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Results 181 to 210 of 5824:

The effect of soya curd substitution for milk on physical and sensory properties of vanilla gelato productOriginal Paper

Hega Bintang Pratama Putra, Anang Muhammad Legowo, Ahmad Ni'matullah Al-Baarri, Siti Susanti

Czech J. Food Sci., 2025, 43(3):187-193 | DOI: 10.17221/209/2024-CJFS

The investigation was aimed to evaluate the physical (total solids, melting rate, viscosity, and overrun) and sensory properties of vanilla gelato (VG) made by substituting soya curd (SC) for milk. Samples were VG without SC (F0) and with SC, i.e. 25% (F1), 50% (F2), and 75% (F3). Each sample criterion consisted of 5 repetitions (n = 20). Results showed that F3 possessed the lowest total solids, viscosity, and overrun while its melting rate was the highest among other SC substitution levels (P < 0.05). The sensory test delineated that F3 had a less soft texture, although its aroma and flavour were not different from others (P < 0.05). Thus, the greater portion of SC substitution for milk in the VGmaking process would substantially affect the physical properties of its final product in which the total solids, viscosity, and overrun were lower while the melting rate was higher. Substituting SC for milk in VG did not affect the sensory properties, except the texture. The higher SC amount used for milk substitution would result in VG with a less soft texture. SC at a certain level of substitution was potentially expected as an innovation of the phyto-gelato product, namely soy gelato.

Alternative solution for determining the irrigation water quantity: ETGaugeOriginal Paper

Ismail Tas, Fatih Cem Kuzucu

Soil & Water Res., 2025, 20(4):219-233 | DOI: 10.17221/25/2025-SWR

Measuring the reference evapotranspiration (ET0) is difficult and costly. Some regions can have variable microclimates and these can often be quite far from climate stations. Therefore, it is optimal to use local measurements rather than a regionally calculated ET0. In this respect, one piece of equipment that provides cheap and reliable measurement results is ETGauge equipment. In this study, ET0 values measured with ETGauge equipment were compared with daily and monthly ET0 values calculated by five different commonly used empirical methods (ThornthwaiteAdj, Blaney-Criddle, Penman-Monteith = PM, Jensen-Haise and ASCE standardised Penman-Monteith = ASCE SZ PM). During the measurement period, daily ET0 values measured with ETGauge varied between 0–10 mm/day and the average was determined as 4.5 ± 2.7 mm/day in the study area. In the calculations made with the empirical models, the change in ThornthwaiteAdj is 1.3–6.6 mm/day with an average of 3.8 ± 1.6 mm/day, the change in Blaney-Criddle is 1.8–7.2 mm per day with an average of 5.1 ± 1.4, the change in PM is 1.2–10.5 mm/day with an average of 5.8 ± 2.7 mm/day, the change in Jensen-Haise was 5.8 ± 2.7 mm/day with an average of 5.5 ± 2.7 mm/day, and the change in ASCE SZ PM was calculated as 1.0–10.1 mm/day with an average of 5.4 ± 2.5 mm/day. Considering the obtained results, the ETGauge equipment can be used safely in creating irrigation programmes.

Approximation of the soil particle-size distribution curve using a NURBS curveOriginal Paper

Adéla Marie Marhoul, Tomá¹ Herza, Josef Kozák, Jaroslava Jankù, Jan Jehlièka, Lubo¹ Borùvka, Karel Nìmeèek, Miroslav Jetmar, Petr Polák

Soil & Water Res., 2025, 20(1):16-31 | DOI: 10.17221/139/2024-SWR


Soil particle-size distribution or soil texture presents one of the most important physical properties. There are various systems of the classification systems for soil particle-size fractions with different boundaries. Our effort was concentrated on the mathematical approach to evaluate the existing data and convert it to the form of a reconstructed cumulative particle-size curve which will allow reading concentration of any desired particle size. Non-Uniform Rational B-Splines (NURBS) curves therefore represent a generalization of B-splines and Bézier curves by extending the definition by an element of rationality, which is represented by the weights of the control points, and a nodal vector of parametrization, which represents the element of uniformity. The NURBS curve was used for smooth (depending on the degree of the curve used) and as tight as possible approximation of the arranged control points, the connecting lines of which forms a convex envelope for its individual parts. The NURBS approximation curve is therefore determined by the ordered control points and their connecting lines, the weights of these points, the degree of the curve and the nodal vector of parametrization. However, the construction of the approximation curve is primarily dependent on a limited number of points of the experimentally determined particle-size distribution curves, and for curves with significant breaks in the course, one must consider either a lower accuracy of the approximation or the necessity of “improving” the approximation using the weights of individual points, inserting additional points or working with a nodal vector of parametrization. For basic approximation, the PUGIS system (Czech soil information system) offers automatic approximation using all variants mentioned in the article as well as the possibility of individual changes in the weights of control points, in their number and position, and in the nodal vector of parametrization.

Dynamic parameters of lowering loads at gradual tree fellingOriginal Paper

Tomá¹ Kotek, Jindøich Neruda

J. For. Sci., 2025, 71(2):86-98 | DOI: 10.17221/66/2024-JFS


The lowering of loads at gradual tree felling is the riskiest activity performed by tree climbers. During this activity, great forces emerge and act on the felled tree, while the tree climbers use the tree itself to anchor and secure their stance. This research aims to find out whether certain methods of work or the use of certain rigging for lowering loads exhibit positive features in reducing the forces acting on the anchoring point of the rigging system. The work methodology consists of three operations: (i) the calculation of the coefficient of shear friction for the combination of 4 ropes and 5 lowering devices – altogether 20 combinations; (ii) the mathematical modelling of the maximum forces acting on the lowering loads of known weight; and (iii) the verification of mathematical modelling using a series of measured experiments of lowering loads of known weight. The research results present the calculation of the shear friction coefficient for 20 combinations of rigging rope and lowering devices. The maximum magnitudes of the forces which may act on the upper anchoring point of the rigging system at the known load weight were additionally calculated. A total of 240 force values were measured when a load of 12 kg in weight falls according to a predetermined model situation. The results indicate that the greatest influence on decreasing the impact force generated by the falling load is that of the load attachment, reduced load weight, shortened length of the fall or elongation of the total rope length in the rigging system. The differences in the coefficients of shear friction are apparent in the results of measurements, too.

