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Results 151 to 180 of 2032:
Additive effects of ceftiofur-neomycin combination against multidrug-resistant pathogenic Escherichia coli in a murine infection modelOriginal PaperK-H Do, M-G Kim, D-H Ryu, H-J Ahn, S-B Kim, Y-K Go, SY Kim, S Kim, S-H Lee, D-K Kim (ORCID:Vet Med - Czech, 2026, 71(1):18-26 | DOI: 10.17221/38/2025-VETMED This study aimed to evaluate the therapeutic efficacy of a ceftiofur-neomycin combination against a pathogenic multidrug-resistant Escherichia coli strain, KECS-0513, isolated from pigs, using a combination of genomic, in vitro, and in vivo approaches. The minimum inhibitory concentration, minimum bactericidal concentration, and checkerboard assays were performed. Time–kill assays were used to assess bactericidal activity over time, and a murine intraperitoneal infection model was used to evaluate survival outcomes following treatment with monotherapies or combination regimens. Whole genome sequencing indicated that KECS-0513 harboured multiple resistance genes, including blaTEM-1B, sul3, aadA12, aad(3)-IVa, aph(3’)-Ia, and aph(4)-Ia. The resistance genes were localised within a mobile, element-rich plasmid. In vitro checkerboard assays revealed an additive interaction between ceftiofur and neomycin (fractional inhibitory concentration index = 1.0), and time–kill experiments demonstrated enhanced and sustained bacterial clearance with combination therapy. In vivo infection studies in mice demonstrated that the dual treatment resulted in a substantially higher survival rate (66.7%) compared to treatment with either agent alone (33.3% for each). These results support the practical application of ceftiofur-neomycin combination therapy for controlling swine-associated multidrug-resistant E. coli while minimising the risk of resistance emergence. |
The impact of domestication process on eggshell microstructure in Gallus gallus, Anser anser and Anas platyrhynchosOriginal PaperJoanna Rosenberger, Łukasz Pawelec, Regina GrugelCzech J. Anim. Sci., 2026, 71(1):30-40 | DOI: 10.17221/112/2024-CJAS
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Influence of the drone brood homogenate on the gut integrity and cellular immunity: A pilot study on pigsOriginal PaperV Karaffova, D Mudronova, M Levkut, L Rajcakova, Erik Hudec, R Zitnan, P PatrasVet Med - Czech, 2026, 71(3):95-105 | DOI: 10.17221/98/2025-VETMED Drone brood homogenate (DBH), a nutrient-rich bee product, has received limited scientific attention despite its potential immunomodulatory and gut-protective properties. This study evaluated the effects of a dietary DBH supplementation on the intestinal barrier–related gene expression, phagocytic activity, and lymphocyte subpopulations in pigs. Eighteen weaned pigs were assigned to three groups (control, DBH100, DBH200) and fed DBH at 0, 100, or 200 mg/kg feed for 18 days. The gene expression of tight junction markers (occludin, claudin-1) and mucosal integrity–associated proteins (lumican, OLFM4) was assessed in the ileum by qRT-PCR. Phagocyte function and peripheral blood lymphocyte subpopulations were analysed by flow cytometry. DBH200 significantly upregulated the occludin, claudin-1, lumican, and OLFM4 expression, indicating enhanced intestinal barrier support. The phagocytes from both DBH-treated groups exhibited an increased engulfing capacity and an elevated oxidative burst index, though the percentage of active phagocytes was only weakly affected. The DBH supplementation did not alter the total T (CD3+) or B (CD21+) cells; however, both DBH groups showed a significantly increased CD4+ : CD8+ lymphocyte ratio, which is consistent with immune stimulation. These findings suggest that DBH may beneficially modulate the gut barrier integrity and selected components of innate and adaptive cellular immunity in pigs. |
The effect of chitosan enriched with different essential oils on the physicochemical and microbiological quality of trout burgers stored at 4 °COriginal PaperWadah Elsheikh, Ilknur UcakCzech J. Food Sci., 2026, 44(1):62-70 | DOI: 10.17221/116/2025-CJFS This study examined the effects of chitosan films enriched with various essential oils on the quality characteristics of rainbow trout burgers stored at (4 ± 1 °C) for 21 days. Five groups were prepared: a control group (C), a chitosan film group (CF), and groups of chitosan films enriched with 1% oregano essential oil (OEO), citrus essential oil (CEO), and rosemary essential oil (REO). Microbiological counts and physicochemical factors were assessed. Significant differences (P < 0.05) in physicochemical properties were observed among the treatments, with OEO showing the lowest pH (6.67), the lowest peroxide value (PV; 12 meq O2·kg–1), and the lowest thiobarbituric acid reactive substances (TBARS) level [1.159 malondialdehyde (MDA)·kg–1]. Microbial results indicated that the shelf life of the treated groups was extended by up to 9 days compared to the control. The lowest counts of Enterobacteriaceae, yeast and mould, and lactic acid bacteria in OEO were 5.17, 4.87, and 5.10 log CFU·g–1, respectively, while the lowest counts of psychrophilic and mesophilic bacteria were observed in the REO group, at 6.34 and 6.29 log CFU·g–1, respectively. In conclusion, combining essential oils, particularly oregano and rosemary, with chitosan effectively enhances seafood freshness and extends its shelf life. |
