000125238 001__ 125238
000125238 005__ 20240705134146.0
000125238 0247_ $$2doi$$a10.3390/agronomy13020518
000125238 0248_ $$2sideral$$a133018
000125238 037__ $$aART-2023-133018
000125238 041__ $$aeng
000125238 100__ $$aFadón, E.
000125238 245__ $$aAgroclimatic requirements of traditional european pear (Pyrus communis l.) cultivars from Australia, Europe, and North America
000125238 260__ $$c2023
000125238 5060_ $$aAccess copy available to the general public$$fUnrestricted
000125238 5203_ $$aFlowering in temperate fruit trees depends on the temperatures during the previous months; chill is required to overcome endodormancy, and then heat exposure is needed. These agroclimatic requirements are cultivar-specific and determine their adaptability to the growing area and their response to climate change. We aim to estimate the agroclimatic requirements of 16 traditional cultivars of European pears grown in Zaragoza (Spain). We used Partial Least Squares regression analysis to relate 20-year records of flowering dates to the temperatures of the 8 previous months. This approach allowed us to establish the chilling and forcing periods, through which we quantified temperatures with three models for chill accumulation (Chilling Hours, Utah model, and Dynamic model) and one model for heat accumulation (Growing Degree Hours). The results indicated very little difference in the chilling and forcing periods. Chill requirements ranged from 43.9 to 49.2 Chill Portions; from 1027 to 1163 Chilling Units; and from 719 to 774 Chilling Hours. Heat requirements ranged from 6514 to 7509 Growing Degree Hours. Flowering dates were mainly determined by the temperatures during the chilling period. This means that reductions in winter chill caused by global warming in many regions could cause flowering delays or even failures in the fulfillment of chill requirements.
000125238 536__ $$9info:eu-repo/grantAgreement/ES/MCINN/PCI2020-111966$$9info:eu-repo/grantAgreement/ES/MCINN-AEI/PID2020-115473RR-I00$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 724060-4PRIMA$$9info:eu-repo/grantAgreement/EC/H2020/724060/EU/Partnership for Research and Innovation in the Mediterranean Area/4PRIMA$$9info:eu-repo/grantAgreement/ES/DGA-FSE/A12-17R
000125238 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000125238 592__ $$a0.688$$b2023
000125238 593__ $$aAgronomy and Crop Science$$c2023$$dQ1
000125238 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000125238 700__ $$aEspiau, M. T.
000125238 700__ $$aErrea, P.
000125238 700__ $$aAlonso Segura, J. M.
000125238 700__ $$0(orcid)0000-0002-8321-1764$$aRodrigo, J.
000125238 773__ $$g13, 2 (2023), 518 [13 pp.]$$pAgronomy (Basel)$$tAgronomy (Basel)$$x2073-4395
000125238 8564_ $$s940756$$uhttps://zaguan.unizar.es/record/125238/files/texto_completo.pdf$$yVersión publicada
000125238 8564_ $$s2784961$$uhttps://zaguan.unizar.es/record/125238/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000125238 909CO $$ooai:zaguan.unizar.es:125238$$particulos$$pdriver
000125238 951__ $$a2024-07-05-12:47:29
000125238 980__ $$aARTICLE