Fulltext search in archive
Results 1111 to 1140 of 5824:
The impact of environmental attitudes of farmers on efficiency in the agricultural sector in the European UnionOriginal PaperLukasz KryszakAgric. Econ. - Czech, 2024, 70(8):383-394 | DOI: 10.17221/46/2024-AGRICECON
|
Effect of rosemary and clove essential oils on lipid oxidation, microbial, sensorial properties and storage stability of kavurma, a cooked meat productOriginal PaperSezen Harmankaya, Ahmet Harmankaya, Koray ݺbarali, Özlem İstanbullu PaksoyCzech J. Food Sci., 2024, 42(4):251-262 | DOI: 10.17221/56/2024-CJFS
|
A survey on rabbit meat perception and consumption in seven countriesOriginal PaperKatalin Szendrõ, Antonella Dalle Zotte, Nikoletta Fülöp, Mónika Zita NagyCzech J. Anim. Sci., 2024, 69(10):419-429 | DOI: 10.17221/123/2024-CJAS
|
Assessment of soil salinity and environmental factors in the Kesem irrigation scheme, Afar Region, EthiopiaOriginal PaperMengistu Jiru, Boja Mekonnen, Henk Ritzema, Fentaw AbegazSoil & Water Res., 2024, 19(4):191-199 | DOI: 10.17221/37/2024-SWR Soil salinity is a growing problem for agricultural production in irrigated areas of arid and semi-arid regions. The extent of salinity levels has not been fully studied in the Kesem irrigation scheme in Ethiopia's Afar region. The objective of the study was to identify the main issues related to soil salinity and their variations, and to assess the influence of environmental variables on soil salinity using multivariate analysis (MVA). The dominant cations in the soil were found to be soluble Na+, Ca2+ and K+ while SO42-and Cl- were the dominant anions. These ions are responsible for the salinity in the scheme. Groundwater table surveys showed that cultivated fields experienced greater fluctuations in groundwater levels compared to abandoned land due to frequent irrigation. The first two principal components (PCA) explained approximately 60% and 63% of the total variation in salinity for the top and bottom layers, respectively. The difference between the top and bottom layers suggests a management influence. According to redundancy analysis (RDA), the groundwater depth and length of irrigation years were identified as the major environmental factors contributing to 99% and 52% of the variability in salinity, respectively. These findings highlight the importance of considering the rising groundwater levels in future land management decisions. |
The influence of bioproducts on mycorrhizal occurrence in the vegetable rootsOriginal PaperEdyta Derkowska, Lidia Sas-Paszt, Beata Sumorok, Krzysztof Górnik, S³awomir G³uszek, Waldemar TrederHort. Sci. (Prague), 2024, 51(4):327-340 | DOI: 10.17221/69/2023-HORTSCI The aim of the study was to assess the impact of the use of biofertilizers on the degree of colonization of cucumber and tomato plant roots by arbuscular mycorrhizal fungi and the number of AMF spores in the rhizosphere soil. Two experiments were carried out in containers on cucumber and tomato plants under field conditions. The plants were fertilized with standard NPK fertilizer, mineral fertilizers: POLIFOSKA 6, Super FOS DAR 40 and urea in the full recommended dose and reduced by 40%, microbiologically enriched, and only with strains of beneficial microorganisms (Bacillus spp., Bacillus amyloliquefaciens, Paenibacillus Polymyxa, Aspergillus niger, Purpureocillium lilacinum). The experimental results showed a beneficial effect of the POLIFOSKA 6 mineral fertilizer enriched with beneficial bacteria of the Bacillus genus on increasing the colonization of the roots of tomato and cucumber plants by arbuscular mycorrhizal fungi. Compared to the control, fertilization with microbiologically enriched urea at doses of 100% and 60% reduced the frequency of mycorrhizas in the roots of tomato and cucumber plants. The use of POLIFOSKA 6 100% and Super FOS DAR 40 at a dose of 60% resulted in an increase in the number of spores in the rhizosphere soil. The experimental results will allow the development of new biofertilizers as alternative methods of fertilizing plants and improving soil quality compared to standard mineral fertilization. |
Evaluation of Streptococcus species isolated from subclinical sheep mastitis by molecular methods and determination of virulence factors and antimicrobial resistance genesOriginal PaperV Ozavci, HT Yuksel Dolgun, S Kirkan, Y Seferoglu, Z Semen, U ParinVet Med - Czech, 2023, 68(9):359-367 | DOI: 10.17221/42/2023-VETMED Streptococcus (S.) species are important pathogens that cause mastitis in sheep. The study aimed to examine Streptococcus species in sheep milk with subclinical mastitis, assessing their prevalence, antimicrobial resistance, and virulence genes. A total of 200 milk samples were collected from sheep farms in İzmir’s five districts. Out of 32 (28.6%) Streptococcus isolates identified by phenotypic methods, 25 were genotypically identified as S. uberis, 5 as S. agalactiae, and 2 as S. dysgalactiae. Disk diffusion was used to determine the antimicrobial resistance of the isolates. PCR was employed to identify antimicrobial resistance and virulence genes in the isolates. The highest resistance was found for cloxacillin (100%), and the highest sensitivity was found for florfenicol (84%). The most common resistance gene combination was tetM+tetS (3/32) for S. uberis in 9.4%. A total of five virulence genes were detected. GapC+sua (56.2%) constituted the most common gene pattern. The highest virulence gene gapC was detected in 78.1% (25/32) of the isolates. The cylE gene was not detected (0%) in the isolates. Streptococcus species may play a role in mastitis in sheep, emphasising the need for meticulous hygienic milking practices. |
