Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2008 (vol. 56), issue 2
Sledování fenologie modřínu opadavého (Larix decidua Mill.) v oblasti Drahanská vrchovina
A phenological study on European larch (Larix decidua Mill.) in the Drahanská vrchovina highlands
Emilie Bednářová, Lucie Merklová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 13-20 | DOI: 10.11118/actaun200856020013 
The phenological study on the onset and duration of individual phenological phases of European larch (Larix decidua Mill.) has been performed using sample trees growing in the research station of the Faculty of Forestry and Wood Technology, MUAF Brno for altogether 15 years. This study involves also recording of meteorological data. In this region, the European larch is an introduced woody species and its share in the stand composition is approximately 8%.In European larch, the phenological stages have a markedly periodic character but they are also largely dependent on a complex of exogenous conditions, especially of climatic effects; this...
Možnost použití sušených organických a organominerálních hnojiv jako náhrady za chlévský hnůj u raného květáku
The possibility of using dried organic and organomineral fertilizers as an alternative to farmyard manure in early maturing cauliflower
Stanislav Boček, Ivan Malý, Šárka Patočková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 21-30 | DOI: 10.11118/actaun200856020021
Experiments were conducted in field plots to evaluate the effects of three alternative dried organic, or organomineral, fertilizers on yield and quality of the early maturing cauliflower variety, 'Gameta'. Plots were established in Žabčice (South Moravia, Czech Republic) in 2005-2007. We used the following fertilization treatments: Agormin T, Agro, Dvorecký agroferm, cattle farmyard manure and solo mineral fertilizers, compared to an unfertilized control. All plots, except the control, were fertilized to achieve the same level of nutrients, as determined by the soil analyses and the chosen target yield. We assessed the following traits at harvest:...
Výnos a kvalita keříčkových průmyslových rajčat hnojených sušenými organickými a organominerálními hnojivy
Yield and quality of bush processing tomatoes fertilized with dried organic and organomineral fertilizers
Stanislav Boček, Ivan Malý, Šárka Patočková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 31-38 | DOI: 10.11118/actaun200856020031
The effect of dried organic and organomineral fertilizers on the yield and quality of the bush processing tomatoes variety 'Proton' were explored in 2005-2006. Field experimental plots were established in Žabčice in the Czech Republic. The following variants of fertilizers were included: Agormin T, Agro, Dvorecký agroferm, farmyard manure, mineral fertilizers and unfertilized control. All plots, except the control, were fertilized with mineral fertilizers on the same nutrients level. Total yield, marketable yield, number of fruits and mean fruit weight were assessed. Total solids, carotenoids, ascorbic acid and nitrates (mg.kg-1 of fresh...
SLEDOVÁNÍ POČTU PROBIOTICKÝCH BAKTERIÁLNÍCH BUNĚK LACTOBACILLUS CASEI VE FERMENTOVANÝCH TEPELNĚ NEOPRACOVANÝCH SALÁMECH
Monitoring of probiotic bacterial cells Lactobacillus casei in dry fermented sausages
Radka Burdychová, P. Hoferková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 39-44 | DOI: 10.11118/actaun200856020039
Combination of microbiology cultivation methods and methods of molecular biology is the best way how to achieve correct qualitative and quantitative probiotic analysis. The aim of this study was monitoring of amounts of different starter bacteria supplemented with probiotic bacterial cells Lactobacillus casei (Chr. Hansen) during fermentation and ripening of fermented sausages. Two starter cultures, one consisted of Pediococcus pentosaceus and Staphylococcus xylosus, the second of Pediococcus pentosaceus and Staphylococcus carnosus, were used for the production of sausages. As a detection method of starter and probiotic...
HODNOCENÍ STROJŮ PRO DEFOLIACI VINIC S OHLEDEM NA KVALITU PRODUKCE
The classification of machines for vineyard defoliation in relation to production quality
Patrik Burg
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 45-50 | DOI: 10.11118/actaun200856020045
Defoliation fulfilment in correct terms, range and intensity effects highly on conditions of bunches and quantity of their contentual matters. Due care reduction of foliar surface together with sunshine allows better access of air to the proximity of bunches and their quicker drying up. The development of fungal diseases is not so quick. Notably hold under especially the peril of charging by cluster with Botrytis, whose harvest its possible take away to the later term. Better insolation at the same time abetment by soaking of clusters and degradation of apple acid.It is possible to make one-shot or gradual defoliation. By smaller growers...
