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Results 541 to 570 of 2032:
Optimisation of the irrigation requirement of okra under protected cultivation using a digital lysimeterOriginal PaperSujitha Elango, Nagarajan Madasamy, Valliammai Annamalai, Vijayaprabhakar ArumugamRes. Agr. Eng., 2025, 71(4):200-212 | DOI: 10.17221/31/2025-RAE
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How economic policy uncertainty affect the scale-up of hog breeding in China?Original PaperChunlei Li, Tao Feng, Gangyi Wang, Amètépé Nathanaël Beauclair AnaniAgric. Econ. - Czech, 2025, 71(4):203-217 | DOI: 10.17221/8/2024-AGRICECON In recent years, China has promoted large-scale hog farming through various approaches. However, this scale-up process may be affected by economic policy uncertainty. This paper empirically examines the impact of policy uncertainty on hog farming scale-up using provincial panel data from 2016–2022 and a fixed-effects model. Our results indicate that economic policy uncertainty significantly inhibits hog farming scale-up, and this effect remains significant even when we increase the criteria for recognising scale-up, alternative estimation methods include two-stage least squares (2SLS), dynamic panel model and panel Poisson model. Mechanism analysis reveals that economic policy uncertainty not only exacerbates the impact of labour and capital factor prices on scale-up hog farming but also exacerbates the volatility of hog prices, which further raises the risks faced by hog farming and inhibits scale-up hog farming. Heterogeneity analysis reveals that the effect of economic policy uncertainty on hog farming scale-up decreases as farm size increases. Higher-level economic policy uncertainty can inhibit scale-up hog farming, while lower-level economic policy uncertainty can instead promote scale-up hog farming. Economic policy uncertainty has a more obvious inhibitory effect on scale-up hog farming in major development areas. These findings have important implications for the promotion of large-scale hog farming and related policy regulation. |
Genetic diversity and population structure of a Creole sheep flock from UruguayOriginal PaperBeatriz Carracelas, Pablo Peraza, Brenda Vera, Silvia Llambi, Gabriel CiappesoniCzech J. Anim. Sci., 2025, 70(5):173-182 | DOI: 10.17221/93/2024-CJAS
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Changes in volatile organic compounds (VOCs) content in resistant and non-resistant forest trees in response to bark beetle attackOriginal PaperPetr Soudek, Jan Rezek, Kateøina Mo»ková, ©árka Petrová, Pavlína Máchová, Adam Véle, Martin Fulín, Petr Ho¹ekJ. For. Sci., 2025, 71(5):218-236 | DOI: 10.17221/4/2025-JFS Corrigendum in: J. For. Sci. 2026 Feb 27;72(2):106. doi: 10.17221/16/2026-JFS |
Uveodermatological syndrome in dogs: A review of diagnosis, management, and ophthalmic patient needsReviewP Zubricky, A Balicka, Z Drahovska, M Lapsanska, A TrbolovaVet Med - Czech, 2025, 70(6):185-195 | DOI: 10.17221/10/2025-VETMED Uveodermatological syndrome is a widely recognised disease that continues to raise significant concern among both veterinarians and pet owners. Its aetiology, although still unclear, is believed to involve an autoimmune origin and genetic predisposition. The most common clinical signs include skin depigmentation, alopecia, poliosis, and, most frequently, granulomatous panuveitis. Affected dogs often develop secondary complications owing to persistent intraocular inflammation, such as cataracts and glaucoma. Although immunosuppressive therapy often yields a favourable response, recurrence is commonly observed. In some cases, uveodermatological syndrome presents a clinical challenge, as patients may experience adverse effects from medications, without which irreversible blindness may ensue. |