The effect of cold atmospheric plasma (NO) alone and in combination with NPH insulin on the full-thickness excisional wound healing in a diabetic rat modelOriginal PaperA Curukoglu, GCA Gungor, G Akan, A Kukner, G Ogutcu, M Kalaycı, M Temizel, FE OzgencilVet Med - Czech, 2023, 68(4):152-163 | DOI: 10.17221/109/2022-VETMED This study was planned to investigate an alternative treatment modality in diabetic wound healing. In this experimental study, the efficacy of both cold atmospheric plasma/nitric oxide (NO) and NPH insulin ointment, recently known to have beneficial effects on wound healing, was investigated in diabetic wound healing. Twenty-four (24) diabetic rats were divided into four groups DC, DI, DNO and DINO (diabetic control, diabetic insulin, diabetic nitric oxide, diabetic insulin + nitric oxide groups). No treatment was applied to the DC group, NPH insulin was applied to the DI group, CAP/NO was applied to the DNO group, and CAP/NO + NPH insulin was applied to the DINO group once daily for 14 days. The wound area reduction and the wound contraction rate were calculated on the basis of the tissue sections taken, and histopathological and genetic analyses were carried out. Compared to the control group, exogenous NO gas was found to be a potent antibacterial agent in the diabetic wound healing, causing a reduction in the wound area (P = 0.034), an increased contraction rate (P = 0.021), epithelialisation (P = 0.02), collagen organisation (P = 0.006) and a reduction in the number of inflammatory cells (P = 0.002). A significant increase in the expression of IL-8 mRNA was observed (P = 0.026). It was concluded that NPH insulin alone contributes to wound healing, but it is not necessary to use it together with exogenous NO gas. |
Effects of selenomethionine on the growth and physiological characteristics of Scrophularia ningpoensis seedlingsOriginal PaperXiaoqing Zhang, Yi Luo, Changjuan ShanPlant Soil Environ., 2024, 70(3):176-187 | DOI: 10.17221/381/2023-PSE In order to provide a theoretical basis for the application of organic selenium (Se) in the production and cultivation of Scrophularia ningpoensis Hemsl. We investigated the effects of selenomethionine (SeMet) on the growth and physiological characteristics of S. ningpoensis seedlings. The results showed that SeMet significantly improved the antioxidant capacity by enhancing the activities of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) in the leaves of S. ningpoensis, which significantly reduced the content of malondialdehyde (MDA) and hydrogen peroxide (H2O2), as compared to the control. SeMet also significantly improved the water metabolism by increasing the transpiration rate, stomatal conductance, water use efficiency (WUE), relative water content, and water saturation deficit of S. ningpoensis leaves. Moreover, SeMet significantly enhanced photosynthetic performance by decreasing non-photochemical quenching (NPQ) and increasing the soil and plant analyser development (SPAD) value, net photosynthetic rate, PSII actual photochemical efficiency Y(II), photochemical quenching (qP), PSII photochemical effective quantum yield (Fv'/Fm') and apparent electron transport rate (ETR). Meanwhile, SeMet significantly improved the plant’s height, basal diameter, root/shoot ratio and dry weight of shoots and roots in S. ningpoensis. Various SeMet 30 and 60 mg/L SeMet concentrations demonstrated better effects on the growth and physiological characteristics of S. ningpoensis. The above results indicate that appropriate concentrations of SeMet can enhance the growth of S. ningpoensis and can be improved by increasing its antioxidant capacity, water metabolism, and photosynthetic performance. This provides a theoretical foundation for using organic selenium in growing and producing S. ningpoensis. |
Effects of severe drought stress on the physiology and biochemistry characteristics of Welsh onion (Allium fistulosum L. var. giganteum Makino) seedlingsOriginal PaperXiaorui Liu, Tingting Zhang, Yang Song, Shijun Sun, Baosheng Wang, Shimao CuiHort. Sci. (Prague), 2023, 50(4):297-307 | DOI: 10.17221/58/2022-HORTSCI The physiological regulation of Welsh onion seedlings was explored under short- and long-term drought stress. The Welsh onion cultivar ‘Neicong 3’ was grown in pots under drought stress (22.5–25% soil water content) or controlled watering conditions (65–67.5% soil water content). Different lengths of drought stress (7, 14, 21, and 28 days) were studied to determine the effects of the drought on the levels of the osmoregulatory substances, including proline (Pro), free amino acids (FAAs), soluble sugar (SS), and soluble protein (SP); the membrane-damage indicator malondialdehyde (MDA); the endogenous hormones indoleacetic acid (IAA), gibberellic acid (GA), abscisic acid (ABA), and jasmonic acid (JA); and the activities of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD). The soil water content was restored to the control level after the drought stress to analyse the physiological responses of the Welsh onion with regards to rehydration. The results showed that the Welsh onion responded to drought stress primarily by increasing the levels of the osmoregulatory substances and the activities of the protective enzymes. The drought stress resulted in the accumulation of Pro, FAA, SS, MDA, and ABA in the pseudostems, while the IAA and GA levels decreased. Short-term drought stress led to a decrease in the SOD activity and an increase in the CAT activity, whereas the long-term drought stress led to a decrease in the POD activity. The effects of the drought stress on the SP and JA contents were negligible. The rehydration demonstrated that the short-term drought stress (7 or 14 days) did not exceed the tolerance of the Welsh onion; the substances regulating the drought tolerance were restored to normal levels after the stress conditions were relieved. In contrast, after the severe drought stress (28 days), the substances regulating the drought tolerance in the seedlings could not return to normal levels. This study provides a theoretical basis for the cultivation of the Welsh onion under early drought conditions and for breeding of drought-resistant varieties. |
