{"id":1377,"date":"2020-02-05T14:38:05","date_gmt":"2020-02-05T13:38:05","guid":{"rendered":"http:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/?page_id=1377"},"modified":"2024-11-06T13:31:42","modified_gmt":"2024-11-06T12:31:42","slug":"fyziologicka-sypavka","status":"publish","type":"page","link":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/fyziologicka-sypavka\/","title":{"rendered":"Fyziologick\u00e9 sucho (fyziologick\u00e1 sypavka)"},"content":{"rendered":"\n<p><strong>PO\u0160KOZOVAN\u00c9 D\u0158EVINY:<\/strong> jehli\u010dnany<\/p>\n\n\n\n<p><strong>POPIS PO\u0160KOZEN\u00cd:<\/strong> z\u010derven\u00e1n\u00ed a\u017e zhn\u011bdnut\u00ed jehlic a jejich rychl\u00e9 odum\u0159en\u00ed, opad\u00e1n\u00ed, po\u0161kozeny jsou zejm\u00e9na nejmlad\u0161\u00ed ro\u010dn\u00edky jehlic<\/p>\n\n\n\n<p>P\u0159i n\u00e1hl\u00fdch a v\u00fdrazn\u00fdch zimn\u00edch oblev\u00e1ch nebo p\u0159i prudk\u00e9m n\u00e1stupu jara, kdy teploty vystoupaj\u00ed z\u00a0bodu mrazu v\u00fdrazn\u011b nad nulu a je jasn\u00e9 po\u010das\u00ed, jsou v\u011btve strom\u016f znateln\u011b oh\u0159\u00edv\u00e1ny, co\u017e vyvol\u00e1v\u00e1 relativn\u011b silnou transpiraci. Ztr\u00e1ty vody p\u0159itom nemohou b\u00fdt dopln\u011bny z p\u016fdy, kter\u00e1 je p\u0159i povrchu zmrzl\u00e1 nebo velmi chladn\u00e1 cca do 2 \u00b0C. P\u0159\u00edjem vody z\u00a0p\u016fdy je limitov\u00e1n jednak nedostate\u010dnou aktivitou d\u00fdch\u00e1n\u00ed ko\u0159en\u016f a jednak odporem pohybu vody v p\u016fd\u011b. Vodn\u00ed bilance strom\u016f se tak st\u00e1v\u00e1 z\u00e1pornou a obsah vody v pletivech se sni\u017euje pod \u00fanosnou m\u00edru. D\u016fsledkem t\u00e9to ztr\u00e1ty vody je nekontrolovan\u00e9 smr\u0161t\u011bn\u00ed parenchymatick\u00fdch bun\u011bk, nas\u00e1t\u00ed vzduchu a odum\u00edr\u00e1n\u00ed bun\u011bk prov\u00e1zen\u00e9 oxidac\u00ed fenolick\u00fdch l\u00e1tek v\u010detn\u011b ligninu. Tato situace je ozna\u010dov\u00e1na jako &#8222;fyziologick\u00e9 sucho&#8220;, \u201efyziologick\u00e1 sypavka\u201c \u010di \u201ezimn\u00ed vysych\u00e1n\u00ed\u201c.<\/p>\n\n\n<style type=\"text\/css\">\n#foogallery-gallery-2562 .fg-image { width: 365px; }\n#foogallery-gallery-2562 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-none fg-left fg-default fg-ready fg-light fg-border-thin fg-shadow-outline fg-loading-default fg-loaded-fade-in fg-caption-always fg-hover-fade fg-hover-zoom\" id=\"foogallery-gallery-2562\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:true,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2024\/11\/fyziologicka_sypavka-2.jpg\" data-caption-title=\"Projevy fyziologick\u00e9ho sucha na douglasce, Brno 2010.\" data-attachment-id=\"4430\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img fetchpriority=\"high\" decoding=\"async\" title=\"Projevy fyziologick\u00e9ho sucha na douglasce, Brno 2010.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/fyziologicka_sypavka-2\/3868032423.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Projevy fyziologick\u00e9ho sucha na douglasce, Brno 2010.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2024\/11\/fyziologicka_sypavka_maly_siroky.jpg\" data-caption-title=\"Projevy fyziologick\u00e9ho sucha na smrku, \u0160LP K\u0159tiny 2005.\" data-attachment-id=\"4429\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Projevy fyziologick\u00e9ho sucha na smrku, \u0160LP K\u0159tiny 2005.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/fyziologicka_sypavka_maly_siroky\/3611357388.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Projevy fyziologick\u00e9ho sucha na smrku, \u0160LP K\u0159tiny 2005.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2024\/11\/fyziologicka_sypavka-3.jpg\" data-caption-title=\"Projevy vytranspirov\u00e1n\u00ed na smrku, Vysok\u00e9 Tatry 1991.\" data-attachment-id=\"4431\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Projevy vytranspirov\u00e1n\u00ed na smrku, Vysok\u00e9 Tatry 1991.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/fyziologicka_sypavka-3\/4200514197.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-title\">Projevy vytranspirov\u00e1n\u00ed na smrku, Vysok\u00e9 Tatry 1991.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>PO\u0160KOZOVAN\u00c9 D\u0158EVINY: jehli\u010dnany POPIS PO\u0160KOZEN\u00cd: z\u010derven\u00e1n\u00ed a\u017e zhn\u011bdnut\u00ed jehlic a jejich rychl\u00e9 odum\u0159en\u00ed, opad\u00e1n\u00ed, po\u0161kozeny [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full-width.php","meta":{"footnotes":""},"class_list":["post-1377","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/1377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/comments?post=1377"}],"version-history":[{"count":6,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/1377\/revisions"}],"predecessor-version":[{"id":2564,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/1377\/revisions\/2564"}],"wp:attachment":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/media?parent=1377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}