Effects of benzalkonium chloride adaptation on controlling Listeria monocytogenes biofilms and its growth in foodOriginal PaperHonghui Wang, Yamin Ren, Yanhong Tang, Mingyu Zhang, Xiaoli ZouCzech J. Food Sci., 2025, 43(3):216-225 | DOI: 10.17221/40/2025-CJFS In this study the eradication effectiveness of four commonly used disinfectants against benzalkonium chloride (BC) adapted and non-adapted biofilms of Listeria monocytogenes was compared and the effects of food preservatives on the growth of these strains were comparatively evaluated on pasteurised chicken sausage. After BC adaptation, the minimum inhibitory concentrations (MICs) of BC against planktonic bacteria of L. monocytogenes increased, while the MICs of chlorine dioxide remained unchanged. BC adapted strains showed stronger biofilm formation than the wild-type parents. When used at 1 × MIC, the eradication rates of chlorine dioxide on biofilm biomass, cell viability and biofilm extracellular polymeric substance were higher than BC. When used at the recommended concentrations, chlorine dioxide exhibited the highest efficiency in BC adapted and non-adapted biofilm eradication. Among the four food preservatives, nisin showed the highest inhibition of both BC adapted and non-adapted strains grown on pasteurised chicken sausage. Our data suggest that proper use of BC is required to reduce the exposure of L. monocytogenes to sublethal concentrations of BC and the emergence of BC adapted strains. |
Evidence and characterisation of Xanthomonas arboricola pv. juglandis causing bacterial blight of walnut in MontenegroOriginal PaperJelena Latinoviæ, Nedeljko Latinoviæ, Bogoljub Kandiæ, Aleksandra Jelu¹iæ, Tatjana Popoviæ MilovanoviæPlant Protect. Sci., 2025, 61(3):255-261 | DOI: 10.17221/196/2024-PPS This study represents the first evidence of the bacterial blight caused by Xanthomonas arboricola pv. juglandis (Xaj) on walnut trees in Podgorica (Montenegro). Disease symptoms appeared on leaves in the form of dark, angular leaf spots surrounded by yellow-green haloes and lesions spread across the whole leaf. Isolated bacteria were preliminarily identified using PCR with pathovar-specific primer pair XajF/XajR and further characterised based on multi-locus sequence analysis with nine housekeeping genes (fusA, gapA, gltA, gyrB1, lepA, rpoD, dnaK, fyuA, and gyrB2). Montenegrin walnut isolates were homogeneous among themselves and the most closely related to different X. arboricola strains originating from Juglans regia isolated elsewhere. The pathogenicity of isolates was confirmed on walnut leaves, fruits, and branches. All inoculations resulted in the formation of necrotic lesions that initially developed at the site of bacteria entry, with later developing chlorotic areas on leaves along the leaf veins. This finding of Xaj causing leaf blight symptoms on walnuts in Montenegro highlights its expanding distribution across Europe and indicates a potential threat to walnut plantations in Montenegro. |
Effect of dehulled lupin seed meal in feed mixture on muscle fat quality of Cherry Valley ducksOriginal PaperEva Straková, Lucie V¹etièková, Pavel Suchý, Martin Kutlva¹rCzech J. Anim. Sci., 2025, 70(7):276-285 | DOI: 10.17221/76/2025-CJAS
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Genome-wide identification and in silico expression analysis of CCO gene family in Citrus sinensis (orange) in response to citrus greeningOriginal PaperSadaf Sarwar, Muhammad Shafiq, Layba Tasawar, Iram Gull, Jannat Akram, Maha Al-Roshdi, Gabrijel Ondrasek, Muhammad Shafiq ShahidCzech J. Genet. Plant Breed., 2025, 61(3):113-127 | DOI: 10.17221/11/2025-CJGPB Citrus sinensis (L.) Osbeck (sweet orange) is the most important cultivated citrus fruit in the world. However, Hanglongbing (HLB) disease, caused by Candidatus Liberibactor asiaticus (CLAs), poses a major threat to sweet orange production, by hindering colour, quality and export. Carotenoid cleavage oxygenases (CCOs), which include carotenoid cleavage dioxygenases (CCDs) and 9-cis-epoxycarotenoid dioxygenases (NCEDs), are essential for plant growth, development, and adaptation to phytohormonal, biotic, and abiotic stresses. This study identified 14 CsCCO genes in C. sinensis. Structural and conservation studies were conducted using gene structure and conserved domain analysis. Genomic localisation, gene duplication, and similarity among these genes were also examined. Gene ontology analysis predicted that CsCCOs could be involved in the carotene catabolic process. Analysis of cis-regulatory elements revealed that most CsCCO genes are involved in responses to stress, light signalling, and plant growth regulation. Genes in the 9-cis-epoxycarotenoid dioxygenase (NCED) subgroup are predominantly localised in chloroplasts, whereas genes in other subgroups are primarily found in the cytoplasm. All 13 of the CsCCOs genes identified were regulated by 25 microRNAs, indicating the crucial role of microRNAs in gene regulation in Citrus sinensis. The expression patterns of CsCCO genes in response to biotic and abiotic stress were studied. Transcriptome analysis demonstrated that CsNCED3 and CsNCED10 were up-regulated in response to HLB. This provides insight into the function of CCO genes in C. sinensis and identifies potential candidate genes for combating citrus greening. |
