{"id":5209,"date":"2026-07-09T09:30:26","date_gmt":"2026-07-09T07:30:26","guid":{"rendered":"https:\/\/www.msbiotech.net\/?p=5209"},"modified":"2026-06-25T15:33:43","modified_gmt":"2026-06-25T13:33:43","slug":"fletrissure-apicale-de-la-tomate-causes-symptomes-et-strategies-de-prevention-avec-le-calcium","status":"publish","type":"post","link":"https:\/\/www.msbiotech.net\/fr\/marciume-apicale-del-pomodoro-cause-sintomi-e-strategie-di-prevenzione-con-il-calcio\/","title":{"rendered":"Fl\u00e9trissement apical de la tomate : causes, sympt\u00f4mes et strat\u00e9gies de pr\u00e9vention avec le calcium"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Les <strong>pourriture apicale<\/strong> repr\u00e9sente l'une des physiopathies les plus r\u00e9pandues et les plus nocives dans les cultures de tomates. Ceux qui cultivent des l\u00e9gumes connaissent bien ce probl\u00e8me : le fruit semble sain pendant les premi\u00e8res \u00e9tapes de d\u00e9veloppement, mais au fil des jours, une tache sombre caract\u00e9ristique appara\u00eet sur la partie inf\u00e9rieure, qui tend progressivement \u00e0 s'\u00e9tendre jusqu'\u00e0 compromettre compl\u00e8tement la qualit\u00e9 de la r\u00e9colte.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Outre le d\u00e9t\u00e9riorations esth\u00e9tiques, la pourriture apicale peut entra\u00eener d'importantes pertes \u00e9conomiques en raison de l'augmentation du gaspillage et de la r\u00e9duction de la valeur commerciale de la production.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Comprendre les causes de cette pathologie est fondamental pour adopter une strat\u00e9gie de pr\u00e9vention ad\u00e9quate.<\/span><\/p>\n<h2><b>Qu'est-ce que la pourriture apicale<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Les <a href=\"https:\/\/www.msbiotech.net\/fr\/deux-solutions-contre-la-pourriture-apicale-des-tomates\/\" target=\"_blank\" rel=\"noopener\"><strong>pourriture apicale<\/strong><\/a> c'est un trouble physiologique principalement li\u00e9 \u00e0 une disponibilit\u00e9 insuffisante de calcium dans les tissus du fruit pendant sa phase de croissance.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Contrairement \u00e0 ce que l'on pense, il ne s'agit pas d'une maladie caus\u00e9e par des champignons, des bact\u00e9ries ou des virus, mais d'un d\u00e9s\u00e9quilibre physiologique qui emp\u00eache le fruit de recevoir des quantit\u00e9s ad\u00e9quates de calcium pendant son d\u00e9veloppement.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les sympt\u00f4mes apparaissent g\u00e9n\u00e9ralement sur les fruits encore verts et ont tendance \u00e0 s'accentuer avec la progression de la maturation.<\/span><\/p>\n<h2><b>Comment reconna\u00eetre les sympt\u00f4mes<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Le sympt\u00f4me le plus caract\u00e9ristique est l'apparition d'une <strong>tache sombre et d\u00e9prim\u00e9e<\/strong> dans la partie terminale du fruit, oppos\u00e9e au p\u00e9doncule.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Avec le temps, la l\u00e9sion augmente de taille et prend une coloration brun fonc\u00e9 ou noir\u00e2tre.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les principaux signaux incluent :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">macchie brun\u00e2tres sur la partie inf\u00e9rieure du fruit ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">tissus secs et n\u00e9crotiques ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">expansion progressive de la l\u00e9sion ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">r\u00e9duction de la qualit\u00e9 commerciale ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">susceptibilit\u00e9 accrue aux pourritures secondaires.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Le probl\u00e8me concerne principalement la tomate, mais peut aussi se manifester sur le poivron, l'aubergine et d'autres cultures mara\u00eech\u00e8res.<\/span><\/p>\n<h2><b>Pourquoi le football est-il si important<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Les <strong>calcio<\/strong> fait un <strong>r\u00f4le essentiel<\/strong> dans la structure des parois cellulaires et dans la stabilit\u00e9 des tissus v\u00e9g\u00e9taux.