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Comparative analysis of phenolic, flavonoid and antioxidant content in root vegetables from organic and conventional productionOriginal PaperZoranka Male¹eviæ, Mirjana Jovoviæ, Aleksandra Govedarica- Luèiæ, Marko PetkoviæHort. Sci. (Prague), 2023, 50(4):283-289 | DOI: 10.17221/26/2022-HORTSCI Vegetables and their products have a low caloric value. Root vegetables are rich in bioactive compounds such flavonoids, polyphenolic acids, carotenoids. It also contains a some percentage of other functional components that can significantly affect human health.In order to achieve a high yield, excessive fertilization with nitrogen fertilizer is performed, which worsens the quality of vegetables. The aim of this paper is to analyze the impact cultivation system on the content of total phenolics and flavonoids, as well as a comparative assessment of their antioxidant activity in selected samples of vegetables. The antioxidant activity was studied using DPPH, and ABTS assays. The total phenolic content (TPC) and total flavonoid content (TFC) of the extracts were determined using Folin-Ciocalteuand and Aluminium chloride colorimetric methods, respectively. The highest content of total phenolics was determined for parsley from conventional production (427.38 mg GAE/100 g fresh sample), parsley from organic production the richest source of flavonoids (54.92 mg GAE/100 g fresh sample). Other samples of vegetables from conventional production had a lower flavonoid content compared to organic production. It was confirmed that the antioxidant activity of the analyzed vegetables in the maximum correlation with the content of total phenolics (R2 = 1). Organic samples of vegetables were characterized by a significantly higher content of flavonoids compared to vegetables grown conventionally. Organic production could be a good method to increase the concentration of bioactive compounds with antioxidant properties in vegetables. |
Efficiency of European Union wheat producers on world market and analysis of its determinants based on the data envelopment analysis methodOriginal PaperPawe³ Boczar, Lucyna B³a¿ejczyk-MajkaAgric. Econ. - Czech, 2022, 68(12):455-463 | DOI: 10.17221/267/2022-AGRICECON The war in Ukraine has shown that the worldwide food security can be easily shaken. This article focuses on an evaluation of European Union (EU) wheat producers on the world market. Would EU producers maintain their competitive position without direct payments? What changes need to be introduced to improve the position of EU producers on the world market? To answer these questions, a data envelopment analysis has been applied. It is indicated that the competitive position of EU wheat producers is still strongly dependent on direct payments and that mechanisation costs are a key area for improved efficiency in wheat production in Europe. |
Thin layer drying characteristics of alligator pepper, ginger and turmericOriginal PaperAdebayo Olasunkanmi Salau*, Babatunde Sunday Ogunsina, Adewale Waliu Adebayo, Adekunle Felix OkunadeRes. Agr. Eng., 2023, 69(1):1-8 | DOI: 10.17221/71/2021-RAE The delightful pungency, aromatic compounds and phytochemicals in some spices make them indispensable in local food systems and native medicine, hence, driving a robust market in many parts of the world. The understanding of their drying characteristics is very important for processing and adding value, and a thin layer drying study is a proven method for achieving this. In this study, changes in the moisture content, moisture ratio, drying rate and effective diffusivity of alligator peppers, ginger and turmeric were investigated at three drying temperatures 50, 60, and 70 °C following standard procedures. Five models were proposed to simulate the drying process. Non-linear regression was used to establish the coefficient of determination (R2), sum of square error (SSE) and root mean square error (RMSE) for each model to determine the model of the best fit. The Page model gave the best fit for ginger while the logarithmic model was best fitted for alligator peppers and turmeric. The effective diffusivity ranged from 1.79–3.08 × 10–9, 8.44–9.74 × 10–9, and 4.06–6.49 × 10–9 m2·s–1 for alligator peppers, ginger and turmeric, respectively. The activation energy ranged from 16.5–22 kJ·mol–1·K–1 for the three spices. These findings promise improvement in the drying, processing and handling of spices, thereby boosting the obtainable income from the value chain. |