Granular organic hydrosorbents increase water retention and resistance of boxwood seedlings during droughtOriginal Paper

Markéta Mayerová, Martin Stehlík, Tomá¹ ©imon, Petr Hutla, Ilona Gerndtová

Hort. Sci. (Prague), 2025, 52(2):162-172 | DOI: 10.17221/72/2024-HORTSCI

Sufficient available water in the soil is critical for plant growth, especially soon after planting. Water absorbed by organic hydrosorbents has the potential to reduce drought stress after planting and improve seedling survival. This research evaluates the effectiveness of granular organic hydrosorbents (GOH) in increasing soil-water retention in a pot experiment with boxwood (Buxus sempervirens L.) seedlings. The leaf chlorophyll content was also evaluated to determine plant growth. The following fertilisers were used: GOH 1 comprised 50% biogas products and 50% wheat straw, and GOH 2 combined post-harvest grain, legume and oilseed residues. The fertilisers were applied to the bottom of the pot or mixed with the soil. Both types doubled the initial water retention compared to the control. While the control water retention dropped below zero after 18 days without watering, retention in the fertilised treatments ranged from 0.5 to 0.76 L. Re-watering part of the trial after the 18 days then induced increased retention to the initial levels in all treatments and the control. However, the fertilised plant’s water retention was up to half a litre greater than in the control when the 62-day experiment ended. The effect of GOH application was also manifested in the chlorophyll content. In the no watering mode, the chlorophyll content was, on average, 20% and 13% higher in the treatments with GOH 1 and GOH 2 than in the control. In the watering regime, the application of GOH 1 and GOH 2 increased the chlorophyll content by an average of 31% and 26%, respectively. Finally, these trials established that the GOH applications significantly delayed boxwood-seedling drying and increased their water retention and chlorophyll content in unwatered and re-watered plants.

Mid-term fertilisers and lime effect on grassland in the hilly-mountain region in BalkanOriginal Paper

Vladimir Zorniæ, Vesna Ðuroviæ, Mirjana Petroviæ, Sne¾ana Babiæ, Dalibor Tomiæ, Nedeljko Raciæ, Jasmina Milenkoviæ

Plant Soil Environ., 2025, 71(1):12-20 | DOI: 10.17221/347/2024-PSE

Although the effects of fertiliser addition and liming on semi-natural grassland productivity and biomass quality are well documented, less is known about how fertilisers change plant functional groups and mean ecological values. We researched the effects of liming (no lime and lime with 1 t/ha) and mineral fertilisers (control – no fertilisers, PK-P60K60, N20PK-N20P60K60, N80PK-N80P60K60, and N140PK-N140P60K60) for nine years on the Danthonia alpina Vest. grassland community. Based on Brown-Blanquet cover abundance, we calculated Shannon-Wiener evenness and abundance of plant functional groups (based on height, canopy structure, storage organs presence and flowering duration). We also researched Landolt’s ecological indicator values for nutrients, moisture, reaction, light, and temperature. Results revealed that fertilisers stimulated tall species with longer flowering duration. Shannon-Wiener evenness in control was 0.45, and N20PK increased to 0.71 but significantly decreased in treatment N140PK (0.25). Mean Landolt ecological value for nutrients and moisture increased while temperature dropped. The coverage of legumes and Landolt indicator value for nutrients increased because of the lime application, while the lime had no effect on Shannon-Wiener evenness and abundance of functional groups. Greater Shannon-Wiener evenness in treatments of PK and N20PK is a prerequisite for resistance to the effects of extreme climate events.

Soil-water characteristic curves and related properties of disturbed forest soilsOriginal Paper

Adela Joanna Hamerníková, Pavel Dlapa, Silvia Ihnaèáková, Artemi Cerda, Róbert Kanka, ¥ubo¹ Halada

Soil & Water Res., 2025, 20(3):143-152 | DOI: 10.17221/135/2024-SWR

Forest logging activities negatively affect various soil properties. In this study, we focus on the logging effects on soil water retention and associated pore size distribution. We measured the soil-water characteristic curves (SWCCs) on 21 undisturbed samples from three research plots: a reference area, a clear-cut area and a forest track. A total of 12 SWCC points between saturation and wilting point were determined for each sample with a sand box and pressure plate apparatus. The trimodal behaviour is highlighted by the dependence between soil moisture and suction. Therefore, we proposed a revised model by combining two exponential expressions with the van Genuchten model. The exponential terms describe the influence of macro-and-structural porosities, and the latter is used to calculate textural porosity. This new model with eight independent parameters was suitable to fit trimodal SWCCs in all samples. Results revealed that logging had the most destructive effect on large pores, and the soil on the forest track was the most affected. Both soil-air and available water capacity were reduced and the permanent wilting point increased as a result of damage to the soil structure and pore system. Observed increased organic carbon content in compacted soils can be attributed to slowed decomposition due to reduced air capacity and increased waterlogging susceptibility of damaged soils.