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lorsque le fruit pousse rapidement, le <a href=\"https:\/\/www.msbiotech.net\/fr\/carence-en-calcium-dans-les-plantes-symptomes-causes-et-comment-y-remedier-avec-veratech-ca\/\" target=\"_blank\" rel=\"noopener\"><strong>besoin de calcium<\/strong><\/a> augmente consid\u00e9rablement. Si la plante n'arrive pas \u00e0 en transporter des quantit\u00e9s suffisantes vers les fruits, les sympt\u00f4mes typiques de la pourriture apicale commencent \u00e0 appara\u00eetre.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Il est important de souligner que la pr\u00e9sence de calcium dans le sol ne garantit pas automatiquement sa disponibilit\u00e9 pour la plante.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tr\u00e8s souvent, le probl\u00e8me n'est pas la quantit\u00e9 totale de calcium pr\u00e9sente, mais sa capacit\u00e9 \u00e0 \u00eatre correctement absorb\u00e9e et transloqu\u00e9e au sein de la culture.<\/span><\/p>\n<h2><b>Les principales causes de la pourriture apicale<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Divers facteurs peuvent favoriser l'apparition de la physiopathie.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Parmi les plus communs, on trouve :<\/span><\/p>\n<h3><b>Stress hydrique<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Les irrigations irr\u00e9guli\u00e8res repr\u00e9sentent l'une des causes principales du probl\u00e8me.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alterner des p\u00e9riodes de s\u00e9cheresse avec des irrigations abondantes peut compromettre l'absorption du calcium et son transport vers les fruits.<\/span><\/p>\n<h3><b>Croissance v\u00e9g\u00e9tative excessive<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Un d\u00e9veloppement v\u00e9g\u00e9tatif tr\u00e8s intense peut cr\u00e9er une comp\u00e9tition entre les feuilles et les fruits pour l'utilisation du calcium disponible.<\/span><\/p>\n<h3><b>Salinit\u00e9 \u00e9lev\u00e9e<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Les sols ou solutions nutritives caract\u00e9ris\u00e9s par une concentration saline \u00e9lev\u00e9e peuvent limiter l'absorption des \u00e9l\u00e9ments nutritifs.<\/span><\/p>\n<h3><b>D\u00e9s\u00e9quilibres nutritionnels<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Des exc\u00e8s d'azote, de potassium ou de magn\u00e9sium peuvent interf\u00e9rer avec l'absorption du calcium par les racines.<\/span><\/p>\n<h3><b>Temp\u00e9ratures \u00e9lev\u00e9es<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Les conditions climatiques particuli\u00e8rement chaudes augmentent le stress de la culture et peuvent accentuer le probl\u00e8me.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-5200 size-large\" src=\"https:\/\/www.msbiotech.net\/wp-content\/uploads\/2026\/06\/Marciume-apicale-pomodori-1024x576.jpg\" alt=\"pourriture apicale\" width=\"640\" height=\"360\" srcset=\"https:\/\/www.msbiotech.net\/wp-content\/uploads\/2026\/06\/Marciume-apicale-pomodori-1024x576.jpg 1024w, https:\/\/www.msbiotech.net\/wp-content\/uploads\/2026\/06\/Marciume-apicale-pomodori-300x169.jpg 300w, https:\/\/www.msbiotech.net\/wp-content\/uploads\/2026\/06\/Marciume-apicale-pomodori-768x432.jpg 768w, https:\/\/www.msbiotech.net\/wp-content\/uploads\/2026\/06\/Marciume-apicale-pomodori-18x10.jpg 18w, https:\/\/www.msbiotech.net\/wp-content\/uploads\/2026\/06\/Marciume-apicale-pomodori.jpg 1200w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2><b>Comment pr\u00e9venir la pourriture apicale<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">La pr\u00e9vention repr\u00e9sente l'approche la plus efficace pour limiter les d\u00e9g\u00e2ts.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Une gestion agronomique correcte devrait inclure :<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">irrigation r\u00e9guli\u00e8re et constante ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">suivi de la fertilit\u00e9 du sol;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">gestion \u00e9quilibr\u00e9e de la nutrition ;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">contr\u00f4le de la salinit\u00e9;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">utilisation de sources de calcium facilement assimilables.