The effect of drip irrigation for potatoes on soil nitrogen dynamicsOriginal PaperMilan Èí¾ek, Andrea Svobodová, Jiøí Zámeèník, Pavel Kasal, Daniel VejcharPlant Soil Environ., 2023, 69(2):55-61 | DOI: 10.17221/422/2022-PSE The effects of potato drip irrigation on soil nitrogen dynamics and potato yield was studied in small-plot field trials. The trials were evaluated at during three experimental times seasons (2016-2018). Four variants of irrigation were determined, ie non-irrigated, 60, 65 and 70 ASWC (Available Soil Water Capacity). At the same time, two pre-planting fertilization dates were set at a maximum of 120 kg N/ha a in divided i.e. 60 kg N/ha before planting and 60 kg N/ha by fertigation during vegetation. Pre-planting crop fertilization or in-season fertigation did not have any significant effect on the potato yields of most variants. In all studied parameters, the positive beneficial effect of irrigation was recorded and compared to the non-irrigated control. The mitigation of drought stress in plants during the growing season is the most important advantage of irrigation. In the trials, on average across all years and varieties, the yield of the irrigated variant increased by 41 % compared to the non-irrigated variant. Maintaining optimal soil moisture has a favourable effect use of applied fertilizers. The highest mineral nitrogen content in the soil was recorded for the variant without irrigation. Considering the increased use of nitrogen fertilizers, the subsurface drip line appeared to be optimal for the creation of suitable conditions for nitrogen availability to plants in the root zone. |
The impact of geopolitical risk on agricultural commodity pricesOriginal PaperKristína Hudecová, Miroslava RajèániováAgric. Econ. - Czech, 2023, 69(4):129-139 | DOI: 10.17221/374/2022-AGRICECON
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Synergism of plant microbe interactions for remediation of potentially toxic elementsReviewRanjna Kaundal, Vipin Parkash, Supriti Paul, Meghna ThapaJ. For. Sci., 2023, 69(4):127-143 | DOI: 10.17221/1/2023-JFS
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Effect of glyphosate on the foraging activity of European honey bees (Apis mellifera L.)ReviewAneta Bok¹ová, Jan Kazda, Jan Barto¹ka, Martin KamlerPlant Soil Environ., 2023, 69(5):195-201 | DOI: 10.17221/86/2023-PSE Glyphosate is a widely used agrochemical. Nevertheless, only a few studies have investigated its effect on bees, specifically its influence on their foraging activity. This article provides a summary of the prominent research results on this issue, published in journals in the field of experimental biology. The effect of commonly used concentrations of glyphosate on honey bee navigation has been evaluated in several studies, as well as concentrations that are reportedly sublethal. Exposure to this herbicide increases the flight time back to the hive and affects the flight trajectories of these bees. These results imply that glyphosate at certain concentrations reduces their sensitivity to nectar rewards in associative memories. The contact of bees with non-lethal concentrations of glyphosate results in sublethal effects that affect foraging. In the future, the behaviour of glyphosate and its effect on bees in their natural environment need to be explored. |
Biodegradation of chlorpyrifos by soil bacteria and their effects on growth of rice seedlings under pesticide-contaminated soilOriginal PaperThanakorn Saengsanga, Nutthida PhakratokPlant Soil Environ., 2023, 69(5):210-220 | DOI: 10.17221/106/2023-PSE This study identified three soil bacteria (NRRU-BW3, NRRU-BW3, and NRRU-TV11) that degrade chlorpyrifos, produce indole-3-acetic acid, and exopolysaccharides under pesticide stress. The results revealed that soil bacteria were identified as Priestia megaterium NRRU-BW3, Bacillus siamensis NRRU-BW9, and Bacillus amyloliquefaciens NRRU-TV11. These strains showed the ability to produce indole-3-acetic acid (IAA) and exopolysaccharides (EPS) in chlorpyrifos. Moreover, these bacteria can degrade chlorpyrifos (CP) in an aqueous medium, and a 33–52% degradation rate was observed after 14 days of incubation. Inoculation with the NRRU-TV11 significantly increased (P < 0.05) plant height, root length, biomass and vigour index of rice seedlings compared to uninoculated controls in chlorpyrifos-contaminated soil. The findings demonstrated the beneficial effects of indigenous NRRU-TV11 on rice seedling development and chlorpyrifos degradation and recommended this strain as a potential replacement for plant growth improvement and environmental bioremediation of pesticide-contaminated agricultural soils. |
