Claim · model-written summary
Conidial germination was lowest on leaves adjacent to fruits.
- Taxon
- tomato
Solanum lycopersicumt0 - Organ / stage
- leaves adjacent to fruitse0
- Interactor
- Oidium neolycopersiciErysiphe neolycopersicit0pathogen
- Outcome
- rates of conidial germinatione0
- Direction
- loweste0
Not reportedMaterialGeneCompoundSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under controlled conditions, the highest rates of conidial germination were observed at 25 degrees C, 99% relative humidity (RH) and minimal light, and the lowest on leaves adjacent to fruits.”
t0“Tomato Caused by Oidium neolycopersici”
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 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.
- Recommendation The authors suggest high temperature combined with low RH may reduce powdery mildew severity in greenhouse tomatoes.