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Results 991 to 1020 of 1934:

Balancing the use of maize residues for soil amendment and forageOriginal Paper

S.Z. Tian, Z. Liu, B.W. Wang, Y. Wang, Z.J. Li, R. Lal, T.Y. Ning

Plant Soil Environ., 2016, 62(11):490-496 | DOI: 10.17221/470/2016-PSE

Balancing the use of maize (Zea mays L.) residues for soil amendment and forage is an important strategy for agricultural sustainability. Therefore, the study assessed the impacts of four proportions of maize residues to soil retention (S) and forage (F) on soil total organic carbon (TOC); total nitrogen (TN); carbon/nitrogen ratio (C/N); grain yield, economic benefits and nutritional contents of removed residues. The concentrations of TOC and TN increased when more residue returned, while the C/N ratios were S100 + F0 > S34 + F66 > S66 + F34. Also, crude protein, crude fat, and crude starch in the removed residues were F34 > F66 > F100, while the crude fiber and ash contents exhibited the opposite trend. The crop yield improved with residue retention increased, but there were no differences on the economic benefits of the four residue-use systems. The S34 + F66 system maintained a TOC ranging from 11.51 to 13.37 g/kg, a TN from 1.12 to 1.16 g/kg, 92.93% of the annual yields of the S100 + F0 system, and 6.2 t/ha/year of forage. Therefore, the S34 + F66 system can balance the use of maize residues for soil amendments and forage to sustainably develop a household crop-livestock system.

Closure of a recurrent bladder rupture in a calf by means of a peritoneal flap: a case reportCase Report

M. Gandini, G. Giusto, F. Comino, M. Casalone, C. Bellino

Vet Med - Czech, 2016, 61(4):229-232 | DOI: 10.17221/8825-VETMED

An 11-month old, Piedmontese bullock was admitted to the Department of Veterinary Science, University of Turin, for urolithiasis and suspected uroperitoneum owing to urinary bladder rupture. A first episode of uroperitoneum had been treated surgically one week previously. On admission, the animal underwent physical and haematological examination, followed by transabdominal ultrasonography and biochemical screening. Clinical and laboratory findings confirmed the recurrence of uroperitoneum, possibly secondary to the previously failed surgical approach. During surgery, urine leakage from the previously treated tear was clearly visible, together with a large necrotic area surrounding the tear. To close the defect, we created a peritoneal flap. For tissue approximation we used a continuous barbed suture material, which obviated the need for knots to secure the leading and terminal ends of the suture. Postoperative monitoring included transabdominal ultrasonography and biochemical profile tests, performed at 10 and 30 days after surgery. Two months after discharge, a telephone follow-up confirmed the positive outcome of the procedure. The creation of a peritoneal flap allows for effective sealing of a bladder tear with necrotic edges. The use of barbed suture greatly simplifies the entire procedure.

Road network optimization using heuristic and linear programming

M. R. Ghaffariyan, K. Stampfer, J. sessions, T. Durston, M. Kuehmaier, Ch. Kanzian

J. For. Sci., 2010, 56(3):137-145 | DOI: 10.17221/12/2009-JFS

To minimize the cost of logging, it is necessary to optimize the road density. The aim of this study was to determine optimal road spacing (ORS) in Northern Austria. The stepwise regression method was used in modelling. The production rate of tower yarder was 10.4 m3/PSHo (Productive system hours) and cost of 19.71 €.m-3. ORS was studied by calculating road construction cost, installation cost and yarding cost per m3 for different road spacing. The minimum total cost occurred at 39.15 €.m-3 and ORS would be 474 m assuming uphill and downhill yarding. The optimal road density and yarding distance are 21.1 m.ha-1 and 90 m, respectively. A sample logging area was used to plan different roads and, using network analysis, the best solution was found based on a modified shortest path algorithm. The network analysis results were very different from the optimal road spacing results that assumed roads and logging corridors could be located anywhere in the planning area at a constant cost. Mixed integer programming was also used to get a real optimal solution.

Soil phosphorus and potassium availability in long-term field experiments with organic and mineral fertilizationOriginal Paper

M. Káš, G. Mühlbachová, H. Kusá, M. Pechová

Plant Soil Environ., 2016, 62(12):558-565 | DOI: 10.17221/534/2016-PSE

The effect of organic, mineral and combined organic and mineral fertilization of soils on the winter wheat yields and nutrient contents in soils was evaluated in long-term field experiments. Two sites with different soil characteristics were evaluated - Lukavec u Pacova (cambisol) and Ivanovice na Hané (degraded chernozem). The type of fertilization influenced wheat yields. Nutrient uptake by winter wheat was higher under nitrogen (N) fertilization, which resulted in a negative balance of phosphorus (P) and potassium (K) and to a decrease of nutrient contents in the more fertile soils at Ivanovice na Hané. Two soil tests (Mehlich 3 method and NH4-acetate method) were used to determine P and K availability. The mineral nitrogen fertilization negatively and significantly affected NH4-acetate extractable concentrations of nutrients in the soils and these were lower in comparison with concentrations of P and K determined by Mehlich 3 method. Relative availability of P in alkaline soils from Ivanovice treated with mineral N increased while the soil pH decreased.