In vitro evaluation of the composition and acaricidal efficacy of Urtica fissa leaf ethyl acetate extract against Sarcoptes scabiei mitesOriginal PaperF Liao, T Bao, G Tao, Y Hu, C HanVet Med - Czech, 2023, 68(5):200-207 | DOI: 10.17221/6/2023-VETMED In veterinary medicine, natural products provide an alternative to chemical agents for mite management. In the present study, the acaricidal efficacy of Urtica fissa leaf ethyl acetate extract against Sarcoptes scabiei mites was examined. The chemical composition of the extract was determined using liquid chromatography-mass spectrometry (LC-MS) analysis. The ethyl acetate extract was found to be extremely toxic to mites at a concentration of 100 mg/ml (m/v), killing all S. scabiei within two hours. The median lethal time (LT50) values for ethyl acetate extract concentrations of 25, 50, and 100 mg/ml against S. scabiei were 1.706, 1.204, and 0.750 h, respectively. The median lethal dosage (LC50) for S. scabiei was 19.14 mg/ml at two hours. The chemical composition of the ethyl acetate extract was evaluated using LC-MS, showing that the major components were schaftoside (8.259%), carnosol (6.736%), prostaglandin A2 (5.94%), 13(S)-HpOTrE (4.624%), nandrolone (4.264%), 1H-indole-3-carboxaldehyde (4.138%), 9-oxoODE (3.206%), and stearidonic acid (2.891%). In conclusion, these findings indicate that Urtica fissa contains promising new acaricidal compounds capable of successfully controlling animal mites. |
The influence of biofertilization on the vegetative growth, yielding and nutritional status of ‘Sampion’ apple trees in first years after plantingOriginal PaperWaldemar Treder, Krzysztof Klamkowski, Lidia Sas-Paszt, Katarzyna Wójcik, Anna Tryngiel-Gaæ, Mateusz Fr±c, Anna Lisek, Krzysztof Górnik, Edyta DerkoHort. Sci. (Prague), 2023, 50(2):91-100 | DOI: 10.17221/101/2021-HORTSCI The effects of biofertilizers on the growth, yielding, and nutritional status of apple trees (in comparison with the standard mineral fertilization) was evaluated in 3-years experiment (2018–2020). The experiment included the following treatments: (i) Super Fos Dar, (ii) Polifoska 6, (iii) Super Fos Dar + fungi (Aspergillus niger, Purpureocillium lilacinum), (iv) Urea enriched with fungi, (v) Urea dose reduced to 60% enriched with fungi, (vi) Super Fos Dar + bacteria applied on their own to the soil (Bacillus sp., Bacillus amyloliquefaciens, Paenibacillus polymyxa), (vii) Super Fos Dar enriched with bacteria, (viii) Super Fos Dar 60% enriched with bacteria, (ix) Polifoska 6 enriched with bacteria, (x) Polifoska 6 60% enriched with bacteria. The application of mineral fertilizers (even in reduced doses) enriched with beneficial microorganisms enhanced the growth of apple trees. The most abundant flowering was recorded when fertilization (with Super Fos Dar) was supplemented with beneficial microorganisms applied to the soil. No significant differences in plant yielding were noted (due to damages caused by spring frosts), but the highest fruit weight was recorded in the case of the trees fertilized with microbiologically enriched Super Fos Dar. |
Inoculation with Bacillus alters nitrogen uptake and metabolism in roots of Diospyros lotus under wheat straw addition in soilOriginal PaperPeng Zhang, Fengge Hao, Zitan Zhu, Dongmei Lang, Huiling HuPlant Soil Environ., 2023, 69(10):463-470 | DOI: 10.17221/225/2023-PSE
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Impact of protection methods and abiotic factors on Nothofagus pumilio seedlings mortality in Torres del Paine National Park, ChileOriginal PaperMartin Smola, Josef Cafourek, Antonín Kusbach, Martin ©enfeldr, Josef Støítecký, Petr MadìraJ. For. Sci., 2023, 69(9):389-400 | DOI: 10.17221/45/2023-JFS
