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Results 751 to 780 of 4551:

Pharmacokinetics of praziquantel and its metabolites in grass carp (Ctenopharyngodon idella) following the oral administration of a single bolusOriginal Paper

R Dobsikova, J Blahova, P Marsalek, V Doubkova, E Zuskova, J Velisek

Vet Med - Czech, 2024, 69(2):52-60 | DOI: 10.17221/109/2023-VETMED

The study aimed to evaluate and compare the routes and rates of the depletion of the antiparasitic praziquantel (PZQ), a derivative of pyrazinoisoquinoline, following its oral administration in grass carp (Ctenopharyngodon idella). We focused on the depletion of PZQ and its major metabolites – cis-hydroxy praziquantel (CPZQ) and trans-hydroxy praziquantel (TPZQ), in water, the plasma, hepatopancreas, kidney, muscle, and skin, following a single oral administration of PZQ in a concentration of 50 mg/kg. Fish were sampled before the drug administration and then eight times in the course of the 30-day-long experiment. Our results indicate the rapid absorption and elimination of PZQ and its metabolites in all the analysed matrices. The most PZQ-burdened tissue was the hepatopancreas, the gill and the skin. In all the samples, the concentration of the drug and its metabolites consistently declined over time. The residue of the parent compound was detected for the longest time in all the tissues. During the study, a significant (P < 0.01) correlation was found within the concentration of PZQ, CPZQ, and TPZQ in the water and all the biological matrices. It was also found that the PZQ residue was not detected below the maximum residue levels (i.e., 20 µg/kg) until 16 days after exposure in the muscle and skin.

Improving photosynthesis and the ascorbate-glutathione cycle of own-root and grafted-root chrysanthemums by brassinolide under drought stressOriginal Paper

Peng Ming Yang, Rui Jiao Yang, Song Tao He

Hort. Sci. (Prague), 2024, 51(1):59-67 | DOI: 10.17221/177/2022-HORTSCI

Many studies have demonstrated that brassinolide improves the drought tolerance of plants. This study aims to test whether the drought tolerance of chrysanthemums can be improved by brassinolide and to clarify the underlying physiological mechanism. An own-root chrysanthemum and a corresponding grafted-root line (Artemisia annua rootstock) were treated with brassinolide under three water levels in a randomised complete block design with five replications. The results showed that brassinolide increased the relative water content, net photosynthetic rate, chlorophyll (Chl) fluorescence parameters, Rubisco, ascorbate peroxidase, glutathione reductase, dehydroascorbate reductase and monodehydroascorbate reductase activities, ascorbate/dehydroascorbate, glutathione/oxidised glutathione and dry mass, and reduced the H2O2 content in the own-root and grafted-root chrysanthemums, especially under drought stresses. The magnitude of the changes to the parameters was greater in the own-root line than in the corresponding grafted-root line under brassinolide treatment. The above parameters showed significant differences (P < 0.05) between the brassinolide chrysanthemums and the corresponding non-brassinolide chrysanthemums under drought stresses. This might be the physiological mechanism of improved drought tolerance by brassinolide in chrysanthemums.

Unravelling the bidirectional impact of Chinese agricultural subsidy policy on agricultural efficiency and farmers‘ income through panel data analysisOriginal Paper

Yungang Tang, Haojie Liao, Ye Wu, Gang Lei

Agric. Econ. - Czech, 2024, 70(4):165-177 | DOI: 10.17221/335/2023-AGRICECON


This study examined the bidirectional impact of Chinese agricultural subsidy policies on agricultural efficiency and farmers’ income. It employed panel data from 2004 to 2020 across 31 Chinese provinces, and the three-stage least squares method was used for simultaneous estimation. Different regions and farmer types were analysed separately. The findings revealed a significant bidirectional impact of the agricultural subsidy policy on agricultural efficiency and farmers’ income, signifying a strong positive feedback loop. Varied types and levels of subsidy policies differently impacted regions and farmer categories, showcasing diverse outcomes and adaptive responses to subsidy policies. The ratio of total subsidy to GDP (SUBGDP) positively impacted production efficiency and per capita disposable income. This result suggests that the subsidy policy helped enhance agricultural production efficiency and increased farmers’ income levels. Conversely, the ratio of various subsidies to the total subsidy manifested different directions and degrees of impact on production efficiency and per capita disposable income, suggesting areas where the subsidy policy framework can be optimised. In addition to presenting a theoretical discussion on agricultural subsidy policies, this study provides theoretical insights and policy recommendations for the formulation and implementation of an optimal agricultural subsidy policy.

