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Results 661 to 690 of 1934:

Efficiency of selenium biofortification of spring wheat: the role of soil properties and organic matter amendmentOriginal Paper

Tomáą Mrątina, Lukáą Praus, Lukáą Kaplan, Jiřina Száková, Pavel Tlustoą

Plant Soil Environ., 2022, 68(12):572-579 | DOI: 10.17221/357/2022-PSE

The effect of soil selenate application to two different soils (Phaeozem and Cambisol) on biomass yield and selenium (Se) uptake by spring wheat (Triticum aestivum L.) was investigated in a pot experiment. Additionally, organic amendment (fugate, i.e. liquid by-product from the biogas plant) was applied to assess (i) the effect of organic matter on the bioavailability of Se and (ii) the fugate (containing 2.3 mg/kg of Se) as a potential source of Se for plants. Selenium was applied at two levels: 6.4 µg/kg (Se1) and 32 µg/kg (Se2) of soil. The efficiency of biofortification and the distribution of selenium within individual plant compartments were assessed in this case. The highest Se contents in the grain were achieved in the treatments receiving NPK fertiliser together with selenate, 455 µg/kg (Se1) and 2 721 µg/kg (Se2) when wheat was planted in Phaeozem. Fugate in co-application with selenate significantly reduced Se content in wheat plants as compared to treatments enriched solely with selenate. The lower Se contents in the wheat plants growing in Phaeozem were due to the biodilution effect, whereas in Cambisol, the decrease in wheat Se uptake was not clearly driven by a particular factor.

Do stand structure and admixture of tree species affect Scots pine aboveground biomass production and stability on its natural site?Original Paper

Ondřej ©PULÁK, Jiří SOUČEK, Jakub ČERNÝ

J. For. Sci., 2018, 64(11):486-495 | DOI: 10.17221/117/2018-JFS

The paper analyses stand structure and production on two experimental forest stand series of mature pure and mixed Scots pine stands, growing on natural Scots pine sites in the Czech Republic. Sessile oak was the main admixed species. In mixed stands, Scots pine constituted the dominant level of the stand, admixed species grew mostly as subdominants. Admixture increased stand densities and aboveground biomass production compared to pure stands. Sessile oak with the 20-30% number share within the Scots pine stand led to an increase of the Scots pine tree dimensions and mean stem merchantable wood (DBH ≥ 7 cm) volume compared to the pure Scots pine stand of similar density. The Scots pine and sessile oak slenderness ratios increased in mixed stands compared to monocultures, however, the stand mechanical stability was not threatened.

Regulation of nitrogen balance and yield on greenhouse eggplant under biochar addition in MollisolOriginal Paper

Yao Wang, Meng Zhou, Meng Hou, Yimin Chen, Yueyu Sui, Xiaoguang Jiao

Plant Soil Environ., 2022, 68(1):36-48 | DOI: 10.17221/393/2021-PSE

Maintaining nitrogen (N) balance and inhibiting N leaching loss in the soil-crop system is crucial to maintaining yield and reducing the environmental pollution. This study investigated the effects of soil NO3--N content and accumulation, eggplant yield, N leaching and balance response to biochar addition, including regular fertilisation and irrigation (W + F), biochar addition with regular fertilisation and irrigation (W + F + B), and biochar addition with 20% fertilisation and irrigation reduction (0.8W + 0.8F + B) treatments. Compared with W + F, W + F + B and 0.8W + 0.8F + B increased soil NO3--N content in 0-40 cm and soil NO3--N accumulation in 0-20 cm, and raised harvest index, N surplus and balance. Simultaneously, 0.8W + 0.8F + B compared to W + F enhanced N use efficiency and N partial factor productivity, conversely, it decreased N dry matter production efficiency, N surplus and balance. Stepwise regression analysis demonstrated that the effect of NO3--N leaching lasted in 60 cm under biochar addition in the first year, and lasted in 20 cm without biochar application in the next year. Altogether, biochar addition with 20% fertilisation and irrigation reduction is the most suitable management strategy to decrease N surplus and leaching, and maintain eggplant N uptake in a two-year cycle system on greenhouse vegetables in Mollisols.