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Mathematical modeling of drying parameters of moringa oleifera leaves in a cabinet dryeOriginal PaperTimothy Adekanye, Abiodun Okunola, Olumuyiwa Moses, Endurance Idahosa, Yisa Boye, Aminu SalehRes. Agr. Eng., 2023, 69(4):159-166 | DOI: 10.17221/72/2022-RAE
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Growth response of seven multipurpose tree species to climatic factors: A case study from northwestern Himalayas, IndiaOriginal PaperSucharita Panda, D.R. Bhardwaj, C.L. Thakur, Prashant Sharma, Dhirender KumarJ. For. Sci., 2022, 68(3):83-95 | DOI: 10.17221/159/2021-JFS Identification of the species for dendrochronological studies is of great relevance to understand various aspects of climate change. However, in the northwestern Himalayan region, dendroclimatological investigations are confined to conifer species, with broadleaved species being disregarded. Thus, the present study was conducted to assess the growth response of seven multipurpose tree species (MPTs), namely Bauhinia variegata, Celtis australis, Grewia optiva, Paulownia fortunei, Toona ciliata, Ulmus villosa and Melia composita to local climate variables, viz. temperature as well as rainfall (seasonal, monthly, average) and CO2 level by evaluating the climatic signal in tree ring chronologies at Solan district, India (altitude 1 250 m) in the mid-hills of the northwestern Himalayas. The results indicated that only the maximum, rainy season temperature and CO2 level varied significantly (P < 0.05) between 1991 and 2017. Only G. optiva exhibited a significant (P < 0.05) tendency toward increased growth. C. australis has a remarkable negative correlation with temperature variables, viz. average, maximum, spring season, March temperature, whereas T. ciliata exhibits a positive correlation with temperature variables, such as rainy season, average and April temperature. Similarly, winter, total and December rainfall have a profound effect on P. fortunei, while March rainfall adversely affected the growth of B. variegata. On the other hand, G. optiva demonstrated sensitivity to both temperature (February and May) and rainfall variables (winter, February and May). U. villosa recorded a positive correlation with rainfall (autumn and October rainfall) but a negative correlation with temperature variables (maximum and April temperature). Elevated CO2 levels affected only two species (G. optiva, M. composita) out of the seven selected species. Our findings will contribute to a better understanding of the climate growth relationships of investigated tree species, as a result, to more accurate projections of the effects of climate change on these MPTs and directing future studies. |
Genomic characterization of Serbian Holstein-Friesian cattle populationOriginal PaperMomèilo ©aran, Ljuba ©trbac, Dobrila Jankoviæ, Mihajla Djan, Sne¾ana Trivunoviæ, Minja ZorcCzech J. Anim. Sci., 2023, 68(12):486-496 | DOI: 10.17221/89/2023-CJAS The use of genomic data makes it possible to examine genetic variability and calculate the genetic parameters of the population in an efficient and precise way. The aim of this research was to analyse linkage disequilibrium (LD), contemporary effective population size (Nec), haplotype block structure, minor allele frequency (MAF), observed (HO) and expected heterozygosity (HE), calculate the genomic relationship matrix and perform a principal component analysis (PCA) in the Serbian Holstein-Friesian cattle population using SNP data from the GGP Bovine 100K chip. After quality control (QC), 83 208 SNPs and 1 575 cows were retained for further analysis. LD on autosomes had an average value of ≥ 0.2 up to a distance of 50–60 kb (r2 = 0.211), while on BTX r2 ≥ 0.2 was represented at distances of 80–90 kb (r2 = 0.211). LD differed between chromosomes. The average HO for autosomes and X chromosome SNPs was 0.412 and 0.422, respectively. 81.30% of SNPs that passed QC had MAF > 0.2. The total number of haplotype blocks in the studied population was 15 642. On average, blocks contained 2.932 SNPs. The average block length was 32.657 kb and ranged from a minimum of 0.019 kb (BTA21 and BTA26) to a maximum of 999.562 kb (BTX). The estimated value of Nec in the this cattle population was 142. The results of PCA showed a significant variability of genotypes in the population, but there was no clear stratification of the population. The obtained results will serve as a basis for future genomic analyses such as the detection of QTLs for important economic traits and the implementation of genomic selection. |