Biological control of Sclerotinia sclerotiorum (Lib.) de Bary, the causal agent of white mould disease in red cabbage, by some bacteriaOriginal Paper

Elif Tozlu, Parisa Mohammadi, Merve Senol Kotan, Hayrunnisa Nadaroglu, Recep Kotan

Plant Protect. Sci., 2016, 52(3):188-198 | DOI: 10.17221/96/2015-PPS

Sclerotinia sclerotiorum (Lib.) de Bary is the causal agent of white mould, stem, and fruit rot diseases on a wide variety of crop plants including cabbage (Brassica oleracea L.) in field and storage. Control of this pathogen by using commercial disease management methods is extremely difficult. Therefore, this study was performed to develop an alternative and effective control method for the diseases by using biocontrol bacteria - Bacillus subtilis (strains TV-6F, TV-17C, TV-12H, BA-140 and EK-7), Bacillus megaterium (strains TV-103B), and Bacillus pumilus (strains RK-103) on Petri plate assays and on red cabbage in pot assays. On Petri plates, all of the tested bacterial strains showed the zone of inhibition against the pathogen fungus ranging 15.00-26.50 mm. Their percentage inhibition rates and lesion length ranged 42.64-79.41% and 0.02-4.50 cm in pot assays, respectively. Consequently, our results indicated that especially B. subtilis strains TV-17C, TV-12H, and TV-6F can be used as bio control agent of S. sclerotiorum in red cabbage production.

Changes of risky element concentrations under organic and mineral fertilizationOriginal Paper

L. Hlisnikovský, G. Mühlbachová, E. Kunzová, M. Hejcman, M. Pechová

Plant Soil Environ., 2016, 62(8):355-360 | DOI: 10.17221/164/2016-PSE

The 28-day incubation experiment was carried out to evaluate the impact of the application of digestate (Dig); digestate with straw (DigSt); pig slurry (Slu) and mineral fertilizer (NPK) on Cd, Cu, Mn and Zn availability, on K2SO4-extractable carbon content and on the soil pH value in long-term contaminated soil. At days three and seven of the experiment, the 0.01 mol/L CaCl2-extractable fractions of Cd, Zn and Mn significantly decreased under organic treatments (Dig, DigSt and Slu) with the most pronounced effect under Dig treatment. The NPK treatment caused the increase of risky element concentrations since day 21 of incubation which was accompanied with pH decrease. The contents of 0.5 mol/L K2SO4-extractable carbon were the highest at day 3 and 7 of incubation in organic treatments. The significant correlations between 0.5 mol/L K2SO4-extractable carbon and CaCl2-extractable metal concentrations showed a close relationship between fresh organic matter added in organic fertilizers and risky element availability, suggesting that newly added labile organic matter can form temporary ligands with risky elements and release them later following its decomposition.

Eggshell structure, measurements, and quality-affecting factors in laying hens: a reviewReview

M. Ketta, E. Tůmová

Czech J. Anim. Sci., 2016, 61(7):299-309 | DOI: 10.17221/46/2015-CJAS

Eggshell quality is one of the most significant factors affecting poultry industry; it economically influences egg production and hatchability. Eggshell consists of shell membranes and the true shell that includes mammillary layer, palisade layer, and cuticle. Measurements of eggshell quality include eggshell weight, shell percentage, breaking strength, thickness, and density. Mainly eggshell thickness and strength are affected by the time of egg components passage through the shell gland (uterus), eggshell ultra-structure (deposition of major units), and micro-structure (crystals size and orientation). Shell quality is affected by several internal and external factors. Major factors determining the quality or structure of eggshell are oviposition time, age, genotype, and housing system. Eggshell quality can be improved through optimization of genotype, housing system, and mineral nutrition.