Effect of different heat treatments on physicochemical properties and antioxidant characteristics of black beansOriginal PaperXiaolong Ji, Shuli Zhang, Xin Du, Yuning Zhang, Yang Yao, Yingying ZhuCzech J. Food Sci., 2025, 43(4):300-310 | DOI: 10.17221/144/2024-CJFS
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Chlorhexidine dihydrochloride's effect on clinical, veterinary and food-origin Staphylococcus aureusOriginal PaperMarta ©tindlová, Václav Peroutka, Simona Lencová, Kamila ZdeòkováCzech J. Food Sci., 2025, 43(5):326-335 | DOI: 10.17221/201/2024-CJFS Chlorhexidine (CHX) is a bactericidal agent used as a common disinfectant since the 1950s. However, its effectiveness may have diminished over the time due to the rise of microbial resistance even among nonantibiotics. In this study, we evaluate the response of 46 Staphylococcus aureus isolates to CHXdihydrochloride according to their origin and phenotype (haemolysis induction, coagulase production, methicillin resistance and biofilm formation). Following classification, the influence of seven CHX concentrations (10.00–0.50 mg·L–1) on planktonic cell growth and biofilm formation was evaluated spectrophotometrically at 620 nm and 595 nm (24 h). Even though the effect of CHX was strain-specific irrespective of origin or phenotypic profile, concentrations above 2.50 mg·L–1 were almost uniformly determined as bactericidal. Although the non-bactericidal concentrations did not indicate any statistically significant differences, they did promote biofilm formation in some cases. Overall, our results suggest that CHX is still an effective disinfectant and an antimicrobial agent against S. aureus. |
Effect of abscisic acid and epibrassinolide on physiological and hormonal responses of tomato plants subjected to water stressOriginal PaperJaromir Janousek, Zuzana Kovalikova, Alena Gaudinová, Jozef Lacek, Jiri TumaPlant Soil Environ., 2025, 71(9):638-649 | DOI: 10.17221/151/2025-PSE In this study, the effect of abscisic acid (ABA; 150 μmol) or epibrassinolide (EBL, 3 μmol) in mitigating the adverse drought conditions was evaluated in tomato plants (Solanum lycopersicum L. cv. Vilma). Potted plants were subjected to two 6-day periods separated by a one-time rehydration. Results showed that water deficit increased the content of superoxide radical (O2•−), malondialdehyde (MDA), proline, ABA and its metabolites. On the other hand, the studied cytokinins showed a rather opposite trend. ABA application maintained and later reduced the O2•− content. At the same time, the MDA level was lower but later increased, while the proline content was reduced compared to untreated plants. This indicates that ABA helps the plants cope with the initial stress phase. In addition, ABA-activated signalling pathways showed increased levels of ABA, auxins, salicylic acid or jasmonic acid. EBL even more increased O2•− and proline content. At the same time, EBL increased the content of auxins, jasmonic acid and later ABA. In contrast, a decrease in salicylic acid and cytokinins was monitored. These findings indicate that ABA contributed to improved stress responses through early phytohormone-mediated signalling and reduction of stress markers, whereas EBL appeared less effective under our experimental conditions. |
Blastocystis first detected in Sciurus vulgaris and Sciurus vulgaris exalbidus in Chengdu, ChinaOriginal PaperX Li, H Huang, Y Liu, W Meng, Z Zhong, Z Zhou, G Peng, J Han, H LiuVet Med - Czech, 2025, 70(9):329-334 | DOI: 10.17221/71/2024-VETMED The anaerobic unicellular protist Blastocystis is widely recognised for its presence in the gastrointestinal systems of humans and various animals globally. However, there is a paucity of reports on the prevalence and subtype (ST) distribution of Blastocystis in the squirrel population. This study was conducted to determine the prevalence and genetic diversity of Blastocystis, as well as its zoonotic potential, among Sciurus vulgaris and Sciurus vulgaris exalbidus in Chengdu, China. A total of 41 faecal samples (31 from Sciurus vulgaris, 10 from Sciurus vulgaris exalbidus) were analysed for the presence of Blastocystis sp. using the polymerase chain reaction (PCR) amplification of the small subunit ribosomal RNA (SSU rRNA) gene. Our findings revealed a positive rate of 4.88% (2/41 samples) for Blastocystis sp., with both identified as ST4 through nucleotide sequence homology and phylogenetic analysis. Given the zoonotic nature of this subtype, farmed squirrels may serve as potential reservoirs for Blastocystis transmission to humans and domestic animals. These findings are essential for developing effective control strategies against Blastocystis in the study region and enhancing our comprehension of the genetic spectrum of Blastocystis within Sciurus vulgaris and Sciurus vulgaris exalbidus. |
