Abstract
A field study assessing the influence of the previous crop, the crop sequence, and aldicarb treatments on root lesion nematode populations and crop yields was carried out in Prince-Edward-Island, Canada. The most recent crop had the greatest impact on nematode numbers. The crop sequences had an influence in some cases on root lesion nematode populations (primarily Pratylenchus penetrans ) and on crop yields. In commercial barley ( Hordeum vulgare ) fields, root lesion nematodes in roots were greatest when barley followed a red clover ( Trifolium pratense ) timothy ( Phleum pratense ) ley, and stunt nematodes ( Tylenchorhynchus spp., primarily T. dubius , and Merlinius spp.) were more common when barley followed barley. The combined dry weight of foliage and grain was larger when barley was planted after potato ( Solanumtuberosum ) and smaller when barley followed barley or a red clover-timothy mixture. Under experimental field conditions, root lesion nematode populations were largest in barley roots when barley followed potato and grain yields were smallest when barley followed barley. Changes in nematode populations in potato were not associated with crop sequences. Potato tuber yields were higher in the sequences that began with wheat ( Triticum aestivum ) or barley than in the sequences that began with potato or soybean ( Glycine max ). Aldicarb reduced the numbers of root lesion nematodes in roots with concomitant yield increases in potato and soybean.
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Claims 17
Claim · model-written summary
The most recent crop had the greatest impact on nematode numbers.
Not reportedTaxon
Verbatim
e0“The most recent crop had the greatest impact on nematode numbers.”
Claim · model-written summary
Crop sequences influenced root lesion nematode populations in some cases.
- Treatment
- crop sequencese0
- Interactor
- Pratylenchus penetrans
Pratylenchus penetranse0pathogen - Outcome
- root lesion nematode populationse0
Not reportedTaxonDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The crop sequences had an influence in some cases on root lesion nematode populations (primarily Pratylenchus penetrans ) and on crop yields.”
Claim · model-written summary
Crop sequences influenced crop yields in some cases.
Not reportedTaxonDirection
Verbatim
e0“The crop sequences had an influence in some cases on root lesion nematode populations (primarily Pratylenchus penetrans ) and on crop yields.”
Claim · model-written summary
Root lesion nematodes in commercial barley roots were greatest after a red clover–timothy ley.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- red clover ( Trifolium pratense ) timothy ( Phleum pratense ) leye0
- Interactor
- root lesion nematodese0pathogen
- Outcome
- root lesion nematodes in rootse0
- Direction
- greateste0
- Setting
- commercial barley ( Hordeum vulgare ) fieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In commercial barley ( Hordeum vulgare ) fields, root lesion nematodes in roots were greatest when barley followed a red clover ( Trifolium pratense ) timothy ( Phleum pratense ) ley, and stunt nematodes ( Tylenchorhynchus spp., primarily T. dubius , and Merlinius spp.) were more common when barley followed barley.”
Claim · model-written summary
Stunt nematodes were more common when commercial barley followed barley.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- barley followed barleye0
- Interactor
- stunt nematodese0pathogen
- Outcome
- stunt nematodese0
- Direction
- more commone0
- Setting
- commercial barley ( Hordeum vulgare ) fieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In commercial barley ( Hordeum vulgare ) fields, root lesion nematodes in roots were greatest when barley followed a red clover ( Trifolium pratense ) timothy ( Phleum pratense ) ley, and stunt nematodes ( Tylenchorhynchus spp., primarily T. dubius , and Merlinius spp.) were more common when barley followed barley.”
Claim · model-written summary
Barley foliage and grain dry weight was larger after potato.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- after potato ( Solanumtuberosum )e0
- Outcome
- combined dry weight of foliage and graine0
- Direction
- largere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The combined dry weight of foliage and grain was larger when barley was planted after potato ( Solanumtuberosum ) and smaller when barley followed barley or a red clover-timothy mixture.”
Claim · model-written summary
Barley foliage and grain dry weight was smaller after barley.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- barley followed barleye0
- Outcome
- combined dry weight of foliage and graine0
- Direction
- smallere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The combined dry weight of foliage and grain was larger when barley was planted after potato ( Solanumtuberosum ) and smaller when barley followed barley or a red clover-timothy mixture.”