The first contribution to the fauna of psocids (Insecta: Psocoptera) in forests in the Drahanská vrchovina Hills (Czech Republic)Original Paper

D. Mazáč

J. For. Sci., 2016, 62(5):211-222 | DOI: 10.17221/97/2015-JFS

Taxocenosis of psocids (Psocoptera) was studied in the territory of the Drahanská vrchovina Hills in the Czech Republic. Representative research plots were selected in forest ecosystems with natural species composition and spatial structure (small-scale strictly protected areas) as well as in forest ecosystems with altered tree species composition and spatial structure. Research was conducted in three altitudinal vegetation zones (AVZ): in 2nd communities of Fagi-querceta s. lat. (beech-oak forests), 3rd Querci-fageta s. lat. (oak-beech forests) and 4th Fageta abietis (beech forests with fir). Research plots are situated at altitudes ranging between 275 and 540 m a.s.l. In the 2013 growing season, totally 3,474 imagoes and 2,532 nymphs of 32 psocid species were collected. Of those, 748 imagoes of 25 psocid species were collected in Fagi-querceta. The occurrence of Caecilius burmeisteri, Caecilius flavidus and Graphopsocus cruciatus was eudominant. 2,194 imagoes of 23 psocid species were found in Querci-fageta, eudominant were there Caecilius flavidus and Caecilius burmeisteri. 532 imagoes of 18 psocid species were found in Fageta abietis, eudominant were there: Caecilius flavidus, Peripsocus subfasciatus and Caecilius burmeisteri. In respect to the species composition, 3rd AVZ and 4th AVZ are similar to each other while 2nd AVZ is less similar.

Response of organic nitrogen in Black Soil to long-term different fertilization and tillage practices in Northeast ChinaOriginal Paper

Li YAN, Hui LI, Jinjing ZHANG, Zhidan ZHANG, Ping ZHU, Qiang GAO, Wenxi LU

Soil & Water Res., 2016, 11(2):124-130 | DOI: 10.17221/32/2015-SWR

A long-term (18 years) effect of different fertilization and tillage management practices- fallowing treatment (no fertilizer, no cultivation); CK (no fertilizer, cultivation); N (nitrogen fertilizer); NP (nitrogen and phosphorus fertilizer); NK (nitrogen and potassium fertilizer); PK (phosphorus and potassium fertilizer); NPK (nitrogen, phosphorus, and potassium fertilizer); M1NPK (chemical fertilizer plus manure); 1.5M1NPK (1.5 times M1NPK); NPKS (mineral fertilizer plus straw); Rot (3-year crop rotation of maize-maize-soybean with M1NPK), and M2NPK (2 times manure plus mineral fertilizer) - on the content of total nitrogen and organic forms of nitrogen and the nitrogen content in different particle-size fractions were studied in topsoil (0-20 cm) in Black Soil of NE China by using the methods of Bremner. The results showed that the combined application of organic and mineral fertilizers could significantly increase the contents and proportions of total nitrogen and organic nitrogen forms in soil. Comparing to CK treatment, the content of total nitrogen and hydrolyzable nitrogen increased in the fallow and organic materials treatments. Compared with M1NPK treatment, rotation was more beneficial to increasing organic nitrogen content, especially remarkably increasing amino acid nitrogen. The nitrogen response of sand, silt, and clay was most sensitive on manure; the effects of fallow and manure treatments on sand were notable, the nitrogen content in sand with NPKS increased by 40.86% compared with CK treatment. Our results imply that fallow/rotation managements, and manure/straw application can improve soil fertility.

Morphologic evaluation of the gills as a tool in the diagnostics of pathological conditions in fish and pollution in the aquatic environment: a reviewReview

E. Strzyzewska, J. Szarek, I. Babinska

Vet Med - Czech, 2016, 61(3):123-132 | DOI: 10.17221/8763-VETMED

The after-effect of chosen Fabaceae forecrops on the yield of grain and protein in winter triticale (Triticosecale sp. Wittmack ex A. Camus 1927) fertilized with mineral nitrogenOriginal Paper

J. Prusinski, M. Borowska, E. Kaszkowiak, G. Olszak

Plant Soil Environ., 2016, 62(12):571-576 | DOI: 10.17221/463/2016-PSE

Two-way field experiment was carried out in a split-plot design in 4 growing seasons at the Experimental Station of the Bydgoszcz University of Science and Technology in Mochełek (Poland). The forecrops for winter triticale cv. Tulus were lupins: yellow, blue and white, field pea and spring barley. Nitrogen (N) fertilization in triticale after harvesting forecrops was: 0-60-120-180 kg N per ha. Average long-term yields of grain and protein in triticale after leguminous forecrops were statistically similar, by 0.84 t/ha and 86 kg/ha higher than after spring barley. On plots without mineral N fertilization, by over 1.5 t/ha more grain was obtained after leguminous forecrops, and by 142 kg/ha more protein than on the plot after spring barley. However, the rate of 180 kg N/ha guaranteed obtaining a significantly highest mean protein yield in triticale. The applied mineral N fertilization at rates from 60 to 180 kg N/ha did not significantly vary the average yield of winter triticale. Mineral nitrogen (Nmin) content in the layer 0-60 cm after harvesting the leguminous forecrop without mineral N fertilization was by 25.5% higher than after harvesting spring barley fertilized with a rate of 60 kg N per ha.