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

L. Eyer, K. Hruska

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

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

The impact of agricultural land afforestation on air temperatures near the surfaceOriginal Paper

Jan Vopravil, Pavel Formánek, Darina Heřmanovská, Tomáą Khel, Karel Jacko

J. For. Sci., 2022, 68(12):485-495 | DOI: 10.17221/135/2022-JFS

Many studies showed that afforestation increases carbon storage and it can have effects on physical, chemical and biological properties of soil. Afforestation can affect local and regional climate and these effects differ between tropical, temperate and boreal areas. Forests are also efficient in protecting soils against erosion and their flood mitigation functions or other benefits are described in different publications. In this study, the pattern of air temperatures (20 cm, 40 cm and 60 cm above the surface) was studied 10 years after the afforestation of agricultural land (warm, mild dry region of the Czech Republic) with a mixture of broadleaved tree species (Quercus robur L., Quercus rubra L. and Acer platanoides L.) or monospecific Pinus sylvestris L. stand. The aim of our study was to find out the pattern of air temperatures (20 cm, 40 cm and 60 cm above the surface) on two plots (one of the plots ‒ old beech trees, the other plot ‒ clearing) in a beech (Fagus sylvatica L.) forest in a mildly warm, mildly wet region of the Czech Republic. The afforestation of agriculturally used land led to air temperature cooling and to a reduction of the amplitude of maximum and minimum temperatures. The average air temperature (from April 2021 to the beginning of November 2021) decreased by 0.7-1.1 °C on the afforested plots compared with the agriculturally used plot. In the beech forest, the average temperature decreased on the plot with clearing compared with the old beech trees (from the middle of September 2021 to the middle of November 2021). Our results confirm the benefits of afforestation to climate change mitigation; buffering of extreme temperatures is important for the human thermal comfort.

Food safety inspection of tas kebab and salad processing line in a catering companyOriginal Paper

Gul Ece Soyutemiz, Figen Cetinkaya, Basak Sunguc Cinar, Tulay Elal Mus, Artun Yibar, Merve Dogan

Czech J. Food Sci., 2022, 40(2):147-153 | DOI: 10.17221/142/2021-CJFS

This study was conducted to evaluate the sufficiency of food safety practices in a catering company. The presence of some pathogenic and indicator bacteria was monitored in the samples collected from raw materials, food, food contact surfaces and workers' hands and various steps of the tas kebab (a Turkish meat stew) and salad processing lines. Bacillus cereus was found in ready-to-eat (RTE) tas kebab and RTE salad, while Listeria monocytogenes was isolated from RTE salad. Furthermore, it was observed that RTE salad contained coagulase-positive Staphylococcus aureus without staphylococcal enterotoxin production. The swab samples obtained from cutting board surfaces, knives and workers' hands contained high counts of total aerobic bacteria and some samples were contaminated with coliforms and coagulase-positive/negative staphylococci. The presence of B. cereus and L. monocytogenes in RTE foods is a serious threat to public health, especially in the catering business. Preventing the presence of toxin-producing bacteria in RTE food is a fundamental action. Also, the occurrence of L. monocytogenes in RTE salad and B. cereus in RTE tas kebab/salad samples showed insufficient cleaning/disinfection practices. As a result, hygiene practices and regular monitoring in the catering business are necessary for food safety.

Surgical management of a metastatic vertebral tumour originating from a mammary adenocarcinoma in a dogCase Report

A Nam, SH Hong, HC Jee, WJ Lee, H Myung, DH Kim

Vet Med - Czech, 2022, 67(12):644-650 | DOI: 10.17221/140/2021-VETMED

An 11-year-old spayed female Toy Poodle presented with acute tetraparesis. A small subcutaneous mass was found in the right trunk region, and the magnetic resonance revealed a compressive spinal cord lesion due to an irregular bone proliferation at the third cervical vertebra. After surgical resection of the vertebral lesion, the neurological symptoms improved, and the patient could walk on her own. The excised vertebral and subcutaneous masses were diagnosed as a mammary adenocarcinoma on the histopathological examination, with Ki-67 and HER-2 immunohistochemistry staining. This case report highlights the importance of defining the primary tumours of metastatic vertebral tumours and the necessity of palliative surgery to improve the patient's quality of life.

Application strategy for sustainable livestock production with farm animal algorithms in response to climate change up to 2050: A reviewReview

Sang-O Park

Czech 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.

State of the raw wood growing stocks and prediction of further development of cutting in the context of coniferous stands calamity in the Czech RepublicOriginal Paper

Dalibor ©afařík, David Březina, Jakub Michal, Petra Hlaváčková

J. For. Sci., 2022, 68(10):423-435 | DOI: 10.17221/76/2022-JFS

The extremely dynamic development of calamities caused by the effects of global climate change followed by the spread of under-bark insect pests mainly in coniferous stands and the ongoing incidental felling have raised concerns in the woodworking industry about the developments in the source material with respect to ensuring production in a short-term view. Since the overall standing stock in spruce stands of all age classes in the Czech Republic amounts to 399.6 million m3 (2017-2026) and the theoretical outlook of the logging potential based on the percentage of logging accounts for 112.62 million m3 (2017-2026), the concerns might be deemed justified. The article presents an updated view of the current situation based on official statistics and offers an analytic prediction of the possible development, considering the possible consequences, even in the production of the forestry sector. The statistical data on the current situation have been compiled for the last two decades of development. The results show that with a continued high rate of bark beetle calamities, assuming a total annual cutting with a permanent limitation on the planned harvests of more than 30 million m3, the complete stands of spruce from age class 5 onwards could be harvested in approximately 14-16 years.

