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Results 271 to 300 of 5716:

Monitoring surface water pollution in Algeria using database indicesOriginal Paper

Ouahiba Bouchama, Lounes Amar

Soil & Water Res., 2025, 20(1):43-51 | DOI: 10.17221/83/2024-SWR

This study investigated how remote sensing techniques can pinpoint pollution in surface water areas. Researchers focused on the municipalities of Boumerdes, Corso, and Tidjalabine in Algeria’s Boumerdes province. The team used geographic information systems (GIS) to analyse pollution levels and their spatial distribution. Specifically, they employed the Normalised Difference Vegetation Index (NDVI) to identify areas teeming with biodiversity and healthy vegetation. Furthermore, the compactness index provided insights into the overall evolution of the drainage network. This data proved invaluable in identifying areas likely impacted by pollution. Our study is part of a scientific approach to detecting, monitoring, and intervening in water pollution. The core objective was to develop an alternate approach to protecting productive farmland and populated areas by mitigating pollution in these susceptible zones. The NDVI and compactness index, along with their associated database, hold significant promise for environmental preservation efforts. This spatial procedure effectively maps the spatial temporal distribution of pollutants, providing targeted management strategies. The method’s user-friendly nature makes it easily applicable in other African countries.

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.

Phylogenetics of native conifer species in Vietnam based on two chloroplast gene regions rbcL and matKOriginal Paper

Mai Phuong Pham, Viet Ha Tran, Dinh Duy Vu, Quoc Khanh Nguyen, Syed Noor Muhammad Shah

Czech J. Genet. Plant Breed., 2021, 57(2):58-66 | DOI: 10.17221/88/2020-CJGPB

We used two chloroplast gene regions (matK and rbcL) as a tool for the identification of 33 local conifer species. All 136 sequences, 101 newly generated (14 species for gene matK; 16 species for gene rbcL) and 35 retrieved from the GenBank, were used in the analysis. The highest genetic distance (matK region) was recorded between the species in Cupressaceae with an average of 5% (0.1-8.5), Podocarpaceae with an average of 6% (0-8.5), Taxaceae with an average of 5% (0.2-0.5) and Pinaceae with an average of 20.4% (0.8-54.1). The rbcL region showed a low genetic distance between the species in Cupressaceae 2% (0-3.3), Podocarpaceae 3% (0.6-3.4), Taxaceae 1% (0-2.1) and Pinaceae 1.2% (0-5.82). The phylogenetic analyses using the Maximum likelihood (ML) and Bayesian inference (BI) bootstrap values obtained at the branching nodes of each species ranged from 62 to 100% (Maximum likelihood bootstrap - MLBS and Bayesian posterior probabilities - BPP) for the matK gene; from 66 to 100% (MLBS) and 60 to 100% (BPP) for the rbcL region. The rbcL region was not identified between the species of Taxaceae and Cephalotaxaceae. The matK gene region was very clear in the different species among the families (Cupressaceae, Podocarpaceae, and Cephalotaxaceae) and unsuitable for identifying closely related species in Amentotaxus (Taxaceae) and Pinus (Pinaceae). The gene (matK) is a useful tool as a barcode in the identification of conifer species of Cupressaceae, Podocarpaceae, and Cephalotaxaceae in Vietnam.

Prenatal effects of red and blue light on physiological and behavioural parameters of broiler chickensOriginal Paper

Angelika Drozdová, Zuzana Kaňková, Boris Bilčík, Michal Zeman

Czech J. Anim. Sci., 2021, 66(10):412-419 | DOI: 10.17221/80/2021-CJAS

Light during incubation can influence embryonic and postembryonic development of chickens, but the underlying mechanisms are poorly understood. Previous studies have demonstrated that red and blue lights during incubation had opposite effects on the development of embryonic melatonin biosynthesis; red light results in the highest and blue light in the lowest amplitude of the daily rhythm. Therefore, in this study, we investigated if exposure to monochromatic red (632 nm) and blue (463 nm) light during incubation can differently influence growth, selected biochemical (glucose, cholesterol, triacylglycerols) and endocrine (corticosterone and thyroid hormones) traits and behavioural parameters during postembryonic development in broiler chickens. For analysis, we used 10 and 11 hatchlings incubated in red and blue light, respectively and 10 birds per each group (six males and four females) in 3-weeks-old broilers. During the rapid growth phase (days 18, 20 and 21 of age), higher body weight was recorded in broilers incubated under red compared to blue light, whereas endocrine and metabolic traits did not differ between the treatments. The improved growth rate was related to behavioural traits, mainly because chickens incubated in red light exhibited more passive (resting, standing, preening, dust bathing) and less active behaviours (walking, foraging, fighting, wing-flapping) than the blue-light incubated birds. The time spent for eating and drinking and the results of the tonic immobility test did not differ between both groups. Our results suggest that red and blue monochromatic light during incubation can differently program the postembryonic development of broilers, with possible consequences for their growth and welfare.

