Vpliv širine branik kostanjevine na odpornost proti glivam razkrojevalkam

diplomski projekt

Klemen Krk (Author), Primož Oven (Reviewer), Miha Humar (Mentor)

Abstract

Kostanjevino uvrščamo med najbolj naravno odporne slovenske lesne vrste. Želeli smo raziskati odpornost jedrovine kostanja na glive razkrojevalke. Pri hrastovem lesu se je izkazalo, da ima širina branik značilen vpliv na odpornost, zato smo se odločili ta fenomen raziskati tudi pri jedrovini kostanja. Izdelali smo vzorce kostanjevine iz lesa z različno širokimi branikami in jih izpostavili petim glivam razkrojevalkam lesa: Gloeophyllum trabeum, Antrodia vaillanti, Pleurotus ostreatus, Trametes versicolor in Stereum hirsutum. Glivam smo izpostavili tudi kontrolne vzorce smreke in bukve. Izgubo mase smo določili gravimetrično, po šestnajstih tednih izpostavitve. Ugotovili smo, da na naravno odpornost proti glivam razkrojevalkam lesa širina branike kostanjevine ne vpliva. Vsi preizkušanci so imeli izgubo mase zaradi delovanja gliv nižjo od 5 %, kar uvršča les med zelo odporne lesne vrste

Keywords

kostanjevina;širina branik;lesne glive;razkroj;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[K. Krk]
UDC:	630844.2:630811.4
COBISS:	2573193
Views:	296
Downloads:	72
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Influence of growth ring-widths on chesnut durability against decay fungi
Secondary abstract:	The chestnut is ranked among the most naturally durable wood species in Slovenia. Our aim was to determine the durability of the chestnut's heartwood to wood decay fungi. In previos studies on oak wood it has been proven that width effect durability of wood. Hence, we decided to analyse this phenomenon in the heartwood of the chestnut as well. Samples made of chestnut wood with various rings widths were exposed to five wood decay fungi, namely: Gloeophyllum trabeum, Antrodia vaillant, Pleurotus ostreatus, Trametes versicolor and Stereum hirsutum. In parallel control samples made of spruce and beech wood were exposed to fungi as well. Mass loss was determined gravimetrically after sixteen weeks of exposure. The results showed that the natural durability against wood decay fungi is not affected by the ring chestnut heartwood. Mass loss of the all investigated sweet chestnut wood species was lower than 5 %, which ranks this wood among the durable wood species.
Secondary keywords:	chesnut;ring-width;wood fungi;decay;
Type (COBISS):	Diploma project paper
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	VIII, 38 f.
ID:	11928320