Using thermal time to predict the timing of flight activity in Noctuidae (Lepidoptera) species: Calculation and verification of forecast methodsOriginal PaperAlois Honìk, Zdenka Martinková, Ivo Novák, Terezia Jauschová, Lenka Sarva¹ová, Miroslav Saniga, Milada Holecová, Ján Kulfan, Peter ZachPlant Protect. Sci., 2025, 61(4):366-377 | DOI: 10.17221/150/2024-PPS
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Coagulation profile in bitches with pyometra: Standard tests and thromboelastographyOriginal PaperA Ramesova, K Machackova, I Vanova, M Lacinova, A Bartoskova, R Novotny, R Vitasek, K Rehakova, J DoubekVet Med - Czech, 2025, 70(11):408-416 | DOI: 10.17221/16/2025-VETMED This study aimed to determine coagulation changes in bitches with pyometra based on a series of coagulation tests and thromboelastography (TEG), and to assess the incidence of disseminated intravascular coagulation (DIC). Eighteen bitches with pyometra and thirty-four control bitches were examined. Haematological, biochemical, and following haemostasis parameters were measured, including: prothrombin time (PT), activated partial thromboplastin time (aPTT), antithrombin activity (AT), and levels of fibrinogen (FBG), d-dimers (DD), tissue factor (TF), plasminogen (PLG), tissue plasminogen activator inhibitor 1 (TPAI-1), and thromboelastography. DIC was considered present if three or more of these parameters were abnormal: platelet count (<153 × 109/l), PT (>8.1 s), aPTT (>25.5 s), FBG (<0.6 g/l), DD (>0.2 mg/l), and AT (<107%). Significant differences were found in the PT, aPTT, FBG, DD, TPAI-1, clotting time, α-angle, and maximal amplitude. According to our scoring system, two patients were DIC positive. The study found alterations in several coagulation tests and hypercoagulable TEG tracings in bitches with pyometra, which point to excessive activation of coagulation, delayed fibrinolysis, and the presence of DIC. No patient bled abnormally, which may suggest that DIC is not overt in the majority of pyometra patients. |
Impact of puerperal disorders on early culling and milk production in Slovak Spotted dairy cowsOriginal PaperKarolína Pále¹ová, Jozef Bujko, Nina Moravèíková, Hana Vostrá-Vydrová, Adrián Halvoník, Lubo¹ Vostrý, Radovan KasardaCzech J. Anim. Sci., 2025, 70(12):528-537 | DOI: 10.17221/122/2025-CJAS
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Effects of application of biostimulants and growth regulators on root traits and analysis of root architecture with machine learning in LiliumOriginal PaperÖmer SariHort. Sci. (Prague), 2025, 52(4):313-323 | DOI: 10.17221/100/2024-HORTSCI Apart from the roots, the bulb is the most important organ for plant development of the lily plant. In this experiment, the effects of mycorrhizal, vermicompost and promalin applications on the root architecture of Lilium oriental hybrid ‘Adelante’, a bulbous plant, were to be investigated. It was found that the effect of the treatments on root length (128.6 cm), root surface area (8 cm3), number of tips (111.5), number of forks (354.4) and number of crossings (86.2) was lower than that of the control. In terms of root volume, the applications of vermicompost (3 cm2) and promalin (3 cm3) were the most effective. The most effective application on root diameter (3.5 mm) was promalin. In conclusion, the effect on mycorrhizal root development was lower than the control but higher than other applications. In addition, machine learning (ML) algorithms, including linear regression (LR), sequential minimal optimisation for regression (SMOreg), Gaussian process (GP) and artificial neural network-based multilayer perceptron (ANN-based MLP), were used in the study. The input variables were evaluated for modelling and predicting root traits. The performance values of the ML algorithms were noted in the following order: LR > SMOreg > GP > MLP. These results have important implications for the prediction of root growth in lily crops. |