Effects of omega-3 fatty acids on fresh bull semen quality: A systematic review and meta-analysisReviewJabulani Ngcobo, Thobela Louis TyasiCzech J. Anim. Sci., 2026, 71(3):97-108 | DOI: 10.17221/6/2026-CJAS
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Seasonal and microclimate-responsive expression of VRN-A1 and VRN-B1 in wheat under field conditionsOriginal PaperNicole Frantová, Ilja Tom Prášil, Ludmila HolkováCzech J. Genet. Plant Breed., 2026, 62(2):53-63 | DOI: 10.17221/76/2025-CJGPB The need of vernalisation, controlled by the gene VRN-1, impacts wheat adaptation and yield stability, yet field evidence on the plasticity of VRN-1 homoeologs expression is limited. We quantified VRN-1 homoeolog dynamics across two sites and two seasons in seven cultivars, by sampling their apex and leaf. VRN-A1 varied with genotype (P < 0.001***), tissue (apex > leaf; P < 0.001***), apex development (P < 0.001***), day length (P < 0.001***), and to a lesser extent, on short-term freezing exposure, quantified as a 5-day freezing-degree sum (FDS; P = 0.019*). Photoperiod class (Ppd-D1a vs Ppd-D1b) added an additional effect (P = 0.001***). VRN-B1 showed strong genotype effects (P < 0.001***), a modest effect of site on its expression (P = 0.025*), and pronounced associations with microclimate variables (day length, thermal sums, freezing exposure; all P < 0.001***). Directionally, Ppd-D1a backgrounds tended to advance the development while showing earlier apex VRN-A1 peaks. Overall, VRN-A1 expression mainly reflected developmental stage and seasonal forcing, whereas VRN-B1 might be more microclimate-responsive, indicating complementary roles for timing and stress-response plasticity. To isolate causal effects and to further explain these dynamics, targeted sequencing and tests in near-isogenic lines will be needed in future work. |
Toxicity effect of Ricinus communis methanolic extracts against Bactrocera cucurbitae (Diptera: Tephritidae)Original PaperSadia Manzoor, Rasheed Akbar, Afaq Hussain, Amjad Ali, Brekhna Faheem, Maid Zaman, Abid Farid, Ijaz Hussain, Imtiaz Ali Khan, Kahkashan Perveen (ORCID: 00Plant Protect. Sci., 2025, 61(1):77-88 | DOI: 10.17221/46/2024-PPS Bactrocera cucurbitae, commonly known as the melon fruit fly, stands as a formidable threat to global agriculture, particularly in the cultivation of cucurbitaceous crops. The adaptability, high reproductive capacity, and broad host range of B. cucurbitae make it a persistent challenge for growers worldwide. Conventional control methods, often reliant on chemical pesticides, pose environmental and ecological concerns, necessitating the exploration of alternative strategies for sustainable pest management. Invasive plants often exert deleterious effects on ecosystems, and the castor bean plant, Ricinus communis, is no exception. To explore the efficacy of R. communis, a methanol extract was tested to find the toxicity effect against B. cucurbitae. In this study, different bioactive compounds were isolated from R. communis. The crude extract of R. communis was subjected to fractionating using different organic solvents in an increasing order of polarity, where the fraction indicating maximum activity was then taken for the isolation of the bioactive compounds using various chromatographic and spectroscopic techniques such as column chromatography, thin layer chromatography (TLC), gas chromatography-mass spectrometry (GC-MS). The concentrations of R. communis extracts at 0.5, 1.0, 1.5 and 2% methanol were used. Pure methanol was used as the control. The experimental conditions were maintained at 28 + 20 ºC and 65 + 5% relative humidity. The experiment was laid out in a complete randomised design having five replications. A probit analysis was used to find the LC50 and LC90. The results showed that, as the concentration of the plant extracts increases, the mortalities of B. cucurbitae also increased. After a 72 h exposure period, the crude extracts exhibited the lowest LC50 at 0.30% and LC90 at 0.60%. This study investigates the potential of methanolic extracts derived from various parts of R. communis to serve as a biopesticide against B. cucurbitae which can be easily available, economically feasible, socially acceptable and environmentally friendly. |