Claim · model-written summary
Barley foliage and grain dry weight was smaller after a red clover–timothy mixture.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- a red clover-timothy mixturee0
- Outcome
- combined dry weight of foliage and graine0
- Direction
- smallere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The combined dry weight of foliage and grain was larger when barley was planted after potato ( Solanumtuberosum ) and smaller when barley followed barley or a red clover-timothy mixture.”
Claim · model-written summary
Root lesion nematode populations in barley roots were largest after potato in the experimental field.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- barley followed potatoe0
- Interactor
- root lesion nematodee0pathogen
- Outcome
- root lesion nematode populationse0
- Direction
- largeste0
- Setting
- experimental field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Under experimental field conditions, root lesion nematode populations were largest in barley roots when barley followed potato and grain yields were smallest when barley followed barley.”
Claim · model-written summary
Barley grain yields were smallest after barley in the experimental field.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- barley followed barleye0
- Outcome
- grain yieldse0
- Direction
- smalleste0
- Setting
- experimental field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Under experimental field conditions, root lesion nematode populations were largest in barley roots when barley followed potato and grain yields were smallest when barley followed barley.”
Claim · model-written summary
Changes in potato nematode populations were not associated with crop sequences.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- crop sequencese0
- Outcome
- Changes in nematode populations in potatoe0
- Direction
- not associatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Changes in nematode populations in potato were not associated with crop sequences.”
Claim · model-written summary
Potato tuber yields were higher in sequences beginning with wheat than in sequences beginning with potato or soybean.
- Taxon
- Potato
Solanum tuberosume0 - Treatment
- wheat ( Triticum aestivum )e0
- Outcome
- tuber yieldse0
- Direction
- highere0
- Comparator
- potato or soybean ( Glycine max )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Potato tuber yields were higher in the sequences that began with wheat ( Triticum aestivum ) or barley than in the sequences that began with potato or soybean ( Glycine max ).”
Claim · model-written summary
Potato tuber yields were higher in sequences beginning with barley than in sequences beginning with potato or soybean.
- Taxon
- Potato
Solanum tuberosume0 - Treatment
- barleye0
- Outcome
- tuber yieldse0
- Direction
- highere0
- Comparator
- potato or soybean ( Glycine max )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Potato tuber yields were higher in the sequences that began with wheat ( Triticum aestivum ) or barley than in the sequences that began with potato or soybean ( Glycine max ).”
Claim · model-written summary
Aldicarb reduced root lesion nematode numbers in potato roots.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Aldicarbe0
- Interactor
- root lesion nematodese0pathogen
- Outcome
- numbers of root lesion nematodes in rootse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Aldicarb reduced the numbers of root lesion nematodes in roots with concomitant yield increases in potato and soybean.”
Claim · model-written summary
Aldicarb reduced root lesion nematode numbers in soybean roots.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Aldicarbe0
- Interactor
- root lesion nematodese0pathogen
- Outcome
- numbers of root lesion nematodes in rootse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Aldicarb reduced the numbers of root lesion nematodes in roots with concomitant yield increases in potato and soybean.”
Claim · model-written summary
Aldicarb increased potato yield.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Aldicarbe0
- Interactor
- root lesion nematodese0pathogen
- Outcome
- yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Aldicarb reduced the numbers of root lesion nematodes in roots with concomitant yield increases in potato and soybean.”
Claim · model-written summary
Aldicarb increased soybean yield.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Aldicarbe0
- Interactor
- root lesion nematodese0pathogen
- Outcome
- yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Aldicarb reduced the numbers of root lesion nematodes in roots with concomitant yield increases in potato and soybean.”
The same questions in other papers
aldicarb · yield · Glycine max (soybean)Results differ
10 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
10 papers more in this group
See all 14 papers →aldicarb · yield · Solanum tuberosum (potato)Results differ
16 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
15 papers more in this group
See all 19 papers →aldicarb · disease · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
aldicarb · disease · Solanum tuberosum (potato)Results agree
2 papers in the same direction as this paper
- positive
- 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.