Monitoring infestations of oak forests by Tortrix viridana (Lepidoptera: Tortricidae) using remote sensingOriginal Paper

Leila Gooshbor, Mahtab Pir Bavaghar, Jamil Amanollahi, Hamed Ghobari

Plant Protect. Sci., 2016, 52(4):270-276 | DOI: 10.17221/185/2015-PPS

We tested the suitability of Landsat images to track defoliation by insect herbivory with focus on the oak leaf roller, Tortrix viridana (Lep.: Tortricidae). Landsat images from the period before (2002) and after the T. viridana infestation (2007, 2014) were compared in oak forests of Zagros in western Iran. The Normalised Difference Vegetation Index (NDVI) was calculated for the test area from Landsat 5, 7, and 8 images. Because the red and near-infrared spectral bands of Landsat 8 OLI sensors are different from the other two, a model for the calibration of Landsat OLI NDVI was developed. The proposed model with a correlation coefficient of 0.928 and root mean square error of 0.05 turned out to be applicable and the NDVI decreased significantly during the observation period. Taking into account the protection status of the area and small fluctuations in temperature, the decrease in NDVI could be attributed to T. viridana damage.

CO2 efflux and microbial activities in undisturbed soil columns in different nitrogen managementOriginal Paper

E. Molnár, T. Szili-Kovács, I. Villányi, M. Knáb, Á. Bálint, K. Kristóf, G. Heltai

Plant Soil Environ., 2016, 62(9):402-407 | DOI: 10.17221/216/2016-PSE

The surface carbon dioxide (CO2) fluxes together with the soil microbial biomass and activity in undisturbed soil columns were studied in three growing seasons. Soil columns had six treatments: (1) control without plants; (2) mineral fertilized without plants; (3) no fertilizer and maize plants; (4) mineral fertilized and maize plants; (5) manure and maize plants; (6) mineral fertilized plus manure and maize plants. Soil microbial biomass was measured by substrate-induced respiration (SIR) and microbial activity as fluorescein-diacetate hydrolysing activity (FDA). Treatments had a significant effect (P < 0.001) on CO2 fluxes, SIR and FDA. The presence of maize increased CO2 efflux, SIR and FDA compared to unplanted column. Fertilizer + manure treatment resulted in the greatest plant biomass and the greatest CO2 efflux. Significant correlation (r = 0.680; r = 0.586 in two consecutive years) between SIR and FDA was found.

Shape memory compression anastomosis clips in gastrointestinal surgery in dogsOriginal Paper

P. Holak, Z. Lekston

Vet Med - Czech, 2016, 61(9):524-527 | DOI: 10.17221/1/2016-VETMED

This paper describes clinical experiences with the use of shape memory nickel-titanium (NiTi) clips in gastrointestinal surgery in dogs. Side-to-side small bowel anastomosis was performed in eight dogs where intestinal continuity had to be restored after bowel resection. Billroth's operation I was performed in one case. Compression anastomosis clips with two-way shape memory were used in all surgical procedures. Intestinal and gastrointestinal anastomoses involving shape memory clips were effective in all patients. Anastomotic leaks were not observed, and all clips were expelled 5-7 days after surgery. The outcomes of surgical procedures performed on canine patients with the use of shape memory NiTi clips indicate that sutureless compression anastomosis is a safe, effective and simple method of restoring gastrointestinal continuity, which can be widely applied in veterinary practice.

Genome-wide analysis of CpG islands in some livestock genomes and their relationship with genomic featuresOriginal Paper

