{"id":6916,"date":"2025-02-17T14:20:12","date_gmt":"2025-02-17T13:20:12","guid":{"rendered":"https:\/\/www.gmbu.de\/en\/?p=6916"},"modified":"2026-03-12T09:29:20","modified_gmt":"2026-03-12T08:29:20","slug":"projekt-light4seeds","status":"publish","type":"post","link":"https:\/\/www.gmbu.de\/en\/fachsektionen\/projekt-light4seeds\/","title":{"rendered":"Project \u201eLight4Seeds\u201c"},"content":{"rendered":"\n<p>Acorns, as recalcitrant forest seeds, can generally only be stored for relatively short periods of time. Fructification with sufficient quantities of seed only takes place every 6 &#8211; 12 years. Fungal pathogens such as the black rot pathogen <em>Ciboria batschiana<\/em> can destroy entire harvests. In a time of climate change and the associated need to restructure forests, stocks of sufficient quantities of suitable seed are urgently required. The aim was therefore to develop a fungicide-free process for treating acorns based on irradiation with blue light in the wavelength range 400 &#8211; 430 nm.<br>The basic prerequisite was a thorough examination of the properties of the recalcitrant fruits and the effects of blue light irradiation on their vitality and the pathogens to be inactivated.<br>The result was a demonstrator on a laboratory scale. Various non-contact spectral methods have been tested for feedback sensing. This demonstrated a reduction of acorn-damaging fungal pathogens by more than one log<sub>10<\/sub> in 60 min at an applied dose of 160 J cm<sup>-2<\/sup>, which may lead to a significant extension of the possible storage time.The measurement of tryptophan fluorescence and color parameters in the LAB color space proved particularly remarkable.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"854\" height=\"901\" src=\"http:\/\/www.gmbu.de\/wp-content\/uploads\/2025\/02\/light4seeds.jpg\" alt=\"\" class=\"wp-image-6918\" srcset=\"https:\/\/www.gmbu.de\/wp-content\/uploads\/2025\/02\/light4seeds.jpg 854w, https:\/\/www.gmbu.de\/wp-content\/uploads\/2025\/02\/light4seeds-284x300.jpg 284w, https:\/\/www.gmbu.de\/wp-content\/uploads\/2025\/02\/light4seeds-768x810.jpg 768w\" sizes=\"(max-width: 854px) 100vw, 854px\" \/><figcaption class=\"wp-element-caption\"><em>Demonstrator of a chemical-free treatment process for acorns<\/em><\/figcaption><\/figure>\n\n\n\n<p>INNO-KOM MF, FKZ 49MF220005<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Acorns, as recalcitrant forest seeds, can generally only be stored for relatively short periods of time. Fructification with sufficient quantities of seed only takes place every 6 &#8211; 12 years. Fungal pathogens such as the black rot pathogen Ciboria batschiana can destroy entire harvests. In a time of climate change and the associated need to [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":6918,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54,15,34,28,167],"tags":[],"class_list":["post-6916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dekontamination_und_desinfektion","category-fachsektionen","category-innovationsfelder-jena","category-jena","category-nicht-kategorisiert-de"],"_links":{"self":[{"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/posts\/6916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/comments?post=6916"}],"version-history":[{"count":6,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/posts\/6916\/revisions"}],"predecessor-version":[{"id":6926,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/posts\/6916\/revisions\/6926"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/media\/6918"}],"wp:attachment":[{"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/media?parent=6916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/categories?post=6916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gmbu.de\/en\/wp-json\/wp\/v2\/tags?post=6916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}