Effect of pasteurisation and high-pressure processing on selected bioactive components in human milk – An experimental studyOriginal Paper

Miroslava Jandová, Michaela Fi¹erová, Pavla Paterová, Pavel Mìøièka, Jan Malý, Marián Kacerovský, Eli¹ka Kovaøíková, Jan Strohalm, Kateøina Demnerová, Jana Kadavá (email: jana.kadava@vs

Czech J. Food Sci., 2025, 43(3):170-178 | DOI: 10.17221/45/2025-CJFS

High-pressure processing (HPP) represents a promising alternative to conventional Holder pasteurisation (HoP) used by human milk banks worldwide. The objective of this study was to identify whether the HPP would achieve the same or better retention of the content of selected analytes than the HoP. Samples collected from 15 breast milk donors were processed in four ways: i) no treatment; ii) HoP; iii) HPP in cycles (350 MPa, 4 cycles); iv) continuous HPP (350 MPa, 20 min). The content of secretory immunoglobulin A (sIgA), lactoferrin and lysozyme was determined using commercially available ELISA kits, and the lipase activity was assessed using an A-lipase activity assay kit. Data were compared statistically using paired t-tests. HoP significantly reduced the content of lysozyme and lactoferrin as well as lipase activity (P < 0.001). Cycled HPP significantly decreased lipase activity (P = 0.002), while continuous HPP led to a significant decrease in lysozyme content (P = 0.001) and lipase activity (P = 0.014). Cycled HPP showed high retention of pretreatment levels of lysozyme – median 99 (88; 99%), lactoferrin – 84 (66; 105%), and sIgA content – 83 (28; 117%). Among the studied treatment regimens, the best preservation of initial levels of bioactive components was achieved using HPP at 350 MPa in cycles.

Rainfall induced changes in soil moisture: A comparative study of conventional and strip tillageOriginal Paper

Vojtìch ©tros, David Kincl, David Kabelka, Jan Vopravil

Soil & Water Res., 2025, 20(4):234-242 | DOI: 10.17221/56/2025-SWR

Strip tillage is a very popular form of conservation tillage that is used in places with a higher risk of soil erosion. It is commonly accepted that strip tillage reduces the effects of water erosion; however, the exact way this effect is produced is very hard to quantify. This study focuses on the way strip tillage influences soil moisture and the way it changes with different intensities of rainfall, in comparison with conventional tillage. This study was conducted near Petrovice, Støedoèeský kraj, Czechia, over the course of four years (2021–2024). The conditions of all four test sites were comparable, both in terms of slope and soil type present. The soil moisture of strip tillage in a depth of 15 cm was changing differently in comparison with conventional tillage. During lower intensity rainfall events, the soil moisture of the strip tilled plot changed significantly less in comparison with conventional tillage. On the contrary, when more intense precipitation occurred, the soil moisture in the strip-tilled plot responded with significantly higher changes in comparison with conventional tillage. Soil drying after precipitation was also studied, with the speed of drying of strip tillage being higher than that of conventional tillage. These findings help better understand the changes strip tillage introduces into the soil and to the crops it is used with.

Colostrum quality in Northern Italy: The role of dry cow nutrition and colostrum feeding managementOriginal Paper

Martina Pavesi, Giulia Gislon, Serena Bonizzi, Stefania Colombini, Nicola Palladini, Maddalena Zucali

Czech J. Anim. Sci., 2025, 70(11):459-466 | DOI: 10.17221/104/2025-CJAS


This study investigated the effects of dry cow feeding on colostrum quality. A survey was conducted, and samples of colostrum and feed ingredients were collected from 25 dairy farms in Northern Italy. Colostrum was analysed for quality in terms of Brix value and gamma globulins, while diets and feed ingredients were analysed for their chemical constituents. The mean colostrum quality (n = 163) was 24.3 ± 4.41% Brix and 54.2 ± 20.8 g/l gamma globulin. The refractometer method effectively assessed colostrum quality, correlating accurately with laboratory gamma globulin measurements (R = 0.729). Factor analysis indicated that key nutrients, such as protein and fat daily intakes in dry cow diets, influenced colostrum immunoglobulin G. Furthermore, supplementation of selenium, vitamin A, vitamin B12, and vitamin E also improved colostrum quality. Colostrum feeding occurred, on average, 5.44 ± 2.63 h post-calving, with a quantity of 2.74 ± 0.71 l per meal, which is below the recommended 10% of the calf body weight. However, the maximum feeding time was 12 h, and the minimum colostrum quantity was 1.25 l, highlighting considerable room for improvement.

Biochemical and antioxidant responses of common carp (Cyprinus carpio) exposed to sublethal concentrations of the antiepileptic and analgesic drug gabapentinOriginal Paper

J Blahova, P Mikula, P Marsalek, Z Svobodova

Vet Med - Czech, 2025, 70(1):20-29 | DOI: 10.17221/75/2024-VETMED

The present study aimed to evaluate the biochemical and antioxidant responses of common carp after exposure to the antiepileptic and analgesic drug gabapentin at concentrations of 0.1, 1, 10, and 100 μg/l for 4 weeks. The exposure to the highest two concentrations resulted in significant changes in plasma indices such as glucose (only group 100 μg/l), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), lipase, creatine kinase (CK), amylase as well as butyrylcholinesterase (BChE). Similar trends were found in both groups exposed to the environmentally relevant concentrations (i.e., 0.1 and 1 μg/l). In addition, a significant increase in the ferric-reducing power of the plasma was noted in all treated groups. Numerous changes in antioxidant enzymes, superoxide dismutase, catalase, glutathione-S-transferase, as well as lipid peroxidation, were observed especially in the caudal kidney in the group exposed to 100 μg/l. Significant findings were also confirmed in the group exposed to an environmentally relevant concentration (1 μg/l), with a decrease in superoxide dismutase in the gill and an increased lipoperoxidation in the caudal kidney. Our research shows that subchronic exposure to gabapentin may pose a significant risk to non-target aquatic organisms, such as disruption of metabolic pathways or induction of oxidative stress, even at environmentally relevant concentrations.