HODNOCENÍ PARAMETRŮ ŠTĚPKY PŘI ŠTĚPKOVÁNÍ RÉVÍ Z RŮZNÝCH ODRŮD RÉVY VINNÉ
The classification of wood chips parameters by crushing of waste cane from different varieties of grapevine
Patrik Burg, Jiří Souček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 51-56 | DOI: 10.11118/actaun200856020051
This work deales with exploitatives parameters monitoring of wood shreder PEZZOLATO 110 Mb by crushing of waste cane of six varieties. The results shows that the wood shreders efficiency, fuel consumption and the wood chips elements size can be influenced by varieties characters of cane. The valued machines efficiency was 230-470 kg.h-1 by average volume 40.70 % water in wood. The highest values by cane crushing had the variety Saint Laurent (0.47 t.h-1) and the lowest variety Blauer Portugieser (0.23 t.h-1). The specific consumption of petrol Natural 95 was 4.52.10-3-8.12.10-3 l.kg-1....
Genetická struktúra deviatich plemien koní
Genetic structure of nine horse populations
Monika Burócziová, J. Říha, R. Židek, J. Trandžík, D. Jakabová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 57-60 | DOI: 10.11118/actaun200856020057
In the present study was estimate the genetic diversity and relationships among nine horses breeds in Czech and Slovak Republic.In conclusion, the main objective of study was to show the level of genetic distance among the horse breeds with different history of breeding of each country. Furthermore, it should be clarified whether these populations and subpopulations are distinct enough from each other to justify defining separate breeds. This research concerns the variability of microsatellite markers in genotypes of horse.We compared the genetic diversity and distance among nine horse breeds Czech and Slovak Warmblood both of Czech origin,...
VLIV POVRCHOVÉ VRSTVY NA RYCHLOST KOROZNÍ DEGRADACE
Influence of the surface layer on the corrosion degradation rate
Michal Černý, Josef Filípek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 61-72 | DOI: 10.11118/actaun200856020061
This work deals with the problem of cutting conditions effect on a formation of surface layers, which influences the attributes of the final component surface. The effect of cutting the tension in surface layers examination was carried out. The observation of the surface layer tensions in the component machined by sharp and dull cutting edge was compared. The steel ČSN 41 1500 (E 295) was chosen as the tested material. After cutting the components were exposed to the corrosive medium and subsequently their resistance to corrosion was mutually compared. On the basis of this observation was raised a conclusion that the components machined by dull cutting...
VYUŽITÍ UMĚLÝCH NEURONOVÝCH SÍTÍ PRO KLASIFIKACI SIGNÁLŮ BIOSENZORŮ
Use of artificial neural networks in biosensor signal classification
Vlastimil Dohnal, Lenka Podloucká, Zuzana Grosmanová, Jiří Krejčí
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 73-80 | DOI: 10.11118/actaun200856020073
Biosensors are analytical devices that transforms chemical information, ranging from the concentration of a specific sample component to total composition analysis, into an analytical signal and that utilizes a biochemical mechanism for the chemical recognition. The complexity of biosensor construction and generation of measured signal requires the development of new method for signal evaluation and its possible defects recognition. A new method based on artificial neural networks (ANN) was developed for recognition of characteristic behavior of signals joined with malfunction of sensor. New algorithm uses unsupervised Kohonen self-organizing neural...
VLIV SUMY EFEKTIVNÍCH TEPLOT NA AKUMULACI ZÁSOBNÍCH LÁTEK V KOŘENOVÉM SYSTÉMU VOJTĚŠKY SETÉ (MEDICAGO SATIVA L.)
Effect of cumulative growing degree day on accumulation of alfalfa (Medicago sativa L.) root reserve saccharides
Josef Hakl, Jaromír Šantrůček, Pavel Fuksa, Josef Kalista
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 81-86 | DOI: 10.11118/actaun200856020081
The aim of this study was to investigate the relation between growing degree day method and accumulation of root reserve saccharides before over wintering by alfalfa (Medicago sativa L.) in the condition of Czech Republic. In 2002-2004, the field experiment was conducted at the Research station of the Czech University of Life Sciences in central Bohemia. The interval between summer and last autumn harvest was 40-50 days or 60-70 days, respectively. These intervals were expressed as cumulative growing degree-days (GDD) for each year. The plants were sampled in each autumn with four replicates for each variant; the average depth of sampling was...
