Abstract
South Tyrol, the main Italian apple growing area, is characterised by an highly intensive soil cultivation. Previous investigations shows the existence of replant disorders although it has not been evaluated which are the main causes. A survey has been carried out in this area with two main aims I) to evaluate the role of soil borne pathogens in apple replant disease and II) to evaluate the effect of soil management toward soil borne pathogens causing replant diseases. The experimental sites were chosen in order to obtain three couples of contiguous conventional and organic apple orchards. Soil sickness test with young apple plants gave a significant growth reduction in all soil samples if compared to a peat control. Among all root colonising fungi (Fusarium oxysporum, F. solani, Aphanomyces sp., Cy/incrocarpon sp., Rhizoctonia sp. and Pythium sp.) some Rhizoctonia solani strains and all Pythium spp. were the most pathogenic. In all cases organic management seems to reduce the soil sickness severity caused by root rot fungal pathogens.
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Claims 4
Claim · model-written summary
All orchard soil samples significantly reduced young apple plant growth compared with peat.
- Taxon
- apple
Malus domesticae0 - Treatment
- all soil samplese0
- Outcome
- growthe0
- Direction
- reductione0
- Comparator
- peat controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil sickness test with young apple plants gave a significant growth reduction in all soil samples if compared to a peat control”
Claim · model-written summary
Some Rhizoctonia solani strains were among the most pathogenic root colonizers.
- Taxon
- appleMalus domesticat0
- Interactor
- Rhizoctonia solani
Rhizoctonia solanie0pathogen - Outcome
- most pathogenice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“some Rhizoctonia solani strains and all Pythium spp. were the most pathogenic”
t0“apple orchards”
Claim · model-written summary
All Pythium spp. were among the most pathogenic root colonizers.
- Taxon
- appleMalus domesticat0
- Outcome
- most pathogenice0
.jpg?width=60){kind=small}
PythiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“some Rhizoctonia solani strains and all Pythium spp. were the most pathogenic”
t0“apple orchards”
Claim · model-written summary
Organic management appeared to reduce soil sickness severity caused by root rot fungal pathogens.
- Taxon
- appleMalus domesticat0
- Treatment
- organic managemente0
- Interactor
- root rot fungal pathogense0pathogen
- Outcome
- soil sickness severitye0
- Direction
- reducee0
- Comparator
- conventionalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“organic management seems to reduce the soil sickness severity caused by root rot fungal pathogens”
t0“conventional and organic apple orchards”
The same questions in other papers
cultivation system · disease · Malus domestica (apple)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- negative
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1 paper more in this group
See all 5 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.