A. Barazandeh, M.R. Mohammadabadi, M. Ghaderi-Zefrehei, H. Nezamabadi-pour

Czech J. Anim. Sci., 2016, 61(11):487-495 | DOI: 10.17221/78/2015-CJAS

CpG islands (CGIs) are an important group of CpG dinucleotides in the guanine- and cytosine-rich regions as they harbour functionally relevant epigenetic loci for whole genome studies. As a matter of fact, since there has not been a formal comparative analysis of CGIs in domestic even-toed ungulate genomes, this study was performed to serve this comparison. The Hidden Markov Model was used to detect CGIs in the genomes. The results indicated that the CGIs number and CGI densities had scant variations across genomes. The goat genome had the highest number of CGIs (99 070), whereas the alpaca genome had the highest CGI density (43.39 CGIs/Mb). Significant positive correlations were observed among CGI densities with chromosome pair number, observed CpG/expected CpG, recombination rate, and gene density. When the size of chromosomes increased, the CGI densities decreased and a trend of higher CGI densities in the telomeric regions was observed. Only 10.96% of CGIs were methylated underscoring this postulation that the majority of CGIs remains to be unmethylated. The highest amount of the methylated CGIs was observed in the introns, intergenic, and coding (CDS) regions and the lowest amount of the methylated CGIs was observed in the promoter regions, implying that the DNA methylation of CGIs may control gene expression at the genome level. Detected differences between even-toed ungulate and other vertebrate genomes showed that CGI densities varied greatly among the genomes. These findings would contribute to better understanding the even-toed ungulate (epi) genomes, the role of CGIs in epigenomic functions and molecular evolution.

Intra-annual patterns of weather and daily radial growth changes of Norway spruce and their relationship in the Western Carpathian mountain region over a period of 2008-2012Original Paper

A. Leštianska, K. Merganičová, J. Merganič, K. Střelcová

J. For. Sci., 2015, 61(7):315-324 | DOI: 10.17221/24/2015-JFS

The contribution presents the results of a 5-year (2008-2012) dendroecological research in a Norway spruce (Picea abies [L.] Karst.) clone forest (Northern Slovakia). Due to different climatic and soil moisture conditions in the monitored years, different seasonal courses of stem increment formation were observed using band dendrometers with continuous data recording. The lack of precipitation affected growth processes mainly during the growth culmination and at the end of summer. The multiple regression analysis of the impact of individual factors on stem circumference changes on the basis of their partial correlation coefficients revealed that the individual environmental characteristics influenced daily stem radial changes with time lags of one to ten days. The results of the analysis of variance showed that the stem radial reactions to climatic and soil moisture factors were not significantly different between the clones.

Winter wheat: results of long-term fertilizer experiment in Prague-Ruzyně over the last 60 yearsOriginal Paper

L. Hlisnikovský, E. Kunzová, L. Menšík

Plant Soil Environ., 2016, 62(3):105-113 | DOI: 10.17221/746/2015-PSE

The study evaluates how sixty years of application of organic manures and mineral fertilizers (ten fertilizer treatments altogether), planting of cultivars with different length of stem (long- and short-stem cultivars) and preceding crops (potatoes and alfalfa) affected grain and straw yields of winter wheat in the Prague-Ruzyně long-term fertilizer experiment (RFE). Fertilizer treatments did not affect grain yield during the first ten years of the RFE experiment (1959-1968), but influenced straw yield. The grain yield ranged from 5.08 (control) to 5.43 (farmyard manure) t/ha, straw yield varied from 6.02 t/ha (control) to 8.31 t/ha (poultry slurry (PS) + N4P2K2). In the last ten years of the RFE experiment (2004-2013) grain yield ranged from 7.01 t/ha (control) to 8.88 t/ha (stale + N4P2K2), while straw yield decreased and varied from 3.12 (control) to 6.21 t/ha (PS + N4P2K2). Comparing the potatoes and alfalfa as preceding crops, the grain yield was 0.5 t/ha higher after alfalfa, but straw yield was 1.3 t/ha higher after potatoes. Introduction of short-stem cultivars increased average grain yield about 2 t/ha and decreased average straw yield about 0.85 t/ha.

Development of a seroprevalence map for Mycoplasma gallisepticum in broilers and its application to broilers from Comunidad Valenciana (Spain) over the course of two years (2009-2010)Original Paper

C. Garcia, J.M. Soriano, P. Catala-Gregori

Vet Med - Czech, 2016, 61(3):136-140 | DOI: 10.17221/8764-VETMED

The aim of this study was to design and implement a Seroprevalence Map based on Business Intelligence for Mycoplasma gallisepticum (M. gallisepticum) in broilers in Comunidad Valenciana (Spain). To obtain the serological data we analysed 7363 samples from broiler farms over 30 days of age over the course of two years (3813 and 3550 samples in 2009 and 2010, respectively, from 189 and 193 broiler farms in 2009 and 2010, respectively). Data were represented on a map of Comunidad Valenciana to include geographical information of flock location and to facilitate the monitoring. Only one region presented with average ELISA titre values of over 500 in the 2009 period, indicating previous contact with M. gallisepticum in broiler flocks. None of the other regions showed any pressure of infection, indicating a low seroprevalence for M. gallisepticum. In addition, data from this study represent a novel tool for easy monitoring of the serological response that incorporates geographical information.