ZMĚNA POTENCIÁLNÍHO ROZŠÍŘENÍ MANDELINKY BRAMBOROVÉ (LEPTINOTARSA DECEMLINEATA, SAY 1824) V ČR BĚHEM PRVNÍ POLOVINY 21. STOLETÍ
The change of the potential occurence of Colorado Potato Beetle (Leptinotarsa decemlineata, Say 1824) in the Czech Republic till 2050
Eva Kocmánková, Miroslav Trnka, Daniela Semerádová, Zdeněk Žalud, Martin Dubrovský, Martin Možný, Jan Juroch, Hana Šefrová
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 87-94 | DOI: 10.11118/actaun200856020087
This present study is focused on the modeling of the most important potato pest i.e Colorado potato beetle (Leptinotarsa decemlineata, Say 1824) development in relation to the climate conditions over the area of the Czech Republic. The aim was to develop a model allowing the assessment of the CPB possible spread under the climate change. For the estimation of the CPB occurrence in expected climate conditions we used a dynamic model CLIMEX that enables to determine the suitability of a given location climate for the pests survival and infestation capability based on known pests requirements to the climate conditions. Following the validation...
Změny fyzikálních a chemických parametrů hypertrofního rybníka po aplikaci prasečí kejdy
Variations of physical and chemical parameters in hypertrophic pond within pig slurry application
Radovan Kopp, Jan Mareš, Andrea Ziková, Tomáš Vítek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 95-100 | DOI: 10.11118/actaun200856020095
During the years 2001 and 2002 we conducted hydrochemical monitoring of intensively managed pond to evaluate the impact of high pig slurry doses on eutrophication. Pig slurry application was carried out in colder period of the year (February-April) via tube system with sludge pump from nearby piggery.Our results showed that pig slurry application do not permanently affect the water quality of Jarohněvický pond. When the correct application is made slurry is effectively utilized by biomass for the growth, which prevents surface and underground waters to be polluted as in the case of incorrect application on agricultural land.Critical point of...
Výskyt enterokoků ve vepřovém a hovězím mase a jejich multirezistence na antibiotika
Occurrence of enterococci in raw pork and beef and their antibiotics multiresistance
Miroslav Kročko, Margita Čanigová, Viera Ducková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 101-106 | DOI: 10.11118/actaun200856020101
The aim of this study was to determine the microbial contamination of raw pork and beef, to estimate the prevalence of enterococci and investigate the antibiotic multiple resistance of enterococci. Total bacterial counts (TBC) were cultured on Plate count agar and enterococci count were cultured on Slanetz - Bartley agar. The TBC after 24 h post mortem reached the value 3.61 ± 0.78 log cfu.cm-2 for pork and 2.58 ± 0.63 log cfu.cm-2 for beef. The count of enterococci after 24 h post mortem reached the value 1.98 ± 1.29 log cfu.cm-2 for pork and 1.16 ± 0.47 log cfu.cm-2...
VLIV ZRÁNÍ NA TEXTURNÍ VLASTNOSTI EIDAMSKÝCH SÝRŮ
Influence of ripening of Edam cheese on texture properties
Táňa Lužová, Šárka Povolná, Šárka Nedomová, K. Šustová, Veronika Blašková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 107-114 | DOI: 10.11118/actaun200856020107
In this study were evaluated the Edam cheeses with fat content in dry matter 30% and 45% (w/w) produced using two different starter cultures YY and LL during 6 months of ripening. Sampling times were 26, 54, 89, 117, 146 and 180 days after production. The surface and central parts of cheeses have been evaluated separately.Cheese texture was analysed by using a Tira test 27025. The force needed to compress the sample was recorded (N).Ripening time had significant effect on rheological characteristics of the cheeses. The improvement of texture was related to the ripening time. At the beginning of ripening (1st month), there is a significantly...
Deformační a lomové chování tmavé čokolády
Deformation and fracture properties of dark chocolate
Libor Severa
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 115-122 | DOI: 10.11118/actaun200856020115
Series of mechanical tests (uniaxial compression test, Brasil test, plate bending test) with cylidrical specimens made from dark chocolate have been performed. The stress-strain dependence has been ploted and modeled using data from compression test. The strain behaviour of the chocolate was found to be far from the linear elastic strain. The linear elasticity is limited for the very small strains. The Brasil test led to the development of the tensile stress in the specimen and its cracking. The dependence of the tensile stress on the strain rate has been confirmed. Also the linearity of the force vs. displacement data received during plate bending...