Salt stress mitigation in chickpea seedlings: a comparative study of zinc oxide nano and bulk particlesOriginal Paper

Nadiyah M. Alabdallah

Plant Soil Environ., 2025, 71(6):398-408 | DOI: 10.17221/115/2025-PSE

Nanotechnology plays a vital role in enhancing plant tolerance to salt stress; however, comparative studies on zinc oxide bulk particles (ZnO bulk) and zinc oxide nanoparticles (ZnO NPs) in this context remain unexplored. Since zinc (Zn) is an essential micronutrient involved in enzyme activation, photosynthesis, and antioxidant responses, it is important to understand how ZnO bulk and ZnO NPs influence chickpea growth under salt stress. This study investigated the morphological and physiological responses of chickpea seedlings treated with ZnO bulk (50 mg/L) and ZnO NPs (50 mg/L) under varying salt concentrations (20, 40, 80, and 120 mmol/L). Salt stress significantly inhibited chickpea growth, reducing the relative growth rate, net assimilation rate, total chlorophyll content, and potassium (K) and zinc ion levels while increasing sodium (Na), chlorine (Cl), malondialdehyde (MDA), and proline content. However, the application of ZnO bulk and ZnO NPs improved these parameters, mitigating the negative effects of salt stress. Furthermore, exogenous ZnO bulk and ZnO NPs to salt-stressed (20, 40, 80, and 120 mmol/L) chickpea resulted in decreased malondialdehyde content by 30, 32, 47, 34%, and 58, 31, 48, 47%, proline content by 4, 6, 1.6, 4% and 22, 21, 22, 28%, respectively, in comparison to the control. Notably, ZnO bulk and ZnO NPs enhanced antioxidant enzyme activities, including superoxide dismutase, catalase, ascorbate peroxidase, glutathione peroxidase, and glutathione reductase. These findings suggest that foliar application of ZnO bulk and ZnO NPs helps alleviate salt stress in chickpeas, promoting better growth and physiological performance under saline conditions.

Gastric survival of lactic acid bacteria in probiotic-labelled products from the Turkish market: An in vitro studyOriginal Paper

Gizem Özlük, Gabriela Krausová

Czech J. Food Sci., 2025, 43(5):344-351 | DOI: 10.17221/36/2025-CJFS

The resilience of lactic acid bacteria (LAB) in commercial probiotic products remains a critical area of investigation, particularly regarding their capacity to survive the harsh gastric environment. Scientific guidelines indicate that at least 6 log CFU·g–1 of viable probiotics must reach the intestines to achieve therapeutic benefits, which often requires an initial concentration of 8–9 log CFU·g–1 in the product. However, national regulations may specify lower thresholds; for example, Turkish Food Legislation requires 6 log CFU·g–1 for probiotic products and 7 log CFU·g–1 for kefir products. This study evaluates the in vitro gastric survival of LAB in 20 probiotic-labelled foods and 5 supplements available in the Turkish market using a simulated gastric model. Results reveal that 75% of the marketed probiotic-labelled foods comply with their label claims. Additionally, 55% of the samples demonstrate LAB strains fully resistant to gastric acidity. Dairy-based products exhibit significantly better survival rates under simulated gastric conditions compared to supplements, highlighting their potential for enhanced therapeutic efficacy.

Cahuiche (Vaccinium leucanthum Schltdl.): A berry with antioxidant, antihypertensive and antibacterial potentialOriginal Paper

Javier Castro-Rosas, Carlos Alberto Gómez-Aldapa, Edna Zaranne Martinez-Ramirez, Netzahualcoyol Calcáneo-Martíne, Reyna Nallely Falfán-Cortés

Czech J. Food Sci., 2025, 43(5):336-343 | DOI: 10.17221/218/2024-CJFS


The aim of this research was to quantify the bioactive compounds; antioxidant, antibacterial, and antihypertensive capability of different cahuiche (Vaccinium leucanthum Schltdl.) extracts in vitro. Aqueous, ethanolic, and methanolic extracts were obtained from cahuiche berries (Vaccinium leucanthum Schltdl.). Total phenols, flavonoids (quercetin and catechin), and anthocyanins contents were determined, and antioxidant activity was also determined using ABTS [2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic) acid] and DPPH (2,2-diphenyl-1-picrylhydrazyl), antibacterial activity, and antihypertensive potential, using angiotensin I-converting enzyme (ACE) inhibitor activity (%) in vitro. Methanolic extract showed the highest total phenols (1187.88 ± 87.48 mg gallic acid equivalents), catechin (372.17 ± 35.23 mg catechin equivalents), anthocyanins (578.89 ± 38.5 mg cyanidin-3-glucoside equivalents), ABTS (98.26 ± 0.00%) and DPPH (44.06 ± 3.95%) antioxidant activity, and ACE inhibitor activity of 80.20 ± 2.46%. All extracts presented antibacterial activity against Staphylococcus aureus (ATCC 25923) and Listeria monocytogenes (ATCC 19115) with inhibitor zones of > 11 and 13 mm, respectively. Cahuiche berries are potentially an ideal food or functional ingredient due to their biological activities as natural antihypertensive and antibacterial agent, and high bioactive compound contents.

Effect of vatinoxan co-administered with medetomidine on intraocular pressure and pupil diameter in healthy dogsOriginal Paper

P Rauser, M Mrazova, A Sabatova, K Jiraskova

Vet Med - Czech, 2025, 70(12):427-431 | DOI: 10.17221/47/2025-VETMED

Medetomidine, an alpha-2 adrenoreceptor agonist, is used for sedation. This study aimed to determine the influence of the alpha-2 adrenoreceptor antagonist vatinoxan, co-administered with medetomidine, on healthy dogs’ intraocular pressure (IOP) and pupil diameter (PD). A prospective, randomised, masked clinical study was performed. A total of 40 conscious dogs were allocated to one of two groups: medetomidine 0.01 mg/kg with vatinoxan 0.2 mg/kg intravenously (MV-group, n = 20) or medetomidine 0.01 mg/kg intravenously (M-group, n = 20). The IOP, PD, heart rate, and mean arterial pressure were measured prior to baseline and 5, 10, and 20 min after drug administration. Data were analysed using one- and two-way repeated measures ANOVA or their non-parametric equivalents (P < 0.05). No significant differences in IOP within or between groups were recorded. In the MV-group, PD remained unchanged compared to baseline. In the M-group, PD significantly (P = 0.007, P < 0.001, P < 0.001) decreased compared to baseline at all observation times. PD was significantly (P = 0.010, P < 0.001, P < 0.001) smaller in the M-group at all observation times compared to the MV-group. Vatinoxan co-administered with medetomidine, as well as medetomidine alone, did not significantly influence IOP. Vatinoxan with medetomidine did not affect PD, while medetomidine alone significantly reduced it.