Effects of nitrogen addition on root traits and soil nitrogen in the long-term restored grasslandsOriginal Paper

Guanghua Jing, Zhikun Chen, Qiangqiang Lu, Liyan He, Ning Zhao, Zhao Zhang, Wei Li

Plant Soil Environ., 2021, 67(9):541-547 | DOI: 10.17221/142/2021-PSE

Fine root traits are plastic and responsive to increased nitrogen (N) deposition. However, with the restoring of the ecosystem after grain for green, little research has been reported about the response of root traits in a long-term restored ecosystem to increased N deposition. Therefore, a successive N addition experiment was conducted in a long-term restored grassland on the Loess Plateau to analyse the effects of different N addition levels (0, 2.5, 5, 10, 20 g N/m2/year) on root morphological traits, soil carbon (C) and N. Our results showed that root morphological traits (except for root diameter) firstly increased and then declined, with the maximum in the N level of 5 g/m2/year. N addition significantly increased soil organic carbon, total nitrogen, ammonium nitrogen (NH4+-N) and nitrate-nitrogen (NO3--N) with the increasing N addition level, especially in the soil surface layer. Specific root length and specific root area had remarkable negative correlations with NO3--N, while root diameter and root length density had positive correlations with soil availability N and soil microbial biomass carbon. This study indicated that plants could have the threshold response to adapt to the N addition and prefer to slowly grow rather than quickly invest and return in order to adapt to the environmental stress.

Crop sequence effects on energy efficiency and land demand in a long-term fertilisation trialOriginal Paper

Gerhard Moitzi, Reinhard W. Neugschwandtner, Hans-Peter Kaul, Helmut Wagentristl

Plant Soil Environ., 2021, 67(12):739-746 | DOI: 10.17221/440/2021-PSE

The effect of crop sequences (CR - continuous winter rye; CropR - three-field crop rotation of winter rye-spring barley-bare fallow) and fertilisation systems (unfertilised control, mineral fertiliser (NPK), farmyard manure (FYM)) on crop yield, energy efficiency indicators and land demand were analysed in a long-term experiment under Pannonian climate conditions. Due to lower fuel consumption in the bare fallow, the total fuel consumption for CropR was 27% lower than in CR. It was for NPK and FYM fertilisation by 29% and 42% higher than in the control. Although the energy output was lower in CropR than CR, the energy use efficiency for grain production increased by 35% and for above-ground biomass production by 20%. Overall crop sequences, the NPK treatment had higher crop yields, energy outputs and net-energy output with a lower energy use efficiency than the unfertilised control. CropR increased the land demand just by 20% in comparison to CR, although one-third of the land was not used for crop production. The land demand could be decreased with fertilisation by 50% (NPK) or 48% (FYM). A bare fallow year in the crop rotation decreased the crop yield, energy input and increased the energy use efficiency and land demand.

Using new computer based techniques to optimise energy consumption in agricultural land levellingOriginal Paper

Salim Almaliki, Nasim Monjezi

Res. Agr. Eng., 2021, 67(4):149-163 | DOI: 10.17221/20/2021-RAE

Land levelling is one of the most energy-demanding steps in soil preparation. There are many limiting factors for a specific land levelling operation, such as fertile topsoil conservation, limited allowed slope, specific cut to fill ratio, etc. These limitations make optimisation problems of land levelling even more complicated. In this research, three computational and evolutionary methods including ICA, PSO, GA along with MLS were utilised as optimisation methods to minimise the soil cut and fill volumes and to determine the preferred levelling plane. The results indicated that ICA had the most efficient solution for the energy optimisation in the land levelling among the other investigated methods by saving 29% (17 GJ) of the total energy consumption compared with MLS. This study deals with optimising the energy consumption during land levelling projects using new computer-based techniques and compares them to the MLS method as a benchmark. All in all, ICA, PSO, and GA performed much better than MLS by saving 29, 17, and 10% of the total energy consumption in their best model (number 1 models), respectively. Nonetheless, with these great capacities for saving energy in developing countries, unfortunately, the lack of education and excess subsidies on fossil fuels nullify these potentials.

Forest certification management experience in Asia Pacific and Europe: A case study of Malaysia and SwedenOriginal Paper

Shah Badri Mohd Nor, Ahmad Fariz Mohamed, Shamsul Khamis

J. For. Sci., 2025, 71(6):269-285 | DOI: 10.17221/3/2025-JFS

The forest certification is a voluntary programme to ensure that the timber harvested from forests is processed in a sustainable manner by following specific standards. The Programme for the Endorsement of Forest Certification (PEFC) was introduced in 1999 using the bottom-up approach, and it gives flexibility for a country to set up their own PEFC standard based on current practices in sustainable forest management (SFM), regulation, and governance. This practice has led to the development of various PEFC standards for each country; thus, the impact of PEFC certification differs from country to country. In accordance with that, this study aimed to evaluate the PEFC standard application in developed and developing countries, namely in Sweden and Malaysia. The study also analysed the impact of forest certification on governance and economic aspects within Asia Pacific and Europe. The outcome of this study indicates that the PEFC standards developed by these countries showed similarities; for example, both countries are focusing on social and environmental requirements. Meanwhile, the differences were shown in the criteria, terms used, and the focus area. The impact analysis exhibited that countries are facing similar issues, especially market access and premium prices. This study revealed that each country develops different standards based on current practices, forest diversification, and regulations.

