The application of A HEAT SUM MODEL for the budburst of sour cherry varieties grown at Újfehértó

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dc.contributor.authorLadányi, M.
dc.contributor.authorPersely, Sz.
dc.contributor.authorSzabó, T.
dc.contributor.authorSoltész, M.
dc.contributor.authorNyéki, J.
dc.contributor.authorSzabó, Z.
dc.date.accessioned2021-06-28T10:01:05Z
dc.date.available2021-06-28T10:01:05Z
dc.date.issued2009-09-02
dc.description.abstractExperiences of the last decades showed univocally that the climatic changes, especially the warming up, influenced clearly the phenology, i.e. speed of growth and development of plants. To check the effects, the phenological studies became a topic of special interest. Our research has been performed at Újfehértó, the Research Institute of Fruit Growing and Extension, where the respective database accumulated observations during the period 1984–2005, where the meteorological data as well as the parallel phenological diary referring to the varieties ’Újfehértói fürtös’, ’Kántorjánosi’ and ’Debreceni bôtermô’ during the period 1984–1991 have been utilised. The method of calculating the sum of daily mean temperatures, “degree days”, is based on the observation that the plants are able to utilise cumulatively – in growth and development – the temperature above a set basic temperature. Our phenology model examined the correlation between the sum of degree days and the date of sprouting (budburst). The basic temperature has been determined by optimization, above which (threshold temperature) the accumulation of daily means was most active, or alternatively, below which the daily means are most sensitively expressed in the phenology. The model has been extended to the calculation of the end of rest period (endodormancy) – by optimization as well. Our phenology model will be suitable for two main purposes: for estimating the time of budburst for the Hungarian region during the next decades calculated on the basis of regionally downscaled climate models; on the other hand, by applying our model, the risk of damage caused by spring frosts could be estimated more exactly than earlier.en
dc.formatapplication/pdf
dc.identifier.citationInternational Journal of Horticultural Science, Vol. 15 No. 4 (2009) , 105-112.
dc.identifier.doihttps://doi.org/10.31421/IJHS/15/4/851
dc.identifier.eissn2676-931X
dc.identifier.issn1585-0404
dc.identifier.issue4
dc.identifier.jatitleInt. j. hortic. sci.
dc.identifier.jtitleInternational Journal of Horticultural Science
dc.identifier.urihttps://hdl.handle.net/2437/314560en
dc.identifier.volume15
dc.languageen
dc.relationhttps://ojs.lib.unideb.hu/IJHS/article/view/851
dc.rights.accessOpen Access
dc.rights.ownerInternational Journal of Horticultural Science
dc.subjectsour cherryen
dc.subjectthe phenological modelen
dc.subjectbudbreak datesen
dc.titleThe application of A HEAT SUM MODEL for the budburst of sour cherry varieties grown at Újfehértóen
dc.typefolyóiratcikkhu
dc.typearticleen
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