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Soil organic matter quality of variously managed agricultural soil in the Czech Republic evaluated using DRIFT spectroscopyOriginal PaperLenka Pavlù, Jiøí Balík, Simona Procházková, Petra Vokurková, Ivana Galu¹ková, Ondøej SedláøSoil & Water Res., 2023, 18(4):281-291 | DOI: 10.17221/89/2023-SWR This study focuses on the effect of agricultural soil management on soil organic matter (SOM) composition. The addition of manure and crop residues was tested under different pedoclimatic conditions. The quality of SOM was assessed using diffuse reflectance infrared spectroscopy. The following parameters were calculated from the spectra: sum of aliphatic bands (ΣAL), aromatic bands at wave numbers 1 620 and 1 520 cm–1 (AR1620 and AR1520), potential wettability (PWI), organic matter quality (OMQ), and decomposability (DI) indexes. The addition of manure or crop residues may not cause fundamental changes in the qualitative composition of SOM. Rather, pedoclimatic conditions determine which components are fixed in the soil on a long-term scale. A dominant effect of soil type was found in the distribution of all spectral parameters studied using main effect ANOVA. The main differences between the soil types concern the aromatic, oxygen and nitrogen groups contained in the SOM. Chernozems are soils with higher OMQ and DI, whereas Cambisols are soils with low OMQ and DI and the highest PWI. The stabilisation of SOM in soils can thus be based on the biochemical persistence of organic molecules, their specific affinity for minerals and the formation of aggregates that protect enclosed SOM. |
Overview of the control of plant fungal pathogens by natural products derived from medicinal plantsReviewMing Jiang, Tong Wang, Jesus Simal-Gandara, Chandra Nayaka Siddaiah, Xiaofeng Dai, Jieyin Chen, Dan Wang, Zhiqiang KongPlant Protect. Sci., 2023, 59(4):303-316 | DOI: 10.17221/17/2023-PPS Chemical fungicides can cause drug resistance of plant pathogenic fungi, environmental pollution, and potential threats to humans and animals. Therefore, developing low-toxicity, high-efficient and environment-friendly biological control products is critical for green prevention, controlling plant fungal diseases, and maintaining ecological balance. Biocontrol research mainly includes the following aspects: antagonistic microorganisms, fungicidal proteins, RNA interference techniques and botanical fungicides. Significantly, natural products extracted from medicinal plants are valuable repertoire for inhibiting plant fungal diseases. This review systematically reviewed the research advances of using natural products from medicinal plants to inhibit plant pathogenic fungi, including the types of natural products, extraction methods, and antifungal mechanisms. The further prospects for the study and application, which provide the reference for botanical fungicide development and practical application in preventing and controlling plant fungal disease, were also discussed. |
Polymorphism of Bolivian accessions of Arachis hypogaea L. revealed by allergen coding DNA markersOriginal PaperJana ®iarovská, Lucia Urbanová, Julio Montero-Torres, Adam Kováèik, Lucia Klongová, Rohit Bharati, Sandra Romero-Ortega, Eloy Fernández-Cusimamani, Olga LeunerPlant Soil Environ., 2023, 69(12):615-627 | DOI: 10.17221/306/2023-PSE Arachis hypogaea L. is an annual legume that is one of the most consumed plant species. On the other hand, it belongs to one of the most monitored clinically important allergens worldwide. The polymorphism of this species based on allergen coding genes could be useful in its characterisation, but previously, no allergen-based marker techniques have been developed for peanuts. A new type of DNA-based markers of coding regions were used to analyse the variability of 21 peanut accessions – BBAP (Bet v1 based amplicon polymorphism), PBAP (profilin based amplicon polymorphism), and VBAP (vicilin based amplicon polymorphism). All of the used technique provided polymorphic fingerprints and distinguished the analysed peanut accessions. The effectivity of these techniques corresponds to the presence of the allergen homologous sequences that are a part of the A. hypogaea genome. VBAP was the most effective in distinguishing the analysed peanut accessions when compared to the results of BBAP and PBAB. For BBAP, two of the analysed accessions provided the same fingerprinting pattern. The ability of the used markers to detect polymorphisms was comparable, with an average polymorphism information content (PIC) value of 0.47. |
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. |