Analysing the impact of climate change on evapotranspiration in a climate-sensitive region: Example of Central Anatolia (Türkiye)Original PaperMuhammet Azlak, Levent ªaylanSoil & Water Res., 2024, 19(1):64-76 | DOI: 10.17221/107/2023-SWR Evapotranspiration (ET) is one of the main components of the hydrological cycle and plays a crucial role for water resources. It is sensitive to climate change, and therefore, estimating ET under changing climatic conditions is essential in comprehending hydrological processes, particularly in agricultural water management. In this study, the impact of climate change on ET in the Central Anatolia region of Türkiye was assessed. For this purpose, RCP4.5 and RCP8.5 climate change scenarios based on two Earth System Models, HadGEM2-ES and MPI-ESM-MR, were employed for three future time periods: 2025–2049, 2050–2074, and 2075–2098. As a baseline period for comparison, the time interval spanning 1980–2000 was considered. ET values were computed by using the Penman-Monteith equation, recommended by the Food and Agriculture Organization, along with five widely utilized methods. The study revealed a consistent increase in ET depending on the employed methods for the future period in response to climate change. The average of the ET amounts for the region was determined as 1089 mm for the reference period 1980–2000. As the average of the six methods utilized, amounts estimated by HadGEM RCP4.5, HadGEM RCP8.5, MPI RCP4.5, and MPI RCP8.5 models for the future period were obtained as 1 199, 1 285, 1 166, and 1 248 mm, respectively. Considering the results, it is found that the ET amount in the Central Anatolia region of Türkiye will increase by up to 11% by the end of this century under the optimistic RCP 4.5 scenario and by up to 19% under the extreme RCP 8.5 scenario. These findings regarding increased evapotranspiration play a significant role in water resource management and agricultural production planning in the region, holding crucial implications for sustainable agriculture. |
Effects of various nitrogen fertilisers applied in autumn on growth parameters, yield and quality of winter oilseed rapeOriginal PaperDavid Beèka, Lucie Beèková, Jaroslav Tomá¹ek, Vlastimil Mik¹ík, Mária ViciánováPlant Soil Environ., 2024, 70(6):317-325 | DOI: 10.17221/68/2024-PSE The aim of this trial was to verify the influence of various autumn-applied nitrogen fertilisers on the growth, yield and quality of winter oilseed rape. In the three years, small-plot field trials were carried out at the Research Station Èervený Újezd (50.0697044N, 14.1659086E). The hybrid cultivar DK Exstorm was chosen, with a sowing rate of 50 seeds/m2. Five fertilisation regimes were tested: (1) nitrogen-free control; (2) CAN (calcium ammonium nitrate); (3) ANU (ammonium nitrate urea); (4) U (urea), and (5) US (urea with N-(n-butyl)thiophosphoric acid triamide (NBPT) inhibitor). A uniform dose of 40 kg N/ha was applied at the end of October. Fertilisers U (leaf length, root collar diameter, leaf and root dry weight) and US (number of leaves and root length) had the best growth outcomes. The highest seed yields were obtained with US (5.83 t/ha) and ANU (5.82 t/ha) applications, which outperformed the unfertilised control by 0.65 and 0.64 t/ha, respectively. CAN fertiliser appears to be unsuitable for autumn fertilisation in terms of yield. There were no statistically significant differences in oil content (%) or thousand seed weight (g) between the treatments in any of the experimental years. |
Evaluating the indicators of a heart rate variability analysis in dogs using Poincaré plotsOriginal PaperT Kimura, S Shimamura, H Sakaya, T Hayashi, A Umemoto, K Sakai, M Yamasaki, T Hasegawa, T ShimadaVet Med - Czech, 2024, 69(2):42-51 | DOI: 10.17221/49/2023-VETMED Heart rate variability analyses using Poincaré plots can be useful for evaluating the autonomic nervous system function. However, the interpretation of the quantitative indicators of Poincaré plots remains controversial. Thus, few studies have verified the effectiveness of the quantitative indicators in veterinary medicine. This study aimed to verify the reliability of Poincaré plot indicators using pharmacological models in dogs. Four healthy beagles were used in this study. Each dog was treated with propranolol, atropine, and propranolol–atropine to block the sympathetic, parasympathetic, and sympathetic–parasympathetic functions, respectively. The quantitative indicators of the Poincaré plots were calculated based on data from 300 electrocardiogram beats collected before and after the administration of each drug and statistically analysed. The quantitative indicators of the Poincaré plots, such as the standard deviation perpendicular to the major axis (SD1), standard deviation along the major axis (SD2), and SD1 × SD2, significantly decreased after the drug administration in both the parasympathetic and sympathetic–parasympathetic blockade models. However, no significant differences were observed in SD1/SD2 between the groups. The Poincaré plots reflected the changes in the autonomic nervous system of dogs. In dogs, SD1, SD2, and SD1 × SD2 can detect a state in which parasympathetic nerve activity is suppressed. |