The overall spatial spillover effects of local agricultural policy: A study on China's corn stockpiling policy based on Adaptive Expectation Theory and Spatial Durbin ModelOriginal PaperYue Liu, Haoran YangAgric. Econ. - Czech, 2025, 71(3):160-172 | DOI: 10.17221/9/2024-AGRICECON In 2007, the Chinese government introduced a temporary corn storage policy targeting four regions: Heilongjiang, Jilin, Liaoning and Inner Mongolia. This policy aimed at stabilising grain markets and ensured farmers' income by providing price support for corn. Its implementation significantly impacted corn prices and the regional distribution of corn cultivation, offering a valuable case for analysing the economic outcomes of China's agricultural policies. This study adopts the adaptive expectations hypothesis to explore the policy's effects, focusing on its influence on farmers' price expectations (mean) and price volatility (variance). Using a Spatial Durbin Model (SDM), we empirically investigate the policy's dynamic regional impacts on corn planting areas. The results show that the temporary corn storage policy significantly increased corn planting areas in the targeted regions, while simultaneously reducing planting areas in non-targeted regions due to negative spatial spillover effects. At the national level, the policy had no statistically significant impact on total corn planting areas, indicating that abolishing the policy alone is unlikely to rationalise or optimise the agricultural planting structure. |
Crystallinity of starch, food composition, and digestibility of starchReviewEvžen Šárka, Petra Smrčková, Marcela SlukováCzech 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. |
Himalayan fir growth in central Bhutan reflects variability in temperature and precipitationOriginal PaperJiří Lehejček, Gabriel Vávrů, Sangay Wangchuk, Miroslav Svoboda, Katrien BoonenJ. For. Sci., 2025, 71(10):516-524 | DOI: 10.17221/58/2025-JFS Mountain ecosystems, especially those at the highest altitudes, are sensitive to current climate change. Proxy archives may provide an insightful tool to better understand ongoing changes and evaluate future scenarios. Trees have traditionally been used as such archives, as they often respond sensitively to environmental change. Thus, we studied tree-ring records of forest-line species Abies densa Griff. growing in the Eastern Himalayas, central Bhutan, to evaluate the effect of climate on the growth of this species. The annual chronologies were generated using standard dendrochronological methods and then compared with climatic data from the CRU TS database. The results demonstrate a negative effect of summer temperatures on the width of the annual rings, suggesting possible stress caused by higher temperatures during the monsoon season. On the other hand, a positive effect of temperatures on tree growth was observed during late winter months. The response to rainfall was mixed, with a positive effect on growth in November and a negative effect in May and January, suggesting a later onset of the vegetation season. To our knowledge, we present the first dendroclimatological study on this long-lived species in central Bhutan, portraying its potential for future climate and environmental research and applications. |
Biological activity of Paenibacillus polymyxa GT2 isolate from soil in Japan against anthracnose caused by Colletotrichum orbiculare in cucumberOriginal PaperAbdul Wali Haqyar, Masatoshi Ino, Naoto Kimura, Takumi Okido, Junichi Kihara, Makoto UenoPlant Protect. Sci., 2026, 62(1):47-57 | DOI: 10.17221/104/2024-PPS
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Ca–Mg–Al LDH-modified wheat straw biochar for efficient lead chemisorption from aqueous solution: Insights from isotherm and kinetic analysesOriginal PaperMuhammad Tahir Amin, Abdulrahman Ali Alazba, Muhammad Shafiq, Aftab Ahmad Khan, Muhammad Muhitur RahmanSoil & Water Res., 2026, 21(1):52-65 | DOI: 10.17221/106/2025-SWR This study reports layered double hydroxides (LDHs) modified wheat straw biochar (W-B), denoted as (LDH/W-B), as an efficient adsorbent material for removal of lead (Pb2+) ions from aqueous solution. This study also juxtaposes the adsorptive performance of LDH/W-B with W-B for Pb2+ removal. W-B was prepared via pyrolysis of wheat straw in a muffle furnace, using a controlled heating rate of 5 °C per min to reach 600 °C over a duration of three hours. Subsequently, LDH/W-B was synthesised using the co-precipitation method. Both resulting adsorbents were characterised for surface morphology and functional groups by means of scanning electron microscope (SEM) and Fourier transform infrared (FTIR), respectively. The influence of key adsorption parameters on the adsorption efficiency of W-B and LDH/W-B was systematically evaluated. At 60 min, the maximum Pb2+ removal efficiency was observed to be 78.21% for W-B and 92.4% for LDH/W-B. An increase in adsorbent dosage from 0.05 to 0.7 g and at a contact time of 1 h further enhanced Pb2+ removal, achieving efficiencies of 97% for W-B and 99% for LDH/W-B. The optimal conditions for maximum Pb2+ removal were determined to be 0.3 g of adsorbent (W-B and LDH/W-B), an initial heavy metal concentration of 10 mg/L, and a contact time of 1 h. Pb2+ removal data of W-B and LDH/W-B best fitted to the Langmuir isotherm and pseudo-second order kinetic model, which confirmed the dominance of chemisorption of Pb2+ ions. Additionally, the maximum theoretical adsorption capacity for Pb2+ is close to the experimentally obtained values, suggesting that the adsorption of Pb2+ primarily occurs through monolayer formation on the surface of both adsorbents. Overall, this study demonstrates that LDH/W-B is a highly promising adsorbent for Pb2+ removal in wastewater treatment applications. |