Effect of pine afforestation on soil physicochemical properties compared to pasture land: A case study in KosovoOriginal PaperBetim Bresilla, Muhamet Zogaj, Tamás András Szegi, Bekri Xhemali, Gazmend Gjinovci, Florentina Racaj, Zenun HusajJ. For. Sci., 2025, 71(12):589-598 | DOI: 10.17221/73/2025-JFS This study investigates the long-term effects of pine (Pinus nigra) afforestation on soil characteristics in comparison to adjacent pastureland in central Kosovo. Soil samples (n = 24) were collected from two land-use types, pine plantations and grassland, over three topographic positions (lower, medium, upper) and two depths (0–10 cm and 10–20 cm). Standard laboratory techniques were used to determine soil organic matter (SOM), organic carbon (SOC), total nitrogen (TN), pH (H2O and CaCl2), available phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and bulk density (BD). The data were analysed using principal component analysis (PCA) and correlation matrices. The top soils (0–10 cm) beneath pine had higher soil organic matter (mean 2.45%) compared to the pasture lane (1.59%). The SOC and TN levels increased by 43% and 36%, respectively. Soil pH was lower under pine (mean pH_H2O = 6.3) than under pasture land (pH_H2O = 6.81), particularly on middle and lower slopes. Exchangeable calcium and magnesium declined by up to 20% under pine plantations, and bulk density also decreased (for example, 1.15 g·cm–3 under pine land compared to 1.29 g·cm–3 under pasture land), signifying reduced compaction. Phosphorus concentrations were slightly higher under pasture at a depth of 0–10 cm (mean 12.4 mg·100 g–1), but under pine, they increased at a depth of 10–20 cm on top slopes. PCA showed differentiation based on land use, with the initial two components representing 70.1% of the overall variance. |
Indebtedness of small and medium-sized wineries in SlovakiaOriginal PaperJana Ladvenicová, Dominika Èeryová, Iveta Ko¹ovská, Jozef Palkoviè, Matej Èere¹Agric. Econ. - Czech, 2025, 71(1):27-45 | DOI: 10.17221/31/2024-AGRICECON Many companies depend on debt sources; they use them to finance their needs. Bank loans are the main debt sources to which companies have access. However, financing only with this source is associated with many risks. The paper’s main goal is to assess and quantify the indebtedness of wineries in Slovakia for 2013–2021 through individual debt ratios. The influence of financial leverage on return on equity (ROE) was tested. The data were drawn from the Register of Financial Statements. From the point of view of the total debt ratio, wineries show values higher than 65%. The presence of short-term debts, especially short-term liabilities, prevailed. The average share of equity reached a very low value of 11%. The average share of bank loans on financing operating activities was very low at the level of 8.53%. The return on assets (ROA) was lower than the cost of debt in most wineries, which means that increasing indebtedness had a negative effect on ROE. |
Fractal parameters of soil particle size distribution in karst area, and implications of soil water repellency by plantationsOriginal PaperZhuo Tian, Haitao Deng, Shuaipu Zhang, Qinxue Xu, Xin JinSoil & Water Res., 2025, 20(2):93-104 | DOI: 10.17221/84/2024-SWR As a critical and universal soil physical property, soil water repellency significantly affects soil and water erosion and vegetation restoration, particularly in the karst region. This study analysed soil properties, namely, particle size distribution (PSD) in abandoned farmland and different plantations in karst areas, and their impact on water repellency to provide references for its ecological restoration. First, for the shaddock plantation, citrus plantation, ginkgo plantation, Robinia pseudoacacia plantation, and abandoned farmland, the research objects, soil particle size and water drop penetration time were measured, and the fractal parameters of soil PSD were computed. Soil PSD characteristics’ influence on water repellency was inferred according to, for example, correlation, redundancy, and stepwise regression analyses. Sand content in the shaddock plantation and clay content in the citrus plantation was the highest. The soil particles of abandoned farmland and plantations were primarily sand. The values of volume dimension D(0) in descending order were citrus plantation, shaddock plantation, ginkgo plantation, R. pseudoacacia