Adjusting the sowing date of fresh maize to promote grain filling, key starch synthesis enzymes, and yieldOriginal Paper

Lin An, Hailong Wei, Yi Cheng, Jun Zou, Jin Zuo, Dailing Liu, Bi Song

Plant Soil Environ., 2024, 70(7):438-453 | DOI: 10.17221/490/2023-PSE

Clarifying the effects of meteorological factors on the growth and development of fresh maize after delayed sowing is important for selecting appropriate sowing dates and improving yield. Six sowing dates (B1 (March 10); B2 (March 20); B3 (March 30); B4 (April 9); B5 (April 19), and B6 (April 29)) and three fresh maize cultivars (A1 (Wan Nuo 2000); A2 (Nongke Nuo 336), and A3 (Caitian Nuo 6)) were chosen for experiments conducted between 2021 and 2022 in Guiyang, Qingzhen City, China. The results showed that the whole growth period and sowing-silking period were significantly reduced with delayed sowing, while the grain-filling period was relatively stable. Delayed sowing was beneficial in increasing the number of endosperm cells and the weight of the hundred kernels. The graining filling rate and the activities of four key starch synthesis enzymes (sucrose synthase, ADP-glucose pyrophosphorylase, starch branching enzyme, and starch debranching enzyme) were significantly influenced by light, temperature, and precipitation, and they mainly affected the hundred kernel weight. The yield tended to increase with delayed sowing, and the correlation analysis between precipitation and yield at different sowing periods showed a significant effect of precipitation on yield. Delaying the sowing to mid-early April was more favourable for grain filling, enhanced key enzyme activity, and increased the kernel weight and yield. These results highlight the importance of choosing excellent cultivars and matching them with the most suitable sowing date to fully exploit climatic resources and achieve high-yield and high-efficiency cultivation of fresh maize.

A serological survey of wild boar in Serbia for Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniaeOriginal Paper

M Ninkovic, J Maksimovic Zoric, D Vojinovic, L Veljovic, N Jezdimirovic, J Kureljusic, J Zutic

Vet Med - Czech, 2024, 69(12):413-419 | DOI: 10.17221/64/2024-VETMED

Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae are causative agents of the porcine respiratory disease complex. However, information on the prevalence of these pathogens in wild boars is scarce. This study aimed to investigate the presence of antibodies to Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae in wild boars in Serbia. In this study 253 serum samples from wild boars were tested for antibodies to Mycoplasma hyopneumoniae and Actinobacillus pleuropneumonia using the ELISA assay. The overall seroprevalence rates of Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae were 4.2% and 56.9%, respectively. Antibodies to both pathogens were detected in 20 sera samples (7.9%). The prevalence of wild boars that were seropositive for Mycoplasma hyopneumoniae differed with age and ranged from 10.7% to 33.3%, and for Actinobacillus pleuropneumoniae, it ranged from 51.8% to 83.3%. Wild boars are hard to control and are considered a high-risk infection source for outdoor and backyard pigs and eventually for commercial indoor farms as well. Thus, the result of this first serosurvey in Serbia should raise awareness of the importance of wild boars as potential reservoirs of bacterial pathogens such as Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae. Our data revealed the circulation of both pathogens in wild boars in Serbia, drawing attention to the potential health risk they present for domestic swine health.

Effect of the combination of nitrapyrin and gamma-aminobutyric acid on soil nitrogen transformation characteristics and rice yieldOriginal Paper

Furong Xiao, Chen Feng, Dongpo Li, Lili Zhang, Yonghua Li, Yandi Du, Yan Xue, Ping Gong, Yuchao Song, Ke Zhang, Yiji Zhang

Plant Soil Environ., 2024, 70(8):509-522 | DOI: 10.17221/95/2024-PSE

When 2-chloro-6-(trichloromethyl) pyridine (nitrapyrin) is applied alone, it typically does not significantly increase crop yield. Therefore, we combined gamma-aminobutyric acid (GABA) with nitrapyrin to address the limitations of nitrapyrin in enhancing yield. We conducted indoor incubation experiments and pot experiments in Chernozem and Calcic Kastanozem, respectively. The results demonstrated that GABA exerted an influence on the effectiveness of nitrapyrin by altering its degradation rate. In Chernozem, GABA accelerated nitrapyrin degradation, whereas, in Calcic Kastanozem, the results were the opposite. The pot experiment results showed that the combination of nitrapyrin and GABA increased rice total biomass by 5%, grain yield by 18 ± 2%, and plant nitrogen (N) uptake by 9 ± 1% compared to nitrapyrin applied alone. The increase in yield was attributed to the combined effect of nitrapyrin and GABA, which elevated root biomass and leaf area. In contrast, the effect of GABA on yield through altering the degradation rate of nitrapyrin was weaker. Therefore, the combination of nitrapyrin and GABA combined with urea increases rice yields in Chernozem and Calcic Kastanozem. The aim of this endeavour was to foster the development of a novel fertiliser product that offers both favourable agronomic outcomes and environmental benefits.

Effect of tannin degradation of mangrove (Sonneratia alba) fruit on nutrient digestibility, protozoa population and methane gas productionOriginal Paper

Elihasridas Elihasridas, Roni Pazla, Novirman Jamarun, Gusri Yanti, Sharli Asmairicen, Leni Marlina, Maureen Chrisye Hadriatry, Ratna Wylis Arief, Hadriana Bans

Czech J. Anim. Sci., 2024, 69(7):292-301 | DOI: 10.17221/38/2024-CJAS

This study examined the fermentation duration in relation to the effectiveness of tannin levels in mangrove (Sonneratia alba) fruit during the fermentation process using Aspergillus niger. The tested durations were 7, 10, 13, and 16 days in anaerobic conditions. The outcomes measured included crude fat, crude fibre, and nitrogen-free extract digestibility. Microbial biomass, protozoa population, and methane gas production were also recorded as responses to the rumen microbial activity. The results showed that 16 days of fermentation gave the highest average for all responses. The protozoa population reached around 4.07 × 105 cells/ml and methane gas amounted to 33.9 ml/g of dry matter (DM). This is caused by a decrease in the anti-nutrient tannin content in mangrove (S. alba) fruit due to fermentation by A. niger according to treatment. The conclusion of this research is that the 16-day fermentation treatment (T4) of mangrove fruit is the optimal time to be used as a source of concentrate feed for livestock in terms of the increase in nutritional value and gastrointestinal microbes represented by total protozoa population, crude fibre digestibility, crude fat digestibility, and the highest nitrogen-free extract digestibility. However, microbial biomass and methane gas production were not significantly different in this study.

