Paper · 1970 · Canadian Journal of Plant Science

EFFECT OF NEMATICIDES ON ROOT LESION NEMATODES AND FORAGE LEGUME YIELDS

L. S. THOMPSON; C. B. WILLIS

12
claims
26
verbatim quotes
15
citations
2
research areas
—
Not open access

Abstract

A field study was made on the effectiveness of seven nematicides in reducing root lesion nematode (Pratylenchus spp.) numbers in soil and roots of alfalfa, red clover, and birdsfoot trefoil. Each of the nematicides significantly reduced the number of nematodes recovered from soil 2 and 14 months after seeding, and from roots 4 and 16 months after seeding. Nematicide treatments significantly increased first cut (August) yields of red clover, alfalfa, and birdsfoot trefoil in the seeding year by 55, 28, and 47%, respectively. Total yields for the seeding year were increased by 22, 22, and 40%, respectively. Sixteen months after seeding, significantly more nematodes were recovered from birdsfoot trefoil roots than from red clover, and more from red clover than from alfalfa. The recovery of Fusarium spp. from rootlets 4 months after seeding was not affected by nematicide treatments; however, Fusarium spp. were recovered less frequently from birdsfoot trefoil than from red clover or alfalfa rootlets.

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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 12

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Each nematicide reduced soil root lesion nematode counts at 2 and 14 months.

Taxon
alfalfa, red clover, and birdsfoot trefoile1
Treatment
nematicidese0
Interactor
Pratylenchus spp.Pratylenchust1pest
Outcome
number of nematodes recovered from soile0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pratylenchus
Pratylenchus · Interactor · picture of the genus (one of its species)USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Each of the nematicides significantly reduced the number of nematodes recovered from soil 2 and 14 months after seeding”

✓ located verbatim in the source · abstract, characters 191–310 · show in text ↑
t0

“FORAGE LEGUME YIELDS”

✓ located verbatim in the source · title, characters 51–71 · show in text ↑
t1

“Pratylenchus spp.”

✓ located verbatim in the source · abstract, characters 99–116 · show in text ↑
e1

“roots of alfalfa, red clover, and birdsfoot trefoil”

✓ located verbatim in the source · abstract, characters 138–189 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Each nematicide reduced root nematode counts at 4 and 16 months.

Taxon
alfalfa, red clover, and birdsfoot trefoile1
Treatment
nematicidese2
Interactor
Pratylenchus spp.Pratylenchust1pest
Outcome
rootse0
Direction
reducede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pratylenchus
Pratylenchus · Interactor · picture of the genus (one of its species)USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“and from roots 4 and 16 months after seeding”

✓ located verbatim in the source · abstract, characters 312–356 · show in text ↑
t0

“FORAGE LEGUME YIELDS”

✓ located verbatim in the source · title, characters 51–71 · show in text ↑
t1

“Pratylenchus spp.”

✓ located verbatim in the source · abstract, characters 99–116 · show in text ↑
e1

“roots of alfalfa, red clover, and birdsfoot trefoil”

✓ located verbatim in the source · abstract, characters 138–189 · show in text ↑
e2

“Each of the nematicides significantly reduced the number of nematodes recovered from soil 2 and 14 months after seeding”

✓ located verbatim in the source · abstract, characters 191–310 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nematicides increased first cut red clover yield by 55%.

Taxon
red cloverTrifolium pratensee0
Treatment
Nematicide treatmentse0
Outcome
first cut (August) yieldse0
Direction
increasede0
Value
55e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Trifolium pratense
Trifolium pratense · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Nematicide treatments significantly increased first cut (August) yields of red clover, alfalfa, and birdsfoot trefoil in the seeding year by 55, 28, and 47%, respectively”

✓ located verbatim in the source · abstract, characters 358–528 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nematicides increased first cut alfalfa yield by 28%.

Taxon
alfalfaMedicago sativae0
Treatment
Nematicide treatmentse0
Outcome
first cut (August) yieldse0
Direction
increasede0
Value
28e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Nematicide treatments significantly increased first cut (August) yields of red clover, alfalfa, and birdsfoot trefoil in the seeding year by 55, 28, and 47%, respectively”

✓ located verbatim in the source · abstract, characters 358–528 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nematicides increased first cut birdsfoot trefoil yield by 47%.

Taxon
birdsfoot trefoile0
Treatment
Nematicide treatmentse0
Outcome
first cut (August) yieldse0
Direction
increasede0
Value
47%e0

Not reportedComparator

Verbatim

e0

“Nematicide treatments significantly increased first cut (August) yields of red clover, alfalfa, and birdsfoot trefoil in the seeding year by 55, 28, and 47%, respectively”

✓ located verbatim in the source · abstract, characters 358–528 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Seeding year total yield of red clover increased by 22%.