plantation, and abandoned farmland. The values of information dimension D(1), correlation dimension D(2), and information dimension/volume dimension D(1)/D(0) in descending order were R. pseudoacacia plantation, ginkgo plantation, citrus plantation, abandoned farmland, and shaddock plantation. No significant differences were found in the symmetry degree Df, the spectral width Da of the singular spectral function, and the single fractal dimension D among the abandoned farmland and different plantations. Slight water repellency was observed in the abandoned farmland and different plantations. The degree of water repellency in descending order was R. pseudoacacia plantation > ginkgo plantation > abandoned farmland > citrus plantation > shaddock plantation. Significant correlations were found between fractal parameters and water repellency, and fractal parameters were suitable potential indicators for soil water repellency. |
Prevalence and risk factors of Cryptosporidium spp. and Giardia infestation in cattle and in broiler chickens in AlgeriaOriginal PaperR Baazizi, M Taibi, N Senouci, D Baroudi, S Khodja, R Belala, D Khelef, N MimouneVet Med - Czech, 2025, 70(2):68-76 | DOI: 10.17221/82/2024-VETMED Cryptosporidiosis and giardiasis are zoonotic protozoan diseases with significant public health and economic concerns. In Algeria, epidemiological data on these parasites in livestock are limited. This study aimed to estimate the prevalence of Cryptosporidium spp. and Giardia in dairy calves and broiler chickens and to identify the associated risk factors. A microscopic analysis of 200 faecal samples revealed a Cryptosporidium spp. prevalence of 56% in calves and 60% in broiler chickens, while the Giardia prevalence was 8% in calves and absent in chickens. In cattle, the data showed that age constituted a potential risk factor for both parasites (P < 0.000 1 for Cryptosporidium; P < 0.000 5 for Giardia). Interestingly, the risk of a Cryptosporidium infection decreased with age, while the Giardia infestation risk increased. The sex was not a significant factor for Cryptosporidium (P = 0.115 0), but was impactful for Giardia (P < 0.000 1), with males at higher risk. These results highlighted the distinct epidemiological characteristics of Cryptosporidium and Giardia infestations in Algerian livestock. The contrasting age-related risks and sex-specific susceptibility to Giardia underline the need for targeted, age and sex prevention strategies. This study provides valuable data to inform public health policies and to improve livestock management practices in Algeria, contributing to the wider understanding of these zoonotic parasites in North African agricultural farming. |
Effects of exogenous 2, 4-epibrassinolide and its inhibitors on the seed setting and yield of Tartary buckwheatOriginal PaperPeiuyn He, Huangdanni Ran, Kaifeng HuangPlant Soil Environ., 2025, 71(3):161-170 | DOI: 10.17221/669/2024-PSE The aim of this study was to evaluate the effects of exogenous 2, 4-epibrassinolide (EBR) on the yield of Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn.). A 2-year field experiment was conducted on Tartary buckwheat (cv. Jinqiao 2) with different concentrations (0, 0.1, 0.5, 1.0, and 2.0 mg/L) of EBR and brassinolide (BRZ, inhibitor of brassinolide synthesis). The seed setting rate, agronomic traits, and yield initially increased and then decreased with an increase in the EBR application rate. The seed setting rate, agronomic traits, and yield decreased gradually with an increase in BRZ concentration, and yield was the lowest at 2.0 mg/L. The appropriate application of exogenous EBR could promote the increase of Tartary buckwheat yield. Compared with 0 mg/L (control), the 0.1, 0.5, and 1.0 mg/L treatments increased yield by 13.53, 32.73, and 7.08%, respectively, while the high-concentration treatment (2.0 mg/L) decreased by 4.13%. In conclusion, the appropriate concentration of EBR treatment (0.5 mg/L) delayed the senescence of Tartary buckwheat by increasing its root activity and the activity of antioxidant enzymes in leaves. Simultaneously, it increased the chlorophyll content of Tartary buckwheat leaves, enhanced photosynthesis, increased nonstructural carbohydrate content, and augmented the "source," increasing the seed setting rate and yield of Tartary buckwheat. This concentration is recommended for use in the production of Tartary buckwheat. |