Response of selected winter wheat cultivars to inoculation with different Mycosphaerella graminicola isolatesOriginal Paper

Václav ŠÍP, Jana CHRPOVÁ, Jana PALICOVÁ

Czech J. Genet. Plant Breed., 2015, 51(3):86-95 | DOI: 10.17221/44/2015-CJGPB

Five winter wheat cultivars, differing in resistance to Septoria tritici blotch (STB), were spray inoculated under field conditions for two years and at two locations with nine Mycosphaerella graminicola isolates and a mixture of isolates that were obtained from different regions of the Czech Republic. Main aims of this study were (i) to compare isolate, host cultivar and environmental effects on five traits indicative of STB severity and (ii) to analyse pathogen aggressiveness and host-pathogen relations for improving evaluation of cultivar resistance. ANOVA showed in all traits, except the reduction in 1000 grain weight, significant isolate effects. However, the effects of isolate and genotype by isolate interactions were much lower (2.3-4%) than cultivar (19.1-53.7%) and environmental (11.9-58.6%) effects. Cultivar resistance to the disease limited much the loss in grain weight per spike to a halve, from 34.7% in the susceptible Bakfis to 17.3% in the resistant Arina. Visual scoring of symptoms in the middle and at the end of disease development (performed on the 1-9 scale), reflecting the disease progress and infected leaf area, showed the highest cultivar effect (54%) and could be recommended for evaluation of cultivar resistance in breeding practice. All examined traits were significantly interrelated, but significant differences between all the five cultivars were only detected after examination of the % coverage of flag leaves with lesions bearing pycnidia. Resistance in the cultivar Arina was detected by all isolates and the isolate mixture. In spite of significant differences in classification of resistances in the cultivars Bohemia and Mulan after inoculation with one isolate (1081), specific interactions between cultivars and isolates collected in this Central European region are rare. The study leads to a conclusion that investigation into stability of STB resistance across a wide range of environments is more valuable for breeding purposes than the study of cultivar response to different isolates. Combination of important isolate properties in a mixture of isolates is stressed as well.

Silvicultural potential of northern red oak and its regeneration - ReviewReview

S. Miltner, I. Kupka

J. For. Sci., 2016, 62(4):145-152 | DOI: 10.17221/115/2015-JFS

Northern red oak (Quercus rubra Linnaeus) is a promising species which could help to mitigate the sanitary problems. Northern red oak is also a commercial species and offers many environmental services. Northern red oak prefers rather dry acidic sites commonly found in Bohemia. The literature confirms that the species is quite fertile but acorn production is highly variable. Northern red oak seedlings develop a long tap root during their first year, which enhances their survival and performance. Different silvicultural systems are proposed and pros and cons are discussed in this review including their influences on forest floor and soil.

INDEX OF VOLUME 62Index

editors

J. For. Sci., 2016, 62(12):I-V | DOI: 10.17221/9380-JFS

First record of Dendroctonus micans (Kugelann, 1794) on non-native spruces in Slovakia - short communicationShort Communication

Jozef VAKULA, Milan ZÚBRIK, Juraj GALKO, Andrej GUBKA, Andrej KUNCA, Ján PAVLÍK, Christo NIKOLOV

Plant Protect. Sci., 2016, 52(4):277-282 | DOI: 10.17221/60/2016-PPS

In 2015, we recorded the first attack of the great spruce bark beetle, Dendroctonus micans (Kugelann) (Coleoptera: Curculionidae, Scolytinae) on non-native Picea orientalis (L.) and Picea pungens (Engelmann) in Slovakia. To our knowledge, the occurrence of D. micans on P. orientalis in Central Europe has not been described yet. We found that D. micans preferred P. orientalis over P. pungens and other coniferous trees in urban areas. In laboratory conditions, 352 adults of D. micans emerged and only 1 predator, Rhizophagus grandis (Gyllenhal) (Coleoptera: Monotomidae), was recorded. D. micans has a potential to become a serious pest of P. orientalis and P. pungens in urban, and in air-polluted areas.

15N isotope tracing of nitrogen runoff loss on red soil sloping uplands under simulated rainfall conditionsOriginal Paper

H.J. Zheng, J.C. Zuo, L.Y. Wang, Y.J. Li, K.T. Liao

Plant Soil Environ., 2016, 62(9):416-421 | DOI: 10.17221/246/2016-PSE

Stable isotope 15N tracer technique was used in combination with artificial rainfall simulation to study the influence of interflow and surface-flow on nitrogen (N) migration loss of soil-plant systems on typical red soil sloping uplands. This study also investigated the utilization efficiency of fertilizer N during different peanut plant growth stages. The results indicated that soil N loss was predominantly via interflow and erosive sediment. Fertilizer N loss during the initial growth stage was mainly through surface runoff, while that occurred as interflow increased from less than 5% to around 16% during the middle and late growth stages. The loss of fertilizer N through surface runoff, erosive sediment and interflow accounted for over 18% of the total N application. The utilization rate of fertilizer N by peanut plants was around 45% through its life cycle, and that 70% of N absorbed by this plant derived from the soil. This highlighted the importance of adopting effective methods to reduce nutrient loss through interflow and surface-flow, the need to increase the utilization rate of fertilizers, and the importance to maintain soil fertility at a relatively high level.