OCHRANA MÁKU SETÉHO (PAPAVER SOMNIFERUM L.) PŘED KRYTONOSCEM KOŘENOVÝM (STENOCARUS RUFICORNIS STEPHENS) FOLIÁRNÍ APLIKACÍ
The protection of the poppy plant (Papaver somniferum L.) against poppy weevil (Stenocarus ruficornis Stephens) by foliar application
Karel Sikora
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 123-130 | DOI: 10.11118/actaun200856020123
Poppy seed (Papaver somniferum L.) is an annual autumn or spring plant. This crop is cultivated generally for seed which is used as a foodstuff in food processing industry. The biological efficacy of different tested active ingredients (lambda-cyhalothrin, bifenthrin, aplha-cypermethrin, DE-225 and combination chlorpyrifos + cypermethrin) on poppy weevil (Stenocarus ruficornis S.) was evaluated in comparison with reference active ingredient (carbofuran) used as a standard treatment. The active ingredients were applied against the mentioned pest once in the season and were used in doses which were similar to those used against stem weevils...
VLIV INTENZITY HNOJENÍ A VYUŽITÍ NA DRUHOVOU DIVERZITU A KVALITU TRAVNÍHO POROSTU
Effect of fertilization and use intensity on the diversity and quality of herbage
Jiří Skládanka, František Hrabě, Pavel Heger
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 131-138 | DOI: 10.11118/actaun200856020131
The objective of the paper is to assess the species composition of grass stands used under regime of two and three cuts, the grassland species diversity and the grassland quality at different levels of nutrition. The experimental site is situated in the Bohemian-Moravian Upland at an altitude of 650 m a.s.l. The subjects of assessment are two-cut and three-cut grass stands with diverse intensities of nutrition: unfertilized, 30 kg ha-1 P and 60 kg ha-1 K fertilized, fertilized with 90 kg ha-1 N+PK, and fertilized with 180 kg ha-1 N+PK. Studied characteristics were as follows: share of dominant species in...
VLIV PŘÍDAVKU CHEMICKÉHO KONZERVAČNÍHO PŘÍPRAVKU NA KVALITU SILÁŽE LUPINY
The effect of different chemical preservative supplementation on the lupin silage quality
Jiří Skládanka, Petr Doležal
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 139-146 | DOI: 10.11118/actaun200856020139
The aim of this study was to evaluate the effect of a chemical preservative supplementation on the quality of lupine silage as compared with untreated controls. Fresh green Lupine (Lupines lupine), variete Juno, dry matter content 187.15 g/kg at full waxy stage of maturity were chopped to the legth of cut ca 30-50 mm. The crop was artificially wilted for a periody 24 h and ensiled as described above. Lupine were ensiled for 98 days in laboratory silos, capacity about 4 l alone or with supplementation of chemical preservative 3 and 6 l/tone forage respectively). The relatively mean WSC content and the low buffering capacity of lupine crop provided...
Využitelnost biomasy pro proces zplyňování
Biomass utilization for the process of gasification
Josef Spěvák, Miroslav Havlíček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 147-156 | DOI: 10.11118/actaun200856020147
Biomass as one of the renewable resources of energy has bright future in utilization, especially in obtaining various forms of energy (heat, electrical energy, gas).According to the conception of energy policy of the Czech Republic and according to the fulfillment of the indicators of renewable resources using until the year 2010, the research of thermophysical characteristics of biofuels was realized.There were acquired considerable amount of results by combustion and gasification process on the basis of three-year project "Biomass energy parameters." By means of combustion and gasification tests of various (biomass) fuels were acquired the...