Harvesting and phytosanitary parameters with particular regard to mycotoxin content of maize as a function of different seasonal, fertilisation and hybrid effectOriginal Paper

Sándor Keszthelyi, Sándor Kadlicskó, György Pásztor, András Takács, Éva Szolcsányi, Ferenc Pál-Fám, Helga Lukács, Zsolt Pónya, Richárd Hoffmann, Kinga Rudolf, Tamás Sipos, Éva Piszker, Mónika Treitz, Ákos Mesterházy, Katalin Somfalvi-Tóth, Ildikó Jócsák, Gabriella Kazinczi

Plant Soil Environ., 2022, 68(6):262-271 | DOI: 10.17221/80/2022-PSE

The aim of our three consecutive years (2017-2019) field trial was to obtain information as to the effect of weather conditions of the actual year as well as to assess the impact of some technological parameters such as fertilisation, the choice on the hybrid type on the yield parameters, phytosanitary conditions and mycotoxin contamination of maize. According to our results, the climatic characteristics of the years, the examined hybrid characters (FAO 310 and 490) and the fact of N-fertilisation had significant effects on yield parameters and grain moisture content. The additional N-supply did not affect the development or severity of stem rot in any of the hybrid effects. In this respect, the year effect appeared to be the decisive factor since much higher stem rot values were recorded in the plots of the longer growing season hybrids. Among the mycotoxins examined, only zearalenone and fumonisin found in the harvest were significantly influenced by the effect of the year, the length of the growing season as well as nutrient replenishment. It can be stated that the applied technological parameters have a major effect on the expression of this toxin load in maize. Dry maize stocks that have lost their water in the vegetation are predisposing factors for toxin accumulation. N-content of soil and that of plants can play a different role in mycotoxin accumulation in maize plants.

Tillage and crop rotation effects on soil carbon and selected soil physical properties in a Haplic Cambisol in Eastern Cape, South AfricaOriginal Paper

Mxolisi Mtyobile, Lindah Muzangwa, Pearson Nyari Stephano Mnkeni

Soil & Water Res., 2020, 15(1):47-54 | DOI: 10.17221/176/2018-SWR

The effects of tillage and crop rotation on the soil carbon, the soil bulk density, the porosity and the soil water content were evaluated during the 6th season of an on-going field trial at the University of Fort Hare Farm (UFH), South Africa. Two tillage systems; conventional tillage (CT) and no-till and crop rotations; maize (Zea mays L.)-fallow-maize (MFM), maize-fallow-soybean (Glycine max L.) (MFS); maize-wheat (Triticum aestivum L.)-maize (MWM) and maize-wheat-soybean (MWS) were evaluated. The field experiment was a 2 × 4 factorial, laid out in a randomised complete design. The crop residues were retained for the no-till plots and incorporated for the CT plots, after each cropping season. No significant effects (P > 0.05) of the tillage and crop rotation on the bulk density were observed. However, the values ranged from 1.32 to1.37 g/cm3. Significant interaction effects of the tillage and crop rotation were observed on the soil porosity (P < 0.01) and the soil water content (P < 0.05). The porosity for the MFM and the MWS, was higher under the CT whereas for the MWM and the MWS, it was higher under the no-till. However, the greatest porosity was under the MWS. Whilst the no-till significantly increased (P < 0.05) the soil water content compared to the CT; the greatest soil water content was observed when the no-till was combined with the MWM rotations. The soil organic carbon (SOC) was increased more (P < 0.05) by the no-till than the CT, and the MFM consistently had the least SOC compared with the rest of the crop rotations, at all the sampling depths (0-5, 5-10 and 10-20 cm). The soil bulk density negatively correlated with the soil porosity and the soil water content, whereas the porosity positively correlated with the soil water content. The study concluded that the crop rotations, the MWM and the MWS under the no-till coupled with the residue retention improved the soil porosity and the soil water content levels the most.

