Abstract
The aim of our study was to clarify the effect of ozone exposure on several phytopathogenic fungi on stored apple fruits under different storage conditions. The study was conducted at Bistrita, Romania, in the storehouse of an experimental apple orchard in 2002 and 2003. Two widely grown apple cultivars (‘Jonathan’ and ‘Golden Delicious’) were used. General microbial examination of the fruits was made during storage in order to identify the most important storage pathogens. Efficacy of six ozone treatments was evaluted on fruit decay caused by phytopathogenic fungi. Monthly observations (January, February, March and April) were made of the degree of decay and three measurements were assessed (disease frequency, disease intensity and degree of attack). Our results showed that the most important phytopathogenic fungi during storage was blue mold, caused by species of Penicillium. Disease frequency of apple fruits was very high on cv. ‘Jonathan’, much higher than on cv. ‘Golden delicious’. Ozone treatments (25 ppm ozone for 0.5 and 1.5 hours in November) caused significantly lower disease incidence on stored apple than all other ozone treatments. For longer storage, it seems that additional ozone treatments in February increased treatment efficacy. Cv. ‘Golden delicious’ seemed to be more resistant to storage diseases than cv. ‘Jonathan’ both on the untreated and treated fruits. The effect of the ozone treatments was also the most effective when 25 ppm ozone was applied for 0.5 and 1.5 hours in November.
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Claims 5
Claim · model-written summary
Blue mold caused by Penicillium species was the most important storage disease of apple fruits.
- Taxon
- Apples
Malus domesticat0 - Interactor
- Penicillium
Penicilliume0pathogen - Outcome
- the most important phytopathogenic fungi during storage was blue molde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most important phytopathogenic fungi during storage was blue mold, caused by species of Penicillium”
t0“Stored Apples”
Claim · model-written summary
Disease frequency was very high on Jonathan apples, much higher than on Golden Delicious.
- Taxon
- appleMalus domesticae0
- Material
- Jonathane0
- Outcome
- Disease frequencye0
- Direction
- much highere0
- Comparator
- Golden deliciouse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disease frequency of apple fruits was very high on cv. ‘Jonathan’, much higher than on cv. ‘Golden delicious’”
Claim · model-written summary
Ozone treatments of 25 ppm for 0.5 and 1.5 hours in November gave significantly lower disease incidence on stored apple than all other ozone treatments.
- Taxon
- appleMalus domesticae0
- Treatment
- 25 ppm ozone for 0.5 and 1.5 hours in Novembere0
- Outcome
- disease incidencee0
- Direction
- lowere0
- Comparator
- all other ozone treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ozone treatments (25 ppm ozone for 0.5 and 1.5 hours in November) caused significantly lower disease incidence on stored apple than all other ozone treatments”
Claim · model-written summary
For longer storage, additional ozone treatments in February seemed to increase treatment efficacy.
- Taxon
- ApplesMalus domesticat0
- Treatment
- additional ozone treatments in Februarye0
- Outcome
- treatment efficacye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For longer storage, it seems that additional ozone treatments in February increased treatment efficacy”
t0“Stored Apples”
Claim · model-written summary
Golden Delicious seemed more resistant to storage diseases than Jonathan, on both untreated and treated fruits.
- Taxon
- ApplesMalus domesticat0
- Material
- Golden deliciouse0
- Outcome
- more resistant to storage diseasese0
- Direction
- more resistante0
- Comparator
- Jonathane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cv. ‘Golden delicious’ seemed to be more resistant to storage diseases than cv. ‘Jonathan’ both on the untreated and treated fruits”
t0“Stored Apples”
The same questions in other papers
ozone · disease · Malus domestica (apple)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
2 papers more in this group
See all 6 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.