Effect of rosemary and clove essential oils on lipid oxidation, microbial, sensorial properties and storage stability of kavurma, a cooked meat productOriginal Paper

Sezen Harmankaya, Ahmet Harmankaya, Koray ݺbarali, Özlem İstanbullu Paksoy

Czech J. Food Sci., 2024, 42(4):251-262 | DOI: 10.17221/56/2024-CJFS


Kavurma is a traditional cooked meat product of Türkiye containing a high percentage of animal fat (30–40%). Therefore, kavurma can undergo lipid oxidation easily. This may cause a major problem in the storage and marketing of the product. Synthetic additives used in foods cause anxiety in consumers and this situation increases the search for natural alternatives. Plant essential oils can be reliable additives to extend the shelf life of foods. The protective effect of rosemary and clove essential oils on kavurma meat against microbiological and oxidative deterioration was investigated in this study. For this purpose, kavurma samples were divided into five groups after being produced by standard methods, the essential oils (rosemary and clove) obtained by distillation method were added to the kavurma fat in various proportions, alone or in combination. At the end of the study, the thiobarbituric acid-reactive substance (TBARS) and peroxide values of the groups containing plant essential oils were found to be lower than the control groups. The groups containing rosemary and clove essential oil showed that microbiological deterioration was delayed and, the sensory evaluation scores were higher than the control groups at the end of the cold storage period.

Effects of abscisic acid and sodium nitroprusside priming on yield and quality of peanut (Arachis hypogaea L.) under drought stressOriginal Paper

Thanh Thang Tran, Thanh Huong Tran, Trang Viet Bui

Hort. Sci. (Prague), 2024, 51(3):219-227 | DOI: 10.17221/97/2023-HORTSCI

This study tested the impact of priming peanut seeds from the VD01-2 cultivar with either 6 mg/L of abscisic acid or 20 mg/L of sodium nitroprusside to prevent damage from drought stress. Throughout the development of peanuts under drought-stress conditions, various morphological, physiological, and biochemical changes were analyzed. According to the study, it was determined that priming with SNP had a more significant effect than priming with ABA. The use of sodium nitroprusside priming resulted in an improvement in both the yield and quality of peanuts when grown under drought conditions. Furthermore, the findings indicate that the use of sodium nitroprusside priming showed an increase in chlorophyll content, gas exchange capacity, and antioxidant activities while reducing lipid peroxidation.

Potential for monetisation and utilisation of wood raw material from pioneer tree species stands in the Czech RepublicOriginal Paper

Roman Dudík, Petra Palátová, Ale¹ Kùs, David Homolka, Andreas Nikodemus

J. For. Sci., 2025, 71(2):99-111 | DOI: 10.17221/101/2024-JFS

Pioneer tree species in the Czech Republic include birch, alder and aspen. From an economic point of view, birch seems to be the most promising. Greater use of timber from pioneer tree species in higher value-added products is currently limited by the low stocks of birch, alder and aspen in forest stands. A price survey was carried out in the Western Highlands region in the central part of the Czech Republic to obtain basic information on the prices of assortments of pioneer tree species. The prices of five assortments of raw timber were surveyed for the period 2019–2023. Very few of the prices of pioneer tree species were found for assortments of II and IIIC; these assortments are not actually produced and, therefore, not traded by the respondents. For the roundwood assortments (quality II, IIIAB), it cannot be clearly stated that any of the preparatory timber species (birch, alder, aspen) always achieved a higher price during the observed period. Only in 2023 was it possible to see higher prices for quality IIIAB assortments of alder. Birch of quality V had the highest price of the observed prices for this timber assortment for the pioneer tree species during the period under review. When using a system approach, considering the information on the prices of the timber assortments is also important for deciding on the optimal species composition of the regenerating forest stands. In the case of the Czech Republic's commercial tree species, this information is available at the national level. However, the situation is quite the opposite for the timber assortments of pioneer tree species, where information on their prices is completely lacking. This confirms the fact that the market for assortments of timber from pioneer tree species in the Czech Republic is basically non-existent, the main reason being the low volume of these assortments placed on the market.