Humic acid ameliorates phytoremediation, plant growth and antioxidative enzymes in forage turnip (Brassica rapa L.)Original Paper

Sibel Boysan Canal, Mehmet Ali Bozkurt, Hilal Yílmaz

Plant Soil Environ., 2023, 69(12):567-576 | DOI: 10.17221/394/2023-PSE

In this study, the effects of ethylenediaminetetraacetic acid (EDTA) and humic acid (HA) chelate applied to soils contaminated with heavy metals on the development, antioxidant defence system, and phytoremediation of forage turnip (Brassica rapa L.) were investigated for the first. Three doses of EDTA (E1: 5 mmol/kg, E2: 10 mmol/kg, E3: 15 mmol/kg) and three doses of HA (HA1: 500 mg/kg, HA2: 1 000 mg/kg, HA3: 2 000 mg/kg) were applied to soils contaminated with heavy metals (Cd, Pb, Zn, and Cr) in the pot. According to experiment results, HA application as chelate to the polluted soil caused a significant increase in the growth of forage turnip. Phytoremediation values of the plant for Cd heavy metal were found to be BCFshoot, BCFroot > 1, and translocation factor > 1. This result proved that forage turnip has Cd accumulating properties. Also, HA application caused a decrease in H2O2 (46%) and malondialdehyde (6%) levels and antioxidative enzyme activity in polluted soil. It has been concluded that humic acid improves the oxidative stress conditions in the plant and is more effective in the development and growth of the plant than EDTA, so that it can be used effectively in phytoremediation studies.

A case of diquat poisoning in pigsCase Report

Z Siroka, M Svoboda, Z Svobodova, I Nagl

Vet Med - Czech, 2019, 64(11):505-511 | DOI: 10.17221/87/2019-VETMED

Diquat is a bipyridyl compound which belongs to the group of herbicides. Its activity is based on the liberation of the superoxide anion radical and, subsequently, hydrogen peroxide, leading to tissue destruction by oxidative stress. Acute poisoning is associated with high mortality within several hours to a few days. The reported case of poisoning occurred on a commercial farm. The fattening pigs of the Landrace and Large White breeds were affected. The pigs were kept on a deep litter. Reglone (active ingredient diquat dibromide, 200 g/l) was used on the farm fields to desiccate the clover crop. The dry clover straw was harvested and stored for approximately a month and then used as a litter. In total, 50 pigs were affected. The onset of the poisoning was very fast. Within eight hours after the litter administration, 20 animals died. The only clinical sign seen was severe haemorrhagic dermatitis. The pathological examination revealed acute superficial haemorrhagic dermatitis on the belly, the snout and the ears of the affected pigs. Hyperaemia of the tonsils, pharynx and oesophagus was diagnosed, as well as a pronounced hyperaemia of the stomach fundus. In the distal part of the trachea, there was a dense, white foam. The lungs were congested, with focal emphysema. The liver was slightly hyperaemic. The histological examination revealed a massive haemostasis in liver and diffuse acute polymorphonuclear hepatitis. The other organs were without changes. The examination revealed acute poisoning caused by the large body surface areas contacting with a toxic substance. The pigs that survived were immediately removed to a non-contaminated area. The changes on their skin were not so extensive compared to the dead ones. Within 5-7 days after the exposure to diquat, the skin lesions healed.

The effect of mineral fertilisers and farmyard manure on grain and straw yield, quality and economical parameters of winter wheatOriginal Paper

Lukáš Hlisnikovský, Milan Vach, Zdeněk Abrham, Ladislav Menšík, Eva Kunzová

Plant Soil Environ., 2020, 66(6):249-256 | DOI: 10.17221/60/2020-PSE

In the years 2011-2014, winter wheat grain yield, qualitative and economic parameters were evaluated according to different fertiliser treatments: (1) control: unfertilised treatment; (2) farmyard manure (FYM) and (3) FYM + NPK (farmyard manure applied together with mineral NPK). The highest yields (8.10 t/ha) were recorded in the FYM + NPK treatment, while significantly lower yields (6.20 t/ha and 5.73 t/ha) were recorded in FYM and control treatments, respectively. Similarly, statistically significantly higher values of the quality parameters were found in the FYM + NPK treatment (13.55% of crude protein content and 43.56 mL of Zeleny's sedimentation test), compared to control (10% and 22.44 mL, respectively). The modelling expert system (AGROTEKIS-Crop Technology and Economy) was used for the evaluation of economy. This software is based on technological methods of cultivation and norms of material input costs and costs of individual mechanised works. The economic benefits and profitability were evaluated for three different levels of grain market price. The highest gross profit per ha was recorded in the FYM + NPK treatment. According to the gross profit, the control treatment provided better results than the FYM treatment.