Genetic diversity and proteomic analysis of vegetable soybean (Glycine max (L.) Merrill) accessions grown in mineral and BRIS soilsOriginal PaperNor Hafizah Zakaria, Mohd Shukor Nordin, Maizatul Akma Ibrahim, Fadzilah Adibah Abdul Majid, Zarina ZainuddinCzech J. Genet. Plant Breed., 2023, 59(1):14-22 | DOI: 10.17221/38/2022-CJGPB Knowledge of the molecular mechanisms of response to environmental stress is fundamental for the development of genetically stress-tolerant crops. This study aims to find vegetable soybean accessions tolerant to cultivation in stressful tropical environments. Fourteen accessions of the vegetable soybean (Glycine max (L.) Merrill) were grown in mineral and beach ridges interspersed with swale (BRIS) soils. The genetic diversity, estimated using inter-simple sequence repeat (ISSR) markers, revealed 42.50% polymorphism and was regarded as moderate. The unweighted pair-group method arithmetic average (UPGMA) analysis allocated the tested accessions into five major clusters at a similarity coefficient level of 0.43. The lowest values of the genetic distance were between IIUMSOY11 and IIUMSOY13 & IIUMSOY13 and IIUMSOY14, indicating that these accessions were more genetically distant from the other accessions. Ten differentially expressed proteins were identified in the three selected accessions IIUMSOY1, IIUMSOY11 and IIUMSOY14 using mass spectrometry, revealing a unique expression of the proteins involved in the storage, flavonoid metabolism, protein modification, oxidative stress defence, carbohydrate metabolism and respiratory chain. The findings may be valuable for the selection of genetically diverse accessions, to enhance the breeding of vegetable soybean genotypes suitable for stressful tropical environments. |
Radial growth, present status and future prospects of west Himalayan fir (Abies pindrow Royle) growing in the moist temperate forest of Himalayan mountains of PakistanOriginal PaperZahid Rauf, Adam Khan, Samina Siddiqui, Sidra Saleem, Tahir Iqbal, Safdar Ali Shah, Nowsherwan Zarif, Wahiba IqbalJ. For. Sci., 2022, 68(9):344-356 | DOI: 10.17221/3/2022-JFS Forests play a significant role for maintaining the biodiversity. In order to manage sustainable forests, tree species history, distribution, and their future prospects are vital. Using standardized quantitative approaches, the age, radial growth, and size class distribution of Abies pindrow (Himalayan fir) were determined from three different altitudinal sites (i.e. high, middle, and lower). The results indicate that Himalayan fir growing in the high-altitude site (Ayubia, 2 917 m a.s.l.) of moist temperate forests of the Himalayan mountains showed lower radial growth (0.13 cm) than in the middle (Bara Gali, 2 617 m a.s.l.; radial growth = 0.13 cm) and lower (Kuldana, 2 455 m a.s.l.; radial growth = 0.22 cm) altitude sites. Correlation analysis demonstrated that age showed a significant positive correlation (P < 0.001) with diameter at breast height. The tree-ring width chronology (totally 80 core samples) of Himalayan fir was developed from moist temperate forests of Himalayan mountains of Pakistan. At Ayubia site it possesses a long time-span (1703-2020 C.E.), followed by Bara Gali (1862-2020 C.E.) and Kuldana (1864-2020 C.E.). Further, the tree-ring width (TRW) chronology of Ayubia showed a significant positive correlation (P < 0.05) with May and June temperature, and a significant negative correlation (P < 0.05) with June and October precipitation, indicating that summer temperatures are the key factor for the radial growth of Himalayan fir. For the Kuldana site, the response of TRW chronology to temperature and precipitation was the same, however, it was significant only for June temperature at Bara Gali. The size class distribution of the high-altitude region (Ayubia) showed a higher number of individuals than the lower altitude region, indicating the lowest disturbance conditions. The absence of individuals in the early size classes and the gap in middle and mature size classes indicate a lower regeneration potential and anthropogenic impact. The pointer year analysis indicated that the Bara Gali forest is more sensitive to abnormal climate events than the other sites. Based on the present study, we suggest that proper attention and conservation strategy should be provided to Himalayan fir growing in the moist temperate forests of Pakistan. |
Development and evaluation of a low-cost evaporative cooling system for agricultural product storageShort CommunicationNatesan Kapilan, Vijay Kumar PatilRes. Agr. Eng., 2023, 69(1):48-53 | DOI: 10.17221/41/2021-RAE Agricultural products are highly perishable and, hence, we need to preserve these products after harvest. India is an agricultural country and, thus, the post-harvest storage of perishable agricultural products is important to reduce the gap between the demand and supply. Cold storage technologies have been developed and are used in India; however, these technologies are not popular in rural and remote areas due to the higher initial cost and the electrical energy requirement. Therefore, a number of low-cost technologies have been developed and, among these technologies, the evaporative cooling technology is gaining in popularity due to its simple design and lower initial cost. In this work, we have developed and tested a solar photovoltaic (PV) powered evaporative cooling system and used coconut coir as the cooling medium and compared the results with celdex pad. From this work, we observed that this system is an economical and efficient in reducing the temperature and increasing the relative humidity for the storage of agricultural products. |