Assessment of multivariate associations and spatial variability of forest soil properties and their stand factors in the Czech RepublicOriginal Paper

Vincent Oppong Sarkodie, Radim Va¹át, Karel Nìmeèek, Vít ©rámek, Vìra Fadrhonsová, Kateøina Neudertová Hellebrandová, Lubo¹ Borùvka

Soil & Water Res., 2025, 20(1):32-42 | DOI: 10.17221/114/2024-SWR

Knowing the relationship between forest soil properties and their stand conditions is relevant for the sustainable exploitation and management of forest soils. This study examines the influence of stand environmental factors on soil properties within forest environments. We further assessed the spatial variability of these soil properties and their controlling factors. A harmonised soil database on the entire forest areas of the Czech Republic was considered; however, only 851 sampling points with complete data on soil properties was used out of the more than 8 thousand sampling points in the database. The topsoil mineral layer of 0–30 cm was analysed. Principal component analysis was used to determine the relationships between the forest soil properties and their stand controlling factors. The nugget ratios for the semivariograms and cross-variograms were used to evaluate the spatial dependence of soil properties, and their relevant controlling factors. Forest types influence soil reaction and the availability of cations within the topsoils. Phosphorus is influenced by aluminium and cation exchange capacity. There are higher concentrations of total phosphorus and aluminium under broadleaved forest.

The potential of volatiles from Brassica juncea seeds against grey mould agent Botrytis cinerea and their effect on storage and sensory quality of spinach leavesOriginal Paper

Beata Kowalska, Magdalena Szczech, Maria Grzegorzewska, Anna Wrzodak, Kalina Sikorska-Zimny

Plant Protect. Sci., 2025, 61(1):66-76 | DOI: 10.17221/44/2024-PPS

The potential use of volatile compounds released from milled seeds of mustard (Brassica juncea cv. Malopolska) obtained from three different companies was tested in in vitro and in vivo experiments for their inhibitory effect on Botrytis cinerea growth on agar media and its infection on vegetable leaves of cucumber, bean and spinach. In the experiments with spinach, the effect of volatiles from mustards on the storage and sensory quality of fumigated leaves was evaluated. The antifungal effect of the volatiles depended on the source and dosage of mustard seeds and biofumigation time. The most efficient inhibition of B. cinerea mycelium growth on agar media and vegetable leaves was mustard S from SHR company. The development of grey mould on spinach leaves was inhibited in the treatment with 4 h biofumigation with the volatiles from mustard S seeds in experiments conducted at 10 °C and also at 18 °C. In the sensory and storage quality analysis, the spinach leaves treated with volatiles from mustard seeds showed acceptable parameters that predisposed the product to consumption. The results show that it is possible to reduce the incidence of vegetable grey mould with the treatment of milled mustard seeds, opening a potential application of biofumigation in the control of B. cinerea in vegetables.

Application predictive modelling of Penicillium roqueforti germination in environmental conditions in cakeOriginal Paper

Hassan Nakhchian, Farideh Tabatabaee Yazdi, Seyed Ali Mortazavi, Mohebat Mohebi

Czech J. Food Sci., 2025, 43(1):8-16 | DOI: 10.17221/84/2024-CJFS

This study aimed to predict the germination of Penicillium roqueforti as one of the most important moulds in cake in certain environmental conditions that lead to cake spoilage. The germination rate of P. roqueforti was evaluated by culturing in the Yeast Extract Glucose Chloramphenicol Agar medium with different pH, water activity (aw), and inoculum size at three levels of temperature (15, 25, 30 °C) during 60 days by the factorial experiment. The results of analysis of variance (ANOVA) proved that environmental conditions affect germination significantly (P < 0.05). Predictive modelling illustrated that the temperature did not affect germination significantly, while no germination was seen at aw = 0.65. The minimum lag phase of germination was observed at aw = 0.9, pH = 6.5, and inoculum size of 1 000 spores per mL. The logistic model was found to be more precise for fitting the data of P. roqueforti in cakes.

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.

Effects of praziquantel on early life stages of Grass carp, Ctenopharyngodon idellaOriginal Paper

J Velisek, A Strouhova, M Sandova, E Zuskova, P Dvorak, A Stara

Vet Med - Czech, 2025, 70(3):93-100 | DOI: 10.17221/85/2024-VETMED

This study aimed to assess the toxicity of the anthelmintic drug praziquantel in the early life stages of grass carp (Ctenopharyngodon idella). The toxicity was evaluated based on mortality, early ontogeny development, growth, oxidative stress biomarkers, antioxidant enzymes and histopathology. Praziquantel at all tested concentrations (1, 2, 4 and 6 mg/l) showed no significant adverse effects on the hatching of grass carp. Concentrations of 2, 4 and 6 mg/l praziquantel caused significantly (P < 0.01) higher mortality and slower growth compared with controls. Praziquantel at concentrations (4 and 6 mg/l) showed a significant (P < 0.01) delay of early ontogeny of grass carp. Concentration of 2 mg/l praziquantel caused significantly (P < 0.01) higher GST activity than controls. Among the groups, no histological changes were detected in tissues. For the early life of grass carp, praziquantel is safe at concentrations ≤1 mg/l.

Allogeneic adipose MSCs and autologous PRP for chronic non-healing wound in a catCase Report

N Suwan, S Jenjittikul, R Tiratrakoonseree, C Jiradanaipat, S Teerawongsuwan, Wi Phathomrapeepong, W Phanwanich, R Rungsiwiwut

Vet Med - Czech, 2025, 70(4):143-149 | DOI: 10.17221/93/2024-VETMED

Management of chronic non-healing wounds in cats requires a comprehensive approach. This report describes the treatment of a severe open skin wound on the skull using a combined approach involving allogeneic adipose-derived mesenchymal stem cells (MSCs) and autologous platelet-rich plasma (PRP). A 12-year-old neutered male mixed-breed domestic cat presented with a non-healing chronic wound on the skull. The wound extended from the orbital to the occipital area and from the left to the right temporal region. Laboratory test results were positive for feline immunodeficiency virus and impaired kidney function. Sensitivity tests revealed resistance to several antibiotics. Due to limited skin reconstruction options, MSCs were administered subcutaneously at the wound edge once a month for three months. PRP was collected one month after the initial MSC administration and injected at the wound edge monthly between MSC treatments. The wound diameter was measured daily during saline cleaning. The cat received protein-supplemented food daily. Wound healing was observed two weeks after the MSC administration, gradually decreasing in size and closing completely within 5 months. This case demonstrates the successful application of MSCs and PRP for treating chronic wounds in cats.