Impact of new generation plant growth regulators on fruit crops – A ReviewReviewAkshay Kumar, Rajni Rajan, Kuldeep Pandey, Rodge Rahul Ramprasad, Gulbadan Kaur, Thammali Vamshi, Tanya SinghHort. Sci. (Prague), 2024, 51(1):1-22 | DOI: 10.17221/166/2022-HORTSCI Plant growth regulators (PGRs) are artificially synthesized substances that control growth, development, and other various physiological processes in plants. Synthesized auxins, ethylene, abscisic acid, cytokinin, and gibberellins are only a few of the key PGRs that have been studied and used for quite a long period of time. brassinosteroids, salicylic acid, jasmonic acid, CPPU (N-(2-chloro-4-pyridyl)-N’-phenylurea), putrescine, hexanal, triacontanol, melatonin, and other chemicals have been added to the list of PGRs. These PGRs can be considered the new generation of plant growth regulators. These relatively novel hormones are critical for a plant’s growth and development. They aid in the increase of not only the quantity (fruit set, length, weight, yield, volume, pulp percentage, and so on) but also the quality of fruit crops (fruit colour, firmness, total soluble solids, total sugar, ascorbic acid content, etc). They also help to prolong the shelf life of certain fruits and minimize the losses after harvesting. As a result, these new-generation PGRs can be used to boost an orchard’s productivity and income while minimizing pre and post-harvest losses to the greatest extent possible. Hence, this extensive review discusses the impact of these new-generation PGRs on fruit crops. |
Biochar addition enhances annual carbon stocks and ecosystem carbon sink intensity in saline soils of the Hetao Irrigation District, Inner MongoliaOriginal PaperRuxin Zhang, Zhongyi Qu, Wei Yang, Liping Wang, Dongliang Zhang, Lu Liu, Junjie Li, Zhimin ZhangPlant Soil Environ., 2024, 70(5):263-275 | DOI: 10.17221/121/2023-PSE Biochar has demonstrated potential for stabilising high yields and sequestering carbon in dryland farmland, but it is unclear whether biochar affects the carbon sequestration capacity and carbon balance of annual farmland ecosystems. For this purpose, we conducted a plot control trial in salinised farmland in 2019–2021, where we set three treatments, control, and two biochar rates, 0 (CK), 15 (B15), and 30 t/ha (B30). The results showed that biochar application decreased soil organic carbon stocks in the early part of the experiment (first freeze and freeze period); these increased in the later part, and overall, the biochar treatments increased soil organic carbon storage by 3–6% compared with the control. Compared with the control (CK), biochar inhibited the total soil respiration rate and microbial respiration rate significantly (P < 0.05) during the crop growing period compared with the freeze-thaw period. After two years of freeze-thaw cycling, biochar application increased sunflower plant carbon sequestration and net primary productivity and suppressed total soil microbial respiration, thereby increasing net ecosystem productivity. Therefore, the application of biochar is conducive to carbon sequestration in farmland ecosystems and presents a carbon sink effect, thus being a good choice for improving the soil carbon pool and reducing emissions in the northern dry zone. |
Partitioned nitrogen fertilisation in peanut rhizosphere and geocarposphere drives specific variation soil microbiomesOriginal PaperHaiyan Liang, Qi Wu, Liyu Yang, Dianxu Chen, Pu ShenPlant Soil Environ., 2024, 70(6):342-355 | DOI: 10.17221/498/2023-PSE Peanut is a plant characterised by belowground fruiting that absorbs nutrients not only through its roots but also through its pods. However, little is currently known regarding the species of bacteria that contribute to nutrient absorption and utilisation in this plant’s pod and root zones. This study examined the effects of root and pod area nitrogen (N) fertiliser application on peanut rhizosphere and geocarposphere microbial communities and functions. Using two peanut cultivars [nodulated Huayu 22 (H) and non-nodulated NN-1 (B)], we applied the following four treatments: no N fertiliser (HT1, BH1); N applied to geocarposphere soil (HT2, BT2); N applied to rhizosphere soil (HT3, BT3), and N applied to both rhizosphere and geocarposphere soil (HT4, BT4). The results revealed that compared with HT1 and BT1, the HT3, HT4, BT3, and BT4 treatments promoted increases in total plant accumulated N of 11.2, 30.1, 38.5, and 9.9%, respectively. Moreover, N input contributed to an increase in the abundance of bacteria colonising the surrounding pods, which differed significantly from bacteria colonising the rhizosphere. Among the top four bacterial phyla detected, we recorded a significant increase in the relative abundances of Proteobacteria and Gemmatimonadetes in response to treatments HT2 and HT4, whereas the highest relative abundances of Acidobacteria and Actinobacteria were detected in HT3 plants. Regarding cultivar B, we detected increases in the relative abundances of Bacteroidetes and Gemmatimonadetes in response to the BT2 and BT4 treatments, and in the relative abundance of Actinobacteria in BT3 treated soil. The findings of FAPROTAX functional analysis revealed clear differences among the T2, T4, and T3 treatments of two peanut cultivars concerning the functional groups with the highest relative abundances. These findings will make a considerable contribution to enhancing our understanding of the effects of N fertilisation on soil microbial structure and function in the rhizosphere and geocarposphere of peanuts and can provide a basis for identifying beneficial bacteria for promoting N utilisation and yield enhancement. |
