Site factors and management practices associated with the incidence of blight in chestnut orchards in Northeastern Portugal

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dc.contributor.authorPortela, Esterpt_PT
dc.contributor.authorPinto, Ruipt_PT
dc.date.accessioned2018-09-07T10:20:37Z
dc.date.available2018-09-07T10:20:37Z
dc.date.issued2005
dc.description.abstractThe objective of this study was to identify the possible relationship between management practices and site factors with the incidence of blight in chestnut orchards. The survey took place in the two ecological sub-regions of Padrela and Bragança in NE Portugal. A total of 62 farmers were questioned about management practices and 107 orchards were described for site characteristics and evaluated for blight disease. Statistical analyses were carried out both for discrete and continuous variables in order to determine the association between these and the presence of disease in healthy orchards (< 10% of incidence) and diseased orchards (> 10% incidence). Chestnut blight occurs more often in orchards located in soils derived from granite and quartzite schist, on plateau and convex slopes and in orchards established on previously uncultivated land (moorland). No relationship was found between disease incidence and slope aspect, soil drainage or soil stoniness. The blight incidence was higher in orchards submitted to more tillage operations (≥3 per year); less frequent pruning (3-4 years, i. e. larger branches) when compared to more frequent pruning (1-2 years, i. e. twigs); heavy application of farmyard manures; higher N and P application rates both from organic and mineral fertilisers.pt_PT
dc.identifier.citationIII International Chestnut Congress, 2004. 693: 677-681 (2005).pt_PT
dc.identifier.urihttp://hdl.handle.net/10348/8708
dc.language.isoporpt_PT
dc.rightsopen accesspt_PT
dc.subjectChestnutpt_PT
dc.subjectBlightpt_PT
dc.subjectCastanea sativapt_PT
dc.subjectNortheastern Portugalpt_PT
dc.subjectCryphonectria parasiticapt_PT
dc.titleSite factors and management practices associated with the incidence of blight in chestnut orchards in Northeastern Portugalpt_PT
dc.typejournal articlept_PT
degois.publication.firstPage677pt_PT
degois.publication.lastPage681pt_PT
degois.publication.titleActa Horticulturaept_PT
degois.publication.volume693pt_PT
dspace.entity.typePublicationen
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