Mitigating methane in dairy cattle: Integrated strategies and the evolving role of precision livestock farmingReviewEva Mixtajová, Joana Nery, Radovan Kasarda, Muzaffer Denlí, Achille Schiavone, Alkan Çağlı, José Francisco Pérez, Hasan Hüseyin İpçak, JoCzech J. Anim. Sci., 2026, 71(2):41-58 | DOI: 10.17221/116/2025-CJAS
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Sensing weeds and crops using thermal and hyperspectral imaginaryOriginal PaperHana Vašková, Alois Bilavčík, Milan Kroulík, Jan LukášPlant Soil Environ., 2026, 72(2):146-154 | DOI: 10.17221/534/2025-PSE The availability of new sensor technologies, such as thermal and hyperspectral imaging, enables early-stage weed detection and species identification and density estimation, both of which are crucial for effective weed management. Thermal imaging successfully distinguished between dicotyledonous (oilseed rape, pea, Stellaria media, Triplerospermum inodorum, Veronica persica) and monocotyledonous species (barley, wheat, sorghum and Echinochloa crus-galli) except Amaranthus retroflexus, during early growth stages. The most pronounced differences in hyperspectral reflectance occurred at 550 nm, where five distinct plant groups were recognisable (sum of squares = 0.7604, F-value = 105.1). The highest hyperspectral reflectance was recorded for oilseed rape, followed by Stellaria media. The same trend was found for the normalised difference index (NDI), which also showed five distinct groups. These findings indicate that thermography and hyperspectral imaging have strong potential as effective tools for supporting weed detection in precision agriculture; however, further research and field validation are required before routine implementation in agricultural practice. |
Long-term effects of organic and mineral fertilisation on soil manganese dynamics and agricultural sustainabilityOriginal PaperSarfo Kwaku Obeng, Martin Kulhánek, Jiří Balík, Jindřich Černý, Ondřej SedlářPlant Soil Environ., 2026, 72(3):155-164 | DOI: 10.17221/562/2025-PSE Manganese (Mn) is often underestimated in plant nutrition. Its availability to plants is influenced by several factors, which can lead to Mn deficiency or toxicity. The objective was to evaluate the transformation of soil Mn over 21 years in a long-term field experiment. Fertilising with (i) sewage sludge 1 (SS1); (ii) sewage sludge 3 (3 times higher nitrogen (N) dose, SS3); (iii) farmyard manure (FYM); (iv) mineral nitrogen, phosphorus and potassium (NPK) and (v) mineral nitrogen in addition to straw (Nst) was studied to evaluate the transformations of Mn in soil using different extraction methods at the 5 locations. There was a general reduction in the pH during the experiment. Soil acidification caused by mineral N fertiliser increased the bioavailable Mn forms under NPK treatment. This Mn was mobilised from soil reserves, leading to depletion of Mn sources. Application of SS and FYM led to an increase in non-bioavailable Mn fractions, while the expected increase in biologically available Mn was not observed. As the high pH of soil limits Mn availability, foliar Mn application can be recommended for agricultural practice in high-pH soils. On the contrary, liming can be recommended for low-pH soil with high bioavailable Mn content to mitigate the risk of Mn toxicity. |
The AhDREB transgene expression activates NtP5CS and NtSUSY, promoting osmotic adjustment in transgenic tobacco under salt stressOriginal PaperThuy Thi Xuan Vi, Dang Xuan Hoang, Tra Thi Nguyen, Ngoc Bich Pham, Quan Huu Nguyen, Mau Hoang ChuCzech J. Genet. Plant Breed., 2026, 62(2):89-101 | DOI: 10.17221/124/2025-CJGPB Soil salinity is a major environmental constraint that limits the growth and productivity of peanut (Arachis hypogaea L.), a legume adapted to mildly acidic soils but highly sensitive to saline–alkaline conditions. Dehydration-Responsive Element Binding (DREB) transcription factors are key regulators of plant responses to abiotic stresses. In this study, the AhDREB gene from peanut was introduced into tobacco (Nicotiana tabacum) to examine its functional role under salt stress. The transgenic lines (L32.2 and L37.2) exhibited strong induction of AhDREB expression upon exposure to 150 and 250 mM NaCl, with transcript levels increasing up to 2.34-fold compared with untreated controls (P < 0.001). Quantitative RT-PCR analysis revealed that AhDREB enhanced the transcription of two osmolyte-related genes, NtP5CS and NtSUSY. Under saline conditions, the expression of these genes was 1.20–1.89-fold higher in transgenic lines than in wild-type (WT) plants and 4.74–7.66-fold higher than in non-stress conditions (P < 0.001). Consistently, both lines accumulated greater amounts of proline and soluble sugars, showing 2.09–2.30-fold and 2.40–4.70-fold increases, respectively, compared with the WT. Relative to non-stress conditions, proline and sugar contents increased by 3.59–5.47 fold and 3.75–7.65-fold, respectively. Line L37.2 accumulated higher proline levels, whereas L32.2 exhibited greater sugar content, indicating distinct osmolyte regulation patterns. Overall, the AhDREB gene enhances salt tolerance in tobacco by transcriptionally activating osmolyte biosynthetic pathways and improving cellular osmotic adjustment, providing molecular evidence for its potential application in developing stress-tolerant peanut cultivars. |