VÝSKYT VLÁHOVÝCH DEFICITŮ U HLAVNÍCH DRUHŮ PLODIN V JEJICH KRITICKÝCH VÝVOJOVÝCH STADIÍCH V NEJSUŠŠÍCH OBLASTECH ČR V LETECH 1961-2000
The occurrence of moisture deficits for representatives of main crop sorts in their critical development stages in driest regions of the Czech Republic in years 1961-2000
Pavel Spitz, Ivo Hemerka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 157-166 | DOI: 10.11118/actaun200856020157
The article presents acquired results of moisture deficits for representatives of main crop sorts in their very critical development stages on soil moisture in our driest regions (Žatecko, Litoměřicko, Middle Bohemia, East Bohemia, Southern Moravia, South-East Moravia, Middle Moravia) in the years 1961-2000. The calculations were realized by the specially developed program BIVPROG 1 (the balance moisture program) for PC for perennial wheat (as representative of cereals), perennial rape (technical crops), potatoes (root-crops) and alfalfa (fodder crops), in its first crop year. The results of the calculations are probabilities of over fullfilment of...
SEQUESTRACE UHLÍKU V AGROEKOSYSTÉMU
Carbon sequestration in the agroecosystem
Tomáš Středa, Vítězslav Vlček, Jaroslav Rožnovský
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 167-174 | DOI: 10.11118/actaun200856020167
Reduction of amount CO2 is possible by carbon sequestration to the soil. Fixation potential of EU-15 agricultural land is c. 16-19 mil t C.year-1. Amount and composition of post-harvest residues is essential for carbon soil sequestration. Long-term yield series of the most planted crops (winter wheat - Triticum aestivum, spring barley - Hordeum vulgare, corn and silage maize - Zea mays, winter rape - Brassica napus, potatoes - Solanum tuberosum, sugar beet - Beta vulgaris, alfalfa - Medicago sativa, red clover - Trifolium pratense, white mustard - Sinapis alba and...
HYDROBIOLOGICKÁ STUDIE ŘÍČKY BOBRAVY
Hydrobiological study of the Bobrava rivulet
Ivo Sukop
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 175-180 | DOI: 10.11118/actaun200856020175
The qualitative and quantitative composition of macrozoobenthos in the Bobrava rivulet was summarized utilizing former and recent studies. Altogether, 187 taxa of macrozoobenthos were determined in the Bobrava rivulet and its tributaries until now. The highest values of macrozoobenthos were found on the stony substrate with mean values of biomass and density corresponding to 18.7 g.m-2 and 2922 ind.m-2, respectively. Lower values were determined on the muddy and sandy substrates with 12.4 g.m-2 and 1587 ind.m-2, and 4.2 g.m-2 and 531 ind.m-2, respectively. The index of saprobity upstream...
PERIODICKÉ TŮNĚ DOLNÍHO PODYJÍ
Temporary periodical pools of the lower reaches of the Dyje (Thaya) River
Ivo Sukop
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 181-188 | DOI: 10.11118/actaun200856020181
The qualitative composition and biology of aquatic invertebrates of the periodical pools of the lower Podyjí region is presented in the study. In the floodplains of south Moravia are many of vernal periodical pools with typical fauna e. g. Lepidurus apus, Eubranchipus grubii, Cyzicus tetracerus, Stygobromius ambulans, Hemidiaptomus amblyodon, Mixodiaptomus kupelwieseri, Diaptomus castor. Periodical vernal poools emerge after snow thawing, rains or floods. The summer periodical pools are at lower reaches of the Dyje River very rare. In this sort of pools live e. g. Triops cancriformis, Branchipus...
ZÁPORNÉ IONTY V OBYTNÉM PROSTŘEDÍ
Ions and their contribution for living space
Jaroslav Svoboda
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 189-198 | DOI: 10.11118/actaun200856020189
This contribution is dealing with more than up to date topic. Nowadays more than one third of human population suffers from some form of allergies - dust, pollen or mites. The air we breathe the whole day does not come from outside, on the contrary it comes from closed rooms used for living. the important part of air are the negative ions which are neccessary for life. Therefore, the optimal level of ions should be maintained. Living enviroment which does not contain enough negative ions causes various diseases, such as allergies, asthma, headache, tiredness and depressions.Increased concentration of negative ions inside a house is the basic prevention...
VÝSKYT PARAZITICKÉ HOUBY CRYPTOCLINE TAXICOLA NA JEHLICÍCH TISU - SYMPTOMY, MORFOLOGIE, ROZŠÍŘENÍ
Occurence of Cryptocline taxicola (All.) Petr. on needles of Taxus spp. - symptoms and morphological features
Ivana Šafránková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 199-202 | DOI: 10.11118/actaun200856020199
In comparison with other European trees species Taxus spp. is not often prone to phytopathological problems. The fungus Cryptocline taxicola (All.) Petr was found on needles of cultivars of Yet (T. baccata L., T. cuspidata S. & Z., Taxus × media Rehd.) in Brno in the summer and the autumn of 2007. The article attemps to describe the disease symptoms and morphological features. Infected needles and whole shoots turn brown. Fruiting bodies were observed on upper and lower surfaces necrotic and chlorotic needles. Acervuli of the fungus were black, subepidermal, ∅ 160-370 × 90-145 μm, surrounded by...
