Warming temperature reduces the risk of pre-harvest freezing injury and modifies variety suitability in the main winegrape-growing regions of China
Rattachement africain : cn, fr, be, Afrique du Sud, us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Abstract Rising temperatures cause advanced phenology of grapevines and increased sugar concentration in berries, which ultimately modify variety suitability in a given region. Here, four bioclimatic indices and a refined grapevine sugar ripeness (GSR) model were employed to assess the suitability of six winegrape varieties across six winegrape-growing regions of China under historical climate conditions (1961–2020). First, four indices were compared between two periods, one before (P1) and one after (P2) an abrupt climate change events identified during 1988–2002 in these regions. Results showed three temperature- related indices increased in six regions, while the first fall frost day was delayed by 0–16 days in five out of the six regions during P2 compared with P1. Second, GSR model was applied to simulate target sugar concentrations as a proxy for grape harvest dates (GHDs). Direct utilization of original GSR model yielded unsatisfactory predictions with clear bias. Consequently, GSR model was recalibrated with local data to obtain an acceptable performance with R2 and NRMSE values of 0.83 and 2.8% as well as 0.83 and 3.1% for the calibration and validation datasets, respectively, and further simulated GHDs of six varieties with advanced values of 6–30 days in six regions for P2 in comparison with P1. To provide a holistic view of freezing injury risk before harvest, comprehensive freezing injury index (CFI) was developed by integrating the frequency, duration and severity of the freezing risk. CFI decreased (2–60%) during P2 in all regions and the magnitude of decrease was elevation dependent. These findings provide valuable insights into the selection of varieties that can more reliably achieve fully mature fruit, producing more balanced wines with greater typicity under warming climate.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Warming temperature reduces the risk of pre-harvest freezing injury and modifies variety suitability in the main winegrape-growing regions of China
- Date Crossref
- 07/07/2025
- Éditeur
- Oxford University Press (OUP)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Chinese Academy of Sciences pays non établi dans la noticeOrganisme public
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State Key Laboratory of Plant Genomics pays non établi dans la noticeStructure de recherche
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Chinese Academy of Agricultural Sciences pays non établi dans la noticeOrganisme public
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Institute of Environment and Sustainable Development in Agriculture pays non établi dans la noticeStructure de recherche
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Institute of Botany pays non établi dans la noticeStructure de recherche
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Northwest A&F University Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education pays non établi dans la noticeUniversité ou école supérieure
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Université de Bordeaux pays non établi dans la noticeUniversité ou école supérieure
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Ecophysiologie et Génomique Fonctionnelle de la Vigne pays non établi dans la noticeStructure de recherche
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Institut National de Recherche pour l'Agriculture pays non établi dans la noticeOrganisme public
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École Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine pays non établi dans la noticeUniversité ou école supérieure
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Unité mixte de recherche Œnologie pays non établi dans la noticeStructure de recherche
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Royal Meteorological Institute of Belgium pays non établi dans la noticeStructure de recherche
Chinese Academy of Sciences, State Key Laboratory of Plant Genomics et Chinese Academy of Agricultural Sciences, avec 9 autres affiliations. Pays d’affiliation : Afrique du Sud.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.