{"id":42081,"date":"2026-06-02T11:59:41","date_gmt":"2026-06-02T09:59:41","guid":{"rendered":"https:\/\/oenobrands.com\/varietes-resistantes-de-nouvelles-genetiques-de-nouveaux-defis-de-vinification\/"},"modified":"2026-06-17T14:20:39","modified_gmt":"2026-06-17T12:20:39","slug":"varietes-resistantes-de-nouvelles-genetiques-de-nouveaux-defis-de-vinification","status":"publish","type":"post","link":"https:\/\/oenobrands.com\/fr\/varietes-resistantes-de-nouvelles-genetiques-de-nouveaux-defis-de-vinification\/","title":{"rendered":"Vari\u00e9t\u00e9s r\u00e9sistantes : de nouvelles g\u00e9n\u00e9tiques, de nouveaux d\u00e9fis de vinification"},"content":{"rendered":"\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Les vari\u00e9t\u00e9s r\u00e9sistantes, souvent appel\u00e9es <strong>vari\u00e9t\u00e9s PIWI <\/strong>(de l&rsquo;allemand <em>Pilzwiderstandsf\u00e4hige Rebsorten<\/em>), suscitent un int\u00e9r\u00eat croissant dans de nombreuses r\u00e9gions viticoles, les viticulteurs recherchant des solutions permettant de r\u00e9duire les intrants au vignoble tout en pr\u00e9servant la qualit\u00e9 des vins.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Leur contribution \u00e0 une viticulture plus durable est aujourd&rsquo;hui largement reconnue. Cependant, l&rsquo;exp\u00e9rience montre \u00e9galement que ces vari\u00e9t\u00e9s peuvent soulever de nouvelles questions une fois les raisins arriv\u00e9s en cave.<\/p>\n\n<p class=\"wp-block-paragraph\">Bien que de nombreuses vari\u00e9t\u00e9s r\u00e9sistantes contiennent plus de 98 % de g\u00e9n\u00e9tique <em>Vitis vinifera<\/em>, elles ne se comportent pas toujours exactement comme les vari\u00e9t\u00e9s traditionnelles de vinifera.<\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Qu&rsquo;apprenons-nous en cave ?<\/h4>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Les observations actuelles sugg\u00e8rent que les vari\u00e9t\u00e9s r\u00e9sistantes peuvent diff\u00e9rer des vari\u00e9t\u00e9s traditionnelles de <em>Vitis vinifera<\/em> sur plusieurs aspects :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>cin\u00e9tique de d\u00e9gradation de l&rsquo;acidit\u00e9<\/li>\n\n\n\n<li>relation entre richesse en sucres et maturit\u00e9 ph\u00e9nolique<\/li>\n\n\n\n<li>comportement \u00e0 l&rsquo;extraction<\/li>\n\n\n\n<li>composition aromatique<\/li>\n\n\n\n<li>aptitude au pressurage et \u00e0 la clarification<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Par cons\u00e9quent, les pratiques de vinification d\u00e9velopp\u00e9es pour les vari\u00e9t\u00e9s traditionnelles ne sont pas toujours directement transposables.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La recherche progresse rapidement et les caves <strong>adaptent d\u00e9j\u00e0 leurs strat\u00e9gies d&rsquo;extraction, de clarification, de nutrition et de gestion du potentiel d&rsquo;oxydor\u00e9duction<\/strong> lorsqu&rsquo;elles travaillent avec des vari\u00e9t\u00e9s r\u00e9sistantes.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:10%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Souvignier Gris : un exemple concret<\/h4>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Parmi les vari\u00e9t\u00e9s r\u00e9sistantes qui suscitent un int\u00e9r\u00eat croissant, le Souvignier Gris s&rsquo;impose comme un cas d&rsquo;\u00e9tude particuli\u00e8rement int\u00e9ressant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des travaux r\u00e9cents ont mis en \u00e9vidence la pr\u00e9sence de pr\u00e9curseurs de thiols ainsi que de compos\u00e9s tels que des pr\u00e9curseurs de salicylate de m\u00e9thyle, susceptibles de contribuer \u00e0 des expressions aromatiques distinctives.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sur la base de ces caract\u00e9ristiques, Oenobrands a explor\u00e9 trois itin\u00e9raires de vinification cibl\u00e9s visant \u00e0 mettre en avant diff\u00e9rents aspects du potentiel de cette vari\u00e9t\u00e9 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fruits blancs et esters fermentaires<\/strong><\/li>\n\n\n\n<li><strong>l\u2019expression des thiols<\/strong><\/li>\n\n\n\n<li><strong>Caract\u00e8re v\u00e9g\u00e9tal et balsamique<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces exemples illustrent comment les choix de vinification peuvent influencer le style final du vin et pourquoi les vari\u00e9t\u00e9s r\u00e9sistantes m\u00e9ritent des approches \u0153nologiques d\u00e9di\u00e9es.<\/p>\n<\/div>\n<\/div>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Plus l&rsquo;exp\u00e9rience acquise avec les vari\u00e9t\u00e9s r\u00e9sistantes progresse, plus les opportunit\u00e9s de r\u00e9v\u00e9ler leur plein potentiel se multiplient.<\/p>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/oenobrands.com\/fr\/oenobook\/\">Lire l&rsquo;article complet dans l&rsquo;OENOBOOK 16<\/a><\/div>\n<\/div>\n\n<div style=\"height:170px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les vari\u00e9t\u00e9s r\u00e9sistantes contribuent \u00e0 une viticulture plus durable, mais elles soul\u00e8vent \u00e9galement de nouvelles questions en cave. De l&rsquo;expression aromatique au comportement \u00e0 l&rsquo;extraction, qu&rsquo;avons-nous appris jusqu&rsquo;\u00e0 pr\u00e9sent ?<\/p>\n","protected":false},"author":3,"featured_media":42079,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[6],"tags":[],"class_list":["post-42081","post","type-post","status-publish","format-standard","has-post-thumbnail","category-infos"],"acf":[],"_links":{"self":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts\/42081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/comments?post=42081"}],"version-history":[{"count":1,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts\/42081\/revisions"}],"predecessor-version":[{"id":42082,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/posts\/42081\/revisions\/42082"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/media\/42079"}],"wp:attachment":[{"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/media?parent=42081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/categories?post=42081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oenobrands.com\/fr\/wp-json\/wp\/v2\/tags?post=42081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}