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Conditions conducive to an epidemic of Gremmeniella abietina, European race, in red pine plantationsOriginal PaperG. Laflamme, D. RiouxJ. For. Sci., 2015, 61(4):175-181 | DOI: 10.17221/67/2014-JFS In North America, Gremmeniella abietina, European race (GaEU), was reported in 1975. Our objective was to follow the spread of GaEU on red pines growing on flat land and on slope. Annual height infection varied significantly on flat land, ranging from 60 to 110 cm in 1991 to 0 to 50 cm in 1992. On the slope, pines in the bottom were killed by the disease, but survived on the top. Favorable conditions follow a horizontal line about 10 m over the lower elevation and are probably related to fog or mist. The horizontal disease spread over a 3-year period was only 20 m and this is mainly explained by the absence of ascospores in North America. |
Causes and consequences of maternal age-related aneuploidy in oocytes: a reviewReviewA. Danylevska, J. SebestovaVet Med - Czech, 2013, 58(2):65-72 | DOI: 10.17221/6697-VETMED Although a positive correlation between aneuploidy and maternal age was first reported almost a century ago, the underlying mechanisms remain mostly unknown. Different hypotheses regarding age-related aneuploidy rise have been presented, but so far none of them can explain its full mechanism. Age-related aneuploidy is more likely to result from complex events taking place during the entire period of germ cell development, than from the failure of one particular mechanism. Recent findings confirm that the spindle assembly checkpoint (SAC) does not control and correct kinetochore-microtubule attachments in oocytes, enabling further propagation of aneuploidy, which has occurred in the earlier phases of oogenesis. In this review we will discuss the following hypotheses: the "limited oocyte pool" hypothesis, the "two hits" hypothesis, weakened centromeric cohesion and cohesin loss, different functions of the spindle assembly checkpoint and finally, changes in global gene expression. |
The Canine J waveOriginal PaperC.F. Agudelo, P. SchanilecVet Med - Czech, 2015, 60(4):208-212 | DOI: 10.17221/8109-VETMED The J wave is a deflection immediately following the QRS complex of the surface ECG. The J wave has been observed in humans under physiological and pathophysiological conditions. We describe in this paper the ratio of incidence of this phenomenon in healthy dogs and dogs with pathological disease and the effect of exercise on its size and shape. At rest, a J wave was observed at the R-ST junction of the ECG in 11 of 34 adult dogs, usually in leads I, II, III, aVR, and aVF and left lateral precordial leads. After a submaximal exercise test there were no variations in the shape or the size of the J wave. |
Equine ocular squamous cell carcinoma: a case reportCase ReportM. Drazek, M. Lew, S. Lew, J. Szarek, I. Balicki, L. Della SaldaVet Med - Czech, 2015, 60(7):379-386 | DOI: 10.17221/8386-VETMED An eight-year-old gelding, Wielkopolski Horse was presented with a pink tumour, which filled the entire palpebral fissure of the left eye. Ultrasonography revealed it to be well-demarcated from the cornea mass, which covered its entire surface. Due to the extensive size of the lesion and the lack of owner's consent to post-operative treatment, it was decided to perform enucleation. A histopathological examination revealed corneal squamous cell carcinoma (CSCC). The primary cause of the tumour has not been established. Immunohistochemistry was negative for p16 immunoreactivity which is typical for the E7 oncoprotein in PV infection, and is suspected of involvement in the aetiopathogenesis of ocular squamous cell carcinoma (OSCC). |
Fifty-year anniversary of Plant Protection ScienceOriginal PaperAleą LEBEDA, Věra Kroftová, Václav KŮDELA, Marcela BRAUNOVÁPlant Protect. Sci., 2014, 50(2):53-63 | DOI: 10.17221/29/2014-PPS In 2014, the journal Plant Protection Science (PPS) completes 50 years of publication (1965-2014). However, its roots extend back to the year 1921. Today, it is an international scientific journal focused on all aspects of plant protection sciences, fully published in English. This occasion offers a fitting opportunity to describe some of the most important historical stages of the journal's development. In our brief historical overview, we summarise the changes in journal title, chief-editors, and editorial policy during the last fifty years, and with an examination of its importance, scope and readership. We present analyses of the journal's development, some for the entire period of 1965-2013, while others are limited to more recent decades. The journal's present place among the world's scientific journals is documented by analyses in the international citation databases, BIOSIS CI, SCOPUS, and WOS. An analysis of three particular citation databases were made in October 2013, while the overall period 1998-2013 was conducted from All Databases/Thomson Reuters in March 2014. PPS is also included in other, important technical-literature databases, including Czech Agricultural and Food Bibliography, AGRIS/FAO database, AGRICOLA, CAB Abstracts, Current Contents, and Zoological Abstracts. Information about all of them is available in Ulrich's WEB database. In the final part of this paper, we summarise some recent achievements of the journal, and discuss some key topics related to its future development. |