Corrigendum: Computed tomographic visualisation and 2D/3D microscopic evaluation of soil macro- and micromorphologyCorrigendum

Lubica Pospíšilová, Jana Plisková, Victory Armida Janine Jaques, Tomáš Zikmund, Luboš Sedlák, Aleš Eichmeier, Aleš Klement, Radka Kodešová, Luboš Borůvka, Jozef Kaiser, Ladislav Menšík

Soil & Water Res., 2025, 20(1):69 | DOI: 10.17221/2/2025-SWR

Australia's transition to management of myrtle rustShort Communication

C. Howard, V. Findlay, C. Grant

J. For. Sci., 2015, 61(3):138-139 | DOI: 10.17221/20/2014-JFS

Puccinia psidii sensu lato was detected in Australia in 2010 causing myrtle rust. A nationally cost-shared eradication program was conducted based on well-established emergency response arrangements for incursions of emergency plant pests into Australia, but it was ultimately decided that the pest was not eradicable from Australia. At this time, no formal mechanisms existed to provide a clear path for decision making and cost-sharing when transitioning from an eradication focus to long-term management of a plant pest. In 2011, the Australian Government established and funded a set of pilot transition to management programs for a number of noneradicable pests, one of which was for the myrtle rust pathogen, with the goal of using the outcomes of the pilot programs to guide the ongoing development of formal transition arrangements.

Optimisation of diallyl disulfide concentration and effect of soil condition on urease inhibitionOriginal Paper

M. Devendran Manogaran, Nurlidia Mansor, Nur Mahfuzah Noor Affendi, Lavania Baloo, Nurliana Farhana Salehuddin

Plant Soil Environ., 2020, 66(2):81-85 | DOI: 10.17221/617/2019-PSE

Diallyl disulfide (DADS) is an organosulfur compound that is expected to exhibit inhibitory property against urease similar to allicin, affirmed through preliminary study. The research aims to optimize DADS's concentration and duration of inhibition and observe the effect of soil moisture, temperature and pH on the inhibitory action of DADS. The calorimetric method was applied to optimize DADS's concentration significant for inhibition. High-performance liquid chromatography was used to quantify DADS present under different parameters relevant to selected soil conditions. The results obtained suggested that 5% of DADS/urea-N (w/w) treatment exhibited the highest urea hydrolysis reduction by 27.91% compared to the control sample at the end of 30 days. ANOVA results observed urea hydrolysis is significantly slower by applying 5% DADS/urea-N (w/w) treatment compared to the other DADS treatments. DADS also retained its original form longer in soil when the soil conditions were altered to 15% moisture content, 20 °C and pH 4. The findings exhibit the potential of DADS as a natural based inhibitor that is effective at low concentrations, compatible with urea and chemically stable.

In vitro storage of plum germplasm by slow growthOriginal Paper

S. Gianní, F. Sottile

Hort. Sci. (Prague), 2015, 42(2):61-69 | DOI: 10.17221/186/2014-HORTSCI

In this study, in vitro slow growth storage was investigated in four cultivars of two Sicilian (Southern Italy) plum species (Prunus domestica L. and Prunus cerasifera Ehrh. - two genotypes each). Established shoot cultures were preserved at 4°C in the dark in a Murashige and Skoog basal medium containing one of two different concentrations of sucrose (20 and 30 g/l) and with or without growth regulators. We tested the effects of cold storage, genotype and media on survival and re-growth capacity of explants after 3, 6, 9 and 12 months of storage. Effective minimal growth under cold conditions occurred in all four genotypes. The media composition did not affect survival, which, instead, appeared to be genotype-dependent. P. domestica genotypes survived cold storage the longest, for 12 and 9 months; instead, P. cerasifera ones remained viable for up to 6 months. All genotypes retained proliferation capacity under standard conditions and their re-growth capacity seems to be strongly genotype-dependent, closely related to their individual performance in response to the experimental condition of storage.

LIST OF REVIEWERS – 2024Index

Editorial Department

Soil & Water Res., 2025, 20(1):I

Clinicopathological characteristics of cats with signs of feline lower urinary tract disease in the Czech RepublicOriginal Paper

S Kovarikova, V Simerdova, M Bilek, D Honzak, V Palus, P Marsalek

Vet Med - Czech, 2020, 65(3):123-133 | DOI: 10.17221/146/2019-VETMED

A total of 214 cats with signs of feline lower urinary tract disease (FLUTD) were assessed in this study. There were 81.30% males (82.20% of them neutered) and 18.70% females (80.00% of them spayed) with an age range from 9 months to 17 years (mean 5.1 ± 3.7). Most of the cats (111; 51.90%) were diagnosed with feline idiopathic cystitis; in 57 (26.60%) cats, uroliths were detected. A urinary tract infection (UTI) as well as urethral plugs were diagnosed in 23 cats (10.75%). In 100 cats, a non-obstructive form of feline lower urinary tract disease (FLUTD) was present; in 114 cats (exclusively males) a urethral obstruction was diagnosed. Most of the cats (141; 65.90%) were indoor-housed. The cats with the UTI were significantly older when compared to the other cases of FLUTD. The most common clinical signs reported by the owners were dysuria (39.70%), oliguria/anuria (31.30%), and vomiting (24.80%). In the cats with the urethral obstruction, oliguria/anuria and non-specific systemic signs were dominant whereas in the non-obstructive form, signs of a lower urinary tract disease were more frequent. The urine specific gravity ranged from 1.008 to 1.080, while in the cats diagnosed with UTI, it was significantly lower than the other cats. Haematuria was the most common finding within the urinalysis which was diagnosed in 181 cats (84.60%): macroscopic haematuria was present in 94 patients (43.90%), microscopic haematuria was present in 87 cats (40.70%). Pyuria was found in 36 cats (16.80%). In the UTI cats, the most common bacterial isolate was E. coli. Results of our study are in agreement with previous reports of FLUTD in various countries, with idiopathic cystitis as the most common cause.

