Abstract
In experiments conducted under controlled and field conditions residues of a range of crop plants were found to affect germination, emergence, height of the coleoptile and length of the longest seminal root of wheat. Rape and some leguminous crops exerted the greatest phytotoxic effects. Phytotoxicity was increased when crop residues were incorporated into soil rather than being left on the surface. The phytotoxins did not kill the test species, but it is argued that their effects would disadvantage such a species under field conditions and that instances of such effects are likely to increase as the practices of minimal tillage and stubble retention become more widely adopted.
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Claims 7
Claim · model-written summary
Crop residues affected wheat germination, emergence, coleoptile height and seminal root length.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- residues of a range of crop plantse0
- Outcome
- germination, emergence, height of the coleoptilee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“residues of a range of crop plants were found to affect germination, emergence, height of the coleoptile and length of the longest seminal root of wheat”
Claim · model-written summary
Rape residues had the greatest phytotoxic effects.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Rapee0
- Outcome
- phytotoxic effectse0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rape and some leguminous crops exerted the greatest phytotoxic effects”
t0“wheat”
Claim · model-written summary
Some leguminous crop residues had the greatest phytotoxic effects.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- some leguminous cropse0
- Outcome
- phytotoxic effectse0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rape and some leguminous crops exerted the greatest phytotoxic effects”
t0“wheat”
Claim · model-written summary
Incorporating residues into soil increased phytotoxicity compared with leaving them on the surface.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- crop residues were incorporated into soile0
- Outcome
- Phytotoxicitye0
- Direction
- increasede0
- Comparator
- being left on the surfacee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytotoxicity was increased when crop residues were incorporated into soil rather than being left on the surface”
t0“wheat”
Claim · model-written summary
The phytotoxins did not kill the test species.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- did not kill the test speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phytotoxins did not kill the test species”
t0“wheat”
Claim · model-written summary
Authors argue that phytotoxin effects would disadvantage wheat in fields.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- disadvantage such a speciese0
- Qualifier
- under field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their effects would disadvantage such a species under field conditions”
t0“wheat”
Claim · model-written summary
Authors expect these effects to become more frequent as minimal tillage and stubble retention expand.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- minimal tillage and stubble retentione0
- Outcome
- instances of such effectse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“instances of such effects are likely to increase as the practices of minimal tillage and stubble retention become more widely adopted”
t0“wheat”
The same questions in other papers
organic · crop injury · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.