Vliv koncové polohy demontovatelného nábytkového kování na odolnost vůči ohybovému momentu u korpusového nábytku
The end distance effect of knock-down furniture fasteners on bending moment resistance of corner joints
Milan Šimek, Eva Haviarová, Carl Eckelman
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 203-210 | DOI: 10.11118/actaun200856020203
The goal of this paper is to investigate the effect of the end distance of cam lock fasteners on the bending moment resistance of knock-down corner joints. The preliminary study of knock-down furniture assembly plans was done in order to discover the manufacturers' fastener typical usage in case construction. Laminated particleboard, cam fasteners and wooden dowels were used for specimen construction. L-shaped joint specimens 760 mm in length were tested by pressing the joint members together - also called a compression test in the angle plane. The study results showed that cam fasteners with end distance of 60 mm from the member edges perform the best.
VLIV POVRCHOVÉ ÚPRAVY NA RYCHLOST ŠÍŘENÍ ULTRAZVUKU VE DŘEVĚ
Influence of the surface finishing on ultrasound velocity in wood
Tomáš Špaček, Mária Kotlínová, Michal Kloiber, Josef Polášek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 211-216 | DOI: 10.11118/actaun200856020211
Non-destructive diagnostic methods are very useful for monumental buildings. This paper deals with one of these technique, namely with ultrasound testing and influence of surface finishing on ultrasound velocity measured by means of device the Arborsonic Decay Detector. Surface finishing (Primalex - thick synthetic film of the surface finishing, Luxol - Extra - thin synthetic film of the surface finishing and Impranal Profi SL - thick acryl film the surface finishing) were selected and tested in this research. The transmittion time was measured and velocity was converted from it. This was compared before and after application of surface finishing.
Validace simulačního modelu pro brambory
Validation of potato simulation model
Milada Šťastná, Petra Oppeltová, Jana Dufková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 217-226 | DOI: 10.11118/actaun200856020217
Aim of the study focused on evaluation of SUBSTOR - Potato model and its utilization in potato grows management in the Czech Republic. The experimental field used for the model evaluation was located in Žabčice - South Moravia region with altitudes of 179 meters above the sea level. Tuber yield served as reference for the model evaluation. Nine years experimental data set (1994-2002) was used for the model validation. Rosara cultivar represented very early growing potato, Karin cultivar depicted early growing potato (Solanum tuberosum L.) in the experiment. Comparison between observed and simulated tuber yields presented the evaluation process...
VLIV RŮZNÝCH ZPŮSOBŮ PĚSTOVÁNÍ KUKUŘICE NA VÝSKYT ZAVÍJEČE KUKUŘIČNÉHO (OSTRINIA NUBILALIS, HÜBNER)
The influence of various cultivating technologies of maize on the occurrence of Ostrinia nubilalis, Hübner
Petr Štěpánek, Miloslava Veselá, František Muška
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 227-234 | DOI: 10.11118/actaun200856020227
The aim of this study was to investigate the influence of cultivation, sowing, fertilisation techniques and chosen hybrids of maize upon infestation Ostrinia nubilalis. The experiment was performed in the maize monocultures in pilot plant test of Agrodružstvo Klas Křičeň (Pardubice district, Pardubice county) between 2001-2003. An increase in the number and the harmfulness of Ostrinia nubilalis were observed in the vegetation. This significant spread is the result of the monocultural way of growing the crop with the individual treatments being conducted on the same plots (damaged plant of year 2001 - 37 %, 2002 - 44 %, 2003 - 66 %). The...
