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dc.creatorMilatović, Dragan
dc.creatorRuml, Mirjana
dc.creatorVulić, Todor
dc.date.accessioned2020-12-17T19:40:10Z
dc.date.available2020-12-17T19:40:10Z
dc.date.issued2010
dc.identifier.issn0567-7572
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/2147
dc.description.abstractHeat requirement from blooming to maturing in 15 apricot cultivars grown in the Belgrade region was determined by the Growing Degree Days method (GDD), using 8-year-phenological data. Two methods for calculating daily mean air temperatures were evaluated: (1) the mean of the maximum and minimum daily temperature (Max/Min), and (2) the mean of three equally spaced hourly observations weighted with the last observation (Weighted). The least coefficient of variation in GDD method was applied to obtain the best lower and upper threshold temperatures. The obtained the best lower threshold temperature varied from 0 degrees C in cultivar 'Kishiniev Early' to 7 degrees C in cultivar 'Roxana'. Calculations of daily mean air temperatures by Weighted method resulted in a smaller coefficient of variation than Max/Min method. Introduction of the upper threshold led to an increase of the coefficient of variation in GDD. The number of days from full blossoming to maturing ranged from 82 to 112. Taking 3 degrees C as the base temperature (the mean value of all cultivars studied), the accumulated GDD between these two phenological stages varied from 1056 (in 'Senetate') to 1648 (in 'Kecskemet Rose').en
dc.rightsrestrictedAccess
dc.sourceActa Horticulturae
dc.subjectPrunus armeniacaen
dc.subjectgrowing degree daysen
dc.subjectthreshold temperatureen
dc.subjectphenologyen
dc.subjectdaily mean air temperatureen
dc.titleHeat Requirement from Blooming to Maturing in Apricot Cultivarsen
dc.typeconferenceObject
dc.rights.licenseARR
dc.citation.epage250
dc.citation.other862: 245-250
dc.citation.spage245
dc.citation.volume862
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_agrospace_2147
dc.identifier.rcubconv_7422
dc.identifier.scopus2-s2.0-77957317118
dc.identifier.wos000313516500038
dc.type.versionpublishedVersion


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