{"id":14780,"date":"2019-07-25T15:43:56","date_gmt":"2019-07-25T13:43:56","guid":{"rendered":"https:\/\/www.irbab-kbivb.be\/?p=14780"},"modified":"2019-07-25T15:43:59","modified_gmt":"2019-07-25T13:43:59","slug":"maladies-foliaires-symptomes-de-jaunisses-virales-visibles-en-betteraves","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/maladies-foliaires-symptomes-de-jaunisses-virales-visibles-en-betteraves\/","title":{"rendered":"Maladies foliaires : Sympt\u00f4mes de jaunisses virales visibles en betteraves !"},"content":{"rendered":"\n

\"\"<\/a>Des sympt\u00f4mes de jaunisse virale apparaissent dans les champs de betteraves. Ils sont la plupart du temps visibles sur des plantes individuelles. Parfois de petits ronds de plantes atteintes de jaunisse sont visibles dans les champs. A cause des conditions s\u00e8ches et chaudes, de nombreux jaunissements dont les causes sont diverses sont observables en betteraves\u00a0: carence dont principalement les carences en magn\u00e9sium, structure, fl\u00e9trissement, br\u00fblures dues au soleil, \u2026<\/p>\n

Les sympt\u00f4mes de jaunisses virales se caract\u00e9risent par une coloration jaune-orange des feuilles et plus particuli\u00e8rement, entre les nervures. Les feuilles jaunissent uniquement lorsqu\u2019elles sont compl\u00e8tement d\u00e9velopp\u00e9es. C\u2019est pour cette raison que les feuilles au c\u0153ur de la betterave sont toujours vertes. La jaunisse virale se distincte par une coloration l\u00e9g\u00e8rement orang\u00e9e et l\u2019\u00e9paississement des feuilles. Etant donn\u00e9 que la jaunisse virale cause une perturbation du transport du sucre par le syst\u00e8me vasculaire, le sucre s\u2019accumule dans les feuilles et ces derni\u00e8res deviennent cassantes.<\/p>\n","protected":false},"excerpt":{"rendered":"

Des sympt\u00f4mes de jaunisse virale apparaissent dans les champs de betteraves. Ils sont la plupart du temps visibles sur des plantes individuelles. Parfois de petits ronds de plantes atteintes de jaunisse sont visibles dans les champs. A cause des conditions s\u00e8ches et chaudes, de nombreux jaunissements dont les causes sont diverses sont observables en betteraves\u00a0: […]<\/p>\n","protected":false},"author":3,"featured_media":14778,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":13,"footnotes":""},"categories":[2,221],"tags":[243],"class_list":["post-14780","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-betterave","category-maladies-foliaires","tag-messages"],"yoast_head":"\nMaladies foliaires : Sympt\u00f4mes de jaunisses virales visibles en betteraves ! - IRBAB-KBIVB<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.irbab-kbivb.be\/fr\/maladies-foliaires-symptomes-de-jaunisses-virales-visibles-en-betteraves\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Maladies foliaires : Sympt\u00f4mes de jaunisses virales visibles en betteraves ! - IRBAB-KBIVB\" \/>\n<meta property=\"og:description\" content=\"Des sympt\u00f4mes de jaunisse virale apparaissent dans les champs de betteraves. Ils sont la plupart du temps visibles sur des plantes individuelles. Parfois de petits ronds de plantes atteintes de jaunisse sont visibles dans les champs. 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