{"id":58410,"date":"2026-09-04T10:17:51","date_gmt":"2026-09-04T14:17:51","guid":{"rendered":"https:\/\/smartcherry.cl\/?p=58410"},"modified":"2026-09-04T10:23:48","modified_gmt":"2026-09-04T14:23:48","slug":"mitigacion-del-estres-por-heladas-en-brotacion-bioestimulacion-osmoprotectora","status":"publish","type":"post","link":"https:\/\/smartcherry.cl\/en\/bioestimulantes\/mitigacion-del-estres-por-heladas-en-brotacion-bioestimulacion-osmoprotectora\/","title":{"rendered":"Mitigaci\u00f3n del estr\u00e9s por heladas en brotaci\u00f3n: Bioestimulaci\u00f3n osmoprotectora\u00a0"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A principios de septiembre, el avance fenol\u00f3gico expone a los tejidos florales a un riesgo h\u00eddrico y t\u00e9rmico severo por heladas primaverales tard\u00edas. El uso de bioestimulantes especializados ricos en osmolitos, crioprotectores y antioxidantes permite acondicionar las membranas plasm\u00e1ticas, reducir el punto de congelaci\u00f3n del agua celular y mitigar el da\u00f1o oxidativo antes de la antesis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>La vulnerabilidad fisiol\u00f3gica del cerezo ante eventos subcero<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A medida que las yemas florales evolucionan de bot\u00f3n verde a bot\u00f3n blanco, el contenido relativo de agua en los tejidos florales incrementa de forma acelerada, haciendo a las futuras flores y pedicelos altamente susceptibles al congelamiento. Mientras una yema en receso puede tolerar temperaturas muy inferiores a -10\u00b0C , una flor en bot\u00f3n blanco sufre da\u00f1os irreversibles en ovario y pistilo con temperaturas de&nbsp; -2,0 a -3,0\u00b0C.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Mecanismo de da\u00f1o por helada:&nbsp;<\/strong><\/h3>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Cuando ocurre un evento de radiaci\u00f3n con temperaturas bajo cero se desencadenan dos fen\u00f3menos destructivos a nivel celular:<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Congelaci\u00f3n extracelular y deshidrataci\u00f3n:<\/strong> El agua presente en los espacios intercelulares se congela primero. Dado que la presi\u00f3n de vapor del hielo es menor que la del agua l\u00edquida, se genera un gradiente osm\u00f3tico que \u00absucciona\u00bb agua desde el interior del citosol hacia el espacio intracelular, provocando una severa <strong>deshidrataci\u00f3n celular<\/strong>.<\/li>\n\n\n\n<li><strong>Lisis de membrana:<\/strong> La p\u00e9rdida brusca de turgencia y la formaci\u00f3n de cristales de hielo mec\u00e1nicos en el espacio intercelular pueden rasgar la membrana plasm\u00e1tica.<\/li>\n\n\n\n<li><strong>Estr\u00e9s oxidativo secundario:<\/strong> Al restaurarse la temperatura, la c\u00e9lula acumula <strong>Especies Reactivas de Ox\u00edgeno (ROS)<\/strong>, lo que conduce a la necrosis del tejido y ca\u00edda prematura de botones florales.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Estrategia de aclimataci\u00f3n celular mediante osmolitos y crioprotectores<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para mitigar el impacto de las heladas y complementar las estrategias f\u00edsicas de control (viento, agua), la bioestimulaci\u00f3n foliar preventiva busca modificar las propiedades f\u00edsico-qu\u00edmicas del protoplasma celular mediante tres l\u00edneas defensivas:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Efecto Crioprotector (Depresi\u00f3n del punto de congelaci\u00f3n):<\/strong> Compuestos org\u00e1nicos que act\u00faan aumentando la concentraci\u00f3n de solutos compatibles dentro del citoplasma, bajando la temperatura a la cual el agua celular entra en estado de congelaci\u00f3n.<\/li>\n\n\n\n<li><strong>Osmorregulaci\u00f3n y turgencia:<\/strong> La presencia de amino\u00e1cidos espec\u00edficos (prolina, glicina beta\u00edna) e hidratos de carbono cortos (manitol) retienen el agua dentro de la c\u00e9lula, previniendo el colapso de la membrana ante la deshidrataci\u00f3n extracelular.<\/li>\n\n\n\n<li><strong>Poder Antioxidante y Enzim\u00e1tico:<\/strong> Vitaminas y polifenoles que neutralizan los radicales libres ( ROS antes de que causen peroxidaci\u00f3n lip\u00eddica en las membranas celulares.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Soluciones Coda para la protecci\u00f3n contra heladas primaverales<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El cat\u00e1logo de <strong>coda<\/strong> ofrece un programa t\u00e9cnico bioestimulante dise\u00f1ado para preparar al cultivo 24 a 48 horas antes de eventos t\u00e9rmicos adversos:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>kryoss (Bioestimulante para la tolerancia a heladas):<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Composici\u00f3n:<\/strong> Formulado con osmolitos, crioprotectores y antioxidantes, junto a amino\u00e1cidos libres (2,0% w\/w) y Potasio ( 6,75% w\/w K20).