Influence of various biofertilizers on root growth dynamics in sweet cherry (Prunus avium L.) cv. 'Vanda'Original Paper

S³awomir G³uszek, Lidia Sas-Paszt, Edyta Derkowska, Beata Sumorok, Miros³aw Sitarek

Hort. Sci. (Prague), 2021, 48(3):105-116 | DOI: 10.17221/119/2020-HORTSCI

The experiment was established in the Pomological Orchard of The National Institute of Horticultural Research in Skierniewice in a system of randomized blocks. The aim of the experiment was to investigate the impact of innovative organic fertilizers: BioIlsa, BioFeed Ecomix, biostimulator Ausma and mycorrhizal inoculum Mykoflor on the fine roots growth characteristics of 'Vanda' sweet cherry trees in comparison with NPK mineral fertilization. The experiment involved five combinations, in three repetitions of three trees each, treated with tested preparations. The study assessed the influence of fertilization on the lifespan of the roots, the depth of their formation, their diameter and survivorship using minirhizotron camera. The highest numbers of roots were found in the treatment where the plants were fertilized with NPK and the lowest following the use of the biofertilizer BioFeed Ecomix. The longest lifespan was shown by the roots of the trees treated with BioFeed Ecomix - 347 days, and the shortest - by those fertilized with the Ausma - 225 days. The lifespan of the roots increased with their diameter. The roots that lived the longest had a diameter in the range from 0.9 to 1.0 mm - 568 days, and the shortest-living were the roots with a diameter smaller than 0.3 mm - 238 days. The roots that formed in late autumn and winter had the shortest median lifespan of 159 days, while the roots formed in the spring where characterized by the longest lifespan of 300 days. The lifespan of the roots formed close to the soil surface was the shortest - 225 days, while that of the roots formed at a depth of 10 to 20 cm was the longest - 326 days. Biological origin, organic nitrogen rich fertilizers positively influence on fine roots lifespan and longevity. Mineral fertilization increases number of new formed roots.

Effect of surface-applied compost on soil propertiesOriginal Paper

Markéta Miháliková, Kamila Bá»ková, Petr Dvoøák, Recep Serdar Kara, Cansu Almaz, Martin Král, Barbora Badalíková, Kvìtu¹e Hejátková, Vladimír Ma¹án, Patri

Soil & Water Res., 2025, 20(2):71-83 | DOI: 10.17221/148/2024-SWR

The positive influence of surface compost application without incorporation on soil physical properties is known but remains underexplored. This study evaluated the effects of surface-applied stable and mature compost on basic soil physical and chemical properties, including saturated hydraulic conductivity, aggregate stability, and penetration resistance. Conducted as a semi-operational field experiment in two Czech agricultural sites (A: Blatnice at Jaromìøice and B: Jevíèko; Cambisols with loam and silty clay loam textures, respectively), the plots were treated with compost (SCA) at rates of 4 × 30 t/ha (A) and 1 × 200 t/ha (B) or left untreated as controls (CON). The crops were wheat (A), maize (A, B) and intercrops. Surface compost application began in 2022, and soil sampling and field measurements were conducted during the 2023 and 2024 growing seasons. Results showed significant positive changes (P < 0.05 or lower) in SCA plots compared to CON. Soil organic matter content increased by 27.8% at locality A and by 58.1% at locality B, while saturated water content increased by 5.3% (A) and 11.0% (B) in the latter season. Similarly, pH and electrical conductivity showed increases. Water-stable aggregate ratios increased by 6% to 30% at both localities. Dry bulk density decreased by 10.5% (A) and 15.7% (B). Improvements in saturated hydraulic conductivity (by 28.6%) and penetration resistance were observed only at locality B. These findings show the potential of surface-applied stable and mature compost to enhance soil properties effectively.

Diameter growth performance of northern red oak (Quercus rubra L.) in northeastern HungaryOriginal Paper

Tamás Ábri, Zsolt Keserû, Veronika Honfy, Károly Rédei

J. For. Sci., 2025, 71(8):384-392 | DOI: 10.17221/39/2025-JFS

Northern red oak (Quercus rubra L.) is an important introduced tree species in Hungary, particularly in the Nyírség region. This study investigates its diameter growth (DBH) in six forest subcompartments, with stand ages ranging from 20 to 71 years. 5- and 25-year diameter increments were calculated. The distribution of diameter and diameter increment values was also determined. The results show significant growth across all sites. For example, quadratic mean diameter (QMD) increased from 16.4 cm to 30.4 cm over 25 years in the forest subcompartment Encsencs 12A, and from 20.3 cm to 38.4 cm in Ófehértó 2A. Five-year DBH increments ranged from 1.8 cm (± 0.8) in older stands to 4.2 cm (± 0.5) in younger or middle-aged stands. The findings confirm Q. rubra's capacity for steady diameter growth in northeastern Hungary and contribute valuable growth data for future yield modelling and forest management strategies.

Annual dynamics of plant litter calcium and magnesium stocks in a subtropical forest headwater streamOriginal Paper

Weikang Chen, Ling Xiong, Qiqian Wu, Petr Hedìnec, Yan Peng, Zemin Zhao, Chaoxiang Yuan, Ji Yuan, Xiangyin Ni, Fuzhong Wu, Kai Yue

Soil & Water Res., 2025, 20(3):164-177 | DOI: 10.17221/7/2025-SWR

Forest headwater streams serve as critical interfaces between terrestrial forests and downstream aquatic ecosystems, playing essential roles in the storage and movement of carbon (C) and nutrients. However, despite their importance, our understanding of the dynamics of plant litter calcium (Ca) and magnesium (Mg) stocks within these streams remains limited. In this study, we conducted a quantitative analysis of the spatiotemporal dynamics of plant litter Ca and Mg concentrations and stocks in a subtropical forest headwater stream from March 2021 to February 2022. We found that: (1) the average concentrations of litter Ca and Mg were 9.9 and 0.7 mg/g, respectively, with mean stocks of 8 792.3 and 620.8 mg/m2, respectively; (2) significant variations in litter Ca and Mg concentrations were observed among non-woody debris (13.1 and 0.9 mg/g), fine woody debris (9.0 and 0.5 mg/g), and coarse woody debris (6.1 and 0.4 mg/g), though plant litter type did not significantly affect the stocks of Ca and Mg; and (3) the stocks of Ca and Mg were positively correlated with factors such as rainfall amount, rainfall frequency, water temperature, flow velocity, water depth, electrical conductivity, and discharge, while negatively correlated with stream water alkalinity and dissolved oxygen levels. These findings highlight the critical role of plant litter in headwater streams as a component of forest nutrient stocks and provide empirical support for incorporating headwater streams into the assessment of nutrient stocks and fluxes in forest ecosystems.

