{"id":263,"date":"2013-12-02T21:25:48","date_gmt":"2013-12-02T20:25:48","guid":{"rendered":"http:\/\/www.okusnivrt.com\/novice\/?p=263"},"modified":"2013-12-02T21:25:48","modified_gmt":"2013-12-02T20:25:48","slug":"prenospora-vinske-trte","status":"publish","type":"post","link":"https:\/\/www.okusnivrt.com\/novice\/prenospora-vinske-trte\/","title":{"rendered":"Perenospora vinske trte"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-265\" alt=\"perenospora vinske trte\" src=\"http:\/\/www.okusnivrt.com\/novice\/wp-content\/uploads\/2013\/12\/perenospora_vinske_trte.jpg\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.okusnivrt.com\/novice\/wp-content\/uploads\/2013\/12\/perenospora_vinske_trte.jpg 300w, https:\/\/www.okusnivrt.com\/novice\/wp-content\/uploads\/2013\/12\/perenospora_vinske_trte-150x150.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Predstavniki dru\u017eine Perenosporaceae so<br \/>\npredvsem patogeni, ki povzro\u010dajo o\u017eige kro\u0161enj. Napadajo mlado, zeleno tkivo,<br \/>\nvejice in plodove. Njihov razvoj je mo\u010dno odvisen od prisotnosti filma vode na<br \/>\npovr\u0161ini rastlinskega tkiva in visoke vla\u017enosti med hladnimi ali toplimi (ne<br \/>\ntudi vro\u010dimi) obdobji. Bolezen povzro\u010da patogen <em>Plasmopara viticola<\/em>, ki<br \/>\nse pojavlja skoraj povsod, kjer gojijo trto. Gliva je avtohtona v Sev. Ameriki.<br \/>\nAvtohtona trta pri napadu glive ni mo\u010dno prizadeta, kar pa ne velja za evropsko<br \/>\ntrto Vitis vinifera, med katero se je bolezen za\u010dela \u0161iriti okrog leta 1875.<br \/>\nTudi danes je ta vrsta trte najbolj ob\u010dutljiva na tega patogena.<\/p>\n<h2>Simptomi<\/h2>\n<p>Ob napadu<br \/>\ntrte se najprej pojavijo na povr\u0161ini listov majhne blede neenakomerne pike. Na<br \/>\nspodnji strani pik se razvijejo sporagijofori. Pozneje nastanejo na mestih pik<br \/>\nnekroze, ki porjavijo. Pogosto pa se tak\u0161na nekroti\u010dna mesta pove\u010dujejo in<br \/>\nzlivajo v velike povr\u0161ine odmrlega tkiva, kar lahko vodi v propad in odpadanje<br \/>\nlistja. Med zgodnjimi fazami rasti in razvoja cvetov ali plodov, lahko gliva<br \/>\nnapade tudi poganjke, liste ali grozde, ki so hitro prera\u0161\u010deni z micelijem. V<br \/>\nprimeru, da gliva napade bolj razvite jagode pa se micelij razraste predvsem v<br \/>\nnotranjosti jagod.<\/p>\n<p>Patogen<br \/>\n<em>P. viticola<\/em> prezimi v obliki oospor v odmrlem rastlinskem materialu,<br \/>\nv\u010dasih pa tudi v oku\u017eenih vejah. Med vla\u017enim spomladanskim obdobjem oospore<br \/>\nkalijo in tvorijo sporangije. Sporangiji ali zoospore se nato z vetrom prenesejo<br \/>\nna liste, kjer oku\u017eijo rastlino skozi listne re\u017ee. Skozi listne re\u017ee micelij<br \/>\npo\u017eene sporangijofore, ki slu\u017eijo za hitro raz\u0161irjanje oku\u017ebe in\/ali sekundarno<br \/>\noku\u017ebo. Za sam razvojni krog je potrebno od 5 so 18 dni, kar je odvisno od<br \/>\nvla\u017enosti, temperature in drugih faktorjev.<\/p>\n<h2>Za\u0161\u010dita<\/h2>\n<p>Uporabimo lahko razli\u010dna sredstva na osnovi<br \/>\nditiokarbamtov<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Predstavniki dru\u017eine Perenosporaceae so predvsem patogeni, ki povzro\u010dajo o\u017eige kro\u0161enj. Napadajo mlado, zeleno tkivo, vejice in plodove. Njihov razvoj je mo\u010dno odvisen od prisotnosti filma vode na povr\u0161ini rastlinskega tkiva in visoke vla\u017enosti med hladnimi ali toplimi (ne tudi vro\u010dimi) obdobji. Bolezen povzro\u010da patogen Plasmopara viticola, ki se pojavlja skoraj povsod, kjer gojijo trto. Gliva &hellip; <a href=\"https:\/\/www.okusnivrt.com\/novice\/prenospora-vinske-trte\/\" class=\"more-link\">Preberi ve\u010d <span class=\"screen-reader-text\">Perenospora vinske trte<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":265,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[36],"tags":[38,48],"class_list":["post-263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bolezni","tag-glive","tag-glivne-bolezni"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Perenospora vinske trte - Okusni vrt<\/title>\n<meta name=\"description\" content=\"Perenospora vinske trte je bolezen, na katero je zelo ob\u010dutljiva evropska vinska trte. 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