In vitro fermentation pattern in the large intestine of hybrids between wild boars and domestic pigs - a preliminary studyOriginal Paper

D. Miśta, B. Króliczewska, E. Pecka-Kiełb, J. Bujok, W. Zawadzki, J. Górecka, J. Piekarska

Czech J. Anim. Sci., 2016, 61(11):506-514 | DOI: 10.17221/7/2016-CJAS

Breeding of hybrids between wild boars and domestic pigs is in the consumer interest because of the need to ensure food security and diversification via widening the genetic basis of animals reared for meat. To expand the knowledge about their nutritional requirements, this study aimed to investigate hindgut fermentation in these animals. Caecal and colon cultures were incubated for 12 h in vitro with or without wheat bran as a supplementary substrate. Short-chain fatty acids, ammonia, methane, and total gas production were determined. The total concentrations of short-chain fatty acids in unincubated caecal and colon samples were 93.1 and 115 mmol/kg, respectively. The short-chain fatty acid profile in fresh hindgut contents was characterized by a high molar proportion of acetate (74.8-75.0 mol%), followed by propionate (18.2-18.5 mol%) and butyrate (5.4-5.5 mol%). The presence of wheat bran lowered acetate and increased butyrate, propionate, and valerate molar proportions. The ammonia level remained low (1.3-2.43 mmol/kg) regardless of the addition of the substrate. The relatively low pH and ammonia concentration in wild boar/pig hybrids may be caused by the low level of crude protein in diet of these animals. The rate of methanogenesis increased during the fermentation simultaneously with an increase in the production of gases after wheat bran addition. Methane production in the caecal and colon samples incubated with the substrate reached 15.6 and 16.1 mmol/kg, respectively. The hindgut fermentation pattern in wild boar/pig hybrids generally resembled that described earlier in domestic pigs, although some observed dissimilarities may be caused by distinct microbial activity.

Causal agents of stone fruit diseases in Slovenia and the potential for diminishing their economic impact - a reviewReview

Ivan Žežlina, Mojca Rot, Milica Kač, Stanislav Trdan

Plant Protect. Sci., 2016, 52(3):149-157 | DOI: 10.17221/58/2015-PPS

In the last twenty years, stone fruit production in Slovenia has considerably decreased. Acreage with peaches and nectarines has been significantly reduced. Orchard renewal has decreased for various reasons; among them, the frequent occurrence of various diseases is the most significant. These diseases make the economic feasibility of stone fruit production difficult if not impossible. This review addresses the most important stone fruit diseases in Slovenia: European stone fruit yellows, sharka, bacterial leaf spot, bacterioses caused by Pseudomonas spp., perennial canker, and Fusicoccum canker. Additionally, this review focuses on the possibilities of reducing the damage caused by these diseases.

Effect of long-term differential application of inorganic fertilizers and manure on soil CO2 emissionsOriginal Paper

H.S. Dhadli, B.S. Brar

Plant Soil Environ., 2016, 62(5):195-201 | DOI: 10.17221/266/2015-PSE

Carbon dioxide (CO2) fluxes from agricultural soils have been considered as one of the important environmental impact issue, due to their role in global warming and also its mitigation by carbon (C) sequestration in soils. Substantial scope of C sequestration with the application of inorganic fertilizers and manures has been reported, but the long-term effects of continuous application need to be critically examined. To study the effect of continuous differential application of NPK fertilizers and farmyard manure (FYM) in maize-wheat cropping system, CO2 fluxes were measured via closed chambers and gas chromatography in a long-term experiment in progress for the past 42 years. The average daily CO2 fluxes differed significantly amongst various treatments and were 55, 26 and 92% higher in NPK, N and NPK + FYM treatments over the control in the maize crop season and 43, 8 and 83% in the wheat crop season. Highly significant correlation of CO2 emissions was found with soil organic carbon and total nitrogen in the maize and the wheat crop seasons. Although, CO2 emissions were higher from long-term inorganic fertilizers and FYM treatments, still they are environmentally sustainable management practices, as they increased soil fertility and crop yields which consequently resulted in higher atmospheric CO2 capture by plants and carbon sequestration in soils.