Crystallinity of starch, food composition, and digestibility of starchReview

Ev¾en ©árka, Petra Smrèková, Marcela Sluková

Czech J. Food Sci., 2025, 43(2):90-104 | DOI: 10.17221/33/2025-CJFS

Starch granules in their native state are insoluble and semi-crystalline. There are three forms of starch/amylopectin in nature: A, B, and C: in cereals (A), tubers and high amylose starches (B), and some varieties of peas and beans (C). Crystallinity and rate of starch hydrolysis depend on the plant species and growing conditions. The changes during food preparation include gelatinisation, the formation of amylose-lipids and amylose-protein complexes, and resistant starch (RS) origin. They are accompanied by changes from crystal to amorphous form and vice versa. Starch in human food is mostly rapidly or slowly digestible. Rapidly digestible starch is formed by gelatinisation, cooking extrusion, breaking down of starch granules, or hydrolysis to maltodextrins. By definition, RS is not digested in the small intestine. This review addresses the influences of biochemical processes in the human body on starch digestibility. It is strongly influenced by the degree of chewing, the activity of α-amylase in the intestine, and transit time through the stomach and small intestine. Resistant starch and endogenous intestinal mucus support the growth of specialist microbes in the large intestine that produce a variety of short-chain fatty acids, causing the perception of satiety, lowering pH, and inhibiting pathogens in the colon.

Stability of soil moisture sensors for agricultural crop cultivationShort Communication

Sitti Nur Faridah, Muhammad Tahir Sapsal, Tisha Aditya A. Jamaluddin, Andini Dani Achmad, Muhammad Adi Surya

Res. Agr. Eng., 2025, 71(2):88-94 | DOI: 10.17221/33/2024-RAE

Soil water content is critical in plants’ morphological and physiological processes; therefore, water must always be available in appropriate quantities to meet plant growth needs. Soil moisture can be easily detected using sensors, which offer a practical solution for monitoring water content in the soil. However, using sensors for a long time, especially on agricultural land, will reduce sensor accuracy. This research aims to investigate the accuracy of soil moisture sensors during their use for cultivating crops. Using sensors in sandy clay soil can detect soil moisture levels with an accuracy of 93.80% and a precision of 90.81%. A reading deviation (error) of up to 49.74% with a precision level of 75.69% occurred when the sensor had been used for 40 days. Regular cleaning and calibration of the sensor are necessary to obtain accurate soil moisture readings. A copper-based sensor module kit can be used to detect soil moisture with reasonable accuracy during plant growth with a 5–6 weeks harvest time.

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.

Growth and resistance response of eleven eggplant cultivars to infection by the Javanese root-knot nematode – Meloidogyne javanica under greenhouse conditionsOriginal Paper

Mostafa Ahmed El-Qurashi, Fahad Al-Yahya, Ali Almasrahi, Adnan Shakeel

Plant Protect. Sci., 2025, 61(3):291-300 | DOI: 10.17221/185/2024-PPS

In Saudi Arabia, root-knot nematodes (RKNs) were found to cause considerable damage to eggplant. These parasites cause significant death of seedlings during nursery production, with infected plants showing the symptoms of chlorosis and wilting, along with the characteristic root galls. Therefore, this work was carried out to find a resistant cultivar of eggplant against RKNs in Saudi Arabia by screening 11 locally available cultivars for two successive seasons. Following Koch's postulates for pathogenicity, RKNs were isolated from infected eggplant, and females were identified morphologically by perineal patterns as Meloidogyne javanica, which was distinguished by clear lateral fields on both sides. Identification was confirmed using two species-specific primers (SCAR), Fjav/Rjav and MjF/MjR, and visualized amplified fragments appeared at 670 bp and 517 bp, respectively. A greenhouse experiment was conducted to screen the cultivars, using five replicates for each cultivar and nematode inoculum (1 000 second-stage juveniles). In response to M. javanica, gall index (GI), egg mass index (EMI), and reproduction factors (RF) were calculated, and all the eggplant cultivars were categorized according to their resistance levels based on RF. Among the 11 eggplant cultivars, four were found resistant to M. javanica including Black Beauty (C5, Bursa Tohum), Melanzana Violetta Difirenze (C6, Zorzi), Melanzana Violetta Lung 2 (C7, Zorzi), and Long Purple (C9, Bursa Tohum) and Violetta Lung 3 (C8, Taj Agri) was found highly resistant. Moreover, two cultivars were found moderately resistant, two susceptible, and two susceptible to M. javanica infection. Therefore, this study provided valuable information to eggplant growers about the resistant cultivars in Saudi Arabia. However, the molecular mechanisms of this resistance need to be evaluated to find novel candidate genes for breeding and CRISPR-Cas9-based gene editing programs.

