Abstract
Abstract The effect of the herbicides di‐allate, diquat, diuron, paraquat, tri‐allate and trifluralin, at a range of application rates from 0.5 to 32 times that recommended by the manufacturers, on vesicular‐arbuscular (V‐A) endophyte spore abundance in the soil and on infection of wheat roots was investigated in field and glasshouse experiments. Paraquat and diquat had no measurable effect on V‐A endophyte spore abundance. There was a slight trend to lower V‐A endophyte spore numbers at high rates of application of di‐allate and tri‐allate but no trend for the other chemicals. Infection intensity (% root length infected) declined at high rates of di‐allate and led to lower mycorrhizal root weights. The phosphorus content of the shoots was also reduced by di‐allate. High doses of di‐allate, diuron, tri‐allate and trifluralin reduced most parameters of plant growth more than mycorrhizal parameters. It is therefore concluded that at normal application rates these chemicals are unlikely to affect adversely endomycorrhiza formation or function.
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Claims 7
Claim · model-written summary
Paraquat and diquat had no measurable effect on V-A endophyte spore abundance in the soil.
- Taxon
- wheat
Triticum aestivume7 - Treatment
- Paraquat and diquate0
- Interactor
- V‐A endophytee0symbiont
- Outcome
- V‐A endophyte spore abundancee0
- Direction
- no measurable effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paraquat and diquat had no measurable effect on V‐A endophyte spore abundance”
e7“infection of wheat roots”
Claim · model-written summary
There was a slight trend to lower V-A endophyte spore numbers at high application rates of di-allate and tri-allate.
- Taxon
- wheatTriticum aestivume7
- Treatment
- di‐allate and tri‐allatee0
- Interactor
- V‐A endophytee0symbiont
- Outcome
- V‐A endophyte spore numberse0
- Direction
- lowere0
- Qualifier
- slight trende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a slight trend to lower V‐A endophyte spore numbers at high rates of application of di‐allate and tri‐allate”
e7“infection of wheat roots”
Claim · model-written summary
Infection intensity (% root length infected) declined at high rates of di-allate.
- Taxon
- wheatTriticum aestivume7
- Treatment
- di‐allatee0
- Outcome
- Infection intensity (% root length infected)e0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection intensity (% root length infected) declined at high rates of di‐allate”
e7“infection of wheat roots”
Claim · model-written summary
High rates of di-allate led to lower mycorrhizal root weights.
- Taxon
- wheatTriticum aestivume7
- Treatment
- di‐allatee0
- Outcome
- mycorrhizal root weightse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at high rates of di‐allate and led to lower mycorrhizal root weights”
e7“infection of wheat roots”
Claim · model-written summary
Di-allate reduced the phosphorus content of the shoots.
- Taxon
- wheatTriticum aestivume7
- Treatment
- di‐allatee0
- Outcome
- phosphorus content of the shootse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The phosphorus content of the shoots was also reduced by di‐allate”
e7“infection of wheat roots”
Claim · model-written summary
High doses of di-allate, diuron, tri-allate and trifluralin reduced most parameters of plant growth more than mycorrhizal parameters.
- Taxon
- wheatTriticum aestivume7
- Treatment
- High doses of di‐allate, diuron, tri‐allate and trifluraline0
- Outcome
- parameters of plant growthe0
- Direction
- reducede0
- Comparator
- mycorrhizal parameterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High doses of di‐allate, diuron, tri‐allate and trifluralin reduced most parameters of plant growth more than mycorrhizal parameters”
e7“infection of wheat roots”
Claim · model-written summary
The authors conclude that at normal application rates these herbicides are unlikely to adversely affect endomycorrhiza formation or function.
- Treatment
- normal application ratese0
- Outcome
- unlikely to affect adversely endomycorrhiza formation or functione0
Not reportedTaxon
Verbatim
e0“at normal application rates these chemicals are unlikely to affect adversely endomycorrhiza formation or function”
The same questions in other papers
paraquat · pest · Triticum aestivum (wheat)Positive and negative results
1 in the opposite direction
- positive
diquat · pest · Triticum aestivum (wheat)Positive and negative results
1 in the opposite direction
- 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.