Conduction block and thin and hypokinetic myocardial segments in feline hypertrophic cardiomyopathyCase Report

Y Sung, J Park, Y Chae, T Yun, BT Kang, H Kim

Vet Med - Czech, 2025, 70(8):302-306 | DOI: 10.17221/14/2025-VETMED

A 12-year-old castrated male domestic shorthair cat was referred for respiratory distress. Physical examination revealed a systolic heart murmur at the left apex and crackles in all lung fields. Thoracic radiography showed Valentine-shaped cardiomegaly, pulmonary oedema, and pleural effusion. Echocardiography revealed focal thickening of the interventricular septum [11.01 mm; reference interval (RI) = 3.00–5.20 mm] and left ventricular posterior wall (7.41 mm; RI = 3.00–5.10 mm) during diastole. In the apex region, the free wall was focally thinned to approximately 1.6 mm with hypokinetic myocardial movement, indicating thin and hypokinetic myocardial segments. Additionally, decreased left atrial fractional shortening (12.5%; RI = 23.9–34.9%) and an increased left atrial-to-aortic ratio (2.87; RI = 0.88–1.43) were observed, along with spontaneous echocardiographic contrast in the left atrium, indicating increased thrombotic risk. The electrocardiogram showed a left axis deviation with small R waves and deep S waves in lead II, which is consistent with a left anterior fascicular block caused by delayed conduction in the left anterior fascicle. This case report describes the coexistence of a left anterior fascicular block and thin, hypokinetic myocardial segments in feline hypertrophic cardiomyopathy, suggesting a possible pathophysiological link.

Comparison of the cadmium and lead removal from three soils by electrokinetic remediationOriginal Paper

Mei Zhang, Chengdong Duan, Xinfu Wang

Soil & Water Res., 2025, 20(3):195-205 | DOI: 10.17221/140/2024-SWR

This study investigated, for the first time, the efficacy of citric acid (CA) and ethylenediaminetetraacetic acid (EDTA) as electrolytes in electrokinetic remediation (EKR) for removing lead (Pb) and cadmium (Cd) from three distinct soils (Anthrosols soil, AT; Acrisols soil, AC; and Chernozems soil, CH). Under a voltage gradient of 2 V/cm and a remediation duration of 4 days, EDTA proved most effective for Anthrosols, achieving removal rates of 17.8% for Cd and 12.8% for Pb-lower than those observed for Acrisols and Chernozems, likely due to AT’s high pH background. These results suggest that combining EKR with other remediation techniques could enhance efficiency for such soils. For Acrisols soil, extending the remediation time to 10 days significantly improved metal removal: Cd removal reached 91.1% with CA, while Pb removal attained 62.7% with EDTA. Chernozems soil exhibited higher sensitivity to EKR, with pronounced focusing phenomena. In CH1, Cd removal in anode-proximal (S1) zone reached 99%, but accumulation in the cathode-adjacent (S4 and S5) reduced the average removal rate to 22%, indicating the potential for improvement through cathodic control. Similarly, in CH2, Pb removal in S5 achieved 84.8%, while focusing in S1 suggested the need for anodic optimisation. These findings highlight the influence of soil properties and operational parameters on EKR efficiency, providing insights for tailored remediation strategies.

The impact of drip irrigation on soil quality in sloping orchards developed on marl - A case studyOriginal Paper

Mateja MUR©EC, Jean LEVEQUE, Remi CHAUSSOD, Pierre CURMI

Plant Soil Environ., 2018, 64(1):20-25 | DOI: 10.17221/623/2017-PSE

The impact of drip irrigation on structural stability of soil aggregates was studied in soils of an apple (Malus domestica Borkh.) orchard, developed on marl. The field study was carried out in a sloping (20%) terrain in the north-eastern Slovenia at three slope positions (upslope, mid-slope and downslope), involving a comparison of irrigated versus non-irrigated situations after 6 years of drip irrigation practice. Structural stability was studied in three soil layers (0-5, 5-15 and 15-30 cm) at the end of the irrigation season (in September). In the same samples, soil organic carbon, total carbonates and soil moisture contents were determined. Drip irrigation significantly reduced structural stability and soil organic carbon in the surface soil layer (0-5 cm), while total carbonates increased. Based on the whole set of data, structural stability was strongly positively correlated with total carbonates and negatively correlated with soil organic carbon. This means that the effect of higher level of organic matter mineralisation on structural stability, due to irrigation, is counterbalanced by the increase of total carbonates content in the fine textured calcareous soils. Thus, a negative effect of irrigation on soil organic carbon had less destructive consequences on structural stability than expected.