Impacts and mechanisms of biochar on soil microorganismsReviewKai Huang, Jun Zhang, Guangming Tang, Da Bao, Tangyu Wang, Deping KongPlant Soil Environ., 2023, 69(2):45-54 | DOI: 10.17221/348/2022-PSE Biochar is a carbonaceous material derived from the pyrolysis of carbon-rich biomass that has attracted increasing research and attention because of its ability to enhance soil carbon storage, increase soil fertility, fix and transform pollutants in soil, and improve the soil environment. These enhancements directly or indirectly affect soil microorganisms’ metabolic activities and community structure. This paper reviews the effects of biochar on soil physicochemical properties, enzyme activities, nutrients, contaminants, and related microbial activities. In addition, this work summarises the possible mechanisms involved in the interaction between biochar and microorganisms and the potential hazards associated with biochar use. Finally, this study aims to provide a theoretical basis for future related research. |
Identification and functional characterization of a new terpene synthase gene from Chrysanthemum indicum var. aromaticumOriginal PaperYu Liu, Wenyue Ji, Xiang Wang, Bin Xia, Miao He, Yunwei ZhouHort. Sci. (Prague), 2023, 50(1):61-71 | DOI: 10.17221/61/2022-HORTSCI Terpene synthase (TPS) is a key enzyme in the synthesis of terpenoids in plants and plays an important role in the regulation of the synthesis of aromatic substances in plants. In this study, we treated Chrysanthemum indicum var. aromaticum as the experimental material to clone the CiTPS gene. The open reading frame of CiTPS is 1 818 bp, encoding a putative protein of 605 amino acids. There is a monoterpene synthase conserved domain and a highly conserved sequence, DDXXD, (N,D)D(L,I,V)X(S,T)XXXE and RRX8W, respectively, which belong to the monoterpene synthase family. The multiple sequence alignment and phylogenetic analysis showed that the CiTPS gene belongs to the TPS-b subfamily. The pBI121-TPS-GFP recombinant plasmid and the pBI121-GFP empty vector plasmid were introduced into Agrobacterium by electroporation and transferred into wild-type tobacco by the Agrobacterium-mediated method. Three transgenic CiTPS lines were screened, and the secretions of wild-type tobacco and transgenic tobacco T1 leaves in the vigorous growth period were analysed. The volatiles of the transgenic lines were similar to those of wild-type tobacco, but their monoterpenes increased significantly, and the sesquiterpenoids and diterpenoids decreased or remained unchanged, indicating that the CiTPS gene is related to the synthesis of the monoterpenes. |
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. |
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Agricultural production trends towards carbon neutrality in response to the EU 2030 Green Deal: Economic and environmental analysis in horticultureOriginal PaperAlessandro Scuderi, Mariarita Cammarata, Ferdinando Branca, Giuseppe TimpanaroAgric. Econ. - Czech, 2021, 67(11):435-444 | DOI: 10.17221/145/2021-AGRICECON The European Green Deal to tackle climate change sets emission reduction targets for 2050. Particular attention has been paid to the agricultural sector, where there is a strong need to reduce carbon emissions and re-establish the natural carbon cycles. The concept of carbon neutrality is emerging in a scenario where it is necessary to reduce carbon dioxide (CO2) emissions from cultivation to near zero. The quantification of carbon emissions was carried out by the carbon footprint (CF) of conventional, organic and zero residue potato cultivation in Sicily. In order to provide farmers and consumers with answers regarding the most sustainable cultivation regime, the results showed that the organic and zero residue methods have the best results in terms of emissions; the latter instead revealed the positive results in economic terms. It becomes a new model to follow in the pursuit of sustainability as it is based on the reduction of synthesis inputs and is free from the constraints imposed by organic production standards. |