Differences in the anatomy of the lower respiratory tract in selected species of the order TestudinesOriginal Paper

M Habova, M Pyszko, O Horak, E Cermakova, V Paral

Vet Med - Czech, 2022, 67(2):78-86 | DOI: 10.17221/64/2021-VETMED

The lower airways of turtles consist of the larynx, trachea and bronchi. Due to incomplete information about the anatomical structure of the lower respiratory tract in turtles, we decided to explore this topic more deeply. The material for this study included 95 turtle cadavers. Terrestrial tortoises were represented by 63 individuals from 8 species, aquatic and semi-aquatic turtles by 32 individuals from 11 species. The sex ratio was 54 females to 41 males. In addition to the anatomical autopsies and assessments of the macroscopic structures, numerous measurements were performed. The length, width and height of the larynx and trachea, and the length of the bronchi were measured. We found clinical significance in two parameters. The first one is the formation of the rima glottidis, which is significantly shorter and narrower in the aquatic turtles than in the terrestrial tortoises. It follows that for these species, we should use a smaller diameter of endotracheal cannula for intubation. The second parameter is a very short trachea in tortoises of the genus Testudo. The length of the trachea is only a few centimetres, which significantly increases the risk of intubation into one bronchus only.

Nitrogen addition turns a temperate peatland from a near-zero source into a strong sink of nitrous oxideOriginal Paper

Boli Yi, Fan Lu, Zhao-Jun Bu

Plant Soil Environ., 2022, 68(1):49-58 | DOI: 10.17221/411/2021-PSE

Peatlands, as important global nitrogen (N) pools, are potential sources of nitrous oxide (N2O) emissions. We measured N2O flux dynamics in Hani peatland in a growing season with simulating warming and N addition for 12 years in the Changbai Mountains, Northeastern China, by using static chamber-gas chromatography. We hypothesised that warming and N addition would accelerate N2O emissions from the peatland. In a growing season, the peatland under natural conditions showed near-zero N2O fluxes and warming increased N2O emissions but N addition greatly increased N2O absorption compared with control. There was no interaction between warming and N addition on N2O fluxes. Pearson correlation analysis showed that water table depth was one of the main environmental factors affecting N2O fluxes and a positive relationship between them was observed. Our study suggests that the N2O source function in natural temperate peatlands maybe not be so significant as we expected before; warming can increase N2O emissions, but a high dose of N input may turn temperate peatlands to be strong sinks of N2O, and global change including warming and nitrogen deposition can alter N2O fluxes via its indirect effect on hydrology and vegetation in peatlands.

Effects of straw return and aeration on oxygen status and redox environment in flooded soilOriginal Paper

Yunhao An, Xiyun Jiao, Zhe Gu, Chuanmeng Shi, Kaihua Liu

Soil & Water Res., 2022, 17(1):29-35 | DOI: 10.17221/87/2020-SWR

To study the effects of straw return and aeration of the water layer on oxygen and redox status in the water column and at different depths in paddy field soil, a short-term incubation experiment was conducted with four treatments: (1) no straw return (NS); (2) straw return without aeration (S); (3) straw return and 30 minutes of aeration per day (SO30); and (4) straw return and 90 minutes of aeration per day (SO90). Compared to NS, S decreased dissolved oxygen (DO) and redox potential (ORP) by 23-58% and 47-53 mV, respectively, and increased active reducing substance (ARS) by 21-46% in the water and soil layers. The aeration treatments increased DO and ORP by 25-120% and 11-86 mV, respectively, and reduced ARS by 5-16% compared to S. The results indicated that straw return to paddy fields exacerbated hypoxia and reducing conditions in the soil. SO90 achieved better effects than SO30 in alleviating the negative impact of straw return by supplying more oxygen, but the effects weakened over time and with soil depth.

Detection, in silico analysis and molecular diversity of phytoplasmas from solanaceous crops in TurkeyOriginal Paper

Mustafa Usta, Abdullah Güller, Hikmet Murat Sipahioglu

Plant Protect. Sci., 2022, 58(1):31-39 | DOI: 10.17221/115/2021-PPS

Phytoplasma-like symptoms of leaf yellowing and calyx malformation were observed in eggplant (Solanum melongena L.), upward leaves and fruit malformation in pepper (Capsicum annuum L.), and aerial tuber formation in potato (S. tuberosum L.) during the survey performed in the late season (August to September) of 2015 and 2016 in Van province (Turkey). A total of 100 samples were tested by nested-PCR using universal primer pairs to assess the sanitary status of the solanaceous crops and to characterise the phytoplasma isolates. Among them, seven samples resulted in a 1.25 kb DNA fragment, and five (two eggplants, two peppers, and one potato) were molecularly characterised (Accession No.: KY579357, KT595210, MF564267, MF564266, and MH683601). BLAST and the virtual restriction fragment length polymorphism (RFLP) analysis of 16S rRNA genes revealed the presence of two distinct phytoplasma infections in solanaceous crops: 'Candidatus Phytoplasma trifolii' a member of the clover proliferation group (16SrVI) and subgroup A and 'Candidatus P. solani' a member of the stolbur group (16SrXII) and subgroup A. The virtual RFLP analysis and calculated coefficients of RFLP pattern similarities further revealed a remarkable genetic diversity among the 'Candidatus P. solani' isolates infecting pepper (similarity coefficient of 0.90) and eggplant (similarity coefficients of 0.98 and 1.00) at the same geographical area. This is the first report of the natural occurrence of 'Candidadtus P. trifolii' in potato from the Eastern Anatolia region, Turkey.