Long-term evaluation of bicipital tenodesis with T-staple in three dogs: a case reportCase Report

S. Pinna, A. De Giorgi, G. Spinella

Vet Med - Czech, 2016, 61(3):162-168 | DOI: 10.17221/8768-VETMED

The purpose of this report is to describe the T-staple tenodesis of biceps brachii in three client-owned dogs and long-term ultrasonographic follow-ups. The orthopaedic examination revealed grade 2/4 (n = 2) and 3/4 (n = 1) lameness, moderate pain on passive movement and positivity to the tendon biceps test with a complete extension of the elbow during the flexion of the shoulder (Cases 1 and 2). Ultrasound examination was crucial for diagnosis of partial or complete rupture and tenosynovitis of biceps tendon. Surgical tenodesis was carried out with a metal T-staple. One-year ultrasound follow-up was performed, confirming the correct integration of the staple on the bicipital fibres and the absence of macroscopic tendon injury or degenerative disease. The results suggest that the metal T-staple could be a good alternative for bicipital tenodesis in dogs.

Effect of zinc application timing on yield formation by two types of maize cultivarsOriginal Paper

J. Potarzycki, K. Przygocka-Cyna, W. Grzebisz, W. Szczepaniak

Plant Soil Environ., 2015, 61(10):468-474 | DOI: 10.17221/488/2015-PSE

The yield forming response of maize cultivar to zinc (Zn) application depends on its timing. This hypothesis was validated in 2007, 2008, 2009 and 2010 growing seasons. The zinc treatments as the first factor were: NPK; NPK + Zn applied before sowing; NPK + Zn applied to maize at the stage of 4th leaf. The second factor was the maize type: stay-green (modern cultivars) - Paroli, Veritis, Anamur; classical (old cultivars) - Inagua, Kirola. The grain yield of modern cultivars responded the best to zinc applied before sowing, whereas the old ones, when applied to foliage. The yield of the stay-green maize depended upon the number of kernels per row, whereas the classical one on all yield structural components. The zinc management in the modern cultivars should be oriented towards maximization of the number of kernels per row, whereas in the old one on its optimization with the simultaneous kernel weight increase. The positive impact of zinc application before sowing on dry matter translocation from vegetative tissues to growing kernels underlines its practical usefulness, especially in areas with frequent water shortage during maize growth.

Headed Chinese cabbage growth and yield influenced by different manure types in organic farming systemOriginal Paper

E. Laczi, A. Apahidean, E. Luca, A. Dumitraş, P. Boancă

Hort. Sci. (Prague), 2016, 43(1):42-49 | DOI: 10.17221/6/2015-HORTSCI

Chinese cabbage is a less known, cultivated and consumed vegetable species in Transylvania, although previous studies have shown that it can be grown successfully in this area. The main purpose of the present research was to underline the effectiveness of various treatments on Chinese cabbage growth, yield and quality of the final product in organic farming system. The treatments included: different fertilisation types, place of the culture and several hybrids. Results showed that all the studied factors had a high influence on cabbage heads characteristics such as length, diameter, and weight, on the number of leaves and also on yield. The best yields were registered when horse manure was used (between 76.50 and 99.30 t/ha), followed by cattle manure (between 76.80 and 93.75 t/ha). A higher yield of better quality cabbage was obtained in a polyethylene tunnel (89.27 t/ha) compared to the open field culture (77.50 t/ha). Hybrid Super provided the highest yield (92.70 t/ha), followed by hybrid Vitimo (86.09 t/ha).

Influence of agricultural crops adjacent to forest on woody species browsing: Is it advantageous to have a tasty neighbour?Original Paper

J. Kamler, M. Homolka

J. For. Sci., 2016, 62(1):41-46 | DOI: 10.17221/71/2015-JFS

Preference of biotopes and selection of food by wild herbivores are more complicated in a cultural landscape used for agriculture than in natural conditions. Agricultural management significantly affects the feeding as well as cover conditions of the environment and changes in quality and accessibility of food sources occur throughout the year. We studied the consumption of agricultural crops and impact on tree shoots by herbivores in a mosaic landscape. Large herbivores utilized the food supply on the lands outside the forest environment during winter and early spring and in summer. In summer the cereal grains were preferred by herbivores and accounted for a significant share in their diet. The intensity of shoot browsing differed between the localities and between the studied woody species but was not lower due to the presence of attractive crops near the forest. The utilization of food outside the forest may help the animals to survive the winter but the potential of this food for reducing tree browsing in the forest is low.

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