Taxon
red cloverTrifolium pratenset0
Outcome
Total yieldse0
Direction
increasede0
Value
22e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Trifolium pratense
Trifolium pratense · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Total yields for the seeding year were increased by 22, 22, and 40%, respectively”

✓ located verbatim in the source · abstract, characters 530–611 · show in text ↑
t0

“roots of alfalfa, red clover, and birdsfoot trefoil”

✓ located verbatim in the source · abstract, characters 138–189 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Seeding year total yield of alfalfa increased by 22%.

Taxon
alfalfaMedicago sativat0
Outcome
Total yieldse0
Direction
increasede0
Value
22e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“Total yields for the seeding year were increased by 22, 22, and 40%, respectively”

✓ located verbatim in the source · abstract, characters 530–611 · show in text ↑
t0

“roots of alfalfa, red clover, and birdsfoot trefoil”

✓ located verbatim in the source · abstract, characters 138–189 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Seeding year total yield of birdsfoot trefoil increased by 40%.

Taxon
birdsfoot trefoilt0
Outcome
Total yieldse0
Direction
increasede0
Value
40%e0

Verbatim

e0

“Total yields for the seeding year were increased by 22, 22, and 40%, respectively”

✓ located verbatim in the source · abstract, characters 530–611 · show in text ↑
t0

“roots of alfalfa, red clover, and birdsfoot trefoil”

✓ located verbatim in the source · abstract, characters 138–189 · show in text ↑
Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

At 16 months, nematode recovery was greater from birdsfoot trefoil than red clover roots.

Taxon
birdsfoot trefoile0
Interactor
Pratylenchus spp.Pratylenchust0pest
Outcome
nematodes were recoverede0
Direction
moree0
Comparator
red clovere0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pratylenchus
Pratylenchus · Interactor · picture of the genus (one of its species)USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Sixteen months after seeding, significantly more nematodes were recovered from birdsfoot trefoil roots than from red clover”

✓ located verbatim in the source · abstract, characters 613–736 · show in text ↑
t0

“root lesion nematode (Pratylenchus spp.)”

✓ located verbatim in the source · abstract, characters 77–117 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

At 16 months, nematode recovery was greater from red clover than alfalfa roots.

Taxon
red cloverTrifolium pratensee0
Interactor
Pratylenchus spp.Pratylenchust0pest
Outcome
more from red clovere0
Direction
moree0
Comparator
alfalfae0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Trifolium pratense
Trifolium pratense · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗
Pratylenchus
Pratylenchus · Interactor · picture of the genus (one of its species)USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“and more from red clover than from alfalfa”

✓ located verbatim in the source · abstract, characters 738–780 · show in text ↑
t0

“root lesion nematode (Pratylenchus spp.)”

✓ located verbatim in the source · abstract, characters 77–117 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nematicides did not affect Fusarium recovery from rootlets at four months.

Taxon
alfalfa, red clover, and birdsfoot trefoile1
Treatment
nematicide treatmentse0
Interactor
Fusarium spp.Fusariume0pathogen
Outcome
recovery of Fusarium spp. from rootletse0
Direction
not affectede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Fusarium
Fusarium · Interactor · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“The recovery of Fusarium spp. from rootlets 4 months after seeding was not affected by nematicide treatments”

✓ located verbatim in the source · abstract, characters 782–890 · show in text ↑
t0

“FORAGE LEGUME YIELDS”

✓ located verbatim in the source · title, characters 51–71 · show in text ↑
e1

“roots of alfalfa, red clover, and birdsfoot trefoil”

✓ located verbatim in the source · abstract, characters 138–189 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Fusarium was recovered less often from birdsfoot trefoil than red clover or alfalfa rootlets.

Taxon
birdsfoot trefoile0
Interactor
Fusarium spp.Fusariume0pathogen
Outcome
Fusarium spp. were recoverede0
Direction
less frequentlye0
Comparator
red clover or alfalfae0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Fusarium
Fusarium · Interactor · picture of the genus (one of its species)Public domain · Wikimedia Commons ↗

Verbatim

e0

“Fusarium spp. were recovered less frequently from birdsfoot trefoil than from red clover or alfalfa rootlets”

✓ located verbatim in the source · abstract, characters 901–1009 · show in text ↑

insecticide · yield · Medicago sativa (alfalfa)Results differ

25 papers: 17 positive, 8 negative or no effect

16 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

21 papers more in this group

See all 25 papers →

insecticide · yield · Trifolium pratense (red clover)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive
See all 4 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.