Growth response of seven multipurpose tree species to climatic factors: A case study from northwestern Himalayas, IndiaOriginal Paper

Sucharita Panda, D.R. Bhardwaj, C.L. Thakur, Prashant Sharma, Dhirender Kumar

J. 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.

Comparison of aeroponics and conventional system of production of potato mini-tubers in the conditions of the Czech RepublicOriginal Paper

Milan Číľek, Zuzana Komárková

Plant Soil Environ., 2022, 68(8):366-374 | DOI: 10.17221/164/2022-PSE

Aeroponics would appear to have a number of potential attributes to make potato production more efficient. In a 3-year experiment, from 2019 to 2021, potatoes were grown in aeroponic units using two nutrient solutions as well as in a conventional polycarbonate greenhouse in a substrate. Potato cultivars Adéla, Zuza and Ornella were used in all experiment years. No statistically significant effect of nutrient solution or potato cultivar on the number and weight of tubers was found in the trial. However, the advantages of aeroponics over conventional technology were statistically proven. The number of tubers per plant in aeroponic units ranged from 2.4 (2019, cv. Adéla) to 41.0 (2021, cv. Zuza), while in the greenhouse, they ranged from 3.9 (2019, cv. Adéla) up to 12.6 (2021, cv. Adéla). The average weight of tubers in aeroponic units ranged between 2.0 g and 9.9 g per plant (2 to 10 successive harvests), and in the greenhouse, 22.7 g to 41.9 g per plant (single harvest). The influence of cultivar on the average weight of tubers within individual cultivation technology variants was statistically proven only for polycarbonate greenhouse: only one harvest after the end vegetation.

Patellar luxation and concomitant cranial cruciate ligament rupture in dogs - A reviewReview

M Candela Andrade, P Slunsky, LG Klass, L Brunnberg

Vet Med - Czech, 2022, 67(4):163-178 | DOI: 10.17221/111/2021-VETMED

A patellar luxation and concomitant cranial cruciate ligament rupture is a common pathology in dogs. Diagnosis is based on clinical evidence of a patellar luxation and stifle joint instability. However, diagnostic imaging is required to assess the number of skeletal deformities and signs of instability. Surgical options include both soft tissue and osseous techniques, although, in most cases, a combination of multiple procedures is necessary to correct the patellar luxation and restore the stifle joint stability. Complication rates are generally low, but can include reluxation and implant-associated complications. This article describes the patellar luxation and cranial cruciate ligament rupture signs in dogs, including the clinical presentation and diagnosis, and discusses current treatment options.

The influence of photovoltaic and nuclear energy sources on the use of land in the Czech RepublicReview

Lukáą Martinec

Agric. Econ. - Czech, 2022, 68(8):307-316 | DOI: 10.17221/61/2022-AGRICECON

The human population is highly dependent on electricity, and to maintain the current progress of its use and for future requirements, it is necessary to look for ways to ensure sufficient energy. The aim of the article is to compare nuclear energy as a representative of non-renewable energy sources with photovoltaic energy as a representative of renewable energy sources (RES). The comparison is made in terms of the effect on agricultural land occupation, given that soil as a basic production factor is completely unique and that nuclear energy sources are often used as a backup for RES. We used a quantitative research method based on deduction using available real data to compare agricultural land occupation by these two energy sources. The results indicate that the effect of photovoltaic power plants on agricultural land occupation is 100 times greater than that of nuclear power plants. In terms of the effect on agricultural land occupation, the combination of solar and nuclear power plants seems to be appropriate. This combination partially eliminates the negative agricultural land occupation consequence of using solar power plants.