Impact of technical water retention on European beech (Fagus sylvatica L.) resilience and growth dynamicsOriginal PaperZdenìk Vacek, Ivana Tomá¹ková, Zdenìk Fuchs, Václav ©imùnek, Stanislav Vacek, Jan Cukor, Luká¹ Bílek, Josef Gallo, Karel Zlatu¹ka, Martin DuchanJ. For. Sci., 2025, 71(3):124-137 | DOI: 10.17221/92/2024-JFS Global climate change (GCC) is putting increasing pressure on forest ecosystems, leading to more frequent disturbances such as pest outbreaks and other climate-related stressors, all of which threaten forest stability. This study examines how different technical water retention measures (infiltration pits) can enhance the resilience of European beech (Fagus sylvatica L.) to these climatic challenges, focusing on their impact on radial growth, sap flow, and acclimatisation to moisture conditions at two sites in Czechia (430–440 m a.s.l.). Three treatments were compared: a water infiltration pit under a culvert mouth, an infiltration pit without a culvert and a control plot without a technical solution. Results showed that maximum daily transpiration rates of beech ranged between 90–120 L per day. Air temperature had a stronger influence on beech radial growth than precipitation, particularly at the waterlogged sites. The lowest radial growth occurred in the treatment involving a water infiltration pit under a culvert mouth, while treatments with an infiltration pit without a culvert demonstrated notable seasonal stem shrinkage and swelling (tree water deficit – TWD), especially in early spring. On the other hand, no differences were found between the three treatments including the control variant in the maximum growth or the context of minimum TWD. In conclusion, these technical measures had limited or short-term effects on the growth and physiological processes of European beech. Despite the high costs of implementation, sap flow and dendrochronological measurements do not support the construction of infiltration pits as a means of improving water retention in forest ecosystems. |
Determination of the variation in volatile components during the ripening of Sorbus domestica L. fruitOriginal PaperEngin Gür, Mehmet Ali Gündoğdu, Tuba BaºaranHort. Sci. (Prague), 2025, 52(1):53-60 | DOI: 10.17221/157/2023-HORTSCI Sorbus domestica L. is a deciduous shrub-like tree in the Rosaceae family that reaches different heights (3–25 m). The service tree commonly grows in the Marmara region, Central and Western Black Sea regions, and Central Anatolia in Türkiye. The fruit of the service tree called Sorbus domestica, has an essential place in regards to human health in terms of its antioxidant values. The aroma components and phenolic compounds it contains display a variety of physiological traits. This study was carried out to determine the changes in the pomological characteristics and volatile compounds of Sorbus domestica L. fruits in the Tokat region at harvest and the consuming maturities in 2019 and 2020. The aroma extraction from the Sorbus fruits identified esters, alcohols, ketones, aldehydes, terpenes, and other volatile aroma compounds. As a result of the study, differences in aldehydes, esters, and terpene compounds were notable within the scope of the volatile aroma compounds. According to the obtained information, our results identified total aldehydes of 70.64%, esters of 7.49%, and terpenes of 21.35% in Sorbus domestica during the harvest maturity. When Sorbus fruits were left at room temperature until consuming for consumption was reached, the volatile compound rates varied which were 60.59% for the aldehydes, 22.49% for the esters, and 13.20% for the terpenes. |
How have global pandemics destabilised the food market?Original PaperMeng Qin, Chi-Wei Su, Jinhao CuiAgric. Econ. - Czech, 2025, 71(6):323-335 | DOI: 10.17221/323/2023-AGRICECON The paper explores the influence of global pandemic uncertainty (GPU) on food prices (FP) by using the mixed-frequency vector autoregression (MF-VAR) model. Empirical findings indicate that the influence of GPU on FP varies across different scenarios, exhibiting either positive, negative, or insignificant effects. A positive influence implies that GPU fuels panic-buying and stockpiling behaviours, thereby boosting food demand. Concurrently, disruptions in agricultural production and food export restrictions tighten the market supply, potentially pushing FP upwards. Conversely, a negative effect suggests that the global economic downturn and food safety anxieties stemming from pandemic-related uncertainty may dampen food demand, causing FP to decline. In some instances, FP remains unaffected mainly by GPU due to the competing pressures from adverse climate change risks on the food market. Notably, FP's predictive error variance decomposition underscores that the net impact of GPU on FP is stimulatory. This overall effect aligns with the inter-temporal capital asset pricing model (ICAPM), which posits a positive influence of GPU on FP. The findings recommend that consumers and investors diversify their food sources, while policymakers should bolster food supply chain resilience, promote sustainable agriculture, establish emergency reserves and coordinate aid. |