How do green finance, digital technology, trade openness, and climate change interact to shape food production in sub-Saharan Africa?Original PaperAbdul Salami Bah, Yongqiang Wang, Yuchun Zhu, Saffa Mohamed Massaquoi, Nomore NkhomaAgric. Econ. - Czech, 2026, 72(3):135-155 | DOI: 10.17221/227/2025-AGRICECON The promotion of sustainable food productivity through innovative technologies remains a central priority in economic development, attracting increasing attention from scholars, policymakers, and industry stakeholders. With the continuing rise in global food demand, resource-efficient solutions are essential to ensuring long-term agricultural growth and stability in food production. This study examines the impact of green finance, agricultural innovation, digital technology, trade openness, and climate change on food production in sub-Saharan Africa (SSA). Using the method of moments quantile regression (MMQR) and the generalised method of moments (GMM), it analyses a balanced panel dataset covering 46 SSA countries from 2001 to 2023. The findings highlight the positive influence of green finance, agricultural innovation, and digital technology in enhancing food production, particularly in lower production sectors, suggesting important bidirectional policy implications. Trade openness is found to promote agricultural growth but exhibits diminishing effects at higher levels of productivity, indicating the relevance of a unidirectional policy focus. In contrast, climate change has a negative effect on food production. The study also identifies key mediation pathways, including green finance stimulating research and development, digital technology improving agricultural credit and farmers' education, and trade openness attracting foreign direct investment. These results emphasise the importance of integrated policy frameworks that combine financial support, technological advancement, and trade openness to promote sustainable agricultural growth and strengthen food security across SSA. |
Root yield and technological quality of sugar beet as affected by harvest time under the conditions of the Western Forest-Steppe of UkraineOriginal PaperDmytro Kyselov, Svitlana Kalenska, Bohdan MazurenkoPlant Soil Environ., 2026, 72(4):259-270 | DOI: 10.17221/105/2026-PSE This study evaluated the effects of hybrid, vegetation period duration, weather conditions, and harvest timing on sugar beet (Beta vulgaris L.) yield and technological quality under short-rotation cropping systems in the Western Forest-Steppe of Ukraine. Field experiments were conducted in 2022–2024 on commercial fields using six industrial hybrids and five harvest intervals from late September to mid-November. Root yield, sugar content, sugar yield, α-amino nitrogen, K+ and Na+, invert sugars, and the technological quality index (Iq) were assessed using ANOVA, correlation analysis, and principal component analysis (PCA). Extending vegetation from 185 to 200 days increased root yield by 11–12% and sugar yield by 0.8–1.2 t/ha. The optimal harvest window (10–25 October) provided the highest performance, with root yields of 68–73 t/ha, sugar content of 16.2–16.6%, and sugar yields of 14.6–16.3 t/ha. Early harvest resulted in reduced sugar content and Iq, whereas harvesting after 10 November did not increase yield and caused deterioration of technological quality due to elevated α-amino nitrogen and molasses-forming ions. PCA showed that over 85% of the total variation was explained by technological quality and moisture-related factors. Strube hybrids demonstrated greater stability under extended vegetation compared with KWS hybrids. These results define an optimal harvest window for maximising sugar beet productivity and quality under temperate meteorological conditions. |
The cultural control of some important pests in cabbage (Brassica oleracea var. capitata L.) and onion (Allium cepa L.) using companion plantsReviewMonica Novljan, Tanja Bohinc, Stanislav TrdanPlant Protect. Sci., 2026, 62(1):1-26 | DOI: 10.17221/161/2024-PPS Cabbage (Brassica oleracea var. capitata L.) and onion (Allium cepa L.) are two of the most important vegetables in the world, and many insect pests are a problem in their production. Currently, especially in Europe, restrictions on the use of pesticides are increasingly being encouraged, so the need to find and use alternative methods is increasingly urgent. Cultural control of insect pests using companion plants, including cover crops, intercrops, and trap crops, has been proven to help manage these insect pests. Companion plants reduce plant insects primarily by disrupting host-seeking activity, disrupting oviposition, increasing the plant's natural enemies, or luring the pests to alternative food sources. This review outlines successful examples from around the world of the use of companion crops in controlling insect pests, focusing on the main pests of cabbage and onions in Europe. Details regarding the working mechanism of each of the three companion plants are discussed further in this article. We concluded that these companion plant tree forms effectively reduce the number of generalist and specialist plant pests attacking cabbage and onion. |