Antiviral agents targeting the influenza virus: a review and publication analysisReview

L. Eyer, K. Hruska

Vet Med - Czech, 2013, 58(3):113-185 | DOI: 10.17221/6746-VETMED

Influenza is a serious infectious disease, which is life-threatening especially in children, seniors and immunocompromised patients. In addition to vaccination, the development of new anti-influenza agents represents a crucial defence strategy to combat seasonal and pandemic influenza strains. At present most attention is paid to the development of inhibitors of influenza neuraminidase, which has been established as a key drug target for the prophylaxis and treatment of influenza infections. However, the emergence of drug-resistant influenza variants highlights the need of continuously innovative strategies for the development of new drugs with improved antiviral effects, higher safety and increased tolerability. In this review article, an analysis of publications describing anti-influenza agents indexed in the Web of Science® database has been carried out. The most important publications are presented in tables and are characterised by several key words, abstracts and references. The presented publications have been sorted according to five basic criteria: (i) review articles, (ii) design, synthesis and evaluation of new anti-influenza drugs, (iii) major classes of anti-influenza drugs, (iv) combination therapy of influenza infections and (v) influenza drug resistance. The design of this review article allows us to offer a complex overview of known antiviral agents targeting influenza viruses, facilitates easy and rapid orientation in numerous publications written on this subject, and aids the gathering of required data.

The effect of various factors (light, temperature, salt, and drought) on germination of Bromus sterilis L.Original Paper

Kateøina Hamouzová, Jaromír ©uk, Soham Bhattacharya, Jakub Mikulka, Veronika Valièková, Michaela Koláøová, Josef Soukup

Plant Soil Environ., 2024, 70(5):287-295 | DOI: 10.17221/21/2024-PSE

Bromus sterilis L. (barren brome) is one of the most economically important noxious grass weeds in the winter cereal fields of Europe. Its ecological behaviour in this agro-climatic region should be assessed for effective weed control strategies. The present study was conducted to assess the dormancy and germination response of the B. sterilis population from the Czech Republic under thermal, light, and stress conditions. The dormancy loss experiment revealed that seeds exposed to the light regime showed a remarkably lower percentage of germination, and under alternating temperatures of 10/20 °C in dark conditions, rapid loss of primary dormancy was observed. This population was found to germinate across a wide temperature range of 5–35 °C, with the highest germination rate at 25 °C (T50 = 1.14 days in dark, 1.21 days in light) and the germination time increased with decreasing temperatures below 25 °C. Further, due to fitness advantage, herbicide-resistant (R) biotypes were found to be more stress-tolerant than susceptible (S) biotypes under salinity and drought conditions. In the highest stress conditions, the germination of S biotypes was negligible, while R biotypes can germinate under high stress, but germination decreased below 25 °C. The current findings may add value to effective weed control strategies using prediction models based on seed dormancy and germination values under different hydrothermal conditions.

Effect of legume (Fabaceae Lindl.) seeds on selected life activities in J2 stage of Meloidogyne haplaOriginal Paper

Renata Dobosz, Roman Krawczyk

Plant Protect. Sci., 2024, 60(2):193-206 | DOI: 10.17221/17/2024-PPS

Meloidogyne hapla is a serious pest of many cultivated plants. In response to the economic significance of the species, efforts are being made to develop a new method to reduce its harmful effects on crops. The aim of the study was to determine the effect of diffusates from seeds of selected species of legumes on the motility of second-stage juveniles and to evaluate the effect of meal from seeds of selected species of legume on the capacity to infect the roots of tomato plants by the J2 stage. The experiment examined the effect of diffusates on the motility of the J2 stage performed in Petri dishes, at temperatures of 10 °C, 17 °C and 21 °C. The evaluation of the J2 stage infectivity was estimated in a pot experiment performed under controlled conditions of 20 ± 1 °C. The pots were filled with sterile substrate mixed with meal from the seeds of selected plants at 1%, 5% and 10% of the substrate weight. The studies carried out in the Petri dishes showed varying effects of the seed diffusates from selected legume plants on the motility of the J2 stage of Meloidogyne hapla. J2 were found to lose their motility within 24 h after immersion in water containing seed diffusates from Melilotus albus, Trifolium pratense T. repens, in the temperature ranges investigated (10 °C, 17 °C and 21 °C). However, in a mixture of seed diffusates and soil filtrate from the root zone of tomato plants, the absence of motility in the second-stage juveniles was observed after 24 h at 17 °C and 21 °C, with seed diffusates from Lotus corniculatus, Medicago sativa, Medicago × varia, Melilotus officinalis, as well as Onobrychis viciifolia, Ornithopus sativus, Vicia sativa, used in the mixture. Galega officinalis Risa (GoR) seed diffusates were found to have an inhibiting effect on the motility of the J2 stage of M. hapla 24 h following the immersion of the J2 stage in the solution of the soil filtrate containing tomato root diffusates, at 21 °C. The J2 stage were not rendered immotile in all the experiment set-ups involving the seeds of V. faba, Lupinus spp., likewise in the control set-ups. In the pots studied, a significant effect of the addition of legume seed meal on the development of M. hapla nematodes and tomato plants was found. The introduction of Lotus corniculatus, Onobrychis viciifolia and Vicia sativa seed meal into the substrate in the proportion of 1%, 5% and 10% resulted in the inhibition of the J2 stage penetration into the roots of tomato plants at temperatures of 17 °C and 21 °C. With the admixture of the M. sativa and T. repens seed meal, within the temperature range investigated, no nematode infection was observed in the roots, regardless of the seed meal content in the substrate. As regards to the fresh weight, tomato plants grown in a substrate containing 1% and 5% of the V. sativa cv. Jaga seed meal were characterised by significantly higher plant weight values as compared to those grown in the control set-up. The obtained results imply that is advisable to expand the scope of research to include other economically important crops damaged by the northern root-knot nematode.

