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Določanje mejnih fungicidnih vrednosti borove kisline : diplomsko delo
Poglajen, Matija (Author), Humar, Miha (Mentor) More about this mentor... This link opens in a new window, Pohleven, Franc (Reviewer)

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Abstract
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.

Language:Slovenian
Keywords:zaščita lesa, borova kislina, minimalna inhibitorna koncentracija, lesne glive
Work type:Undergraduate thesis (m5)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2008
Publisher:[M. Poglajen]
Number of pages:XI, 64 f.
Place:Ljubljana
UDC:630*841
COBISS.SI-ID:1678473 Link is opened in a new window
Views:800
Downloads:195
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Secondary language

Language:English
Title:Determination od fungicidal minimal inhibitory concentrations of boric acid : univerzitetni študij
Abstract:
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.

Keywords:wood preservation, boric acid, minimal inhibitory concentration, wood fungi

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