Kvalita musculus longissimus pars thoracis v těžších kategoriích býků českého strakatého a montbeliárdského plemene
The quality of Musculus longissimus pars thoracis in heavier category of Czech Fleckvieh and Montbeliard bulls
Jan Šubrt, Gustav Chládek, Radek Filipčík
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 235-244 | DOI: 10.11118/actaun200856020235
Non-significant differences were established when the nutritional and technological beef quality of Czech Fleckvieh and Montbeliard and their reaction to the end of feeding at the different age and different carcass growth intensity were studied.Bulls were fattened until average weight of 656 kg. Montbeliard beef quality evaluation shown non-significant difference of higher intramuscular fat proportions and energy value compared to Czech Fleckvieh. Technological quality evaluation only indicated the tendency to lighter meat, lower water retention and lower level of hydroxyproline. Slaughter age rising in both breeds (the boundary vas 570 days)...
Vplyv dĺžky skladovania na obsah lykopénu v plodoch rajčiaka jedlého (Lycopersicon esculentum L.)
The effect of the lenght of storage on the amount of lycopene in the fruits of tomato (Lycopersicon esculentum L.)
Anton Uher
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 245-250 | DOI: 10.11118/actaun200856020245
We focused on tomatoes for industrial processing due to its economical importance for its lycopene content. The objective of our research is to find the variation of lycopene content in tomato fruits depending upon the length of after harvest storage and thermic treatment, which is inevitable when being industrialy processed. From the point of view of nutritional qualities the most relevant contentual substance of tomatos are carotenoids, included lycopene.At average for tree following experimental years we learnt significant differences regarding the content of lycopene and the length of storage of tomato fruits. Immediately after the harvest...
Vliv ošetření chlormequatem a paclobutrazolem na růst a kvetení světlice barvířské (Carthamus tinctorius L.)
The effect of chlormequat and paclobutrazol treatment on safflower (Carthamus tinctorius L.) growth and flowering
Jiří Uher
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 251-254 | DOI: 10.11118/actaun200856020251
The responses of six safflower varieties (Carthamus tinctorius L.) to chlormequat and paclobutrazol treatments were monitored. Although a chlormequat application did not bring about any significant differences in flowering or morphological traits, plants treated with paclobutrazol were shorter and had a higher number of flower heads. However, contrary to expectations, treatment by paclobutrazol also made flowering earlier. This does not appear to support the idea that safflower is a typical long-day plant, progressing to floral induction and stem elongation after vernalization in the winter at the leaf-rosette stage).
VLIV PREEMERGENTNĚ APLIKOVANÝCH HERBICIDŮ NA VÝNOS NAŽEK A KVALITU PRODUKCE KMÍNU KOŘENNÉHO (CARUM CARVI L.)
Influence of preemergently applied herbicides on the yield and quality of caraway achenes (Carum carvi L.)
Antonín Vaculík
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 255-266 | DOI: 10.11118/actaun200856020255
Caraway has very low competitive ability against most of weed species. Therefore, it is important to choose a suitable herbicide control, especially at biennial caraway. The experiments with the herbicides applied in caraway were found in pure growth, with variety Kepron (with standard length of vegetative period). The aim of the trials was to find out the differences at achenes yiled and essential oil content after the treatment by the various herbicides, applied preemergently. Also, the selective activity of individual herbicides was tested, including the different doses. The herbicides used in the experiments had enough level of selektivity on the...
DOPADY ZMĚNY KLIMATU NA PRVNÍ VÝSKYT PLÍSNĚ BRAMBOROVÉ (PHYTOPHTHORA INFESTANS (MONT.) DE BARY 1876)
Impacts of climate change on the first occurrence of the Light blight (Phytophthora infestans (Mont.) de Bary 1876)
Zdeněk Žalud, M. Trnka, M. Dubrovský, E. Kocmánková
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 267-276 | DOI: 10.11118/actaun200856020267
The increase in the infestation pressure of various pathogens will be one the most important factors limiting the crop production under the future climate conditions. Weather driven NegFry model has been used for estimating future Phytophthora infestans occurrence at four experimental potato stations of the State Institute for Agriculture Supervision and Testing. Both the infestation dates of Phytophthora infestans occurrence and the shape of the critical number curve were analyzed using observed weather data as well as datasets constructed according to four climate change scenarios that were based on two global circulation models. The...