Silver geochemistry and isotope systematics in Ag-rich mine tailings from NamibiaOriginal PaperAleš Vaněk, Maria Vaňková, Vojtěch Ettler, Martin Mihaljevič, Bohdan Kříbek, Petra Vokurková, Tereza Zádorová, Vít Penížek, Ondra Sracek (ORCID: 0000-Soil & Water Res., 2026, 21(1):1-8 | DOI: 10.17221/143/2025-SWR In this study, we present a detailed geochemical characterisation and stable isotope systematics of silver (Ag) in a mining waste facility at the Namib Lead & Zinc mine in Namibia (Africa). We examined a series of flotation tailings and ore minerals to address two principal questions: (1) the distribution, chemical form and leachability of Ag, and (2) the local Ag isotopic signature(s) and its variability in relation to Ag speciation in the solid phase, as well as the fate of stable Ag isotopes. Our findings reveal a significant correlation between Ag and Pb concentrations, indicating that galena is the primary Ag carrier. Most importantly, all mild extractions mobilised only a minimal amount of Ag (≤ 1 wt.% of the total amount). This suggests that most Ag is associated with geochemically stable phases, specifically sulphides, which are not subjected to leaching and/or intensive weathering. Unlike other isotope studies, the present research demonstrates a homogeneous Ag isotopic signal in the tailings and individual ore samples with an average δ109Ag value of ~ 0‰ (± 0.1, 2SD). Therefore, this study provides new knowledge and clearly supports the use of Ag isotopic data to track primary Ag sources globally, not only in Africa. |
Effect of fertilisation and utilisation methods of red clover on surface nutrient balanceOriginal PaperHalyna Panakhyd, Nadiia Kozak, Yurii Olifir, Tetiana Partyka, Oleh Havryshko, Hryhorii Konyk, Oleh StasivPlant Soil Environ., 2026, 72(1):28-38 | DOI: 10.17221/369/2025-PSE The research was conducted in a long-term stationary experiment established on light grey forest surface-gleyed soil in 1965. Data presented in this study were collected during 2022–2024 growing seasons within the framework of this long-term experiment. The experiment is registered in the NAAS long-term field experiments registry (certificate No. 29) and the Global Long-Term Agricultural Experiments Network (GLTEN). The study examined the effect of growing red clover in a four-field crop rotation on nutrient balance at different fertiliser and lime doses and ratios. Red clover was used for feed and feed-green manure purposes. The research aimed to substantiate optimal methods of utilising this valuable forage crop and optimise fertilisation systems to ensure sustainable agricultural development. Growing the first cut of red clover for feed purposes and the second as green manure with fertilisation (N105P101K101 + organic fertilisers + liming) ensures a positive surface balance of 402 kg/ha of nitrogen, 150 kg/ha of phosphorus, and 204 kg/ha of potassium. These data are almost twice higher than indicators under minimal fertilisation doses. Despite the reduction in symbiotic nitrogen fixation from 217 kg/ha to 147 kg/ha when growing red clover in crop rotation with intensive fertilisation, it remains an effective phytobiological ameliorant. |
Assessment of mineral nutrients and risk elements in plants growing on soils polluted by magnesite emissionsOriginal PaperMargita Kuklová, Ján Kukla, Jana Luptáková, František Hnilička, Tomáš RýglPlant Soil Environ., 2026, 72(2):77-86 | DOI: 10.17221/443/2025-PSE Changes in the content of mineral nutrients (Ca, Mg, K, Na) and risk elements (Mn, Cd) in the assimilatory organs of selected plant species were studied along the altitudinal gradient of A‒D zones polluted by alkaline emissions from the magnesite factory Lubeník (Slovak Republic). Multivariate statistical analysis and comparison with background values in other studies demonstrate persistent intoxication of some plants by Mg (all study plants), K (Lactuca saligna, Dryopteris filix-mas), Mn (Quercus polycarpa, Carpinus betulus, Betula pendula, Lactuca saligna) and Cd (Quercus polycarpa, Carpinus betulus, Betula pendula, Lactuca saligna). Overall, Lactuca saligna accumulated the highest amounts of Mg, Cd, Na and K near the magnesite plant, suggesting its potential as an effective bioindicator of elemental pollution. Unbalanced Ca/Mg ratios, lower than 1, were recorded predominantly in all plant species sampled near the magnesite plant; unbalanced K/(Mg + Ca) ratios were predominantly in woody species. |