Discrimination of storage periods for Macrocybe gigantea (Massee) using UV spectral fingerprintsFood Analysis, Food Quality and NutritionYan LI, Ji ZHANG, Hong-Gao LIU, Hang JIN, Yuan-Zhong WANG, Tao LICzech J. Food Sci., 2015, 33(5):441-448 | DOI: 10.17221/316/2014-CJFS Macrocybe gigantea (Massee) Pegler & Lodge is a species of edible mushrooms which has important nutritional, medicinal, and economic values. Discrimination of M. gigantea with different storage periods is helpful to guarantee the authenticity and to promote marketing of this species. We focused on the establishment of the fingerprints based on UV spectroscopy to discriminate the wild-grown M. gigantea samples stored for different years and to distinguish the wild-grown and cultured samples which were stored for the same years. The analyses of the data were performed by multivariate analyses such as principal component analysis (PCA) and cluster analysis (CA). UV spectral fingerprints showed that the major composition and content of the main components were significantly variable over time. All the M. gigantea samples which were stored for different years could be successfully grouped by PCA and CA. The results demonstrated that this qualitative assessment could be regarded as a rapid and reliable method for discrimination of M. gigantea with different storage times. |
Eyespot resistance gene Pch1 and methods of study of its effectiveness in wheat cultivarsScientific ReportsVeronika Dumalasová, Jana Palicová, Alena Hanzalová, Irena Bíľová, Leona Leiąová-SvobodováCzech J. Genet. Plant Breed., 2015, 51(4):166-173 | DOI: 10.17221/157/2015-CJGPB The scientific report presents results of our studies on the gene Pch1, conferring resistance to eyespot disease in wheat, caused by the fungus Occulimacula spp. The presence of the gene Pch1 in wheat cultivars was analysed using the molecular marker Xorw1. In total 106 wheat cultivars registered in the Czech Republic and 54 breeding lines were tested. The gene Pch1 was found in the cultivars Annie, Beduin, Hermann, Iridium, Manager and Princeps and in three breeding lines. Some of these cultivars were tested for eyespot resistance in field trials and showed a high level of resistance. Cv. Hermann was the most resistant winter wheat cultivar in our experiments in the last two years. The method of artificial infection by Oculimacula spp. was optimized. |
Chemical fractions and bioavailability of nickel in alluvial soilsOriginal PaperM. Barman, S.P. Datta, R.K. Rattan, M.C. MeenaPlant Soil Environ., 2015, 61(1):17-22 | DOI: 10.17221/613/2014-PSE The present study was undertaken to sequentially fractionate nickel (Ni) in soils of divergent physicochemical characteristics and evaluate the contribution of different fractions towards plant uptake. For this, fifteen bulk surface (0-15 cm) soil samples were collected from the cultivated fields of northwestern Indo-Gangetic alluvial plains. A pot experiment was conducted with these soils to assess the contribution of soil Ni fractions to plant uptake using soybean as test crop. Results showed that residual Ni was the most dominant fraction in soil constituting 3.19-63.6% of total Ni. The water soluble plus exchangeable Ni accounted for only 0.70-4.04% of total soil Ni. Organically bound Ni varied from 1.60-6.85% of total Ni; these values are relatively lower as compared to those reported for temperate soils. Correlation studies showed that the free iron oxide (Fe2O3) and soil organic carbon correlated with various fractions of Ni in soil. Water soluble plus exchangeable and organically bound are the dominant fractions which contributed positively and manganese oxide (MnO2) bound and residual fractions contributed negatively towards the phytoavailability of Ni in soil. |
