Claim · model-written summary
The authors suggest high temperature combined with low RH may reduce powdery mildew severity in greenhouse tomatoes.
- Taxon
- tomatoes
Solanum lycopersicume0 - Interactor
- O. neolycopersiciErysiphe neolycopersicie0pathogen
- Outcome
- combination of high temperatures and low RH may help reduce O. neolycopersici powdery mildew severitye0
- Setting
- greenhousee0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that the combination of high temperatures and low RH may help reduce O. neolycopersici powdery mildew severity in greenhouse tomatoes.”
Title
Conditions for Development of Powdery Mildew of Tomato Caused by Oidium neolycopersici
D. Jacob; D. Rav David; A. Sztjenberg; et al. Phytopathology 2008. doi:10.1094/phyto-98-3-0270
Other claims from this paper (15)
- Observation Conidial germination was highest at 25 degrees C, 99% RH and minimal light.
- Observation Conidial germination was lowest on leaves adjacent to fruits.
- Observation Appressoria formation was optimal at 25 degrees C, 33–99% RH and 1,750 lux.
- Observation Conidia formation was greater at 20 degrees C, 70 to 85% RH and 5,150 lux than under the compared conditions.
- Observation Conidia survived and retained germination capacity for over four months after incubation at lower temperature and higher RH.
- Observation Disease did not develop at 28 degrees C in a growth chamber.
- Association Disease was less severe at higher RH within 70–99% RH than in drier conditions.
- Association Disease was less severe at lower light intensities.
- Association Powdery mildew severity correlated positively with 15 to 25 degrees C, 1 to 4 weeks before disease evaluation (BDE).
- Association Powdery mildew severity correlated positively with RH levels of 60 to 90% at 2 to 4 weeks BDE.
- Association Powdery mildew severity correlated positively with RH of 50 to 60% during the week BDE.
- Association Disease severity correlated negatively with 5 to 15 degrees C and 35 to 40 degrees C.
- Association Disease severity correlated negatively with RH levels of 40% and below at 1 to 4 weeks BDE.
- Association Disease severity correlated negatively with 50 to 60% RH during the third week BDE.
- Association High RH of 90 to 100% correlated negatively with disease severity.