Apparent Differences in Agroclimatic Requirements for Sweet Cherry Across Climatic Settings Reveal Shortcomings in Common Phenology Models

Fadón Adrián, Erica; Do, Hoa; Blanke, Michael; Rodrigo García, Francisco Javier; Luedeling, Eike

Apparent Differences in Agroclimatic Requirements for Sweet Cherry Across Climatic Settings Reveal Shortcomings in Common Phenology Models

dc.contributor.author	Fadón Adrián, Erica	es_ES
dc.contributor.author	Do, Hoa	es_ES
dc.contributor.author	Blanke, Michael	es_ES
dc.contributor.author	Rodrigo García, Francisco Javier	es_ES
dc.contributor.author	Luedeling, Eike	es_ES
dc.coverage.spatial	Ciencia vegetal	es_ES
dc.date.accessioned	2025-10-23T12:41:42Z
dc.date.available	2022-05-25T11:55:44Z
dc.date.available	2025-10-23T12:41:42Z
dc.date.issued	2022	es_ES
dc.description.abstract	Temperate fruit trees are widely cultivated across the world’s temperate regions. These trees are well-adapted to cold-winter climates through their ability to synchronize their phenology with the seasons. In autumn, they enter a dormant state, which allows them to survive the low winter temperatures and lasts until they resume growth in early spring. We analyzed the agroclimatic requirements (chill accumulation in Chill Portions, CP, and heat accumulation in Growing Degree Hours, GDH) for blooming in three sweet cherry cultivars (‘Samba’, ‘Burlat’, and ‘Sylvia’) grown in distinct climatic settings in Bonn (Germany) and Zaragoza (Spain). We used Partial Least Squares (PLS) regression analysis to relate bloom dates of the three cultivars grown in both locations to local temperatures. In Bonn, the colder location, trees experienced a long period of chill exposure (87-105 CP), which allowed a rapid growth response to warm temperatures (3233-4343 GDH). The flowering dates were mainly driven by conditions during the forcing period. In contrast, in the warmer climate of Zaragoza, chill exposure of the trees was relatively short (48-59 CP). The buds required a long exposure to warm conditions (5444-6988 GDH) to subsequently bloom. In this case, flowering dates were influenced more by exposure to chilling than by conditions during the heat accumulation period. Global warming caused opposite effects on flowering dates depending on location. While in Bonn flowering dates have advanced between 3 and 5 days per decade, bloom dates in Zaragoza did not show such a trend, except for minor flowering delays in ‘Sylvia’, the late-flowering cultivar. Our results show that the response of the flowering dates to temperature appeared to depend on specific local climatic conditions. Although we applied current methodologies to determine the agroclimatic requirements of these cultivars, our methods were unable to derive consistent estimates of agroclimatic needs across the two locations.	en
dc.description.sponsorship	Financial support has been provided by PRIMA, a program supported under H2020, the European Union’s Framework programme for research and innovation ("AdaMedOr" project; grant number 01DH20012 of the German Federal Ministry of Education and Research; grant number PCI2020-111966/AEI/10.13039/501100011033 of Agencia Estatal de Investigación); Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria [RTA2017-00003-00]; Agencia Estatal de Investigación (PID2020-115473RR-I00/AEI/10.13039/501100011033) and Gobierno de Aragón - European Social Fund, European Union [Grupo Consolidado A12-17R].
dc.description.status	Published	es_ES
dc.identifier.uri	https://hdl.handle.net/10532/5899.2
dc.language.iso	en	es_ES
dc.publisher	Social Science Research Network	es_ES
dc.publisher.place	Rochester, NY	es_ES
dc.relation.cita	Si
dc.relation.doi	10.2139/ssrn.4102480	es_ES
dc.relation.ispartofseries	SSRN Scholarly Paper	en
dc.relation.ispartofseriesnr	4102480	es_ES
dc.relation.uri	https://papers.ssrn.com/abstract=4102480	es_ES
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 España	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es/	*
dc.subject.agrovoc	Prunus avium	es
dc.subject.agrovoc	Necesidades climáticas	es
dc.subject.agrovoc	Modelos dinámicos	es
dc.subject.agrovoc	Floración	es
dc.title	Apparent Differences in Agroclimatic Requirements for Sweet Cherry Across Climatic Settings Reveal Shortcomings in Common Phenology Models	en
dc.type	texto
dc.type	artículo preliminar
dc.type.refereed	Refereed	es_ES
dc.type.specified	Article	es_ES