The effect of sulphur fertilization on macronutrient concentrations in the post-harvest biomass of mustardOriginal PaperK.J. Jankowski, Ł. Kijewski, S. Krzebietke, W.S. BudzyńskiPlant Soil Environ., 2015, 61(6):266-272 | DOI: 10.17221/119/2015-PSE The aim of this study was to determine the effect of sulphur (S) fertilization on macronutrient concentrations in the roots, straw and oil cake of white mustard and Indian mustard. The experiment was conducted in northeastern Poland (2006-2008). The highest content of N, P, K, Mg and S was noted in the oil cake of both mustard species. Sulphur fertilization increased S concentrations and had no effect on Mg concentrations in the roots of white mustard and Indian mustard. Sulphur fertilizers applied to soil significantly increased the content of N, K and Ca in the roots of Indian mustard, whereas they had no significant effect on the content of N, P and Ca, and decreased K concentrations in the roots of white mustard. Sulphur fertilization led to a significant decrease in N content, and an increase in the content of K and Ca in the straw of both mustard species. Sulphur fertilization significantly decreased P concentrations and increased S concentrations in the oil cake of both mustard species. In response to S fertilization, the content of N and K decreased in the oil cake of Indian mustard, but did not change significantly in the oil cake of white mustard. Therefore, S fertilization significantly differentiated the fertilizing value of post-harvest residues and the feeding value of white mustard and Indian mustard seeds. |
Growth requirements of different potato cultivarsOriginal PaperR. Bernik, I. Demsar, J. PotrpinPlant Soil Environ., 2015, 61(12):553-559 | DOI: 10.17221/542/2015-PSE A field trial with four potato cultivars (Faluka, Manitou, Madeleine and Stirling) was conducted in two consecutive years (2012 and 2013) at a laboratory field of Biotechnical Faculty in Ljubljana. The aim of the study was to evaluate different requirements of the selected cultivars in regard to the ridge and tuber cluster. The following parameters were defined and monitored: area of the form surrounding the tubers (ellipse), cross-sectional area of the ridge, vertical and horizontal tuber span in the ridge, the length of semi-axes (a) and (b) of the ellipse, minimum distance of tubers and ellipse from the outer ridge side. The results of 2012 trial indicated that the minimal ellipse method defining the ellipse was not satisfactory as statistical significance was limited due to a large volume of vacant space in the ridge not occupied by potato tubers. Therefore, the mathematical model was upgraded in 2013 and a physical parameter (tuber mass) was incorporated in the equation to better depict the tuber cluster. The trials were designed as a randomized block with five repetitions. The largest ellipse, horizontal tuber span in the ridge and the longest semi-axis (a) were recorded for the cv. Manitou resulting in the highest yield. However, no statistical differences were recorded in the horizontal tuber span, the length of the semi-axis (a) or cross-sectional area of the ridge among cultivars analysed. It was determined that different cultivars require specific growth space in the potato ridge. Moreover, the newly developed method proved efficient for determining growth requirements of potato tubers in the ridge. |
Effect of replacing dietary FeSO4 with equal Fe-levelled iron glycine chelate on broiler chickensOriginal PaperR. Shi, D. Liu, J. Sun, Y. Jia, P. ZhangCzech J. Anim. Sci., 2015, 60(5):233-239 | DOI: 10.17221/8173-CJAS Iron (Fe) is an essential mineral for animal development and function. The present study was carried out to evaluate the effect of replacing FeSO4 with iron glycine chelate (Fe-Gly) in the equal Fe level in diets on broiler chickens. The broilers were randomly allotted to 6 dietary treatments with 5 replicate pens and 10 birds per pen. The treatments consisted of: Control group (100 mg Fe from FeSO4/kg diet), Experimental group 1 (80 mg Fe from FeSO4 + 20 mg Fe from Fe-Gly/kg diet), Experimental group 2 (60 mg Fe from FeSO4 + 40 mg Fe from Fe-Gly/kg diet), Experimental group 3 (40 mg Fe from FeSO4 + 60 mg Fe from Fe-Gly/kg diet), Experimental group 4 (20 mg Fe from FeSO4 + 80 mg Fe from Fe-Gly/kg diet), and Experimental group 5 (100 mg Fe from Fe-Gly/kg diet). The results showed that replacing FeSO4 with Fe-Gly in the diets did not significantly improve broiler growth performance (P > 0.05). But it significantly (P < 0.05) improved the blood biochemical parameters. Xanthione oxidase activity in blood serum showed no significant difference between all treatments at day 21 except for Experimental group 5 (P > 0.05). In addition, catalase activity in blood serum and Cu/Zn superoxide dismutase activity in liver were increased with the increasing replacement level of Fe-Gly (P < 0.05). But for all of the above indicators, the observed values of Experimental groups 3, 4, and 5 did not significantly differ (P > 0.05). This study indicates that replacing FeSO4 with Fe-Gly in the equal Fe level in the diets cannot improve the growth performance of broilers. But it can effectively improve the blood biochemical parameters and antioxidative enzyme activity. The least substitution ratio for low feeding cost and beneficial effect on the broilers was 60%. |