The inhibition of deep peritoneal endometriosis by Andrographolide through macrophage M1 activity in an endometriosis mice modelOriginal PaperIA Susianto, N Susilaningsih, ST Hidayat, Hardian, RR Tjandrawinata, B RachmawatiVet Med - Czech, 2026, 71(2):62-72 | DOI: 10.17221/32/2025-VETMED This study aims to demonstrate that Andrographolide, an herbal immunostimulant, can influence M1 macrophages to inhibit inflammation, including the growth of endometriosis caused by inflammation. This study evaluates the effects of Andrographolide on suppressing endometriosis through M1 macrophage activity. This post-test-only experimental study involved 42 female Balb/C mice, which were divided into six groups: Group N, KN (endometriosis without therapy), and KP (endometriosis + dienogest), P1 (endometriosis with 0.05 mg/kg), P2 (endometriosis + 0.1 mg/kg Andrographolide), and P3 (endometriosis + 0.2 mg/kg Andrographolide). Peritoneal fluid was aspirated, and the peritoneum was cut and stretched to observe the extent of the endometriosis. This study compared the formation of ectopic endometrial lesions and analysed the M1/M2 ratio in each group that received standard therapy versus Andrographolide therapy. The results from peritoneal fluid flow cytometry indicated that M1 was more dominant than M2 compared with KP. The levels of M2 in the P2 and P3 groups were also significantly lower than in the KN group. This study demonstrated that Andrographolide may enhance the regulation of M1 macrophage differentiation, acting as a precursor to endometriosis growth by suppressing M2 phenotypes that promote the condition. |
A spectral signature-based algorithm for the identifiability of crops and their cultivation conditionsOriginal PaperSarah El Azizi, Halima Taia, Abdes-Samed Bernoussi, Mina Amharref, Edyta WozniakRes. Agr. Eng., 2026, 72(1):56-69 | DOI: 10.17221/163/2025-RAE Recent advancements in remote sensing techniques, especially the combination of hyperspectral imaging with analytical algorithms, have greatly improved precision agriculture. This study introduces some algorithms developed for identifying crops and evaluating their growth conditions, focusing on irrigation and fertilisation. The present approach is based on the concept of identifiability of a family of dynamic systems and the differentiation of plants using their spectral signatures. The method uses a repository of spectral data and applies a developed algorithm to compare the measured spectra with the reference database, enabling the identifiability and the recognition of both known and unknown crops. As an application of our approach, we have considered two different crops: mint and rosemary, under different irrigation and fertilisation conditions. The results show that the algorithm achieved a 100% identification rate across the four unknown samples. The minimum spectral distances obtained are 0.01 and 0.03 for rosemary and mint, respectively. Thus, the family of systems was identifiable with a tolerance of η < 0.03. The study concluded that the algorithm effectively classifies the crop type and deduces its growth conditions, demonstrating its effectiveness for agricultural monitoring. |
Modified atmosphere packaging influences germination and seedling growth of organic-coated cucumber (Cucumis sativus L.) seedsOriginal PaperWissanee Pola, Arak Tira-Umphon, Kumrai Buensanteai, Sukanya Aiamla-orHort. Sci. (Prague), 2026, 53(1):38-48 | DOI: 10.17221/148/2024-HORTSCI Organic seed coating is an alternative method for supporting sustainable agriculture. This study investigates the influence of organic coating and seed storability on cucumber seeds using atmosphere-controlling techniques. The seeds were coated with an organic formulation, and a non-coated seed was used as a control. All samples were then packed using modified atmosphere packaging, including normal air, 100% N2, and 100% CO2, and stored under ambient conditions (30 ± 2 °C) for 8 months. Results indicated that the organic seed coating did not significantly affect seed germination compared to the non-coated seeds (P > 0.05) throughout the storage period. Moreover, the coating tended to positively influence seedling growth, including root and shoot lengths, seedling growth rate, chlorophyll content, and total phenolic content. Additionally, seeds packed with 100% CO2 showed a slight impact on seedling growth compared to those in normal airbags, but this modified atmosphere packaging technique tended to increase chlorophyll a and b, as well as the total phenolic content in seedlings. Conversely, seeds packaged with 100% N2 tended to decrease seedling lengths. Therefore, cucumber seeds coated with an organic formulation and packed in a 100% CO2 bag can enhance seedling growth parameters during germination and extend seed storability. |
Harvester service life impact on sugarcane field losses and product contaminationOriginal PaperKanya Kosum[Ahead of Print]CAAS Agricultural Journals, X:X | DOI: 10.17221/168/2025-RAE