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Intervenir pr\u00e9ventivement est beaucoup plus efficace que d'essayer de corriger le probl\u00e8me lorsque les sympt\u00f4mes sont d\u00e9j\u00e0 apparents.<\/span><\/p>\n<h2><b>Le r\u00f4le des formulations \u00e0 base de calcium<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Le <a href=\"https:\/\/www.msbiotech.net\/fr\/agriculture-durable-et-microbiome-du-sol-recherche-biotechnologies-et-perspectives-davenir\/\" target=\"_blank\" rel=\"noopener\"><strong>strat\u00e9gies agronomiques modernes<\/strong><\/a> pr\u00e9voient l\u2019utilisation de formulations sp\u00e9cifiques capables de soutenir l\u2019apport de calcium pendant les phases les plus d\u00e9licates du d\u00e9veloppement des fruits.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Assurer une disponibilit\u00e9 constante de l'\u00e9l\u00e9ment permet de soutenir la bonne formation des parois cellulaires et d'am\u00e9liorer la qualit\u00e9 globale de la production.<\/span><\/p>\n<h2><b>Les solutions MS Biotech pour la gestion du calcium<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Pour soutenir les cultures dans les phases de besoins plus importants, MS Biotech propose plusieurs solutions d\u00e9di\u00e9es \u00e0 la nutrition calcique, dont <a href=\"https:\/\/www.msbiotech.net\/fr\/produits\/ca\/\" target=\"_blank\" rel=\"noopener\"><strong>Veratech Ca<\/strong><\/a>, <a href=\"https:\/\/www.msbiotech.net\/fr\/produits\/kaltop\/\" target=\"_blank\" rel=\"noopener\"><strong>Veratech Kaltop<\/strong><\/a>, <a href=\"https:\/\/www.msbiotech.net\/fr\/produits\/azocal-2m\/\" target=\"_blank\" rel=\"noopener\"><strong>Phillon Azocal 2M<\/strong><\/a> e <a href=\"https:\/\/www.msbiotech.net\/fr\/produits\/complexe\/\" target=\"_blank\" rel=\"noopener\"><strong>Complexe<\/strong><\/a>.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ces formulations peuvent \u00eatre int\u00e9gr\u00e9es dans les programmes nutritionnels pour contribuer \u00e0 maintenir un \u00e9quilibre correct de la culture et favoriser un d\u00e9veloppement harmonieux des fruits.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'int\u00e9gration de produits sp\u00e9cifiques dans une strat\u00e9gie agronomique compl\u00e8te permet de r\u00e9duire le risque de maladies physiologiques et de valoriser le potentiel de rendement de la culture.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Les <strong>pourriture apicale de la tomate<\/strong> C'est une probl\u00e9matique fr\u00e9quente qui peut s\u00e9rieusement compromettre la qualit\u00e9 et la rentabilit\u00e9 des productions horticoles.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Une bonne gestion de l'irrigation, de la nutrition et de la disponibilit\u00e9 du calcium est la cl\u00e9 pour pr\u00e9venir l'apparition des sympt\u00f4mes et garantir des productions plus saines et uniformes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Investir dans la pr\u00e9vention signifie r\u00e9duire les pertes, am\u00e9liorer la qualit\u00e9 de la r\u00e9colte et maximiser la valeur commerciale de la production.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Il marciume apicale rappresenta una delle fisiopatie pi\u00f9 diffuse e dannose nelle coltivazioni di pomodoro. Chi coltiva ortaggi conosce bene questo problema: il frutto si presenta apparentemente sano durante le prime fasi di sviluppo, ma con il passare dei giorni compare una caratteristica macchia scura nella parte inferiore, che tende progressivamente ad allargarsi fino a [&hellip;]<\/p>\n","protected":false},"author":34,"featured_media":5199,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-5209","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agricoltura"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Marciume apicale del pomodoro: cause, sintomi e strategie di prevenzione con il calcio - MSBIOTECH - Green Biotechnology<\/title>\n<meta name=\"description\" content=\"Il marciume apicale rappresenta una delle fisiopatie pi\u00f9 diffuse e dannose nelle coltivazioni di pomodoro. 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