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.

Trichoderma asperellum improves soil microenvironment in different growth stages and yield of maize in saline-alkaline soil of the Songnen PlainOriginal Paper

Jian Fu, 3, Yao Xiao, Zhihua Liu, Yifei Zhang, Yufeng Wang, Kejun Yang

Plant Soil Environ., 2020, 66(12):639-647 | DOI: 10.17221/456/2020-PSE

The Songnen Plain is an important agricultural base in China and one of the important areas of distribution of saline-alkaline soils in the cold region. Saline-alkaline soils severely restrict maize growth. This study was to potentially promote the soil nutrient in the maize rhizosphere, microbes diversity, and maize yield by Trichoderma asperellum in saline-alkaline soil of the cold region. In the present study, we applied different amounts of T. asperellum in field experiments for three consecutive years. High-throughput sequencing was used to analyse the impact of Trichoderma on microbes diversity in maize rhizosphere soils. Changes in crop yield and soil nutrients were also monitored. T. asperellum treatment significantly increased the relative abundance of beneficial microbes genera. In the control treatment, the pathogenic microbes were the dominant genera. Pearson's correlation analysis revealed that changes in the soil microbial community composition were closely related to soil nutrients and were highly correlated with T. asperellum treatment concentration. Further, T. asperellum treatment increased crop yield by 4.87-20.26%. These findings suggest that T. asperellum treatment optimised the microenvironment of the maize rhizosphere soil, alleviated microbial community degeneration in cold region saline-alkaline soil, and promoted maize growth.

Improving drainage conditions of forest roads using the GIS and forest road simulatorOriginal Paper

Mehran Nasiri, Behnaz Askari

J. For. Sci., 2020, 66(9):361-367 | DOI: 10.17221/16/2020-JFS

In this study a new method of locating culverts is presented with the composition of achieved discharge from hydrological analysis and simulated forest roads in RoadEng 3D simulator to improve drainage condition. Locating culverts was performed on a small scale (1:20 000, using GIS) and large scale (1:2 000, road geometric design simulator). The small-scale study regarding the achieved discharge from streams shows that the installation of some culverts is not necessary. The large-scale study also showed that the geometric design of forest road has a significant effect on locating culverts and its accuracy. To improve drainage conditions 6 culverts and 2 waterfronts taking into account the geometric design of forest road, hydrological conditions and appropriate intervals (155 m) have been proposed. No installation or lack of accuracy to find the best location of culverts may result in the occurrence of creep and landslide, so the cost of destruction would be several times higher than the cost of technical buildings construction.

LED lighting affected the growth and metabolism of eggplant and tomato transplants in a greenhouseOriginal Paper

Renata Wojciechowska, Anna Kołton, Olga Długosz-Grochowska, Edward Kunicki, Katarzyna Mrowiec, Paweł Bathelt

Hort. Sci. (Prague), 2020, 47(3):150-157 | DOI: 10.17221/78/2019-HORTSCI

Light-emitting diodes (LEDs) were used for the spring greenhouse cultivation of eggplant (Solanum melongena L.) 'Milar F1' and tomato (S. lycopersicon L.) 'Benito F1' transplants. Seedlings were grown under natural light conditions with the supplemental LED light. A 16-h photoperiod provided plants with a DLI of 12.6 (eggplant) and 9.6 (tomato) mol m2/day. Four supplemental light spectra were tested: L1 (90% red + 10% blue); L2 (80% red + 20% blue); L3 (43% red + 42% blue+15% green) and L4 (56% red + 26% blue + 15% green + 3% UV-A). The PPFD in each LED light treatment was 150 ± 20 µmol/m2.s. Compared to the control plants (without LED lighting), the eggplant transplants had about a 25% larger leaf area and a higher level of total phenol content as well as a higher antiradical scavenging activity under the L1 spectrum. The favourable spectrum for the tomato transplants consisted of red to blue in a ratio of 1 : 1 mixed with a green light (L3) - the leaves were characterised by a higher content of dry matter, soluble sugars, photosynthetic pigments and total phenols; also the radical scavenging activity increased in comparison to the control group. It was shown that the supplemental irradiation of transplants was economically acceptable.

