
t0“Lepidium draba”
The same questions in other papers
botanical · growth · Lepidium draba (hoary cress)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
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.