Silvicultural options to promote natural regeneration of Scots pine (Pinus sylvestris L.) in Western Ukrainian forestsOriginal Paper

Vasyl Lavnyy, Peter Spathelf, Rostyslav Kravchuk, Ruslan Vytseha, Volodymyr Yakhnytskyy

J. For. Sci., 2022, 68(8):298-310 | DOI: 10.17221/73/2022-JFS

Scots pine (Pinus sylvestris L.) forests belong to the most relevant forest types in the Western Ukrainian Roztochia area. The promotion of close-to-nature forest management in Ukraine in the framework of the forest strategy 2 035 supports natural regeneration and the application of diverse felling methods beyond clearcutting. In the present study, natural regeneration was analysed in mixed Scots pine stands on poor and relatively rich soils, after small clearcuts, shelterwood cutting and gap fellings (with or without soil preparation), with respect to tree species composition, species abundance and height growth. It could be shown that Scots pine is the most abundant species in all the felling systems, with on average more than 100 000 plants per ha on poor soils. Other admixed tree species only occur with small shares. Natural regeneration, especially of Scots pine, was less abundant on rich soils and in shelterwood, compared to a small clearcut. After the young plants have established, their abundance declined in the second and third year due to competing herbaceous plants and thick litter.

X-ray based computed tomography, a non-invasive approach in order to assess the damage caused by Lamprodila festiva of hidden lifestyleOriginal Paper

Sándor Keszthelyi, Tamás Sipos, Ádám Csóka, Tamás Donkó

Plant Protect. Sci., 2022, 58(1):65-69 | DOI: 10.17221/78/2021-PPS

The cypress jewel beetle Lamprodila (Palmar) festiva is a wood-boring pest posing a major threat to the phytosanitary conditions of several coniferous trees. Its unprecedented European expansion has triggered serious plant protection concerns in several new habitats. Parts of Chamaecyparis lawsoniana injured by L. festiva were collected and analysed by computed tomography in order to study the dimensions of the cavities caused by L. festiva larvae as well as the larval positions. It is concluded that computer tomography representing a non-invasive approach is a promising tool for the visual depiction of the position and the physical parameters of the cavities formed. According to our experimental data, the penetration into the cypress caused by larvae and, inherently, its depth depends on the diameter of the branch. Additionally, the developing larvae appeared to keep distance from each other, which also depended on the diameter of the attacked branch. Our approach provides new data to the biological traits of the species. The main benefit that our imaging method furnishes is the exact, stress-free measurement method of the hidden developing stages. Its additional advantage is the indirect pest identification, which is based on the predetermined pest-specific damage characters.

Responses of nitrogen accumulation and translocation in five cytoplasmic hybrid rice cultivarsOriginal Paper

Noor Muhammad, Yating Zheng, Farhan Nabi, Guotao Yang, Sumbal Sajid, Abdul Hakeem, Xuechun Wang, Youlin Peng, Zartasha Khan, Yungao Hu

Plant Soil Environ., 2022, 68(2):73-81 | DOI: 10.17221/354/2021-PSE

To study the difference among cytoplasm at the different nitrogen conditions, a research experiment was conducted using five different cytoplasmic male sterile (CMS) hybrid rice with nitrogen levels at N0, N1, N2, and N3; the nitrogen application rates were 0, 90, 180, and 270 kg/ha, from 2018 to 2019. Results showed that among tested cultivars of CMS hybrid rice, JW (J803A × Chenghui727) showed the highest yield in both years for the low nitrogen and high nitrogen treatments. The dry matter accumulation and translation of JW type in nutritive organs were higher than that of others during the low nitrogen level (N1). We concluded that the nutrient translocation within plants organs and dry biomass accumulation were highly dependent on CMS type and nitrogen application. This research indicates that selecting a rice cultivar with greater efficiency of nitrogen is favourable for raising the number of grains per panicle, grain yield, and nitrogen use efficiency. JW cytoplasm displayed great efficiency in low nitrogen, which is a potential cytoplasmic resource.

The impact of forest naturalness and tree species composition on soil organic carbon content in areas with unnatural occurrence of Norway spruce in the Czech RepublicOriginal Paper

Marián Horváth, Petra Hanáková Bečvářová, Bořivoj ©arapatka, Václav Zouhar

Soil & Water Res., 2022, 17(3):139-148 | DOI: 10.17221/19/2022-SWR

Climate change has increased attention paid in the research to forest soils and tree species composition, in respect to the potential for carbon sequestration. It is known that forest stands are able to store soil organic carbon (SOC), but little is known about the effect of forest naturalness on SOC content. This is important in relation of dying of unnatural spruce stands. It is necessary to determine a suitable composition of tree species which will replace them. This research is based on 248 plots with oak, beech, and spruce stands and mixtures of these species, with measured values of SOC. Our results show that autochthonous and mixed stands, in terms of tree species composition, in the study area had a higher SOC content than allochthonous and pure stands. In addition, it was found that autochthonous oak and beech stands, especially in mixtures, had a higher SOC content than allochthonous spruce stands (monocultures). On the basis of the presented results, it is possible to optimize the future tree species composition of stands in the study area, which currently have an allochthonous representation of spruce, to provide better function of carbon sequestration and resistance to climate change.