Použití metod molekulární genetiky pro identifikaci dřevních hub v dřevěných konstrukcích
Application of molecular genetic methods for identification of wood-decaying fungi in wood constructions
Elena Bobeková, Michal Tomšovský, Petr Horáček
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 281-284 | DOI: 10.11118/actaun200856020281
The aim of the paper is to evaluate the utilization of molecular biology methods for detection of wood decaying fungi directly from decomposed wood using a commercial DNA extraction kit developed for soil substrates (PowerSoil™ DNA isolation kit). The experiment based on dry rot fungus (Serpula lacrymans) detection from inoculated wooden pieces under laboratory conditions was followed by field detection of wood-decaying fungi from wood structures on building constructions. Fungal DNA was identified using the PCR-based methods including species-specific PCR and sequencing of amplified ITS region of ribosomal DNA.
Roční cyklus zoobentosu Lednických rybníků
Annual zoobenthos development of the ponds Lednické rybníky
Roman Heimlich, Ivo Sukop
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 285-292 | DOI: 10.11118/actaun200856020285
The ponds of Lednice are situated in the area "Lednicko-valtický areál", which is included in the World Heritage List of UNESCO.The aim of this essay was monitoring of seasonal dynamic zoobenthos development in the ponds Lednické rybníky over the years 2006-2007 and performance of qualitative and quantitative analysis of taken samples. The research was realized on ponds Nesyt, Hlohovecký, Prostřední, Mlýnský and Zámecký. Samples of macrozoobenthos were taken in monthly intervals. Qualitative studies of samples have shown 112 taxa of bentic macroinvertebrates in the localities mentioned above, 17 taxa were determined for the first time. Total number...
PREZENTACE DIGITÁLNÍCH LESNICKÝCH MAP POMOCÍ WEBOVÝCH MAPOVÝCH SLUŽEB
Digital forestry maps representation using web mapping services
Martin Klimánek, Miloš Cibulka
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 293-298 | DOI: 10.11118/actaun200856020293
The Web Mapping Services (WMS) are very useful means for presentation of digital geospatial data in the Internet environment. Typical Open Source example of these services is development environment MapServer, which was originally developed by the University of Minnesota ForNet project in cooperation with NASA and the Minnesota Department of Natural Resources. MapServer is not a full-featured Geographical Information System (GIS), but provides the core functionality to support a wide variety of web applications. Complex and open information system about forest (and cultural) land is presented in real example of MapServer application with data from...
Předběžné výsledky hodnocení rezistence podnoží pro révu vinnou k chloróze vyvolané vápníkem
Preliminary results of tests of grapevine rootstocks resistance to lime-induced chlorosis
Pavel Pavloušek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 299-302 | DOI: 10.11118/actaun200856020299
Resistance to lime-induced chlorosis is very important characteristic of grapevine rootstocks. Lime-induced chlorosis influence yield and quality of grapes. Evaluation of chlorosis resistance is very important for grape growing and breeding. The aim of this work is provide results of evaluation grapevine rootstocks to chlorosis. High resistance was show in Fercal. From the viewpoint of the resistance to chlorosis, the rootstocks registered in the State Variety Book of the Czech Republic can be ranked from the most resistant to the most sensitive as follows: Craciunel 2 - SO 4 - Kober 125 AA - Kober 5 BB - Teleki 5 C - Amos - LE-K-1.
Vliv teploty na dynamickou viskozitu černého piva
On the influence of temperature on dynamic viscosity of dark beer
Libor Severa, Josef Los
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 303-308 | DOI: 10.11118/actaun200856020303
Temperature dependence of dark beer dynamic viscosity have been evaluated. The beer samples have been tested in the wide range of temperatures (from 2 to 90 °C) by means of rotary viscometer. The dynamic viscoity ranged from 3.91 to 1.01 mPas. Arrhenius equation have been used to model experimental data with satisfying match R2 = 0.993. Heat gradient in the gap of measuring cell have been described and evaluated.
SENZORICKÉ HODNOCENÍ AUTENTIČNOSTI VÍN
Sensorial evaluation genuineness of wine
Ivo Tomášek
Acta Univ. Agric. Silvic. Mendelianae Brun. 2008, 56(2), 309-318 | DOI: 10.11118/actaun200856020309
The qualitative indicators of wine are also sensoric properties besides analytic properties.The specimens were evaluated immediately after their stabilization. Of course, by the time the sensoric properties are changing and can influence later evaluation, even customers in their desicion for repeating purchase. Specialists evaluated specimen of white wines such as: rhine Riesling, Sauvignon blanc and gruner Veltliner from three locations of Znojmo winery region. All specimen weren't fermented to dry and they weren't procesed the same technology, in spite of this, the speciments were evaluated objectively as possilble.The common parameters of...