Life cycle assessment of residential heat production from wood pellet combustion in the Northwest region of RussiaOriginal PaperEgor Selivanov, Pavel CudlínJ. For. Sci., 2025, 71(4):182-194 | DOI: 10.17221/88/2024-JFS The increasing global demand for energy and the negative environmental impacts of fossil fuel exploitation have driven interest in sustainable energy solutions, such as wood. The Russian Federation, as one of the world's largest pellet producers, has an opportunity to utilise pellets domestically. This study addresses the lack of publicly available life cycle assessment (LCA) studies on pellet production and utilisation in Russia, specifically examining the environmental impact of residential heat production from locally produced wood pellets. Utilising primary data from the Northwest region, the study follows ISO 14040 and 14044 standards and employs the ReCiPe 2016 (H) Midpoint v. 1.1 method to assess environmental impacts. The results indicate that the production of pellets is the dominant contributor to the global warming impact category, marine eutrophication, and fossil resource scarcity, while transportation has the least impact across all categories. Sensitivity analyses confirm the robustness of these findings, revealing that using natural gas for pellet drying increases emissions for global warming and fossil resource scarcity, and increasing transportation distance significantly raises emissions across all categories. The findings provide valuable insights for policymakers and stakeholders aiming to enhance the sustainability of similar bioenergy systems. |
Impact of microclimatic conditions on sperm production in Czech Holstein bulls: A correlational studyOriginal PaperFilipp Georgijeviè Savvulidi, Jaromír Ducháèek, Martin Ptáèek, Matú¹ Ga¹parík, Veronika Kováøová, Radim Codl, Ludìk StádníkCzech J. Anim. Sci., 2025, 70(4):121-129 | DOI: 10.17221/21/2025-CJAS
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Antibacterial activity and compositional analysis of Acer truncatum bunge leaf extract against Staphylococcus aureusOriginal PaperF Liao, J HeVet Med - Czech, 2025, 70(5):166-176 | DOI: 10.17221/65/2024-VETMED
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Enhancing the destructive egg quality assessment using the machine vision and feature extraction techniqueOriginal PaperEhsan Sheidaee, Pourya BazyarRes. Agr. Eng., 2025, 71(2):95-104 | DOI: 10.17221/86/2024-RAE The rapid growth of the food industry necessitates rigorous quality control, particularly in egg production. This study explores advanced methodologies for egg quality assessment by integrating the Principal Component Analysis (PCA), Linear Discriminant Analysis (LDA), and k-Nearest Neighbour (KNN) with machine vision techniques. While traditional destructive methods like measuring the Haugh unit (HU) offer direct insights, but render eggs unusable, non-destructive techniques, such as imaging and spectroscopy, allow continuous quality monitoring. Over a 20-day period, egg samples were evaluated using a digital camera to capture key parameters like the albumen and yolk heights. The study’s image processing involved noise reduction, feature extraction, and calibration. The PCA captured 90.18% of the data variability, while LDA achieved 100% classification accuracy, and KNN demonstrated 80% accuracy. These findings underscore the effectiveness of combining machine vision with statistical methods to enhance the egg grading accuracy, contributing to consumer safety and industry standards. |
The effect of soya curd substitution for milk on physical and sensory properties of vanilla gelato productOriginal PaperHega Bintang Pratama Putra, Anang Muhammad Legowo, Ahmad Ni'matullah Al-Baarri, Siti SusantiCzech 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. |
