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Decay of oak heartwood by selected fungi species

100%

Szewczyk W., Molinska-Glura M.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2010

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tom 09

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nr 3-4

One of the methods limiting the damages done by Armillaria species is to decrease the number of dead wood stumps attacked by it, particularly it refers to deciduous tree stumps.The objective of the presented paper was an attempt to estimate the possibility to select some saprotrophic fungi species whose ability of decaying oak wood is higher and faster than that of Armillaria ostoyae (Romagn.) Herink and Armillaria gallica Marxm & Romagn, and which could be utilized in a biological protection method preventing Armillaria root-wood attack. All analyzed wood samples were colonized by tested mycelia. Among the fungi which could be utilized in a biological method of protection against root mould caused by Armillaria, the fungus Tramestes versicolor has shown to be the best suited for this purpose. Four different isolates were tested, which have confirmed their efficiency in decaying oak heartwood. Therefore, this fungus could be used for the elaboration of a biopreparation protecting effectively against Armillaria root rot.

2

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Chosen properties of oak wood immersed for 6 months in the Baltic Sea

100%

Fojutowski A., Wroblewska H., Kropacz A., Komorowicz M., Noskowiak A., Pomian I.

Folia Forestalia Polonica. Series B - Drzewnictwo

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2011

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tom 42

Changes of physical and chemical properties, mass loss and susceptibility of oak wood to decay caused by Basidiomycetes fungi were assessed after wood samples had been taken out of the sea within the framework of MACHU project. Test samples of oak wood of the dimensions of 250 × 10 × 10 mm were placed in coastal waters of the Baltic Sea at the area of medieval seaport in Puck and in waters of the Gdansk Bay at the same longitude as Orłowo (near the wreck of Swedish warship Solen). The samples taken out of the sea were examined visually and described. Changes in mass of the samples, their bending strength and modulus of elasticity, compression strength along the grain, ability to decay caused by Trametes versicolor fungus, content of mineral substances and substances soluble in water, ethanol-benzene mixture and in 1-percent aqueous solution of NaOH, content of cellulose, lignin and pentosanes as well as pH of the wood were investigated. The properties of samples taken out of the sea after 6 months of immersion were compared with the properties of control twin samples of oak wood which had not been immersed. The results obtained so far indicate that noticeable, measurable changes in oak wood immersed in sea occur already in half a year since immersion, so observation of them may be useful for protection and monitoring of underwater archaeological objects.

3

Rate of change of pine litter fall and decay in response to changing climate along N-S transect

100%

Breymeyer A.

Polish Journal of Ecology

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2003

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tom 51

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nr 4

The response of pine ecosystems to changing latitude and thermoclimate in Central/Northern Europe was investigated through the measurements of rates of two ecosystem processes: organic matter (litter) production and decomposition. Studies were carried out at nine sites of pine and mixed pine forests placed along the N-S transect of about 2000 km crossing Finland, Estonia, Latvia, Lithuania and Poland. Warmer climates were observed with movement to southern sites; the coefficient of determination (R2) between annual long-term temperature and latitude was at the level of 0.99. The rates of change of both processes were compared in terms of relative increment per 1°C of long-term temperature and per -1° of latitude, and expressed in %. Litter production responds stronger to the southward change of climate: the fall of litter is 18-19% greater per +1°C of average annual temperature and by 8% greater per each -1° of latitude, compared to the decomposition process, which was accelerated at the rate of 9-12% per 1°C and 4-5% per -1° of latitude. These results are summarized by the statement that in pine ecosystems the OM Production Sub-system is more sensitive to change of climate than the Sub-system of OM Decay, which is more conservative.

4

Disease changes in root systems of Quercus robur L. and Betula pendula Roth. trees and fungi identified in roots dead and showing decay

100%

Przybyl K.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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1999

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tom 63

5

Decay of the heartwood in lower and upper trunk of Pinus sylvestris by Porodaedalea pini

80%

Szewczyk W.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

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2016

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tom 15

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nr 3

6

Evaluation of grapefruit coating with chemical preservatives as control measure against postharvest decay

80%

Abdel-Kader M., El-Mougy N., Lashin S.

Phytopathologia

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2011

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tom 59

7

Magnetic-time model at off-season germination

80%

Mahajan T. S., Pandey O. P.

International Agrophysics

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2014

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tom 28

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nr 1

Effect of static magnetic field on germination of mung beans is described. Seeds of mung beans, were exposed in batches to static magnetic fields of 87 to 226 mT intensity for 100 min. Magnetic time constant – 60.743 Th (Tesla hour) was determined experimentally. High value of magnetic time constant signifies lower effect of magnetic field on germination rate as this germination was carried out at off-season (13°C). Using decay function, germination magnetic constant was calculated. There was a linear increase in germination magnetic constant with increasing intensity of magnetic field. Calculated values of mean germination time, mean germination rate, germination rate coefficient, germination magnetic constant, transition time, water uptake, indicate that the impact of applied static magnetic field improves the germination of mung beans seeds even in off-season.

8

The low temperature drying of soybean [ Glycine max ] seeds as a factor reducing injuries caused by exposure to chill during subsequent germination

80%

Dubert F., Filek W.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1995

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tom 43

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nr 1

9

The role of microorganisms in the decay of parchment

80%

Strzelczyk A. B., Karbowska J.

Acta Microbiologica Polonica

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1994

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tom 43

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nr 2

10

Decay of pesticides residues in bee honey

80%

Kubik M., Nowacki J., Michalczuk L., Pidek A., Warakomska Z., Goszczynski W.

Journal of Fruit and Ornamental Plant Research

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1998

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tom 06

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nr 2

11

Mycobiota of thin roots showing decay of Fraxinus excelsior L. young trees

70%

Przybyl K.

Dendrobiology

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2002

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tom 48

The aims of the study were to identify the fungi associated with the decay of thin roots (1-5 mm) of 1, 3 and 15-year-old Fraxinus excelsior plants and to estimate the pathogenicity of certain fungi. In total, 400 fungal isolations were performed from which 334 cultures were obtained. Altogether, 26 species of fungi were identified. The following species were most frequently obtained, independently of plant age and origin: Alternaria alternata, Chaetomium globosum, Cryptosporiopsis sp., Fusarium oxysporum, F. solani and Cylindrocarpon destructans. The last three of these were then used in an inoculation test. F. oxysporum caused the death of over 80% of 2-month-old seedlings grown in boxes containing perlite and kept in a growth chamber.

Ograniczanie wyników

Decay of oak heartwood by selected fungi species

Chosen properties of oak wood immersed for 6 months in the Baltic Sea

Rate of change of pine litter fall and decay in response to changing climate along N-S transect

Disease changes in root systems of Quercus robur L. and Betula pendula Roth. trees and fungi identified in roots dead and showing decay

Decay of the heartwood in lower and upper trunk of Pinus sylvestris by Porodaedalea pini

Evaluation of grapefruit coating with chemical preservatives as control measure against postharvest decay

Magnetic-time model at off-season germination

The low temperature drying of soybean [ Glycine max ] seeds as a factor reducing injuries caused by exposure to chill during subsequent germination

The role of microorganisms in the decay of parchment

Decay of pesticides residues in bee honey

Mycobiota of thin roots showing decay of Fraxinus excelsior L. young trees