{
  "abstract": "Introduction: In Corsica, citrus cultivation represents a major economic sector, largely based on high-quality products such as ‘Clementine de Corse’ and ‘Pomelo de Corse’, both of which hold a Protected Geographical Indication (PGI). However, the harvesting periods of these cultivars create a recurrent production gap between winter and spring, during which imported citrus fruits dominate the market, increasing competitive pressure on local producers. The development of late-ripening citrus varieties adapted to Mediterranean pedoclimatic conditions therefore represents a key strategy to strengthen local production and extend market availability. In this context, the present study evaluates the seasonal physiological and antioxidant responses of a novel triploid mandarin hybrid (designated W9) grafted onto C35 citrange, in comparison with two reference diploid cultivars, clementine and pomelo (‘Star Ruby’ grapefruit), grown under open-field conditions. Methods: Seasonal parameters were monitored across four seasons, including gas exchange ( P net , g s , E, iWUE ), chlorophyll fluorescence ( F v /F m ), oxidative stress markers (H 2 O 2 , MDA, proline), ascorbate redox components (Asa, DHA, Asa/DHA), and major antioxidant enzymes (SOD, CAT, APX, DHAR). Results: Principal component analysis revealed a strong seasonal structuring of physiological responses, driven primarily by photosynthetic performance and redox metabolism. All genotypes exhibited reduced photosynthetic activity during the cold season. The triploid W9 consistently maintained lower H 2 O 2 and MDA levels, particularly during spring, its harvest period. This was associated with a higher Asa/DHA ratio and increased activities of antioxidant enzymes, notably CAT, APX, and DHAR. Discussion: These results suggest that triploidy at the scion level confers improved redox homeostasis without drastically altering photosynthetic capacity, thereby enhancing tolerance to chilling during the winter-to-spring transition. Overall, triploid W9 emerges as a promising late-ripening citrus genotype for Mediterranean production systems, with potential benefits for fruit quality, harvest stability, and reinforcement of the Corsican citrus value chain.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "name": "Benoit Allegrini"
    },
    {
      "name": "Livia-Maria Venturini"
    },
    {
      "name": "Julie Oustric"
    },
    {
      "name": "Laurent Julhia"
    },
    {
      "name": "Yann Froelicher"
    },
    {
      "name": "Liliane Berti"
    },
    {
      "name": "Radia Lourkisti"
    },
    {
      "name": "Jérémie Santini"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/31fyd3fne4eg8.bib",
  "cited_by": 0,
  "doi": "10.3389/fphgy.2026.1896981",
  "fulltext_url": null,
  "id": "31fyd3fne4eg8",
  "issns": [
    "2813-821X"
  ],
  "landing_url": "https://hal.science/hal-05737415v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sdv"
    ],
    [
      "hal",
      "1.sdv.bbm"
    ],
    [
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      "1.sdv.bv"
    ],
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    [
      "openalex",
      "1110|Plant Physiology and Cultivation Studies"
    ]
  ],
  "openalex": "W7207704343",
  "pdf_url": "https://hal.science/hal-05737415/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/31fyd3fne4eg8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:27Z",
      "native_id": "hal-05737415",
      "source": "hal",
      "url": "https://hal.science/hal-05737415v1"
    }
  ],
  "subjects": [
    {
      "field": "biochemistry",
      "origin": "hal:1.sdv.bbm",
      "subfield": "general"
    },
    {
      "field": "biology",
      "origin": "hal:1.sdv.gen",
      "subfield": "genetics-genomics"
    },
    {
      "field": "biology",
      "origin": "hal:1.sdv.bv",
      "subfield": "plant-biology"
    }
  ],
  "title": "Physiological and redox status properties of a new late-ripening triploid hybrid mandarin: a seasonal field evaluation",
  "title_text": "Physiological and redox status properties of a new late-ripening triploid hybrid mandarin: a seasonal field evaluation",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:27Z",
  "url": "https://research.draconitic.com/paper/31fyd3fne4eg8",
  "venue": "Frontiers in Plant Physiology",
  "versions": []
}