Structural homology and expression tendency of the natural immune response of the terminal complement components to inoculations in pigs: a reviewReviewD.V.A. KhoaVet Med - Czech, 2013, 58(1):1-9 | DOI: 10.17221/6650-VETMED The transmission of infectious agents from domestic animals to humans is a matter of particular concern at present. Inoculation can enhance the defences of each individual animal but only in the short term. Certainly, it will be of immense benefit if biotechnology and genetic techniques are applied to farm animal breeding and selection programs to improve productivity, performance and health status as well as for the construction of sustainable animal production systems and promotion of animal welfare. In recent years, efforts to drive candidate genes like cytokines, haptoglobin, complement system, C-reactive protein, a 2-macroglobulin, retinol binding protein, transcortin, and etc. associated with immune traits have successfully been studied in human and different animal species. Here, we compared the molecular structure and evaluated the expression tendency of the haemolytic complement activity (HCA) of porcine candidate genes encoding the terminal complement components (TCC) C6-9. The results suggested that (1) high homology of complement genes among mammalian species may open new ways in cure/ treatment of disease; (2) Muong Khuong animals (Vietnamese potbelly pig) have a great genetic potential to improve the health status of pigs; and (3) HCA in the classical pathway can be developed further by different activation modes, with the potential improvement of animal health. |
Computed tomography-guided cementoplasty combined with radiation therapy for an aneurysmal bone cyst in a dog: a case reportCase ReportM. Vignoli, L. Stehlik, R. Terragni, L. Cavallo, P. ProksVet Med - Czech, 2015, 60(2):109-114 | DOI: 10.17221/7986-VETMED Aneurysmal bone cysts are expansile osteolytic bone lesions that can manifest clinically as lameness, pain and swelling. In humans, aneurysmal bone cysts are considered benign tumours that have been classified as primary or secondary to a previous coexisting lesion. Local recurrence after treatment or malignant transformation has been reported in both humans and in a dog. Different treatment options have been proposed. This report describes the treatment of an 11-month-old Irish wolfhound with an aneurysmal bone cyst with a combination of computed tomography-guided cementoplasty and radiation therapy, 30 Gy delivered in 10 fractions. The dog recovered completely, with no lameness observed 30 months after treatment. |
Interaction of two neonicotinoid insecticides and Lr genes focusing wheat growth and residuesOriginal PaperZoran JERKOVIĆ, ®eljana PRIJIĆ, Radivoje JEVTIĆ, Mirjana LALO©EVIĆPlant Protect. Sci., 2015, 51(2):108-113 | DOI: 10.17221/35/2014-PPS Seedlings of ten Lr near-isogenic lines (NIL) and four wheat lines with enhanced resistance to Puccinia triticina were treated with overdosed neonicotinoid insecticides. The enzyme of Lr 20 gene accelerated thiacloprid degradation while Lr 29 gene accelerated thiamethoxam degradation according to NILs upper plant parts lengths reduction by 6% or 10% six days after the last of three daily treatments. Lr 27 and Lr 33 effects were intermediate on thiamethoxam but only in the driest conditions. Among other NILs the growth was increased 1-5% by N faster release of S or Cl. The accumulation of Lr 20 and Lr 9 facilitated treatment in the late grain filling period when the amount of their circled residues in seed was permissible. In semiarid regions, when thiamethoxam was applied before June, respecting the adequate leaf area duration of prevalent varieties, interaction with Lr 29 could be also practical through simultaneous release of fungi reducing elements. |
Evaluation of wheat/non-traditional flour compositeOriginal PaperTa»ana Hofmanová, Marie Hruąková, Ivan ©vecCzech J. Food Sci., 2014, 32(3):288-295 | DOI: 10.17221/311/2013-CJFS We examine the nutritional effect of selected non-traditional grain samples added into wheat flour. In a form of flour, amaranth, quinoa, lupine, 5 hemp types, 2 teff types and 2 chia types were used for wheat flour substitution on a low and high level. Samples with amaranth and lupine flour showed the best improvement in terms of protein content (in the range between 21.1 and 26.0%). The highest total dietary fibre was found in lupine composites (7.1 and 9.8%). Hemp samples contained a significant amount of minerals in comparison with the control wheat sample (from 1.16% to 1.98%). According to the above-mentioned differences, flour composites containing single tested grains were distinguished by principal component analysis. All examined plant materials could be recommended for wheat flour fortification in terms of nutritional improvement. The addition of non-traditional flours partially changed both the volume and shape of laboratory prepared bread correspondingly to the type and added amount. |