Computed tomographic visualisation and 2D/3D microscopic evaluation of soil macro- and micromorphologyOriginal Paper

Lubica Pospí¹ilová, Jana Plisková, Victory Armida Janine Jaques, Tomá¹ Zikmund, Lubo¹ Sedlák, Ale¹ Eichmeier, Ale¹ Klement, Radka Kode¹ová, Lu

Soil & Water Res., 2024, 19(3):176-189 | DOI: 10.17221/47/2024-SWR

Erratum in: Soil & Water Res., 20: 69. Doi: 10.17221/2/2025-SWR

Soil organic matter and pores distribution within aggregates were studied using X-ray computed tomography (XCT; Nikon XT H 225ST and GE Phoenix L240) and advanced 2D/3D measurements by the digital Keyence VHX-6000 microscope (Japan). A new methodological approach with computed tomography involvement for studying the spatial arrangement of pores, porosity, and soil morphology is presented. Changes in studied parameters are documented along the transect of intensively used Haplic Chernozem. Soil disturbance due to erosion and colluvial soil profile formation is reported. Moreover, soil organic matter quality and aggregate stability were evaluated. Obtained results showed statistically significant differences between the control and eroded sites and between eroded and accumulated sites. The correlation coefficients were the highest for soil organic carbon (SOC) and humic substances CHS (r = 0.805) and CHS and CHA/CFA (r = 0.764). The highest porosity, aggregates stability and coefficients stability were confirmed on the eroded site. The computed tomography measurements also document the high disturbance of Haplic Chernozem on the control site and the newly formed profile of Colluvisol. Despite excellent complementary technique further research is necessary to improve micro-XCT resolution and capacity for the soil micromorphological study.

Barnyardgrass (Echinochloa crus-galli (L.) P. Beauv.) resistance to acetolactate synthase-inhibiting and other herbicides in rice in TurkeyOriginal Paper

Koray Kacan, Nihat Tursun, Hayat Ullah, Avishek Datta

Plant Soil Environ., 2020, 66(7):357-365 | DOI: 10.17221/92/2020-PSE

Barnyardgrass (Echinochloa crus-galli (L.) P. Beauv.) is one of the most yield-limiting weeds in rice in Turkey. Barnyardgrass resistance to common herbicides has been reported worldwide; however, such information is largely lacking in the country. The objective of this study was to determine the resistance spectrum of different barnyardgrass populations to the most commonly-used herbicides in rice in Turkey. The susceptibility of 40 barnyardgrass populations was evaluated. The samples were collected from fields with intensive rice cultivation in Balikesir and Çanakkale provinces. Seeds were picked from barnyardgrass plants suspected to be herbicide-resistant because of their survival in the rice fields after herbicides application. A total of 38 populations were resistant to penoxsulam, and the resistance index of these populations ranged from 2 to 39. A total of 24 out of the 38 barnyardgrass populations showed a GR50 (herbicide dose causing a 50% reduction in plant dry matter) value higher than the recommended penoxsulam dose (20.2 g a.i./ha) in rice. Among these 24 barnyardgrass populations, 25, 29.2 and 45.8% populations exhibited high, moderate and low level of penoxsulam resistance, respectively. From the penoxsulam-resistant populations (38), the response of 14 populations (low to high resistance to penoxsulam) to six commonly-used herbicides for barnyardgrass control in rice was evaluated. The selected 14 populations showed resistance to almost all herbicides tested, with the lowest average resistance being determined against profoxydim and the highest average resistance against molinate herbicide. Resistance levels against six commonly-used herbicides in rice ranged from 2 to 34.

Preliminary assessment of effect of disturbance on natural regeneration in gaps of different sizesReview

Maame Esi Hammond, Radek Pokorný

J. For. Sci., 2020, 66(5):185-196 | DOI: 10.17221/25/2020-JFS

The study focused on natural regeneration of European beech (Fagus sylvatica), Norway spruce (Picea abies) and European larch (Larix decidua) within very small and four times bigger size gaps following a disturbance at a mixed temperate forest in the Czech Republic. In spring 2013, experimental gap design starts, when 1 m2 circular sampling plots along transects were delineated within four selected naturally occurring canopy openings with size below 20 m2. In December 2013, these initial canopy openings were artificially enlarged by felling to 226 m2 for small and 904 m2 for big gaps. Regeneration was monitored in the next two consecutive growing seasons after disturbance. Light conditions were measured before and after disturbance. Results indicated that four times larger gaps increased twice levels of light conditions, and that diffuse light starts to equilibrate to direct light there. Large gaps were favouring larch regeneration. Beech regeneration was predominant, independently on gap size as the study area belongs naturally to Beech Forest Vegetation Zone, however, the decline of spruce regeneration was presumably linked to drought. Gap size explained variation of larch regeneration in gaps. Contrarily, gap size could not be associated with the prolific regeneration of beech and abysmal regeneration performances of spruce in gaps.

An unusual finding of schwannoma in the mammary gland of a dogCase Report

M Makovicka, P Bolgac, K Kajo, P Makovicky, P Svorc

Vet Med - Czech, 2024, 69(10):362-368 | DOI: 10.17221/41/2024-VETMED

Peripheral nerve sheath tumours (PNSTs) are rare in the mammary glands of dogs. Here, we report a case of a schwannoma, composed of two parts, of the mammary gland of a dog. The first part consists of clusters of uncircumscribed, alternating, more concentrated and looser regions. In the more concentrated parts, typical fascicularly arranged schwannoma intermingle in plexiform arrangement, more subtle in appearance than in neuronal tumour areas. The second part undergoes regression consisting predominantly of residual shorter rosettes of cells with the presence of a peculiar variably sized swirling of target-like formations consisting of compact, thicker, pinkish lamellae also with occasional adjacent cells. Immunohistochemically, the tumour cells are positive for evidence of vimentin and neuro-specific enolase. They exhibit the variable expression of the S-100 protein, show mild CD56 positivity, and focally mildly accentuated proliferative activity as assessed by Ki-67. The tumour elements are negative for evidence of cytokeratin 7, cytokeratin 20, and oestrogen receptors. Hybrid tumours may change their morphology in combination with atypical localisation and may be underdiagnosed in veterinary biopsy practice. They differ from epithelial tumours prognostically, as well as in their development and behaviour, therefore it is essential to clearly differentiate them.

Obituary of Assoc. Prof. Ing. Jaroslav Polák, DrSc. (1942–2024)Obituary Notice

Ales Lebeda

Plant Protect. Sci., 2025, 61(1):91-94 | DOI: 10.17221/213/2024-PPS

With regret, we have to inform the community of plant pathologists, plant virologists, and plant protection scientists. Assoc. Prof. Jaroslav Polák, a former and long-time Plant Protection Science editorial board member, passed away on May 20, 2024.

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