Abstract
Postinoculation wetness duration, temperature, and light conditions were investigated in relation.to infection of container-grown seedlings of black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea Pers.:Fr. Seedlings were predisposed to the pathogen by treatment at 35 ± 1 °C in darkness for 4 days immediately before inoculation, and infection was assessed indirectly by estimating sporulation incidence of the pathogen on 6-mm segments of the needles. Sporulation incidence was zero when the temperature during 32 h of the postinoculation wetness was 1, 4, and 36 °C, about 7–10% at 12 °C, 40–47% at 28 °C, and maximal (44–56%) at 20 °C. Sporulation incidence was zero at all tested temperatures when wetness duration was <8–12 h, but increased progressively when the wetness period was increased from 12 to 32 h. Light and darkness during the wetness period did not significantly affect sporulation incidence. Logistic regression models were developed that adequately described sporulation incidence, and by inference, infection incidence, as functions of the postinoculation wetness period and temperature, and were validated using sets of independent data.
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Claims 8
Claim · model-written summary
Botrytis sporulation incidence was zero at 1, 4 and 36 °C during 32 hours of wetness.
- Taxon
- black spruce
Picea marianae1 - Treatment
- 1, 4, and 36 °Ce0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- Sporulation incidencee0
- Direction
- zeroe0
- Value
- zeroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sporulation incidence was zero when the temperature during 32 h of the postinoculation wetness was 1, 4, and 36 °C”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Sporulation incidence was about 7–10% at 12 °C.
- Taxon
- black sprucePicea marianae1
- Treatment
- 12 °Ce0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- Sporulation incidencee0
- Value
- 7–10%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sporulation incidence was zero when the temperature during 32 h of the postinoculation wetness was 1, 4, and 36 °C, about 7–10% at 12 °C, 40–47% at 28 °C, and maximal (44–56%) at 20 °C.”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Sporulation incidence was 40–47% at 28 °C.
- Taxon
- black sprucePicea marianae1
- Treatment
- 28 °Ce0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- Sporulation incidencee0
- Value
- 40–47%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sporulation incidence was zero when the temperature during 32 h of the postinoculation wetness was 1, 4, and 36 °C, about 7–10% at 12 °C, 40–47% at 28 °C, and maximal (44–56%) at 20 °C.”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Sporulation incidence was maximal at 20 °C, reaching 44–56%.
- Taxon
- black sprucePicea marianae1
- Treatment
- 20 °Ce0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- Sporulation incidencee0
- Direction
- maximale0
- Value
- 44–56%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sporulation incidence was zero when the temperature during 32 h of the postinoculation wetness was 1, 4, and 36 °C, about 7–10% at 12 °C, 40–47% at 28 °C, and maximal (44–56%) at 20 °C.”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Sporulation was absent when wetness duration was below 8–12 hours.
- Taxon
- black sprucePicea marianae1
- Treatment
- wetness duration was <8–12 he0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- Sporulation incidencee0
- Direction
- zeroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sporulation incidence was zero at all tested temperatures when wetness duration was <8–12 h”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Sporulation increased progressively as wetness rose from 12 to 32 hours.
- Taxon
- black sprucePicea marianae1
- Treatment
- wetness periode0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- Sporulation incidencee0
- Direction
- increased progressivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sporulation incidence was zero at all tested temperatures when wetness duration was <8–12 h, but increased progressively when the wetness period was increased from 12 to 32 h”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Light versus darkness did not significantly affect sporulation incidence.
- Taxon
- black sprucePicea marianae1
- Treatment
- Lighte0
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- sporulation incidencee0
- Direction
- did not significantly affecte0
- Comparator
- darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light and darkness during the wetness period did not significantly affect sporulation incidence”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
Claim · model-written summary
Validated logistic models adequately described sporulation incidence from wetness duration and temperature.
- Taxon
- black sprucePicea marianae1
- Interactor
- Botrytiscinereae1pathogen
- Outcome
- sporulation incidencee0
- Comparator
- sets of independent datae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Logistic regression models were developed that adequately described sporulation incidence, and by inference, infection incidence, as functions of the postinoculation wetness period and temperature, and were validated using sets of independent data”
e1“black spruce (Piceamariana (Mill.) B.S.P) by Botrytiscinerea”
The same questions in other papers
light · disease · Picea mariana (black spruce)Results agree
1 paper in the same direction as this paper
- no effect
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.