Utilisation of chicken eggshell nanopowder on physicochemical quality, microstructure, and amino acid profile of beef pattiesOriginal PaperHerly Evanuarini, Agus Susilo, Uun Yanuhar, Adelya Desi KurniawatiCzech J. Food Sci., 2023, 41(6):428-435 | DOI: 10.17221/156/2023-CJFS Chicken eggshells are a source of calcium and protein that can be added to restructured meat products, including patties. This study aimed to improve the chemical quality of beef patties with the addition of chicken eggshell nanopowder, including pH, protein content, ash content, fat content, antioxidant activity, calcium, microstructural quality, and identification of amino acid profiles. The method used in this study was a laboratory experiment arranged in a completely randomised design with five treatments: without the addition of chicken eggshell nanopowder as a control, the addition of chicken eggshell nanopowder 0.1, 0.3, 0.5, and 0.7% (w/w) with five replications. Data were analysed using the analysis of variance. It was followed by Duncan's multi-range test when the differences were significant or very significant. The research results show that the addition of chicken eggshell nanopowder to beef patties had a very significant effect (P < 0.01%) on pH, protein content, ash content, fat content, antioxidant activity, calcium, microstructural quality through scanning electron microscopy, and several amino acids. The addition of 0.7% chicken eggshell nanopowder could improve the chemical quality of the beef patties. The patty matrix was uniform and compact, and the air voids were getting tighter with the addition of chicken eggshell nanopowder, which was increasing based on scanning electron microscopy observations. Moreover, beef patties had various types of amino acids to achieve the best treatment. |
Environmental suitability of Yersinia pestis and the spatial dynamics of plague in the Qinghai Lake region, ChinaOriginal PaperTE Arotolu, HN Wang, JN Lv, S Kun, LY Huang, XL WangVet Med - Czech, 2022, 67(11):569-578 | DOI: 10.17221/81/2021-VETMED Plague, a highly infectious disease caused by Yersinia pestis, has killed millions of people in history and is still active in the natural foci of the world nowadays. Understanding the spatiotemporal patterns of plague outbreaks in history is critically important, as it may help facilitate the prevention and control for potential future outbreaks. This study's objective was to estimate the effect of the topography, vegetation, climate, and other environmental factors on the Y. pestis ecological niche. A maximum entropy algorithm spatially modelled plague occurrence data from 2004-2018 and the environmental variables to evaluate the contribution of the variables to the distribution of Y. pestis. Our results found that the average minimum temperature in September (-8 °C to +5 °C) and the sheep population density (250 sheep per km2) were influential in characterising the niche. The rim of Qinghai Lake showed more favourable conditions for Y. pestis presence than other areas within the study area. Identifying various factors will assist any future modelling efforts. Our suitability map identifies hotspots and will help public health officials in resource allocation in their quest to abate future plague outbreaks. |
Sustainable innovation in agriculture: Building competitiveness and business sustainabilityOriginal PaperPavla Vrabcová, Hana UrbancováAgric. Econ. - Czech, 2023, 69(1):1-12 | DOI: 10.17221/321/2022-AGRICECON