Quantitative analysis of CD4+CD25+FoxP3+ regulatory T-cells in canine atopic dermatitis in KoreaOriginal Paper

DJ Lee, TH Chung, C Park

Vet Med - Czech, 2020, 65(6):250-257 | DOI: 10.17221/20/2019-VETMED

Recently, it was suggested that CD4+CD25+FoxP3+ Tregs (Regulatory T-cells) exist in canine skin, although their numbers were not significantly different between healthy and atopic dogs. In this study, we investigated whether Treg frequencies correlate with the clinical features of canine atopic dermatitis (cAD). The goal of this study was to compare and analyse the numbers of the circulating Tregs in atopic and healthy dogs. In the peripheral blood mononuclear cells (PBMC) of healthy dogs, Tregs defined as CD4+CD25+FoxP3+ Tregs in the peripheral blood ranged from 0.3% to 1.5%. By contrast, in atopic dogs, the same population ranged from 0.7% to 8.8%. The percentage of CD4+CD25+FoxP3+ Tregs in gated CD4+ T-cells was significantly higher in the peripheral blood of dogs with atopic dermatitis (n = 9) than in the healthy controls (n = 8). The difference in the Treg levels (CD4+CD25+FoxP3+) (P = 0.012) between the atopic and the healthy groups was statistically significant. The circulating T-cells (phenotype CD4+CD25+FoxP3+ and CD4+FoxP3+) were increased significantly in the atopic dogs. The proportion of CD4+CD25+FoxP3+ Tregs of the atopic dogs decreased with advancing age. These findings suggest that changes in the Tregs may mediate the pathogenesis of CAD.

Effect of biochar on nitrogen use efficiency, grain yield and amino acid content of wheat cultivated on saline soilOriginal Paper

Haijun Sun, Huanchao Zhang, Weiming Shi, Mengyi Zhou, Xiaofang Ma

Plant Soil Environ., 2019, 65(2):83-89 | DOI: 10.17221/525/2018-PSE

Biochar can potentially increase crop production in saline soils. However, the appropriate amount of biochar that should be applied to benefit from resource preservation and increase both grain yield (GY) and quality is not clear. A pot experiment was conducted to evaluate the effects of biochar applied at various rates (i.e., 0, 5, 10, 20, 30, 40 and 50 t/ha) on the nitrogen use efficiency (NUE), GY and amino acid (AA) contents of wheat plants in saline soils. The results showed that the application of 5-20 t/ha biochar increased wheat NUE by 5.2-37.9% and thus increased wheat GY by 2.9-19.4%. However, excessive biochar applications (more than 30 t/ha) had negative effects on both the NUE and GY of wheat. Biochar had little influence on leaf soil and plant analyzer development (SPAD) values, the harvest index or yield components. The AAs were significantly affected by biochar, depending on the application rate. Among the application rates, 5-30 t/ha biochar resulted in relatively higher (by 5.2-19.1%) total AA contents. Similar trends were observed for each of the 17 essential AAs. In conclusion, the positive effects of biochar occurred when it was applied at appropriate rates, but the effects were negative when biochar was overused.

Monitoring of gluten in Czech commercial beersShort Communication

Marek Pernica, Rastislav Boško, Zdeněk Svoboda, Karolína Benešová, Sylvie Běláková

Czech J. Food Sci., 2020, 38(4):255-258 | DOI: 10.17221/61/2020-CJFS

Between 2014 and 2019, a total of 361 commercially available Czech beer samples (103 brands) were analysed for gluten content using a competitive enzyme immunoassay. The gluten levels in different types of beers ranged from < 10 mg L-1 to 3 380.0 mg L-1. The percentage of samples that can claim the gluten-free status (< 20 mg L-1) were in categories gluten-free (99%), radler (84.6%), non-alcoholic beer (44.2%), lager beer group I (16.6%), lager beer group II (16.3%), special beer (25%) and wheat beer (0%). The important finding from this work was that 2 out of 196 beer samples with a gluten-free label contained more gluten than allowed under the guidelines established by the European Union and the Codex Alimentarius Standard. From a consumer point of view, it is also significant that in addition to gluten-free samples, 15.4% of radlers, 55.8% of non-alcoholic beers, 71.4 to 75.5% of all lagers and 66.6% of special beer samples could be labelled as very low gluten (21-100 mg L-1).

Response of maize (Zea mays L.) on yield, physiology and stomatal behaviour under two different elevated CO2 concentrations. Do these anatomical changes affect the physiology of the C4 crop plant under high CO2 conditions?Original Paper

Khan Ira, Vanaja Maddi, Sathish Poldasari, Faizan Mohammad, Soysal Sipan, Rajput Vishnu D., Djalovic Ivica, Trivan Goran, Alam Pravej

Plant Soil Environ., 2024, 70(10):601-616 | DOI: 10.17221/105/2024-PSE

Rising CO2 concentration in the atmosphere is a matter of global concern and poses apprehension about how plants will adapt to the changing environment. Various studies have proved that under high CO2 levels, plant physiology alters and affects plant functioning. However, under elevated CO2, the stomatal characters and their relation with physiological responses are still not yet clear. To find out these changes in the stomatal parameters at ambient and two elevated CO2 (550 ppm and 700 ppm) levels, four genotypes of maize (Zea mays L.) viz. DHM-117, Harsha, Varun and M-24 were grown in open-top chambers. In the study, it was observed that the stomatal density increased, stomatal size altered, stomatal conductance (gs) and transpiration rate (Tr) decreased under elevated CO2 (eCO2) while photosynthetic rate (Pn), water use efficiency (WUE), yield and biomass, of which especially the reproductive biomass increased. Under eCO2, stomatal and physiological changes were genotypic and CO2 concentration specific. Increased stomatal density at eCO2 was mainly due to increased abaxial stomatal density. The improved Pn and reduced Tr at 550 ppm improved the WUE in the plants, while this response was not observed at 700 ppm. These results elucidate that this C4 crop responded positively to up to 550 ppm of CO2 concentrations, and beyond this, the impact was minimal.