Effects of PEG-simulated drought stress and selenite treatment on mineral nutrient homeostasis in wheat roots and shootsOriginal Paper

Feiyan Yu, Ying Wang, Xue Luo, Kaiwei Li, Jingwen Hou, Gaogao Dai, Huimin Yuan, Lianhe Zhang

Plant Soil Environ., 2025, 71(9):614-620 | DOI: 10.17221/300/2025-PSE

Drought stress severely impairs seed germination and early seedling establishment, and disrupts the uptake and distribution of essential mineral nutrients in plants. This study investigated the effects of polyethylene glycol (PEG)-simulated drought and Na2SeO3 application on the accumulation and redistribution of phosphorus (P), potassium (K), calcium (Ca), sulphur (S), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn) in wheat roots and shoots. Under PEG-simulated drought, increasing PEG concentrations resulted in a progressive decline in nutrient concentrations in both roots and shoots, with significant reductions in K, Ca, S, Zn, and Mn in roots, and K, Ca, Mg, and Mn in shoots. However, Na2SeO3 application mitigated these adverse effects by enhancing nutrient redistribution during early seedling growth. Specifically, under 15% PEG-simulated drought stress, Na2SeO3 treatments significantly increased shoot K, Mg, Fe, and Cu concentrations, highlighting selenium’s role in facilitating the translocation of these key elements. These results demonstrate that Na2SeO3 effectively mitigates drought-related nutrient imbalances and promotes ion remobilisation from germinating seeds to developing roots and shoots under water-deficient conditions.

Prevalence of lumbosacral transitional vertebrae and association with hip dysplasia in Rhodesian Ridgebacks in GermanyOriginal Paper

SK Slunsky, P Slunsky, E Fort, L Brunnberg

Vet Med - Czech, 2025, 70(10):369-378 | DOI: 10.17221/30/2025-VETMED

Congenital anomalies affecting the spinal column are frequently observed in certain dog breeds. One such condition occurs at the junction between the lower back and the sacrum, where vertebrae exhibit mixed structural characteristics. This retrospective study analysed imaging records of Rhodesian Ridgebacks collected over 28 years, selecting only those that met strict positioning standards for evaluation. A total of 2 012 cases were analysed using established classification methods, identifying three distinct structural variations: a typical junction, a bilaterally altered morphology, and an asymmetrical form affecting one side. The prevalence of these variations was 7.4%, with symmetrical alterations found in 5% of cases and asymmetrical alterations in 2.4%. Statistical analysis did not reveal a significant association between these anatomical variations and canine hip dysplasia (CHD) (P = 0.170 0). These findings support previous research indicating that there is no direct link between these structural variations and joint disorders in this breed. The study represents the most extensive investigation of its kind in this canine population, highlighting that such vertebral variations are frequently observed in routine radiographic screenings, but despite decades of research, consistent clinical correlations remain elusive – underscoring the need for further systematic investigation.

Comparison of different modeling approaches to estimate cardinal temperatures for germination of Persicaria lapathifolia, Polygonum aviculare and Solanum nigrumOriginal Paper

Donato Loddo, Stefano Carlesi, Neboj¹a Nikoliæ, Roberta Masin

Plant Protect. Sci., 2025, 61(4):378-386 | DOI: 10.17221/175/2024-PPS


Emergence predictive models can facilitate weed management, but estimating cardinal temperatures for germination of target species is necessary. Germination tests at a range of alternating temperatures from 12.5/2.5 °C to 35/25 °C were conducted to estimate cardinal temperatures of Persicaria lapathifolia (L.) Delarbre, Polygonum aviculare L. and Solanum nigrum L. Two statistical methodologies were tested: the Thermal time-to-event model (TTEM) and the Threshold limit model (TL). Germination of P. aviculare was maximum at low-mid temperatures, where its optimal range probably lies, and decreased at high temperatures. No differences were observed between the base (Tb) values estimated for this species with the two models (TTEM 3.5 °C, TL 4.1 °C), while a significantly higher ceiling (Tc) value was determined with TTEM (TTEM 41.5 °C, TL 33.6 °C). The Germination of P. lapathifolia and S. nigrum increased monotonically with the rise in temperature, indicating that their optimal temperature lies above the highest tested temperature. TTEM could not be applied to these species since it requires data from the supra-optimal thermal range. TL models could instead estimate Tb values (9.4 °C and 15.4 °C for P. lapathifolia and S. nigrum), while the lack of data in the supra-optimal thermal range impeded the estimation of Tc. actual and predicted PFAs affecting concurrently all species were caused by the thermal conditions of the year.