The control of soil-borne fungal pathogens in grapevine nurseries in Türkiye and their impact on sapling qualityOriginal PaperNurdan Gungor SavasPlant Protect. Sci., 2024, 60(3):241-257 | DOI: 10.17221/94/2023-PPS In the production of grafted vines, losses are caused by fungal pathogens during callus forming or after planting in the soil. To control or reduce natural soil-born fungal infections in nurseries, certain applications were conducted in the sapling cultivation stage to analyse the efficacy of cyprodinil + fludioxonil, fluopyram + tebuconazole active substances, and Trichoderma harzianum biological preparation: 1103 Paulsen rootstock and Vitis viniferea L. cv. In the study, Sultana cultivars were stored in fungicide suspensions for 60 min before and after grafting. After grafting, the saplings were divided into (i) cutting + sawdust (ii) cutting + sawdust + soil application groups and transferred to the callus room. After nine months in the nursery, the plants were uprooted, classified as diseased or healthy, and analysed for morphological and molecular diagnosis of fungal species, isolation incidence, and sapling quality and yield. Boeremia exigua var. exigua was isolated for the first time from cuttings during grapevine sapling production and was first registered in NCBI Genbank. After callus development, Fusarium solani was most frequently isolated pathogen in the roots (21.5%); cyprodinil + fludioxonil reduced the Ilyonectria sp. isolation rate in both shoots and roots. Botryosphaeria dothidae and I. liriodendri pathogens were not detected in disease and healthy cyprodinil + fludioxonil treated saplings. The highest sapling yield was observed in fludioxonil + cyprodinil, cutting + sawdust + soil (78.75%) and cutting + sawdust (70.63%) applications. |
Cryopreservation of early-stage male Black Sea trout (Salmo trutta labrax) germ cells and comparison of the whole tissue and enzymatically isolated cellsOriginal PaperEge Güngör, Aygül Ekici, Merve Erçin, Selda Oktayoğlu, Taiju Saito, İlker KeskinCzech J. Anim. Sci., 2024, 69(8):331-343 | DOI: 10.17221/71/2024-CJAS
|
Molecular identification of yellow rust resistance genes in some wheat and triticale cultivars and their resistance to Puccinia striiformis f.sp. triticiOriginal PaperEmad Mahmood Al-Maaroof*, Sarkawt Hama Salih AliCzech J. Genet. Plant Breed., 2024, 60(4):223-236 | DOI: 10.17221/39/2024-CJGPB Yellow rust (YR), caused by Puccinia striiformis f.sp. tritici (Pst), is a global threat to wheat production. In this study the response of 46 wheat and triticale cultivars to Pst at the adult plant stage (APS) was evaluated during two successive growing seasons at Sulaimania, Iraq. Also, we used a molecular analysis to find the yellow rust resistance (Yr) genes present in the individual cultivars. The results revealed large differences in the response to Pst between the cultivars. Most of the cultivars were susceptible to YR; the mean coefficients of infection (CI) varied from 0.23 in cv. Sarah to 83.33 in Hsad. High resistance levels were found in Al-Wand, Kalar 1, Rezan, and Sarahat APS, while Al-Rashid, Charmo, Faris 1, Maaroof, Rabiea, and Iratom displayed moderate resistance. The level of Yellow rust infection was higher in 2023 than in 2022 in most tested cultivars. Molecular analysis revealed the highest number of Yr genes (Yr2, Yr5, Yr7, Yr9, Yrvav, Yr15, Yr24, Yr26, and Yr32) in the cv. Al-Wand, followed by Sulaimani 2 with eight Yr genes (Yr2, Yr5, Yr7, Yr9, Yr15, Yr24, Yr26, and Yr32). Only one Yr gene was found in Iratom and Tamuz 3. Yr2 was the most frequently identified gene, present in the majority of tested cultivars (87%), followed by Yr7 (76%) and Yr9 (74%), respectively. |
How does urbanisation affect agricultural economic resilience? Evidence from ChinaOriginal PaperRuihan Wang, Zheng Lu, Chunyu TangAgric. Econ. - Czech, 2024, 70(10):513-526 | DOI: 10.17221/207/2024-AGRICECON As an important path to breaking the urban-rural dual system and promoting agricultural modernisation in China, the process of urbanisation might have a strong influence on promoting agricultural economic resilience (AER). Using panel data from provincial-level administrative regions of China’s mainland, we constructed a novel indicator system to measure AER, and employ the system generalised method of moments model to examine the impact of urbanisation on AER and the moderating roles of land transfer and heterogeneous human capital. Our study yielded three notable findings. First, the urbanisation process can significantly enhance AER. This finding remained robust after conducting multiple robustness tests and addressing endogeneity using the instrumental variable method. Second, the influencing mechanism analysis results indicated that land transfer and human capital had significant moderating roles, and the level of land transfer and educational improvement can enhance the positive impact of urbanisation on AER, while the migratory human capital weakened this positive effect. Third, the heterogeneity analysis revealed regional differences in the impact of urbanisation on AER, demonstrating that the promotional effect of urbanisation was much greater in the major grain-producing areas. Our study offers a new perspective and evidence for researchers and policymakers investigating how to enhance AER. |