Effect of selective logging on the genetic differentiation of Juglans pyriformis Liebm. populationsOriginal Paper

Celia Cecilia Acosta-Hernández, Lourdes Georgina Iglesias-Andreu, Mauricio Luna-Rodríguez, Pablo Octavio-Aguilar

J. For. Sci., 2022, 68(12):509-518 | DOI: 10.17221/131/2022-JFS

Juglans pyriformis Liebm. (Juglandaceae) is a threatened and endemic tree that grows in the cloud forest of Mexico. Natural populations of this species have been reduced due to, among others, changes in land use, overexploitation, and logging, with probable effects on its genetic diversity and structure. To determine the levels of variation and genetic structure of two populations with different silvicultural regimes, six inter-simple sequence repeat (ISSR) primers were used to amplify DNA from 35 individuals from a high-logging population and 32 from a low-logging population. The results show a higher polymorphism in the low-logging population (81.5%) compared to the high-logging population (77.4%). The genetic differentiation coefficient (PhiPT) values (0.109), genetic distance (0.134) and STRUCTURE analysis (Fst = 0.2271, P = 0.04) show significant genetic differentiation between populations. Rare, private, and monomorphic bands were detected in both populations. These results confirm the trend of reduced genetic variation due to logging.

Application of FT-NIR spectroscopy as a rapid tool for analysis of the fish fillet chemical compositionOriginal Paper

Lucia Beneąová, Silvia Jakabová, Ladislav Ondruą, Jozef Golian

Czech J. Food Sci., 2022, 40(5):359-366 | DOI: 10.17221/30/2022-CJFS

The basic chemical composition of the meat of fifteen freshwater and saltwater fish species was studied. Fourier transform-near-infrared (FT-NIR) spectroscopy was applied for determination of the content of fat, protein and dry matter in the fish meat samples. The fish species analysed differed significantly in dry matter, fat, and protein content (P < 0.05). The highest fat percentage was determined in the samples of Cyprinus carpio (17.14 ± 0.53%) and the lowest value was found in the samples of Lophius piscatorius (0.06 ± 0.003%). Thunnus albacares samples had the highest content of proteins (24.26 ± 1.89%), whereas the lowest protein content was observed in Oreochromis niloticus (14.73 ± 0.87%). The results of the measured dry matter varied from the highest content in C. carpio samples (35.73 ± 0.47%) to the lowest content of L. piscatorius samples (15.64 ± 0.43%). Principal component analysis (PCA) extracted three major groups, which differentiate the analysed samples based on their protein, lipid and dry matter content. Partial least squares discriminant analysis (PLSDA) confirmed the use of three variables (protein, fat, dry matter) measured by FT-NIR to separate the observed fish species.

Pedogenesis problems on reclaimed coal mining sitesReview

Marko Spasić, Luboą Borůvka, Oldřich Vacek, Ondřej Drábek, Václav Tejnecký

Soil & Water Res., 2021, 16(3):137-150 | DOI: 10.17221/163/2020-SWR

Open-cast coal mining presents a big global issue because of the large areas the mines occupy, which get entirely changed. Their ecosystems lose most of their functions, and a huge amount of fertile soil gets utterly destroyed. Reclamation is a process of returning the functions of the soil after the excavation is finished, most commonly achieved by establishing vegetation, which can sometimes be very difficult. This happens due to the physical, chemical and biological changes that occur on these sites, which are described in this paper. Also, some directions for mitigating these problems are given. Once the vegetation is successfully introduced, natural cycles that were compromised by the mining are established once again, and the process of soil formation begins. Some trends and problems related to pedogenesis research on reclaimed mine sites are presented and discussed, along with presumptions of how the process of soil formation evolves on afforested clayey Technosols of central Europe. The potential future research which would confirm these presumptions is discussed, with the emphasis on the need of research performed on older reclamation sites, as well as sites with similar ecological conditions and different tree species cover.

Methods for monetary valuation of ecosystem services: A scoping reviewReview

Egor Selivanov, Petra Hlaváčková

J. For. Sci., 2021, 67(11):499-511 | DOI: 10.17221/96/2021-JFS

Adequate assessment of ecosystem services is important for the development of policies and management plans related to forestry activities and the environment. Carefully identified ecosystem values can determine which options policy makers should prioritize to provide the greatest benefit. There are numerous methods used by researchers to evaluate ecosystem services. The most widely applied methods are monetary valuation methods, they are often deemed to be the most pragmatic language when it comes to communication with political and business institutions. The main goal of this review is to analyse available literature using the methodology particular to the scoping review approach in order to identify and describe valuation methods that can be applied for monetary assessment of ecosystem services. As a result of the scoping review, over 20 monetary valuation techniques (including several less common methods such as willingness to sell and Delphi method) were derived from 16 literature sources. In the process of compiling the range of different methods, a few flaws and gaps in the communication of methods were observed such as lack of consistency in the names of different methods and mixing up concepts. In addition, a few areas for future research are suggested.