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An overview and current progress of gibberellic acid-mediated abiotic stress alleviation in plantsReviewMd. Asif Mahamud, Shahin Imran, Newton Chandra Paul, Rakibul Hasan Md. Rabbi, Noushin Jahan, Prosenjit Sarker, Md. Najmol Hoque, Mousumi Jahan SumiPlant Soil Environ., 2025, 71(7):453-479 | DOI: 10.17221/137/2025-PSE Abiotic stressors are the main barriers to successful crop production in this era. The balance of redox and metabolic activities in plants is negatively impacted by abiotic stresses, which ultimately limit the plants’ capacity to grow and develop. The phytohormones are tiny molecules that control how plants grow and develop, as well as how they react to alterations in their environment. Phytohormone, gibberellic acid (GA) has been proven in a number of recent research to increase plants’ ability to withstand abiotic stress. By regulating numerous physio-biochemical and molecular processes, GA plays a crucial part in reducing the perturbations caused by abiotic stresses in plants. Recent findings have shown that GA controls the activity of antioxidant enzymes, stress-responsive genes, photosynthetic machinery, and reduced oxidative damage. Besides, GA has been involved in cross-talk with other phytohormones to regulate abiotic stress in plants. This review summarises the current research on the application of GA and discusses how GA might support crop growth and production in adverse conditions. The interaction of GA with other phytohormones, potential mechanisms for reducing abiotic stress in plants, the disadvantages of employing GA, and its promise for the future are also covered in this review. |
The identification of wheat leaf rust resistance genes and their utilisation value in 42 wheat cultivarsOriginal PaperXue Li, Zhanhai Kang, Jiaqi Zhang, Sufen Dong, Man Li, Xing LiCzech J. Genet. Plant Breed., 2026, 62(1):25-35 | DOI: 10.17221/78/2025-CJGPB Leaf rust is an important wheat disease that considerably reduces the wheat production in most wheat growing regions worldwide. This study aimed to identify leaf rust resistance genes in 42 wheat varieties to find genetic sources with the broadest spectrum of resistance against leaf rust pathotypes, to enable effective breeding for disease resistance. In this study, 42 wheat cultivars were inoculated with 18 pathotypes of Puccinia triticina Eriks. at the seedling stage to postulate the Lr genes in the cultivars. Resistance to leaf rust at the adult stage was then tested in field trials under natural infection during the 2019 to 2020 cropping seasons at Baoding, Hebei Province. Gene postulation together with molecular marker detection identified ten Lr genes (Lr1, Lr10, Lr14a, Lr26, Lr2a, Lr17, Lr20, Lr34, Lr37, and Lr46) among the 42 accessions. Lr1 was present in 16 accessions, Lr14a in three accessions, Lr17 in five accessions, Lr2a in five accessions, Lr34 in one accession, Lr10 in two accessions, Lr37 in two accessions and Lr46 in 29 accessions. Additionally, 15 wheat accessions displayed adult-plant resistance or other unknown genes. These results suggest that a high level of leaf rust resistance can be achieved by combining known resistance genes and adult-plant resistance genes in wheat cultivars. |
Presumed atypical cor triatriatum dexter in a geriatric dog: A case reportCase ReportY Jeong, D Kwon, K Park, K Lee, H YoonVet Med - Czech, 2026, 71(1):27-34 | DOI: 10.17221/50/2025-VETMED Membranous structures within the right atrium (RA), such as the Chiari network, eustachian valve, Thebesian valve, and cor triatriatum dexter (CTD), can present with overlapping imaging features and complicated diagnoses. A 17-year-old male Maltese presented with a cardiac murmur, cough, anorexia, and exercise intolerance. Echocardiography revealed a mobile membrane in the RA, dividing it into two chambers. Computed tomography (CT) confirmed this finding, demonstrating differential attenuation of contrast between the chambers. The vascular connections and anatomical relationships of the structure differed from those of previously reported CTD types. Although other sinus venosus valve remnants were considered, the findings supported a provisional diagnosis of atypical CTD. This case highlights the utility of multimodal imaging for the characterisation of right atrial membranous structures. In human medicine, a detailed anatomical comparison of sinus venosus valve remnants aids in the differential diagnosis. Applying a similar approach in veterinary medicine, especially in geriatric patients, may improve diagnostic accuracy. Comprehensive imaging evaluations, including echocardiography and CT, are recommended to assess RA membranes that may be misinterpreted as variants of the CTD or other embryological remnants. |
Population structure, genetic diversity, and reproductive efficiency in the autochthonous Busha cattle breedOriginal PaperAneta Piplica, Mato Čačić, Anamaria Ekert Kabalin, Maja Maurić Maljković, Ivan Vlahek, Velimir Sušić, Sven MenčikCzech J. Anim. Sci., 2026, 71(1):1-10 | DOI: 10.17221/138/2025-CJAS
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