Biochar distribution mode in soil affects the vegetative peanut growth, nitrogen uptake and nitrogen-fixing bacteria activityOriginal PaperXiangzhu Wang, Man Wu, Chengbin Sun, Miao Liu, Liyu Yang, Haiyan Liang, Qi Wu, Pu ShenPlant Soil Environ., 2024, 70(12):783-798 | DOI: 10.17221/228/2024-PSE Biochar plays an important role in agricultural production as it can improve soil fertility, promote nutrient adsorption and enhance plant growth. However, the distribution of biochar in the soil significantly impacts its application effect. In order to investigate the impact of non-uniform biochar distribution on soil nutrient uptake, root shape, peanut development, and the makeup of soil microbial communities, we carried out greenhouse peanut pot studies. This experiment followed a completely randomised design with four treatments, each with three replications. The four treatments were as follows: no biochar application (B0); concentrated biochar application near seeds (B1); relatively concentrated surface application of biochar (B2), and uniformly dispersed application of biochar (B3). The findings demonstrated that, compared to the no-biochar scenario, the aboveground and root nitrogen uptake was significantly (P < 0.05) improved by the B2 treatment, increasing by 42.79% and 51.39%, respectively, compared to the control group. Additionally, it reduced the concentrations of NO3–-N and NH4+-N in the soil. The B2 treatment also significantly (P < 0.05) increased the net photosynthetic rate and aboveground dry matter weight, increasing by 196.85% and 53.96%, respectively, compared to the B0 treatment. The B1 and B3 treatments also demonstrated a higher promoting effect. The growth of the root system and the quantity of root nodules were promoted by the addition of biochar. The number of root nodules in the B2 treatment was 72.22% higher than that in the control group. In terms of microbial and bacterial communities, the addition of biochar increased the number of nitrogen-fixing bacteria to a certain extent, while the relative abundance of soil bacterial communities showed no significant differences. In general, the non-uniform distribution of biochar in the soil significantly affected peanuts’ vegetative growth and developmental effects. The relatively concentrated surface application of biochar treatments contributes to improving plant nutrient uptake and root system development. This provides a more effective application method for agricultural personnel to apply biochar fertiliser in the future. |
Genetic diversity among coloured cotton genotypes in relation to their fibre colour and ploidy level based on SSR markersOriginal PaperRevanasiddayya, Jayaprakash Mohan Nidagundi, Bashasab Fakrudin, Prakash Kuchanur, Lingappa Neelagiri Yogeesh, Shivanand Hanchinal, Talagunda Chandrashekar Suma, Gururaj Sunkad, Bharamappanavara Muralidhara, DodCzech J. Genet. Plant Breed., 2024, 60(1):12-24 | DOI: 10.17221/12/2023-CJGPB Genetic diversity is referred to as any variation at the phenotypic, DNA or genomic level of an individual, population or species. The appraisal of diversity is important to understand its pattern and evolutionary relationships between germplasms or genotypes, which will aid in sampling the genetic resources in a more systematic manner for conservation and crop improvement. The present study employed 50 simple sequence repeat (SSR) markers linked to the yield and fibre quality/colour traits for estimating the genetic diversity in 33 cotton genotypes of diploid and tetraploid species differing in fibre colour. The diversity analysis was performed in GenAlEx (Ver. 6.41) and Powermarker (Ver. 3.25) while DARwin (Ver. 6.0.21) software was used to establish the phylogenetic relationships following neighbour-joining (NJ) and unweighted pair group method with arithmetic (UPGMA) mean method. Markers generated 186 polymorphic loci as genotypic data with an average of 3.72 alleles and an average polymorphic information content (PIC) value of 0.59 per SSR locus. The NJ and UPGMA grouped 33 genotypes into three major clusters I, II and III consisting of 21 tetraploid Gossypium hirsutum, 10 G. arboreum coloured and 2 white cotton genotypes, respectively. In the PCA, the first two components (PC1 and PC2) explained 74.69% of the variation and the biplot plotted the 33 genotypes in three groups. The study established the diverse nature of 33 cotton genotypes based on their fibre colour and ploidy level. With confirmation of the prevalent genetic diversity, we suggest that hybridisation can be planned among diverse genotypes to unleash greater variation in the fibre colour or to derive superior cross combinations. |
