Abstract
Plants, as well as their residues (mulches), release physiologically active substances (allelochemicals), which may affect plant germination, development, and productivity. In this study we investigated the allelopathic effects of aqueous extracts of organic mulches (winter wheat straw, peat, sawdust, and gramineous grass) at different concentrations on germination and early growth of radish (Raphanus sativus L.), carrot (Daucus sativus Röhl.), and lettuce (Lactuca sativa L.). It was found, that the strongest negative effect on the germination and shoot and root development of investigated vegetables was with the highest concentration (1 : 10) of the grass aqueous extract. Peat mulch aqueous extracts had the least negative impact on all vegetable seed germination. Straw and peat mulches stimulated the early growth of R. sativus shoots, but there was a negative affect on D. sativus shoot development. The aqueous extracts of various organic mulches had negative effects on R. sativus, while mostly positive effects found on L. sativa root development
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
The highest grass extract concentration most strongly inhibited vegetable germination and shoot and root development.
- Taxon
- vegetablese0
- Treatment
- highest concentration (1 : 10) of the grass aqueous extracte0
- Outcome
- germination and shoot and root developmente0
- Direction
- negativee0
Not reportedComparator
Verbatim
e0“the strongest negative effect on the germination and shoot and root development of investigated vegetables was with the highest concentration (1 : 10) of the grass aqueous extract.”
Claim · model-written summary
Peat extracts had the least negative impact on vegetable seed germination.
- Taxon
- vegetablee0
- Treatment
- Peat mulch aqueous extractse0
- Outcome
- seed germinatione0
- Direction
- least negativee0
Not reportedComparator
Verbatim
e0“Peat mulch aqueous extracts had the least negative impact on all vegetable seed germination.”
Claim · model-written summary
Straw mulch stimulated R. sativus shoot growth.
- Taxon
- R. sativus
Raphanus sativuse0 - Treatment
- Strawe0
- Outcome
- early growth of R. sativus shootse0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Straw and peat mulches stimulated the early growth of R. sativus shoots”
Claim · model-written summary
Peat mulch stimulated R. sativus shoot growth.
- Taxon
- R. sativusRaphanus sativuse0
- Treatment
- peat mulchese0
- Outcome
- early growth of R. sativus shootse0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Straw and peat mulches stimulated the early growth of R. sativus shoots”
Claim · model-written summary
Straw and peat mulches negatively affected D. sativus shoot development.
- Taxon
- D. sativuse0
- Treatment
- Straw and peat mulchese0
- Outcome
- D. sativus shoot developmente0
- Direction
- negativee0
Not reportedComparator
Verbatim
e0“Straw and peat mulches stimulated the early growth of R. sativus shoots, but there was a negative affect on D. sativus shoot development.”
Claim · model-written summary
Various organic mulch extracts negatively affected R. sativus.
- Taxon
- R. sativusRaphanus sativuse0
- Treatment
- aqueous extracts of various organic mulchese0
- Outcome
- R. sativuse0
- Direction
- negativee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The aqueous extracts of various organic mulches had negative effects on R. sativus”
Claim · model-written summary
Various organic mulch extracts mostly improved L. sativa root development.
- Taxon
- L. sativa
Lactuca sativae0 - Outcome
- L. sativa root developmente0
- Direction
- positivee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mostly positive effects found on L. sativa root development”
The same questions in other papers
botanical · organism · Raphanus sativus (radish)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
1 paper more in this group
See all 5 papers →mulching · growth · Raphanus sativus (radish)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 papers →growing medium · growth · Raphanus sativus (radish)Positive and negative results
12 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
15 papers more in this group
See all 19 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.