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Prediction of saturated hydraulic conductivity Ks of agricultural soil using pedotransfer functionsOriginal PaperKamila Bá»ková, Svatopluk Matula, Markéta Miháliková, Eva Hrúzová, David Kwesi Abebrese, Recep Serdar Kara, Cansu AlmazSoil & Water Res., 2023, 18(1):25-32 | DOI: 10.17221/130/2022-SWR The determination of the saturated hydraulic conductivity Ks on a field scale presents a challenge in which several variables have to be considered. As there is no benchmark or reference method for the Ks determination, the suitability of each available method has to be evaluated. This study is aimed at the functional evaluation of three publicly available types of pedotransfer functions (PTFs) with different levels of utilised predictors. In total, ten PTF models were applied to the 56 data sets including the measured Ks value and the required predictors (% sand, silt and clay particles, dry bulk density, and organic matter/organic carbon content). A single agricultural field with a relatively homogenous particle size distribution was selected for the study to evaluate the ability of the PTF to reflect the variability of Ks. The correlation coefficient, coefficient of determination, mean error, and root mean square error were determined to evaluate the Ks prediction quality. The results showed a high variability in Ks within the field; the measured Ks values ranged between 10 and 1261 cm/day. Although the tested PTF models are based on a robust background of soil databases, they could not provide estimates with satisfactory accuracy unless local soil data were incorporated into the PTF development. |
Recent development of economic indicators on Czech dairy farmsOriginal PaperJan Syrùèek, Ludìk Bartoò, Dalibor Øehák, Magdaléna ©tolcová, Jiøí BurdychAgric. Econ. - Czech, 2023, 69(2):45-54 | DOI: 10.17221/381/2022-AGRICECON
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Change in β-glucosidase activity in root zone of ferns under toxic elements soil contaminationOriginal PaperMilan Novák, Veronika Zemanová, Milan Pavlík, Simona Procházková, Daniela PavlíkováPlant Soil Environ., 2023, 69(3):124-130 | DOI: 10.17221/448/2022-PSE The influence of toxic elements, such as arsenic (As), cadmium (Cd), lead (Pb), and zinc (Zn), in the root zone of As-hyperaccumulator Pteris cretica 'Albo-lineata' and non-As-hyperaccumulator P. straminea, on the enzymatic activity of β-glucosidase, dissolved organic carbon (C) in soil, toxic element accumulation in fern roots, and root biomass were evaluated in a pot experiment. Ferns were cultivated in soils from the locality of Suchdol (control) and Litavka (high contamination) for six months. For all toxic elements, an increasing trend in their contents in the roots was observed with soil contamination for both ferns. Differences between ferns were observed in As and Zn accumulation. Pteris cretica had a significantly higher As accumulation than P. straminea. Zinc accumulation in the roots showed an opposite trend. A significant difference between ferns was confirmed in the dissolved organic C content. Our results showed a significantly higher content of dissolved organic C in the P. straminea root zone than in P. cretica. The significant effect of toxic elements in the soil on β-glucosidase activity was observed. Toxic elements inhibited β-glucosidase activity in the root zone of P. cretica, and an increase in P. straminea was determined in the Litavka soil. The results suggest a higher sensitivity of P. straminea to toxic element contamination in soil, leading to increased β-glucosidase activity and increased dissolved organic C content. |
Corporate governance, ownership concentration and performance of European agricultural companies: New empirical evidenceOriginal PaperGraþiela Georgiana Noja, Mirela Cristea, Nicoleta Sîrghi, Oana-Ramona Socoliuc Gurițã, Ioana Vãdãsan, Daniel CîrciumaruAgric. Econ. - Czech, 2023, 69(4):151-161 | DOI: 10.17221/78/2023-AGRICECON
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Pyrethroid susceptibility and oxidative detoxification mechanism in Colorado potato beetle and western corn rootwormOriginal PaperDaria Dworzañska, Joanna Zamojska, Pawe³ Wêgorek, Pawe³ K. Bere¶, S³awomir DrzewieckiPlant Protect. Sci., 2023, 59(2):174-184 | DOI: 10.17221/53/2022-PPS The Colorado potato beetle (CPB) and the western corn rootworm (WCR) are among the world’s most expansive insect pests. The aim of the study was to assess, for the first time in Poland, the levels of susceptibility to deltamethrin and tau-fluvalinate in the WCR and to determine the current status of susceptibility to those active substances in the CPB. In addition, the role of oxidative metabolism in the detoxification of pyrethroids was determined using piperonyl butoxide (PBO). The study found pyrethroid resistance in the CPB populations. The WCR populations exhibited “high susceptibility”, “susceptibility”, “low resistance” and “medium resistance” to the pyrethroids tested. Experiments using PBO showed that oxidative enzymes are involved in the deltamethrin detoxification mechanism in the CPB, although the effectiveness of this mechanism in Poland is decreasing. PBO was found to be highly toxic to the WCR populations. The findings from this study should be taken into account when developing a strategy to prevent the development of resistance in the pest species. The results for the toxicity of PBO to Polish WCR populations demonstrated that the enzymes inhibited by PBO are involved in important metabolic processes, which should be considered when developing innovative control methods for this pest. |
Effect of forest management on the genetic diversity of Abies hidalgensis, a threatened species with restricted distributionOriginal PaperElena Rosales-Islas, Pablo Octavio-AguilarJ. For. Sci., 2023, 69(5):193-204 | DOI: 10.17221/13/2023-JFS
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Complete chloroplast genome sequence and characteristics analysis of Qingda no.1 alfalfa (Medicago sativa L. cv. Qingda no.1)Original PaperYuling Ren, Yajun Ma, Xue Li, Xiaoan Li, Guozhu Yang, Ping LiCzech J. Genet. Plant Breed., 2023, 59(3):160-168 | DOI: 10.17221/71/2022-CJGPB Medicago sativa is the most widely cultivated forage legume and one of the most economically valuable crops throughout the world. Qingda no.1 (Medicago sativa L. cv. Qingda no.1) is an excellent alfalfa local variety with strong cold, drought and salt resistance in the three rivers source area of Qinghai. In this study, the whole chloroplast (cp) genome of Qingda no.1 was sequenced, assembled and its structure was analysed by the Illumina high-throughput sequencing technology. The results showed that the chloroplast genome of Qingda no.1 exhibits no obvious typical quadripartite structure; the total length of the chloroplast genome is 125 637 bp; the chloroplast genome contained 111 genes, including 77 protein-coding genes, 30 tRNA genes, and 4 rRNA genes, with an overall GC content of 38.33%. The relative synonymous codon usage showed that 68.67% of the codons RSCU > 1 in Qingda no.1, with the preference ending with A and T. The simple sequence repeat (SSR) analysis identified 62 SSR loci. The phylogenetic analysis of the cp genome, Qingda no.1 clustered closely with Medicago sativa KU321683 (Medicago sativa L. cv. KU321683). These results are helpful for the further study of the Qingda no.1 adaptation mechanism to high altitude stress environments. |
Impact of political and security stability on food security in developing countries: Case of Africa, Asia, Latin America and the CaribbeanCase StudyJangkung Handoyo Mulyo, Imade Yoga Prasada, Agus Dwi NugrohoAgric. Econ. - Czech, 2023, 69(9):375-384 | DOI: 10.17221/142/2023-AGRICECON
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The importance of agriculture and rural areas for the future in the European Union: An exploration of public opinionOriginal PaperMercedes Rodríguez, José Antonio CamachoAgric. Econ. - Czech, 2023, 69(10):394-403 | DOI: 10.17221/115/2023-AGRICECON
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Nutritional evaluation of the full-day dietOriginal PaperBarbora Pohoøelá, Andrea Poláchová, Markéta Rù¾ièková, Marek Dole¾al, Jana Pulkrabová, Jan PánekCzech J. Food Sci., 2022, 40(2):118-129 | DOI: 10.17221/273/2021-CJFS Nutrition plays an important role in human life. So far, there have been discussions focusing on the nutritional value of individual foods, separate dishes, or daily meals. However, they have not taken into account the composition of the diet in the longer term. The aim of this work was to evaluate a full-day diet from a currently renowned company that is producing box diets on the Czech market against a full-day diet of twenty randomly selected students. The results showed that the box diet met the required amount of protein, fat, vitamin E, cholesterol, and also the optimal intake of n-6 and n-3 fatty acids. The amount of saturated fatty acids (SFA) was only slightly increased. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content averaged 38 mg day-1, which did not meet the current requirements. The students' full-day diet was variable, the individual differences were large. Protein intake could be assessed as sufficient in most cases. The total fat intake ranged from 21 g day-1 to 126 g day-1. Seven out of twenty samples would satisfy the recommendation for SFA. The content of the essential acids EPA and DHA was below the detection limit with the exception of one sample (containing herring fillets). |
