Paper · 1969 · Annals of Applied Biology

Chemical control of root disease of Douglas–fir seedlings in relation to fungus and nematode populations

W. J. BLOOMBERG; W. R. ORCHARD

8
claims
14
verbatim quotes
6
citations
3
research areas
—
Not open access

Abstract

SUMMARY Seed treatment with thiram reduced post–emergence damping–off, while fumigating forest nursery soils with methyl bromide or DD improved Douglas‐fir seedling emergence, shoot and root growth, and decreased the incidence of root disease. At an old site, where corky root develops, the benefits from these fumigants were associated with fewer (a) Xiphinema bakeri and (b) isolates of Cylindrocarpon radicicola. At a new site, decrease in Fusarium root rot and increase in shoot growth were related to reduction of populations of Paratylenchus and Pratylenchus , respectively. In unfumigated soils, Fusarium oxysporum was isolated from diseased and healthy roots.

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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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed treatment with thiram reduced post-emergence damping-off of Douglas-fir seedlings.

Taxon
Douglas–firt0
Treatment
Seed treatment with thirame0
Outcome
post–emergence damping–offe0
Direction
reducede0

Not reportedComparator

Verbatim

e0

“Seed treatment with thiram reduced post–emergence damping–off”

✓ located verbatim in the source · abstract, characters 8–69 · show in text ↑
t0

“Douglas–fir seedlings”

✓ located verbatim in the source · title, characters 36–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fumigating nursery soils with methyl bromide or DD improved Douglas-fir seedling emergence and shoot and root growth.

Taxon
Douglas‐firPseudotsuga menziesiie0
Treatment
fumigating forest nursery soils with methyl bromide or DDe0
Outcome
seedling emergence, shoot and root growthe0
Direction
improvede0

Not reportedComparator

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

Pseudotsuga menziesii
Pseudotsuga menziesii · TaxonWalter Siegmund (talk) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“fumigating forest nursery soils with methyl bromide or DD improved Douglas‐fir seedling emergence, shoot and root growth, and decreased the incidence of root disease”

✓ located verbatim in the source · abstract, characters 77–242 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fumigating nursery soils with methyl bromide or DD decreased the incidence of root disease in Douglas-fir seedlings.

Taxon
Douglas‐firPseudotsuga menziesiie0
Treatment
fumigating forest nursery soils with methyl bromide or DDe0
Outcome
incidence of root diseasee0
Direction
decreasede0

Not reportedComparator

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

Pseudotsuga menziesii
Pseudotsuga menziesii · TaxonWalter Siegmund (talk) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“fumigating forest nursery soils with methyl bromide or DD improved Douglas‐fir seedling emergence, shoot and root growth, and decreased the incidence of root disease”

✓ located verbatim in the source · abstract, characters 77–242 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

At an old site the benefits of fumigation were associated with fewer Xiphinema bakeri.

Taxon
Douglas–firt0
Treatment
these fumigantse0
Interactor
Xiphinema bakeriXiphinema bakerie0pest
Outcome
Xiphinema bakerie0
Direction
fewere0

Verbatim

e0

“the benefits from these fumigants were associated with fewer (a) Xiphinema bakeri and (b) isolates of Cylindrocarpon radicicola”

✓ located verbatim in the source · abstract, characters 287–414 · show in text ↑
t0

“Douglas–fir seedlings”

✓ located verbatim in the source · title, characters 36–57 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

At an old site the benefits of fumigation were associated with fewer isolates of Cylindrocarpon radicicola.

Taxon
Douglas–firt0
Treatment
these fumigantse0
Interactor
Cylindrocarpon radicicolaIlyonectria destructanse0pathogen
Outcome
isolates of Cylindrocarpon radicicolae0
Direction
fewere0

Verbatim

e0

“the benefits from these fumigants were associated with fewer (a) Xiphinema bakeri and (b) isolates of Cylindrocarpon radicicola”

✓ located verbatim in the source · abstract, characters 287–414 · show in text ↑
t0

“Douglas–fir seedlings”

✓ located verbatim in the source · title, characters 36–57 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

At a new site the decrease in Fusarium root rot was related to reduced Paratylenchus populations.

Taxon
Douglas–firt0
Interactor
ParatylenchusParatylenchuse0pest
Outcome
Fusarium root rote0
Direction
decreasee0
Setting
new sitee0

Verbatim

e0

“At a new site, decrease in Fusarium root rot and increase in shoot growth were related to reduction of populations of Paratylenchus and Pratylenchus , respectively”

✓ located verbatim in the source · abstract, characters 416–579 · show in text ↑
t0

“Douglas–fir seedlings”

✓ located verbatim in the source · title, characters 36–57 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

At a new site the increase in shoot growth was related to reduced Pratylenchus populations.

Taxon
Douglas–firt0
Interactor
PratylenchusPratylenchuse0pest
Outcome
shoot growthe0
Direction
increasee0
Setting
new sitee0

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

“At a new site, decrease in Fusarium root rot and increase in shoot growth were related to reduction of populations of Paratylenchus and Pratylenchus , respectively”

✓ located verbatim in the source · abstract, characters 416–579 · show in text ↑
t0

“Douglas–fir seedlings”

✓ located verbatim in the source · title, characters 36–57 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

In unfumigated soils Fusarium oxysporum was isolated from both diseased and healthy roots.

Taxon
Douglas–firt0
Interactor
Fusarium oxysporumFusarium oxysporume0pathogen
Outcome
isolated from diseased and healthy rootse0
Setting
unfumigated soilse0

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

Fusarium oxysporum
Fusarium oxysporum · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In unfumigated soils, Fusarium oxysporum was isolated from diseased and healthy roots”

✓ located verbatim in the source · abstract, characters 581–666 · show in text ↑
t0

“Douglas–fir seedlings”

✓ located verbatim in the source · title, characters 36–57 · show in text ↑

thiram · disease · Pseudotsuga menziesii (Douglas-fir)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. no effect
See all 2 papers →

bromomethane · growth · Pseudotsuga menziesii (Douglas-fir)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. negative
  2. positive
See all 3 papers →

bromomethane · disease · Pseudotsuga menziesii (Douglas-fir)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

solarization · growth · Pseudotsuga menziesii (Douglas-fir)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.