QTL mapping for adult-plant leaf rust resistance genes in Chinese wheat cultivar Weimai 8Original PaperJiazhen WANG, Zaifeng LI, Lingzhi SHI, Lin ZHU, Zhikuan REN, Xing LI, Daqun LIU, Syed Jawad Ahmad SHAHCzech J. Genet. Plant Breed., 2015, 51(3):79-85 | DOI: 10.17221/51/2015-CJGPB The wheat cultivar Weimai 8 is a good source of adult-plant resistance to leaf rust in China. In order to understand the genetic background of the resistance genes, 179 F2:3 families derived from the cross Weimai 8 and Zhengzhou 5389 (susceptible to leaf rust) were used to construct a linkage map. Results showed that there was a major QTL on chromosome 2AS, temporarily named QLr.hbau-2AS, responsible for the resistance. QLr.hbau-2AS from the resistant parent Weimai 8 was between the SSR markers Xcfd36 and Xbarc1138, with an interval length of 2.58 cM. In the 2010-2011, 2011-2012 and 2012-2013 crop seasons, it explained 25.79, 71.55 and 60.72% of the phenotypic variation, respectively. The location of QLr.hbau-2AS was close to the leaf rust resistance gene Lr37. However, they may not be the same since QLr.hbau-2AS has a different virulence test response from Lr37. This study identified two closely linked flanking molecular markers QLr.hbau-2AS and these molecular markers will help marker-assisted selection in breeding resistant cultivars in the future. |
Application of fluorescence spectrum to precisely inverse paddy rice nitrogen contentOriginal PaperJ. Yang, S. Shi, W. Gong, L. Du, Y.Y. Ma, B. Zhu, S.L. SongPlant Soil Environ., 2015, 61(4):182-188 | DOI: 10.17221/7/2015-PSE Paddy rice is important for Chinese agriculture and crop production, which largely depends on the leaf nitrogen (N) levels. The purpose of this study is to discuss the relationship between the fluorescence parameters and leaf N content of paddy rice and to test their performance in inversing N content of crops through back-propagation (B-P) neural network. In the correlative analysis of the fluorescence parameters and the N content, we found that the correlation between fluorescence ratios (F740/F685 and F685/F525 (F740, F685, F525 - intensity of fluorescence at 740, 685 and 525 nm, respectively)) and the N content (R2 are 0.735 and 0.4342, respectively) is weaker than that between the intensity of fluorescence peaks (F685 and F740) and N content (R2 are 0.9743 and 0.9686, respectively). Our studies show that the accuracy and precision of N content inversion which is acquired from the intensity of fluorescence peaks through the B-P neural network model are significantly improved (root mean square error (MSRE) = 0.1702, the residual changes between -0.1-0.1 mg/g) compared with the fluorescence ratio (MSRE = 0.3655, the residual changes from -0.3-0.3 mg/g). Results demonstrate that the intensity of fluorescence peaks can be as a characteristic parameter to estimate N content of crops leaf. The B-P neural network model will be serviceable approach in inversing N content of paddy leaf. |
Exchangeable silicon content of soil in a long-term fertilization experimentOriginal PaperW. Szulc, B. Rutkowska, M. Hoch, E. Spychaj-Fabisiak, B. MurawskaPlant Soil Environ., 2015, 61(10):458-461 | DOI: 10.17221/438/2015-PSE Based on a long-term fertilization experiment on a light soil, a study was conducted on the impact of varied fertilization on the levels of silicon forms available in the soil. It was shown that the exchangeable silicon content in the tested soil was very low, which can have a limiting effect on crop yields. Soil pH is a factor that significantly affects the exchangeable silicon content of the soil. Therefore, under the conditions of acidic soils, liming is a treatment that increases the level of silicon forms available to plants in the soil. |
Effect of orexin-A on prolactin secretion in lambs born under different photoperiod conditions - in vitro studyOriginal PaperE. Molik, M. Błasiak, T. Misztal, K. Romanowicz, D.A. Zięba-PrzybylskaCzech J. Anim. Sci., 2015, 60(1):33-37 | DOI: 10.17221/7909-CJAS The role of orexin-A in the regulation of prolactin secretion in lambs born in different photoperiods was determined. The experiment was conducted with 30 female lambs. Pituitary glands were collected from 40-day-old lambs in three different seasons (n = 10 per each season) and photoperiods (light (L) hours to darkness (D) hours): long (May - L 14 : D 10), intermediate (August - L 13 : D 11), and short (December - L 10 : D 14). At 40 days of age, the lambs were decapitated, and their pituitaries were dissected and cut in half along the longitudinal fissure so that each half contained both glandular and nervous parts. The in vitro incubation of the glands was performed for 3 h in Parker's medium at 37°C. In each season, the control pituitary glands (K1, K2, K3) were incubated in Parker's medium, while the experimental pituitary glands (Ox1, Ox2, Ox3) were incubated in medium containing 1000 ng/ml of exogenous orexin. The administration of orexin-A during the long photoperiod (May) caused a significant (P ≤ 0.01) increase in prolactin secretion during the first hour of incubation (Ox1: 47.56 ± 8.4 ng/ml vs K1: 36.08 ± 7.8 ng/ml). During the intermediate photoperiod (August), a significantly (P ≤ 0.01) higher concentration of prolactin was observed in the first hour of incubation in the Ox2 group than in the control group (K2). During the first hour of incubation in December, the prolactin concentrations were significantly (P ≤ 0.01) higher in the Ox3 group than in the K3 group. Orexin-A increased prolactin secretion from pituitary explants collected from lambs born under all investigated time-points. The study results indicate that orexin-A is a stimulatory factor of prolactin secretion in sheep. |