Clinical and radiographic evaluation of minimally invasive plate osteosynthesis (MIPO) in dogs with tibial fracturesOriginal Paper

C Istim, M Arican

Vet Med - Czech, 2022, 67(6):316-322 | DOI: 10.17221/42/2021-VETMED

The aim of this study was a clinical and radiographic evaluation of the minimally invasive plate osteosynthesis (MIPO) method for treatment in dogs with tibial fractures. Ten dogs of different breeds, ages, and sex with tibial fractures were used as the subjects. A medial approach to the tibia was used in all the cases. The tibial tuberosity was palpated proximally and a short incision was made along the midline. After reduction of the fracture, proximal and distal insertion incisions were made to approach the tibia. The mean times for the MIPO operations were 21 minutes. The patients were able to stand and walk postoperatively on the first day and recovery was rapid for all of the dogs. The fracture healing was completed on day 45 based on the radiographic evaluations of these cases. Dogs with tibia fractures treated by MIPO healed rapidly without any complications (90%). Correct fracture selection is important for the use of MIPO to be successful. Further studies with a larger group of dogs should be considered to compare the efficacy of MIPO and other fixation techniques and for the long-term evaluation of the repaired tibial fractures.

Adopting sustainable water management practices in agriculture based on stakeholder preferencesOriginal Paper

Juan Francisco Velasco-Muñoz, José Ángel Aznar-Sánchez, Belén López-Felices, Gabriella Balacco

Agric. Econ. - Czech, 2022, 68(9):317-326 | DOI: 10.17221/203/2022-AGRICECON

Technology has made it possible to achieve the very efficient use of water resources in agriculture. However, there are a set of practices that could increase both the availability and quality of the water resources, but which are not yet widely used. In view of the scarcity situation mainly produced by the consequences of climate change, the objective of this work is to analyse the adoption of sustainable irrigation management practices in agriculture. To this end, the aim is to identify and evaluate the variables involved in adopting sustainable practices in agriculture through the use of different qualitative research tools in successive phases (literature review, in-depth interviews, Delphi method and workshop). The results indicate that the sustainable practices to be adopted to improve water management in the study area are rainwater harvesting (RWH) and pond covering (PC). The main barriers are the costs, some farm characteristics and lack of research, while the facilitators include easy access to technology and the existence of farmer-to-farmer networks. Furthermore, the most influential stakeholders for these practices are the farmers, policymakers and researchers. Proposals for the adoption of sustainable water use practices have also been made consensually with all the involved agents.

Disease resistance of improved MR220 lines against Pyricularia oryzae Cavara and their preliminary agronomic performanceOriginal Paper

Siti Nor Aziemah Mohamad, Mohamad Bahagia Ab Ghaffar, Ahmad Sofiman Othman, Siti Norsuha Misman, Zuraida Abd Rahman, Mohd Shahril Firdaus Ab Razak, Zulkifli Ahmad Seman, Muhammad Fairuz Mohd Yusof, Khairulmazmi Ahmad, Siti Norhidaya Yazid, Habibuddin Hashim

Czech J. Genet. Plant Breed., 2022, 58(1):29-35 | DOI: 10.17221/55/2021-CJGPB

Blast disease caused by Pyricularia oryzae is one of the most destructive fungal diseases of rice in Malaysia. Utilisation of resistant varieties is the most efficient management approach towards reducing yield losses. The line IRTP21683 with the Pi9 gene has shown strong resistance against the isolate MPO988.3 of pathotype P0.0, the most prevalent P. oryzae pathotype in Malaysia. Crossing of IRTP21683 was undertaken with the recurrent parent MR220, a susceptible elite Malaysian rice variety, using a marker assisted backcrossing technique with two simple sequence repeat markers, RM19776 and RM7311, as the tag for the Pi9 gene. Twenty BC3F4 lines with the Pi9 gene were resistant when challenged with MPO 988.3. The cluster analysis based on seven agronomic parameters showed that the resistant BC3F4 lines could be divided into four groups, of which the members in group 1 and 2 have shown comparable or better performance than MR220. Five lines in group 1, B220PI9-3-48, B220PI9-3-76, B220PI9-3-77, B220PI9-3-79 and B220PI9-3-82 showed outstanding yield performance with early maturation.

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