Red grape
Regent
How to read this
Capitals mark the stressed syllable. “zh” is the s in “measure”. “ahn” is a nasal vowel: say it through the nose, with no n. The French r comes from the back of the throat. The recording is the reference.
Regent is a German red crossed in 1967 from Diana and Chambourcin; DNA markers show it is a parent of Vidoc, a resistant red bred by INRA and the JKI and now planted in the Gironde.
Regent is a red grape bred in Germany by Gerhardt Alleweldt at Geilweilerhof, the grape breeding institute that VIVC lists under the Julius Kühn-Institut. He crossed Diana with Chambourcin in 1967, DNA markers agree with his record, and VIVC gives March 4, 1994 as its date of protection. Aleksandra Burdziej, in a 2020 doctoral thesis on grapevine metabolism, names Regent among the hybrids, resistant to low temperatures or to various diseases, on which Polish vineyards are mainly based.
Regent enters the Bordeaux family tree through Vidoc. DNA markers show that Vidoc is a cross of Regent and a selection numbered Mtp 3082-1-42, made by INRA and the Julius Kühn-Institut in 2000 (VIVC). Vidoc carries 2 resistance genes against downy mildew and 2 against powdery mildew, and was registered in the French catalog in January 2018 (INRAE). The arrêté of August 16, 2023 admitted it among the red grapes of Bordeaux and Bordeaux Supérieur, and a 2023 presentation by the Gironde Chamber of Agriculture counted about 37 ha. No record places Regent itself in the Gironde.
The family
Cross: Alleweldt, Gerhardt, Julius Kühn-Institut (JKI), Institut für Rebenzüchtung Geilweilerhof, 1967.
- VIVC 25806 marker pedigree
In today’s rules
Not named in the rules of any Bordeaux appellation today.
Sources
- Röckel et al. (2026): Vitis International Variety Catalogue, www.vivc.de, passport id 4572 (Regent) and passport id 25806 (Vidoc), accessed October 2026
- Aleksandra Burdziej, Effect of selected elicitors on grapevine (Vitis vinifera) primary and secondary metabolism: focus on stilbenes and triterpenoids (doctoral thesis, 2020), citing Bosak 2018, https://theses.hal.science/tel-03938885v1
- INRAE, UMR Santé de la Vigne et Qualité du Vin (Colmar), 'Des variétés innovantes pour accompagner la transition agroécologique du vignoble', fiches variétales, https://www.inrae.fr/sites/default/files/pdf/2020-Colmar-SVQV-Fiches-varietales-Fr_0.pdf, accessed October 2026
- INAO, 'Modification du cahier des charges de l'AOP Bordeaux supérieur adoptée par le Comité national en séance du 7 février 2023' (national opposition procedure draft), https://extranet.inao.gouv.fr/fichier/CDCBordeauxSuperieur-PNO2023.pdf, accessed October 2026
- Chambre d'agriculture de la Gironde, PNDV Tour 2023, 'Évolution et pilotage de l'encépagement' (Charlier, Vecchiato), slide 28, https://gironde.chambre-agriculture.fr/fileadmin/user_upload/Nouvelle-Aquitaine/100_Inst-Gironde/Documents/pdf_home_page_actualites/2023/PNDV_TOUR_2023_Evolution_et_pilotage_de_l_encepagement_CHARLIER_VECCHIATO.pdf, accessed October 2026
- Röckel et al. (2026): Vitis International Variety Catalogue, www.vivc.de, accessed October 2026
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