Species differentiation of thermotolerant Campylobacters based on distinctive banding patterns obtained by multiplex PCRFood Microbiology and SafetyLucie VONDRÁKOVÁ, Sabina PURKRTOVÁ, Jarmila PAZLAROVÁ, Kateřina DEMNEROVÁCzech J. Food Sci., 2015, 33(1):27-31 | DOI: 10.17221/267/2014-CJFS The differentiation of thermotolerant Campylobacter spp. on the species level (C. jejuni, C. coli, C. lari, and C. upsalien-sis) was provided. Identification is based on different banding patterns obtained for individual species during simple multiplex PCR where regions within the 23S rRNA gene are amplified using newly designed specific forward primers. |
Effect of drip irrigation and mulching on yield, water-use efficiency and economics of tomatoOriginal PaperS.K. Biswas, A.R. Akanda, M.S. Rahman, M.A. HossainPlant Soil Environ., 2015, 61(3):97-102 | DOI: 10.17221/804/2014-PSE This study investigated the combined effects of drip irrigation and mulches on yield, water-use efficiency and economic return of tomato. The treatments of the study comprised different combinations of three drip irrigation levels (100, 75 and 50% of crop water requirement, ETc) and two mulches (black polyethylene sheet and paddy straw). The yield and yield-contributing characters in the mulched treatments for all levels of irrigation were significantly higher compared to those in the unmulched treatments. The yield of tomato increased with the increasing amount of irrigation water in unmulched treatment. The trend was reversed when drip irrigation was coupled with mulches. The highest yield for each mulch (81.12 t/ha for polyethylene and 79.49 t/ha for straw) was obtained when 50% of water requirement was applied. With 100% water application, polyethylene-mulched treatment produced lower yield than the straw-mulched treatment. The highest water use efficiency of 592 kg/ha/mm was obtained with 50% water application under polyethylene mulch. The highest net return (US$ 7098/ha), incremental net return (US$ 1556/ha), and incremental benefit-cost ratio (7.03) were found for 50% water application with straw mulch. The study thus reveals that drip irrigation with mulch has an explicit role in increasing the land and water productivity of tomato. |
Assessment of risks in the field of safety, quality and environment in post-harvest lineOriginal PaperM. ®itňák, K. Kollárová, M. Macák, M. Prístavková, M. BoąanskýRes. Agr. Eng., 2015, 61(10):S26-S36 | DOI: 10.17221/23/2015-RAE The objective of this work is the evaluation of threats in the field of safety, fire safety, quality and environment in the post-harvest treatment of grain, with an emphasis put on pre-cleaning and drying of grain. The paper describes the technology of pre-cleaning and drying of grain. Risks for individual machines were evaluated using a failure mode and effects analysis (FMEA), which is used to evaluate the threats in terms of fire risk, occupational safety, the effect of machine on the quality of final product, and effect on the environment. We have proposed measures and solutions to eliminate or minimise the consequences of threats. Risk rates are evaluated before and after measures adopted. It can be stated based on the results that risk was successfully reduced to an acceptable level after adopting measures. |
Effects of soil cover and protective measures on reducing runoff and soil loss under artificial rainfallOriginal PaperYan ZHANG, Mingming FENG, Jianying YANG, Tingning ZHAO, Hailong WU, Changqing SHI, Yi SHENSoil & Water Res., 2015, 10(3):198-205 | DOI: 10.17221/137/2014-SWR The hazards from wind, sand, and soil erosion caused by human activities, such as residue slopes in abandoned urban mines, have resulted in a vicious circle of environmental degradation. Selecting the optimal protective engineering method in mountainous areas has become a major difficulty in recent years, and the primary goal of our research is to accelerate the process of ecosystem reconstruction to maintain water and soil quality. In this study, cover soil of 10, 20, and 30 cm in depth was spread on the 30° accumulation slopes composed of loose residue from the Huangyuan Quarry, Beijing, and combined with two protection measures: eco-bags and bamboo fences. Runoff and soil loss from the aboveground, soil and residue layers were measured under rainfall intensities of 30, 60 and 120 mm/h generated with a rainfall simulator. The results indicated that both eco-bags and bamboo fences decreased runoff and soil loss. Bamboo fences were better at intercepting water under low runoff, whereas soil loss was more strongly reduced by eco-bags. The analysis also demonstrated that the depth of soil cover had an effect on runoff and soil loss. These findings will enrich the understanding of the effects of human activities on surface mines and provide a scientific basis for the ecological restoration of mines using engineering methods. |