Genotypic and environmental variability and stability of seed yield, oil content and fatty acids in high-oleic and high-linoleic safflower (Carthamus tinctorius L.) lines and cultivarsOriginal PaperSabri Erbaº, Hasan Baydar, Halil Hatipoğlu, Hasan Koç, Metin Babaoğlu, Arzu KöseCzech J. Genet. Plant Breed., 2024, 60(1):1-11 | DOI: 10.17221/113/2022-CJGPB The present study was to determine the genotypic and environmental variability and stability in seed yield, oil content, oil yield, oleic and linoleic acid of 10 safflower lines derived from a cross of Dinçer 5-18-1 × Montola 2000 together with six cultivars under six environments at five locations. The effects of genotypes, environments and genotype × environment interactions were highly significant (P < 0.01) for seed yield and oil content. Averaged across all environments, the seed yield was lowest in the cultivar Olas (2 352 kg/ha), and highest in the line Bay-Er 5 (2 869 kg/ha). According to mean (xi) and regression coefficient (bi) values, the Bay-Er 16 was better adapted to unfavourable environmental conditions, whereas the Bay-Er 1, Bay-Er 5 and Bay-Er 14 were better adapted to favourable environmental conditions. The highest oil content across environments, over 35%, was recorded in the line Bay-Er 15 and the cultivars Olas and Linas. The best adaptability to the environments was observed in the cultivar Olas. The oleic acid content of genotypes increased and the linoleic acid contents decreased from the north to the south latitudes. The oil content of genotypes grown in Southeastern Anatolia was higher than in the other regions. Within the regions, seed yield and oil content was higher after autumn sowing than after spring sowing. |
Does the payment method matter in online shopping behaviour? Study on the Romanian market of vegetables during the pandemic crisisOriginal PaperIoan-Sebastian Brumã, Cristina Cautisanu, Lucian Tanasã, Simona-Roxana Ulman, Meda Gâlea, Alexandra Raluca JeleaAgric. Econ. - Czech, 2024, 70(1):34-47 | DOI: 10.17221/314/2023-AGRICECON
|
A plate diffusion method for detecting fluoroquinolone residues in raw cow's milkOriginal PaperPavlína NAVRÁTILOVÁ, Jana VYHNÁLKOVÁ, Lenka VORLOVÁ, Jaroslava JEØÁBKOVÁCzech J. Food Sci., 2014, 32(3):260-264 | DOI: 10.17221/209/2013-CJFS The plate diffusion method is a reference method in the Czech Republic for determination of residues of antimicrobial agents in raw materials and foodstuffs of animal origin. A new method using the E. coli strain ATCC 11303 for the detection of fluoroquinolones was introduced in 2008. The aim of this study was to determine the detection capability (CCβ) of this modified method using this E. coli strain for selected fluoroquinolones registered in the Czech Republic for treating diseases in cattle - danofloxacin, marbofloxacin, ciprofloxacin, enrofloxacin, and flumequine. When comparing the maximum residue limits for individual fluoroquinolones and the CCβ values determined, we can state that the method displays very good sensitivity to ciprofloxacin and enrofloxacin (20 and 40 µg/l), marbofloxacin (70 µg/l), and danofloxacin (30 µg/l). The CCβ of the method for flumequine was not found in concentrations ≤ MRL. The method did not display sensitivity to flumequine even in a concentration equal to twelve times the MRL. |
Corporate social responsibility and the relationship to stakeholders in large agricultural holdings in the Czech RepublicOriginal PaperMarie ©impachová Pechrová, Ondøej ©impachAgric. Econ. - Czech, 2024, 70(4):155-164 | DOI: 10.17221/369/2023-AGRICECON
|
Temporal changes of soil characteristics on Lítov spoil heap, Czech RepublicOriginal PaperEnkhtuya Enkhtaivan, Oldøich Vacek, Petra Vokurková, Marko Spasiæ, Radim Va¹át, Ondøej DrábekSoil & Water Res., 2024, 19(3):133-143 | DOI: 10.17221/17/2024-SWR This study aimed to examine the changes in selected soil properties at Lítov spoil heap (Sokolov, Czech Republic) and compare the current situation with the situation described twenty years ago. A total of 110 soil samples were taken at Lítov at the same sites as in 1998. The analyses of basic soil characteristics involved: exchangeable soil pH (pHKCl), organic carbon content (Cox), quality of humic substances (A400/A600), exchangeable acidity (Ea), and two types of aluminium contents in the soil. Changes in all soil characteristics between 1998 and 2018 were statistically evaluated, compared, and visualized using Geographical Information Systems (GIS). We have observed an increase of pHKCl, Cox and a slight improvement in humus quality compared to the results from 1998. The temporal changes of soil characteristics were evident in the whole area, and the influence of reclamation methods was also pronounced. Soil development close to the regional common natural conditions was found in the area where agricultural reclamation measures (i.e., covering with topsoil) were carried out. Furthermore, afforestation – mainly by deciduous trees – supported the improvement of soil characteristics favourable for plant growth. High pyrite content and marshland were identified as the main causes that led to vegetation cover mortality. |
Effect of the combination of nitrapyrin and gamma-aminobutyric acid on soil nitrogen transformation characteristics and rice yieldOriginal PaperFurong Xiao, Chen Feng, Dongpo Li, Lili Zhang, Yonghua Li, Yandi Du, Yan Xue, Ping Gong, Yuchao Song, Ke Zhang, Yiji ZhangPlant Soil Environ., 2024, 70(8):509-522 | DOI: 10.17221/95/2024-PSE When 2-chloro-6-(trichloromethyl) pyridine (nitrapyrin) is applied alone, it typically does not significantly increase crop yield. Therefore, we combined gamma-aminobutyric acid (GABA) with nitrapyrin to address the limitations of nitrapyrin in enhancing yield. We conducted indoor incubation experiments and pot experiments in Chernozem and Calcic Kastanozem, respectively. The results demonstrated that GABA exerted an influence on the effectiveness of nitrapyrin by altering its degradation rate. In Chernozem, GABA accelerated nitrapyrin degradation, whereas, in Calcic Kastanozem, the results were the opposite. The pot experiment results showed that the combination of nitrapyrin and GABA increased rice total biomass by 5%, grain yield by 18 ± 2%, and plant nitrogen (N) uptake by 9 ± 1% compared to nitrapyrin applied alone. The increase in yield was attributed to the combined effect of nitrapyrin and GABA, which elevated root biomass and leaf area. In contrast, the effect of GABA on yield through altering the degradation rate of nitrapyrin was weaker. Therefore, the combination of nitrapyrin and GABA combined with urea increases rice yields in Chernozem and Calcic Kastanozem. The aim of this endeavour was to foster the development of a novel fertiliser product that offers both favourable agronomic outcomes and environmental benefits. |