A review of research on hybrid unmanned vehicles in complex forest and grassland terrainsReview

Peng Wang, Kangkang Pan, Jun Yuan, Sipu Pan, Yujin Yang

J. For. Sci., 2025, 71(11):525-541 | DOI: 10.17221/65/2025-JFS

The sustainable management of European forest ecosystems necessitates innovative mechanisation solutions to address operational challenges in hilly, mountainous, and ecologically sensitive terrains. Hybrid-drive unmanned vehicles (HDUVs) present a transformative potential by integrating fuel-electric powertrains with autonomous navigation systems, enabling energy-efficient operations with minimal environmental impact. This review synthesises and critically analyses advancements in three critical domains: (i) dynamic modelling and chassis design for enhanced terrain adaptability, (ii) hybrid powertrain optimisation for reduced emissions and extended operational range, and (iii) the integration of unmanned systems for precision forestry tasks. By examining multi-body dynamics, power management strategies, and AI-driven navigation algorithms, we elucidate the role of HDUVs in improving operational efficiency while mitigating soil disturbance and carbon footprint. The review identifies prevailing research gaps and suggests that future work should prioritise the development of standardised testing protocols and foster cross-disciplinary collaboration to align HDUV development with EU biodiversity and climate objectives.

Nonlinear effects of bank loans on county agrifood SMEs innovation: Empirical evidence from ChinaOriginal Paper

Xi Chen, Kai Wang, Lirong Xing, Jianzhen Lu

Agric. Econ. - Czech, 2025, 71(11):604-617 | DOI: 10.17221/324/2024-AGRICECON

Innovation is the driver of sustainable business development and is essential to promote high quality econo-mic development in the country. Are more bank loans better for small and medium-sized enterprises (SMEs) innovation? Therefore, based on mixed cross-sectional data of county sweet potato processing enterprises, this study applied the econometric model to explore the impact of bank loans on county agrifood SMEs innovation. We find that there is an 'inverted U-shaped' relationship between bank loans and county agrifood SMEs innovation. The analysis of the mechanism shows that bank loans can not only alleviate the problem of innovation financing constraints for agrifood SMEs, but also provide financial support for the innovation activities of agrifood SMEs as a result of trade openness. This study has important practical implications for promoting county agrifood SMEs innovation in China and promoting high-quality county economic development.

The combined application of Bacillus velezensis BCP6 and Jinggangmycin (JGM) to control soft rot caused by Pectobacterium aroidearum on Amorphophallus konjacOriginal Paper

Mengjia Zhu, Siyuan Ren, Changlong Chen, Yu Tian, Zhijian Long, Zhiqiang Lin, Hua Xie, Ying Cao

Plant Protect. Sci., 2024, 60(1):41-52 | DOI: 10.17221/77/2023-PPS

Amorphophallus spp. is an important group of crop and medicinal plants, but it is susceptible to infection by soft rot disease during both field growth and storage stages. This results in huge economic and yield losses, which must be properly addressed. Combined applications of Biological Control Agents (BCAs) and compatible chemicals have been recently considered as a more effective and reliable method to control bacterial soft rot. In the present study, we investigated the control effects against soft rot pathogenic bacteria Pectobacterium aroidearum MY11, using a BCA strain (i.e. Bacillus velezensis BCP6) and screening for three different bactericides, i.e. Jinggangmycin (JGM), Thiodiazole copper and Qingkulike. After exploring a joint application of BCP6 with chemicals, we found that JGM was the most effective and compatible bactericide to be compounded with BCP6. First, in the in vitro experiment, the mixture of JGM (34 mg/L) and suspension of BCP6 (1.0 × 108 cfu/mL) at 4:6 volume ratio performed with the strongest inhibitory effect on P. aroidearum MY11 (53.40%) and synergistic effect (1.78); this combination also significantly increased the biofilm production by BCP6, and constrained the swimming motility of P. aroidearum MY11 in agar plates and inhibited activities of cell wall-degrading enzymes. Second, the combined application of JGM and BPC6 reached up to 95.81% of control efficacy against P. aroidearum MY11 in a greenhouse experiment, and compared to JGM or BCP6 alone, combined application effectively increased konjac plant resistance to soft rot in the field, showing a synergistic action. Collectively, these results provided an alternative method for the management of soft rot disease in konjac planting.

Soil organic carbon and its labile fractions in the conditions of water erosion on arable land of Chernozems areaOriginal Paper

Erika Balontayová, Viera Petlu¹ová, Peter Petlu¹, Juraj Hre¹ko, ©tefan Koco

Soil & Water Res., 2024, 19(2):90-99 | DOI: 10.17221/3/2024-SWR

The depletion of organic carbon in the topsoil and the reduction of the humic horizon leads to a decrease in soil productivity. This study focussed on evaluating the influence of water erosion on the quantity and quality of organic carbon (OC) in the topsoil. The determination of the differences in the OC with dependence on the soil thickness and the role of the soil texture in a depletion of OC in the humic horizon and its labile fractions were studied in four arable land localities (Haplic Chernozem, HC; Eutric Regosol, ER). The following carbon parameters were included: total organic carbon (TOC), labile carbon oxidisable by KMnO4 (CL), cold and hot water-extractable organic carbons (CWEOCs) and (HWEOCs), respectively. The higher the soil thickness was, the higher the OC contents were at a depth of up to 0.1 m (TOC; r =0.387, P < 0.01; CL; r = 0.266, P < 0.01), which indicates a more pronounced organic and mineral material washing off. This process was more pronounced on the texturally finer HC than the coarser ER soil. In the case of water-extractable organic carbon (WEOC), the vertical movement was dominant, while in the case of CL, the horizontal one was dominant. In the case of erosion, the spatial variability of the OC is not only the result of the erosion-accumulation activities, but also from the proportion of the OC forms. The erosion significantly interferes in the stabilisation mechanisms of organic substances, and even also influences one of the strongest factors – the soil texture.