Phosphorus application rates affect the grain yields of different phosphorus-tolerant rice cultivars by regulating grain filling and leaf senescence characteristicsOriginal Paper

Danke Zhang, Yuyang Li, Hairun Li, Haojing Li, Xihui Zhao, Jing Cao, Guowei Xu

Plant Soil Environ., 2025, 71(5):363-380 | DOI: 10.17221/125/2025-PSE

The grain filling and physiological traits of different phosphorus-tolerant rice cultivars and phosphorus fertiliser rates have not been fully studied. A pot-growth experiment with cv. Lianjing 7 (weak phosphorus tolerance) and cv. Yongyou 2640 (strong phosphorus tolerance) was conducted using four phosphorus rates, namely, 0 (P0), 0.44 (P1), 0.88 (P2), and 1.32 g/pot (P3). Results indicated that grain yield, net photosynthetic rate, soil and plant analyser development (SPAD) value, superoxide dismutase (SOD) and catalase (CAT) activity in leaves, and adenosine diphosphate glucose pyrophosphorylase (AGPase) and sucrose synthase (SuSase) activity in grains increased and then decreased with increasing phosphorus fertiliser rate, whereas malondialdehyde (MDA) content in leaves decreased first and then increased. The above indexes of cv. Lianjing 7 and cv. Yongyou 2640 were optimal at P2 and P1 treatments, respectively. The grain yield, net photosynthetic rate, SPAD value, AGPase content, SuSase content in grains, and SOD and CAT activity in the leaves of cv. Yongyou 2640 were higher, whereas the MDA content was lower than those of cv. Lianjing 7. Correlation analysis showed that AGPase and SuSase activity in superior and inferior grains, photosynthetic rate, and SOD and CAT activity in the leaves were significant or highly significantly positively correlated with grain-filling rate and rice yield. Therefore, the adoption of appropriate phosphorus fertiliser rates can increase the activity of enzymes related to starch synthesis in different phosphorus-tolerant rice, enhance antioxidant systems in leaves at the filling stage, reduce leaf MDA content, and delay leaf senescence. These effects are beneficial to grain filling and increase grain yield.

The cultural control of some important pests in cabbage (Brassica oleracea var. capitata L.) and onion (Allium cepa L.) using companion plantsReview

Monica Novljan, Tanja Bohinc, Stanislav Trdan

Plant Protect. Sci., 2026, 62(1):1-26 | DOI: 10.17221/161/2024-PPS

Cabbage (Brassica oleracea var. capitata L.) and onion (Allium cepa L.) are two of the most important vegetables in the world, and many insect pests are a problem in their production. Currently, especially in Europe, restrictions on the use of pesticides are increasingly being encouraged, so the need to find and use alternative methods is increasingly urgent. Cultural control of insect pests using companion plants, including cover crops, intercrops, and trap crops, has been proven to help manage these insect pests. Companion plants reduce plant insects primarily by disrupting host-seeking activity, disrupting oviposition, increasing the plant's natural enemies, or luring the pests to alternative food sources. This review outlines successful examples from around the world of the use of companion crops in controlling insect pests, focusing on the main pests of cabbage and onions in Europe. Details regarding the working mechanism of each of the three companion plants are discussed further in this article. We concluded that these companion plant tree forms effectively reduce the number of generalist and specialist plant pests attacking cabbage and onion.

Magnesium deficiency or excess hinders tomato growth, potassium and calcium uptakeOriginal Paper