The impact of parity, litter size and birth weight variations within a litter on piglet pre-weaning performanceReviewNqobile Lungile Buthelezi, Bohani Mtileni, Khathutshelo Agree Nephawe, Peter Ayodeji Idowu, Mamokoma Catherine Modiba, Hezekiel Mpedi, Takalani Judas MpofuCzech J. Anim. Sci., 2024, 69(7):255-268 | DOI: 10.17221/36/2024-CJAS Sows are selected for their prolificacy. Therefore, assessing difficulties that can be associated with large litters is crucial. This review aims to highlight the factors that can affect reproductive performance such as breed, parity, litter size, environment, and nutrition. Understanding these factors can help producers make informed decisions about sow management and other aspects. Higher within-litter variation is the result of a high number of piglets born. It has been determined that large litter sizes pose a risk to animal welfare in the pig industry. Moreover, large litters bring more piglets with low birth weight leading to high pre-weaning losses. Lighter littermates struggle to get enough colostrum due to the competition with heavy littermates, which lowers their chances of survival causing high mortality. Larger litters may cause greater stress and discomfort of the sow. Therefore, applying stress-free environment and treating the sow with anti-inflammatory compounds may enhance the sow performance and consequent survival of piglets. The litter size is positively correlated with the variation in birth weight within a litter, while the average weight at birth is negatively related to litter size. Producers should therefore focus on potential management strategies that can improve piglet performance, survival and welfare such as proper supervision and adequate colostrum intake. This review highlights the historical development of the pig industry and literature on the variation in piglet weight at birth within a litter, factors influencing weight at birth, and the potential effects on the piglet performance before weaning. Also, the difficulties amongst large litters and possible strategies for managing survival in large litters were also reviewed. |
Control of odour and gaseous emissions from livestock buildings: Recent research and developmentsReviewRoger Jay Lamadrid De VelaRes. Agr. Eng., 2024, 70(4):181-197 | DOI: 10.17221/55/2024-RAE One major challenge in the continuous growth of the livestock industry is the increased emission of odorous gases, which is not just a nuisance but also a cause of serious health and environmental concerns. Several strategies which aim to: (i) reduce the formation of odorous gases; (ii) enhance dispersion of odour; (iii) capture odour and gases to prevent escape to the environment; and (iv) reduce odour and gaseous concentrations, are developed. These are achieved with the use or employment of one or more of: (i) diet manipulation techniques; (ii) additives and adsorbents; (iii) covers; (iv) shelterbelts or windbreaks; (v) ventilation systems; (vi) biofilters; and (vii) air scrubber. The advantages and limitations of each of these strategies are discussed in this review in order to guide the choice of which strategy to use in a specific livestock application. Moreover, this review also discusses potential researchable areas in the field of odour control in livestock facilities. |
Antifungal effect of fresh and stored olive mill wastewater and its ethyl acetate extract against plant pathogenic fungiOriginal PaperRaja Jarboui, Mona Saber Azab, Hallouma Bilel, Shaima M.N. MoustafaPlant Protect. Sci., 2024, 60(1):65-79 | DOI: 10.17221/91/2023-PPS Olive mill wastewater (OMW) has serious environmental implications due to its high organic matter content, particularly its phenolic compounds. Using OMW in crop protection has been suggested as an environmentally friendly alternative to reduce the impact of chemical pesticides on human health and the environment. This study aimed to investigate the antifungal activity of fresh and stored OMW, as well as its ethyl acetate extract, against several phytopathogenic fungi: Syncephalastrum racemosum, Paramyrothecium roridum, Fusarium oxysporum, and Verticillium dahliae. OMW was stored at 25 °C and 45 °C for three months, and both fresh and stored OMW were used in non-sterile, sterile, and centrifuged conditions. Phenolic and flavonoid compounds were extracted and identified by high-performance liquid chromatography (HPLC) analysis. Results showed that fresh OMW and its derivative compounds significantly inhibited the studied fungi. In contrast, OMW storage, sterilization, and centrifugation increased the mycelium growth of the fungi, particularly S. racemosum, which demonstrated relative resistance to stored OMW and its ethyl acetate extract. During storage, some phenolic and flavonoid compounds disappeared (resorcinol and vanillic acid), while the concentration of others increased (gallic acid, chlorogenic acid, and quercetin). This work highlights the potential use of fresh OMW as a bio-agent to protect plants from fungal diseases. |
