20.500.12556/RUL-318 Določanje mejnih fungicidnih vrednosti borove kisline diplomsko delo Determination od fungicidal minimal inhibitory concentrations of boric acid univerzitetni študij Za zaščito lesa se v današnjem času pogosto uporabljajo borove spojine. Imajo več dobrih kot slabih lastnosti. Ena izmed odlik je njihova učinkovitost, slabost pa je neustrezna vezava v les. Kljub temu, da se borove spojine že skoraj 100 let uporabljajo v zaščiti lesa, je v literaturi moč zaslediti veliko nasprotujočih podatkov o mejni fungicidni vrednosti. Zato je bil cilj raziskave določiti mejne fungicidne vrednosti za borovo kislino. Le-te smo določali z 2 metodama in sicer mini blok testom ter presejalnim testom na trdnem gojišču. Za testiranje smo uporabili 5 vrst gliv rjave trohnobe (Antrodia vaillantii, Gloeophyllum trabeum, Coniophora puteana, Lentinus lepideus in Serpula lacrymans), 2 vrsti gliv bele trohnobe (Trametes versicolor ter Hypoxylon fragiforme) ter 2 glivi modrivki (Aureobasidium pullulans in Sclerophoma pythiophila). Rezultati testiranja fungicidne učinkovitosti borove kisline so potrdili, da je borova kislina zelo učinkovit fungicid, saj deluje na glive že pri zelo nizkih koncentracijah. Na borovo kislino je najbolj občutljiva gliva Coniophora puteana, najmanj pa gliva Hypoxylon fragiforme. Nowadays boron compounds are widely used for wood preservation. They have several good properties but some weaknesses, too. One of the most important benefits is their efficacy against wood pests, and their weakness insufficient fixation in wood. Despite of the fact, that they are applied for almost 100 years in the field of wood preservation, in literature there are several controversial data about their efficacy. Therefore, minimal inhibitory concentration in nutrient medium and wood blocks were determined. For testing, 5 brown rot (Antrodia vaillanti, Gloeophyllum trabeum, Coniophora puteana, Lentinus lepideus and Serpula lacrymans), 2 white rot (Trametes versicolor and Hypoxylon fragiforme) and 2 blue stain fungi (Aureobasidium pullulans and Sclerophoma pithyophila) were applied. Results of the fungicidal testing of boric acid confirmed that boric acid is a very effective fungicide inhibiting fungal growth at relatively low concentrations. The most boron sensitive fungus was Coniophora puteana, and the most resistant one Hypoxylon fragiforme. zaščita lesa borova kislina minimalna inhibitorna koncentracija lesne glive wood preservation boric acid minimal inhibitory concentration wood fungi true false false [M. Poglajen] Slovenski jezik Angleški jezik Diplomsko delo 2014-07-11 12:25:04 2014-07-11 12:25:04 2022-07-11 10:18:15 0000-00-00 00:00:00 2008 0 Ljubljana 0 XI, 64 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*841 1678473 dn_poglajen_matija.pdf dn_poglajen_matija.pdf 1 9EA0AAAD112F2EEEB1FA592AD9D6820D 96798dd537845c5e121d7dc0c19881e1c9c068fa8b01d11d18d8ef0896a8fc4b 5cd2dbaf-a1b9-11eb-a523-00155dcfd717 20.500.12556/rul/5d3485fb-8cc8-4099-b284-0d239a0c9756 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132301 Biotehniška fakulteta 0 0 0