Application strategy for sustainable livestock production with farm animal algorithms in response to climate change up to 2050: A reviewReviewSang-O ParkCzech J. Anim. Sci., 2022, 67(11):425-441 | DOI: 10.17221/172/2022-CJAS Global warming caused by climate change can increase heat stress and greenhouse gas (GHG) emissions, leading to food problems and livestock crises. Thus, pre-emptive responses are required to mitigate the food problems and livestock crises. The potential of a livestock crisis caused by global warming highlights the need for sustainable livestock production in response to climate change using a farm animal algorithm in order to address the population increase and avoid food problems in the future. In particular, the demand for animal-based foods has increased. Such a climate change threatens the livestock environment, production, reproductive efficiency, animal behaviour and welfare, while increasing the heat stress, livestock malodours, and GHG emissions. For these reasons, it is necessary to understand the concurrent mechanisms related to these effects of global warming, animal nutrition, animal feeding and management, animal heat stress and in ovo injection, and carbon neutral livestock. Climate-smart livestock systems are being implemented to overcome the livestock crisis caused by climate change and to maintain sustainable livestock production. This review emphasises the importance of sustainable livestock production using farm animal algorithms in response to a future livestock crisis caused by climate change in 2050. |
The occurrence of Fusarium spp. in green Asparagus officinalis L. spearsOriginal PaperRoman Andrzejak, Beata JanowskaHort. Sci. (Prague), 2022, 49(4):234-247 | DOI: 10.17221/100/2021-HORTSCI Due to changes in the climate and the existence of a wide range of Asparagus officinalis L. cultivars, it is necessary to identify their suitability for cultivation in Poland and investigate their susceptibility to infection by the most common pathogens. The identification of the species composition of fungi of the Fusarium genus found in green spears of edible A. officinalis cultivars and the factors contributing to their occurrence will enable the effective protection of these crops. The study was conducted on seven A. officinalis cultivars bred in different countries, which were dioecious cultivars with male and female specimens: 'Ariane' (Germany), 'Cipres' (France), 'Eposs' (Germany), as well as cultivars with male specimens only: 'Andreas' (France), 'Gynlim', 'Grolim' (Netherlands), and 'Hannibal' (Germany). The analysis of the composition of the fungi isolated from the green A. officinalis spears showed that most of the isolates belonged to the Fusarium genus (F. culmorum Wm.G. Sm., F. equiseti (Corda) Sacc., F. oxysporum Schltdl., F. proliferatum (Matsush.) Nirenberg ex Gerlach & Nirenberg, F. solani (Mart.) Sacc., and F. fujikuroi Nirenberg). Other fungal species (Alternaria, Botrytis, Cladosporium, Penicillium, and Stemphylium) were rarely isolated. The majority of the Fusarium genus isolates came from the spears of the 'Ariane' and 'Eposs' cultivars showing disease symptoms and from the spears of the 'Grolim' cultivar without showing disease symptoms. The fungi of the Fusarium genus colonised both the spears with and without disease symptoms, but there were always more isolates on the ones with disease symptoms. Fungi of the Fusarium genus occurred more often in the epidermis than in the parenchyma. F. oxysporum was the dominant fungus in the A. officinalis spears under analysis. The number of fungi isolates of the Fusarium genus collected from the green A. officinalis spears tended to increase at the consecutive harvest dates, which means that the spears harvested at the latest date (late June) were the most heavily colonised by fungi. All of the fungi isolates of the Fusarium genus collected from the spears exhibited pathogenicity against A. officinalis plants. |