Comparison of the bond strength of oak (Quercus L.) and beech (Fagus sylvatica L.) wood glued with different adhesives considering various hydrothermal exposuresOriginal PaperP. Král, P. Klímek, D. DěckýJ. For. Sci., 2015, 61(5):189-192 | DOI: 10.17221/95/2014-JFS The investigation of the hydrothermal exposure effect on the glue-line strength is obvious when outdoor application of wood products is in option. In our research the bonding quality of oak (Quercus L.) and beech (Fagus sylvatica L.) wood was tested in different conditions according to EN 205. After each exposure the lap joint test specified the shear strength of wood bonded with PVAC and PU adhesive. In our research different behaviour concerning both types of adhesives and selected wood species was observed. The most significant decrease (-80%) of the shear strength was found when the PVAC was used to bond oak wood. Therefore the PVAC adhesive is most likely less suitable for the bonding of the block board in outdoor conditions. On the contrary, the best results in the same conditions were obtained by the oak when the polyurethane adhesive was used. It indicates that the PU adhesive is more suitable for the bonding of oak wood. Considering results of beech wood, there were not found this interaction. |
Penetrating eye injury in a dog: a case reportCase ReportM. Lew, S. Lew, M. Drazek, A. PomianowskiVet Med - Czech, 2015, 60(4):213-221 | DOI: 10.17221/8110-VETMED A four-year-old, male German Shepherd dog with severe pain in the left eye following a corneal perforation with a foreign body was examined. An ophthalmic examination revealed conjunctival hyperaemia and pancorneal dense oedema, preventing a diagnosis of deeper structures of the eye and lowered IOP. Vision testing was missing or impossible to detect. Ultrasonography showed a solid hyperechoic line protruding through the iris and lens into the vitreous and minor posterior lens displacement. The dog qualified for immediate surgical treatment. Intraoperative ophthalmic examination revealed a rupture of the anterior hyaloid membrane with vitreous herniation, posterior lens subluxation, lens capsule rupture and a torn iris. Partial iridectomy and intracapsular lens extraction (ICLE) was conducted. Slit-lamp biomicroscopy revealed iridodonesis and a gradual reduction of the corneal oedema, leading to complete transparency in the bottom two-thirds of the area on Day 12 after surgery. Direct and consensual PLR was sluggish and the dazzle reflex was positive. An electroretinographic examination confirmed normal activity of the retina. |
Pea Fusarium wilt races in western AlgeriaOriginal PaperAoumria Merzoug, Lakhdar Belabid, Mokhtar Youcef-Benkada, Fouzia Benfreha, Bassam BayaaPlant Protect. Sci., 2014, 50(2):70-77 | DOI: 10.17221/20/2013-PPS The fungus Fusarium oxysporum f.sp. pisi (FOP), the pea wilt pathogen, causes appreciable yield losses under favourable environmental conditions in Algeria. Studies on the pathogen variability and distribution of races are essential to identify effective sources of resistance to this disease. In this study, a survey was conducted during the period 2007-2011 in four different agro-climatic zones. Pathogenic variability in 52 isolates of FOP, collected from different pea-growing areas of western Algeria, were evaluated using 7 genotypes as differential hosts. Results indicated that the disease was prevalent in all fields prospected and isolates obtained were assigned to Races 1, 2, 5 or 6 by their pathogenicity. It was found out that Races 1 and 2 were more common in all areas with 61.5 and 19.2%, respectively. This study is the first report of pea Fusarium wilt races distribution in Algeria. |
Seed transmissibility of viruses in winter squash landraces collected from the Black Sea region of TurkeyOriginal PaperMehmet A. SEVIK, Ahmet BALKAYAPlant Protect. Sci., 2015, 51(4):195-199 | DOI: 10.17221/6/2015-PPS The presence of seed-borne viruses in winter squash landraces in the Black Sea region of Turkey were detected. The seed samples of landraces were tested by ELISA for Cucumber mosaic virus (CMV), Zucchini yellow mosaic virus (ZYMV), Squash mosaic virus (SqMV), Tobacco ring spot virus (TRSV), and Cucumber green mottle mosaic virus (CGMMV). Based on the ELISA results, 11.3% of the samples were infected with the viruses; ELISA, CMV was found at the rate of 5.1% in the winter squash samples, while incidence of ZYMV was determined as 6.2%. Moreover, none of the plants germinated from seeds were found to be infected with SqMV, TRSV, and CGMMV. This is for the first time that seed-borne viruses of winter squash landraces have been identified in the Black Sea region of Turkey. |