Huixia Li, Fang Liu, Xueke Zhang, Jingbo Gao, Ping Chen

Plant Soil Environ., 2024, 70(11):719-730 | DOI: 10.17221/473/2023-PSE

Despite accumulating evidence for the adverse effects of magnesium (Mg) deficiency or excess on grain crops, how Mg imbalance affects plant growth and potassium (K) and calcium (Ca) nutrition in vegetable crops is still unclear. The aim of this study was to ascertain the response of plant growth, nutrient uptake and Mg-K-Ca interactions in tomato (Solanum lycopersicum L.) to various levels of Mg supply. The growth parameters and nutrient contents of hydroponic plants were measured under the Mg levels of 0, 0.5, 1.0, 1.5 and 3.0 mmol/L Mg2+ from seedling to fruit ripening stage. Results showed that both Mg deficiency (0 mmol/L Mg2+) and excess (3.0 mmol/L Mg2+) negatively affected shoot and root growth, leading to a noticeable decrease in total plant biomass across different stages (41.2–52.8% and 17.7–38.3%, respectively). Mg imbalance additionally altered leaf morphology and disrupted chloroplast structure. As a consequence of increased Mg levels, the Mg contents in various plant organs increased, whereas the Ca contents decreased substantially. The trend of K contents under different Mg levels was dependent on the plant growth stage. Although Mg levels did not prominently affect plant K contents during the early growth stage, they were significantly negatively correlated in the leaves and positively correlated in the fruit during the late growth stage. When translocated from roots to aboveground organs, Mg and Ca were mainly distributed in the leaves, with K preferentially distributed in the fruit. The findings of this study underscore that the symptoms of Mg imbalance generally develop from middle leaves in vegetable crops, exemplified by tomato, which is different from the pattern in common grain crops. Vegetable production necessitates nutrient supply for the middle and upper parts of Mg-deficient plants, and attention should be paid to the nutritional imbalance of Ca and K in plants under excessive Mg supply.

Understanding the cross-cultural chicken consumers' behaviorOriginal Paper

Fallah Samuel Kassoh, Baichen Jiang, Achara Boonkong, Hui Li, Abdelrahman Ali, Tanapon Srisukwatanachai

Agric. Econ. - Czech, 2024, 70(2):73-90 | DOI: 10.17221/331/2023-AGRICECON


Concerns for human health and food safety are gaining momentum in emerging and developing nations as well as in food research due to the reputations that products have established over time. Understanding cross-cultural consumers’ purchasing behaviour for chicken meat (CM) could provide valuable insights into the global food sector since it is the most consumed meat worldwide. This study examines the effect of buying features (BF), culture factors, behavioural attitudes (BA), subjective norms (SN) and perceived behavioural control (BC) on CM actual purchase behaviour (APB) in China and Sierra Leone. Primary data were sourced from 588 Chinese and 410 Sierra Leonean participants. We adopt structural equation modelling (SEM) to verify the model and test the associations between the variables. The SEM results confirm that BF, BA, SN and BC stimulate customers’ intent and actual purchase of CM in both nations. The findings indicate that cultural factors (CF) significantly moderates the association between the independent constructs (BF, BA, SN and BC) and APB in Sierra Leonean markets. This study provides significant insights for chicken industry stakeholders that can help them increase CM sales along the supply chain via a marketing strategy focused on cultural and psychological factors.

Histological structure of the musculus longissimus lumborum et thoracis in pigs with the same ryanodine receptor genotype (CC) in relation to carcass indicators

Z. Eliáš, S. Hluchý, J. Mlynek

Czech J. Anim. Sci., 2007, 52(1):12-20 | DOI: 10.17221/2328-CJAS

The aim of this study was to investigate the histological structure of the longissimus muscle in pigs in relation to carcass value indicators. A total number of 16 pigs of about 101.28 kg average live weight were used. The animals were raised at a Fattening and Carcass Value Experimental Station (FCVES) of Slovak University of Agriculture in Nitra in equal conditions, receiving a standard diet fortified with vitamin-mineral mixture, and they were slaughtered in an experimental abattoir of FCVES. Samples from the musculus longissimus lumborum et thoracisi (MLLT) for histological evaluation were taken within 30 minutes post mortem, immediately frozen in liquid nitrogen and stored at a temperature of -20°C. In the experimental abattoir of FCVES feeding indicators, and indicators of meat quality and carcass value were examined. Samples were processed histochemically and single types of muscle fibres were differentiated according to reactions on SDH on the basis of Vacek's (1974) method. Nikon microscopic system, Pixelink digital camera and LUCIA software for image analyses for the morphometric analysis of MLLT structure were used. The highest abundance of white and the lowest abundance of intermediate muscle fibres was obtained in the analyzed musculus longissimus lumborum et thoracisi of pigs. Red muscle fibre abundance was only slightly higher than intermediate muscle fibre abundance. Concerning the average muscle fibre diameter, the highest values in white and the lowest values in red muscle fibres were found. Positive correlations of white muscle fibre abundance with loin meat weight, thigh meat weight, carcass length, ribcase length, hot right half weight, valuable meatiness parts in kilograms, thigh weight, thigh percent in the half-carcass and MLLT area weight were obtained. In the case of all fat content and weight indicators negative correlations were obtained except loin fat weight. Red muscle fibre content showed positive correlations with shoulder fat weight, neck meat weight, neck fat weight, head weight, thigh fat weight, average backfat thickness and MLLT area. Correlation coefficients between white muscle fibre diameter and shoulder meat weight, thigh meat weight, carcass length, ribcase length showed weak positive correlations. An increase in the white muscle fibre diameter corresponds with an increase in loin meat weight, valuable meatiness parts in kg, valuable meatiness parts in percents, thigh weight, thigh percent in the half-carcass weight and MLLT area. Concerning the red muscle fibre diameter weak positive correlations were obtained in relation to neck meat weight, thigh meat weight, thigh weight and moderate positive correlations to shoulder meat weight, loin meat weight, valuable meatiness parts in kilograms and percents, thigh percent in half-carcass and MLLT area.

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