<\/li>\n\n\n\n<li><strong>Modo de acci\u00f3n:<\/strong> Reduce los efectos del da\u00f1o por heladas (de hasta -3,5\u00b0C), preservando la supervivencia de los botones y la integridad de las membranas plasm\u00e1ticas. Prolonga su efecto protector por&nbsp; 8 a 10 d\u00edas..<\/li>\n\n\n\n<li><strong>Dosis recomendada: 1L \/ 100 L <\/strong>&nbsp;&nbsp;de agua ( 10 L\/ha&nbsp; en base a mojamiento de 1000 L\/ha ), aplicado foliarmente entre 24 y 48 horas&nbsp; antes de la helada prevista.<\/li>\n\n\n\n<li><strong>osmoplant (Osmoprotector e hidratante celular):<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Composici\u00f3n:<\/strong> Contiene amino\u00e1cidos libres espec\u00edficos (6,0 % w\/w), Nitr\u00f3geno org\u00e1nico ( 2,4% w\/w), Potasio ( 3,35% w\/w) y osmolitos de origen natural.<\/li>\n\n\n\n<li><strong>Modo de acci\u00f3n:<\/strong> Mantiene el equilibrio h\u00eddrico y la turgencia a nivel celular, evitando que la c\u00e9lula pierde agua por la presi\u00f3n osm\u00f3tica de los cristales helados exteriores.<\/li>\n\n\n\n<li><strong>Dosis recomendada:<\/strong> 250 a 350 cc\/hl v\u00eda foliar en momentos puntuales de estr\u00e9s h\u00eddrico o t\u00e9rmico.<\/li>\n\n\n\n<li><strong>dalgin active (Bioestimulante de algas con amino\u00e1cidos y vitaminas):<\/strong><\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Composici\u00f3n:<\/strong> Extracto de algas (<em>Ascophyllum nodosum<\/em>), amino\u00e1cidos libres (6,0% w\/w), \u00e1cido alg\u00ednico ( 1,5% w\/w), manitol ( 0,5% w\/w) y 1, 35g<br>\/L&nbsp; de vitaminas.<\/li>\n\n\n\n<li><strong>Modo de acci\u00f3n:<\/strong> Estimula la s\u00edntesis end\u00f3gena de fitoalexinas, fortalece las paredes celulares y aporta una alta capacidad antioxidante para neutralizar el estr\u00e9s oxidativo post-helada.<\/li>\n\n\n\n<li><strong>Dosis recomendada: 250 a 300 cc\/hl<\/strong>&nbsp; en aplicaci\u00f3n foliar previa o posterior al evento t\u00e9rmico.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Recomendaciones de Manejo en Terreno<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Monitoreo meteorol\u00f3gico:<\/strong> Planificar la aplicaci\u00f3n de kryoss en una ventana de <img decoding=\"async\" width=\"115\" height=\"25\" src=\"blob:https:\/\/smartcherry.cl\/dcf1885d-3d13-4d2f-8772-264681a171a3\"> antes de la helada pronosticada para permitir la absorci\u00f3n e incorporaci\u00f3n metab\u00f3lica de los componentes en la c\u00e9lula.<\/li>\n\n\n\n<li><strong>Calidad de cubrimiento:<\/strong> Se requiere un mojamiento completo sobre botones florales y ramillas para asegurar que la barrera crioprotectora act\u00fae homog\u00e9neamente en todas las estructuras de la copa.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Nota de transparencia: Recomendaciones t\u00e9cnicas validadas junto al equipo agron\u00f3mico de QR Agro.<\/em><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-link-color wp-element-button\" href=\"https:\/\/smartcherry.cl\/en\/proveedores\/sas-agri\/\">M\u00e1s sobre SAS Aagri<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A principios de septiembre, el avance fenol\u00f3gico expone a los tejidos florales a un riesgo h\u00eddrico y t\u00e9rmico severo por heladas primaverales tard\u00edas. El uso de bioestimulantes especializados ricos en [&hellip;]<\/p>\n","protected":false},"author":274,"featured_media":58418,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[4031],"tags":[1558,4569],"category_proveedor":[],"pais":[],"class_list":["post-58410","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bioestimulantes","tag-not-prov","tag-sas-agri"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Mitigaci\u00f3n del estr\u00e9s por heladas en brotaci\u00f3n: Bioestimulaci\u00f3n osmoprotectora\u00a0 - Smartcherry<\/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:\/\/smartcherry.cl\/en\/bioestimulantes\/mitigacion-del-estres-por-heladas-en-brotacion-bioestimulacion-osmoprotectora\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mitigaci\u00f3n del estr\u00e9s por heladas en brotaci\u00f3n: Bioestimulaci\u00f3n osmoprotectora\u00a0\" \/>\n<meta property=\"og:description\" content=\"A principios de septiembre, el avance fenol\u00f3gico expone a los tejidos florales a un riesgo h\u00eddrico y t\u00e9rmico severo por heladas primaverales tard\u00edas. 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