Heavy metal concentration and the occurrence of selected microorganisms in soils of a steelworks area in PolandOriginal PaperA. Lenart-Boroń, K. Wolny-KoładkaPlant Soil Environ., 2015, 61(6):273-278 | DOI: 10.17221/217/2015-PSE This study was aimed to determine the impact of risk element content on the prevalence of the selected microbial groups in industrial soils of one of the steelworks in Poland. The concentration of heavy metals: Cd, Cr, Cu, Hg, Fe, Ni, Pb and Zn along with soil pH and the number of mesophilic bacteria, fungi, actinomycetes and Azotobacter was assessed in 20 soil samples. The limit concentrations of Cd, Pb and Zn were exceeded in five sites. However, even in these strongly contaminates sites, the studied microorganisms were abundant. The correlation between the concentration of heavy metals and microbial numbers was very weak and statistically insignificant. High numbers of fungi were observed in the contaminated sites, which was particularly interesting in one of the sites, strongly contaminated with Cd, Pb and Zn. |
Effects of bovine colostrum on performance, survival, and immunoglobulin status of suckling piglets during the first days of lifeOriginal PaperM. Viehmann, C. Unterweger, M. Ganter, B.U. Metzler-Zebeli, M. Ritzmann, I. Hennig-PaukaCzech J. Anim. Sci., 2015, 60(8):351-358 | DOI: 10.17221/8404-CJAS Supplementation of bovine colostrum (BC) has shown to improve growth performance, intestinal development, and immune response in early-weaned pigs. Little is known about whether BC may have similar effects in neonatal piglets. In the present study, the effect of BC supplementation on mortality, growth performance, and blood parameters (plasma proteins and white blood count) of suckling piglets in the first 10 days of life was investigated under practical conditions with special emphasis on low birth weight piglets. In total, 258 newborn piglets from 30 multiparous sows in a commercial breeding unit were randomly assigned to two different treatment groups. Piglets received either 1 ml of BC orally on days 1-3 of life (group BC, n = 128) or 1 ml of saline (0.9%) (control (CON) group; n = 130). Body weight was measured on days 1, 4, and 10 of life. Blood was collected on days 1 and 4 from 60 piglets per group. No differences in mortality, body weight, and average daily weight gain were observed between treatment groups in days 1-10. However, compared to CON, particularly in low birth weight piglets the administration of BC supported (P < 0.01) their survival. Group BC exhibited lower plasma total protein (P = 0.03) and beta-globulin (P = 0.02) concentrations compared to group CON. In conclusion, BC improved low and normal birth weight piglets' survival during their first 10 days of life. Further research is needed to clarify whether the survival rate is related to earlier gut closure indicated by lower plasma protein levels, which might be beneficial due to a lower uptake of potential antigenic substances. |
Hydrothermal carbonization of stabilized sludge and meat and bone mealOriginal PaperJ. Malaȇk, T. DlabajaRes. Agr. Eng., 2015, 61(1):21-28 | DOI: 10.17221/59/2013-RAE Hydrothermal carbonization is one of suitable methods for energy recovery of sewage sludge and meat and bone meal. The task of the article is to determine appropriate hydrothermal carbonization process conditions and their impact on the quality of the final product - so called biochar or hydrochar. Parameters of the two main phases - initiation and polymerization - were monitored. The basic fuel properties of the final solid products of hydrothermal carbonization were determined. To produce biochar by hydrothermal carbonization, multifunctional pressure vessel with accessories was used - a batch reactor BR-300. Process parameters of hydrothermal carbonization confirm the effect of increasing temperature to increase the lower heating value (LHV). Neither calorific values of meat and bone meal (17.22 MJ/kg), nor calorific values of digested stabilized sludge (12.14 MJ/kg) showed a significant increase after undergoing processing. The effect of reaction temperature on the LHV of the final product is significantly higher than that of residence time. The results show that the main factor affecting LHV of the fuel sample is the final amount of ash. Unlike the meat and bone the hydrothermal carbonization of the stabilized wastewater sludge is one of the effective processing methods for subsequent energy use. |