Sixty-year anniversary of the journal Plant Protection ScienceReview

Ale¹ Lebeda, Vìra Kroftová, Radovan Pokorný

Plant Protect. Sci., 2024, 60(4):311-327 | DOI: 10.17221/182/2024-PPS

In 2024, the journal Plant Protection Science (PPS) completes 60 years of publication (1965–2024). Its roots extend back to the year 1921. In recent years, PPS has developed into an international scientific journal focused on all aspects of plant protection science, published exclusively in English, and with an international editorial board. The publisher is the Czech Academy of Agricultural Sciences (CAAS), celebrating its 100th anniversary (1924–2024). PPS is one of eleven agricultural journals published by CAAS. On its 50th anniversary, PPS published a detailed overview of its history and development. This latest critical review summarises developments during the last ten years; however, in special cases, also with a longer-term perspective. During the last decade, PPS has made impressive progress and is now among the world's key scientific journals. Recently, the journal has been added to the indexing and abstracts of many international databases, e.g. BIOSIS Previews, SCOPUS and Web of Science. In 2014, PPS had an impact factor of 0.597, but during the last few years, PPS's IF has ranged between 1.3 and 1.4 (for 2023, IF = 1.7), with the possibility of further increase. Each year, PPS is published quarterly, with a total of around 40 papers (original papers, reviews, short communications, biographical notices, and book reviews). Per year, about 70–80% of papers by authors/co-authors from abroad are published (Europe, America, Asia, Australia and Oceania). In the final part of this presentation, we describe some recent achievements and discuss key topics related to PPS's future development.

Comprehensive comparative study of Chiari-like malformation in veterinary and human medicineReview

JH Jung, H Park, WS Kim, HY Yoon

Vet Med - Czech, 2024, 69(7):217-233 | DOI: 10.17221/125/2023-VETMED

This review aims to enrich our understanding of Chiari-like malformation (CLM) by combining human and veterinary insights, and providing a detailed cross-species overview. CLM is a developmental abnormality characterised by caudal displacement of the hindbrain into the foramen magnum due to an entire brain parenchymal shift caused by insufficient skull volume. This malformation leads to a progressive obstruction at the craniocervical junction, which disrupts the normal cerebrospinal fluid flow, leading to secondary syringomyelia. The clinical signs of CLM and syringomyelia include phantom scratching, head tilt, head tremor, ataxia, tetraparesis, pain, muscle atrophy, and scoliosis or torticollis. Magnetic resonance imaging remains the gold standard for diagnosing CLM, since it allows the visualisation of abnormal findings such as the caudal cerebellar herniation, caudal cerebellar compression from occipital dysplasia, and attenuated cerebrospinal fluid cisternae. Although various medical and surgical interventions, including foramen magnum decompression, can provide temporary symptomatic/clinical sign relief, current literature shows a lack of sustained long-term efficacy. Therefore, additional research is needed to evaluate the long-term effects of existing treatment strategies and to compare different techniques utilised in conjunction with foramen magnum decompression.

Overstorey leaf production and emergence of sassafras saplings in a southwest Missouri oak woodland: An analysis based upon long-term effects of fireOriginal Paper

Sanjeev Sharma, Alexander Wait, Puskar Khanal

J. For. Sci., 2024, 70(8):407-419 | DOI: 10.17221/8/2024-JFS


Missouri Ozark woodlands are a unique, but imperilled ecosystem type due to fragmentation, lack of proper management and a changing climate. The management, restoration, and conservation of Ozark woodlands is a conservation priority. The Ozark woodlands contribute to the sequestration of carbon and nutrients through their robust productivity, effectively removing carbon dioxide from the atmosphere and storing it in the biomass and soil while cycling essential nutrients to support the ecosystem's health and vitality. We have assessed the over- and mid-storey leaf production, collecting leaves in baskets every autumn in a 1 200-ha conservation area in southwest Missouri since 2000. The leaf production data from 2000 to 2021 were compared among sites; control (not burnt for over 80 years), burnt (fire resumed in March of 1999 and repeated in 2001, 2003, 2008, 2010, 2013, and 2021) and reference (fire resumed in 1980 and repeated every 2 years). The average oak leaf production was statistically higher in the burnt site than the reference site, but only marginally higher than the control site. The leaf production varies statistically between the years. We applied a regression analysis among the productivity, temperature, and precipitation to associate the temporal variability in the weather with the productivity. The reference woodland showed statistical significance with the precipitation, but not with the temperature, while the other sites did not show any statistical significance with the precipitation. No statistically significance difference was observed between the productivity and temperature across any of the woodland burn histories. The March–June, March–May, and June–August precipitation statistically predicted the productivity. The results indicate that long-term burning is predictably associated with woodland leaf production and precipitation, but the precipitation is uncoupled with the productivity in woodlands that were more recently burnt or where burning has been suppressed. Sassafras saplings of approximately 1 m in height have emerged as the dominant species in the understorey of burnt woodlands while being completely absent from the control and reference woodlands. However, the productivity is the highest in the woodlands where burning has been suppressed and 20 years of prescribed fire does not significantly reduce the productivity. Oak regeneration over 20 years of burning is being suppressed by competition with sassafras, which may result in a significant shift in the ecosystem variables.

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