The effects of COVID-19 crisis on small family farms: Empirical evidence from Visegrad countriesOriginal PaperIvana Bla¾ková, Veronika Svato¹ová, Gabriela Chmelíková, Vojtìch Tamá¹, Eli¹ka Svobodová, Libor Grega, Simona Mi¹kolci, Jakub Piecuch, Apolka UAgric. Econ. - Czech, 2023, 69(9):366-374 | DOI: 10.17221/217/2023-AGRICECON This paper aims to investigate the effects of the COVID-19 crisis on small family farms in Visegrad countries and to provide evidence of how they have responded and coped with the crisis. We conducted our investigation using an exploratory qualitative research design based on 86 semistructured in-depth interviews with owners or responsible managers, and explored the effects of the COVID-19 pandemic on different areas of their businesses, such as human resources, supplier-customer relations, production, distribution channels or strategies, price of inputs and outputs and business models. Our findings showed that small family farms have been resilient in the face of the COVID-19 pandemic. Several negative impacts were identified, such as a decrease in sales due to the closure of accommodation and restaurant services, delays in the supply of inputs, and minor problems with the availability of workers, but those were perceived to be moderate. However, the COVID-19 pandemic created not only difficult challenges but also opportunities for small farms. Based on our findings, three main recommendations regarding the adaptability and resilience of family farms in Visegrad countries have been formulated: i) the importance of a diversification strategy, ii) selling through short supply chains, and iii) digitalisation of agriculture. |
A quadrigeminal arachnoid cyst as a cause of neurological symptoms in an 11-month-old Brussels Griffon – A case studyCase ReportM Mieszkowska, K Michalska, M Mieszkowski, M Dowgierd, Y ZhalniarovichVet Med - Czech, 2023, 68(8):343-348 | DOI: 10.17221/53/2023-VETMED
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Potential of mixed Picea abies (L.) Karst. and Pinus sylvestris L. forests in lowland areas of Central BohemiaOriginal PaperPavel Brabec, Jakub Brichta, Zdenìk Vacek, Stanislav Vacek, Václav ©imùnek, Vojtìch HájekJ. For. Sci., 2023, 69(11):470-484 | DOI: 10.17221/76/2023-JFS Mixed forests play a key role in terms of stability, production potential, and adaptation to climate change. In addition, the studied Norway spruce [Picea abies (L.) Karst.] and Scots pine (Pinus sylvestris L.) belong to the most economically important tree species in Europe. The objectives were to determine the effect of the species composition of these two tree genera on the production, structure, diversity, and growth of mixed stands at lower elevations in the Czech Republic. Based on dendroecological samples, research was also carried out on the influence of climatic factors and climate change on the radial growth of these trees of interest. Mixed forests showed higher timber production by 29.8% compared to spruce and pine monocultures. The production of mature stands ranged from 328 to 479 m3·ha–1. Spruce achieved higher radial growth, but its growth variability was higher than that of pine. Compared to precipitation, temperatures had a greater influence on the radial growth of both tree species, especially in the growing season. In terms of diversity, mixed stands achieved significantly higher structural differentiation and overall diversity compared to monospecific variants. Mixed stands can achieve higher production potential, diversity, and especially resistance to climatic extremes in the lowland regions of the Czech Republic. The differences between mixed stands and monocultures, i.e. the effect of tree species mixing, depend on the appropriate proportions of tree species and their spatial pattern. |
Putrescine improves salt tolerance of wheat seedlings by regulating ascorbate and glutathione metabolism, photosynthetic performance, and ion homeostasisOriginal PaperXinliang Zhao, Yibo Zhang, Xiaoqing Zhang, Changjuan ShanPlant Soil Environ., 2023, 69(11):512-521 | DOI: 10.17221/312/2023-PSE
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Understanding the role of ecotypic factors in the early growth of Pinus sylvestris L.Original PaperJakub Hejtmánek, Jan Stejskal, Daniel Provazník, Jaroslav ÈeplJ. For. Sci., 2023, 69(12):539-549 | DOI: 10.17221/102/2023-JFS The ecological significance of Scots pine (Pinus sylvestris L.) in Europe, especially in areas devastated by bark beetles, has led to its consideration as a substitute for Norway spruce. This pioneering species boasts sun and drought tolerance, fast growth, and wood industry value. To gauge its potential, we examined two ecotypes across two test sites over two years, focusing on height and growth increment. Through statistical analysis employing R software and linear mixed models, we assessed heritability, genotype by environment interaction, and spatial correlations. Both ecotypes exhibited significant differences in height and increment, varying by year and site. Heritability was higher in the second year, with increment showing greater stability. Genetic correlations between sites were evident, suggesting stable increment ranking across locations. These findings underscore the role of ecotypic variation in Scots pine growth, advocating for its consideration in reforestation. Acknowledging such dynamics is vital for effective forest management and reforestation in Central Europe, promoting sustainability and informed decision-making. Further research will enhance this understanding of preserving and enhancing the region's tree populations. |
Determination of some heavy metals in different wheat flour brands in Sulaimani, Kurdistan Region – IraqOriginal PaperMuhammad Faruq Wahab, Dara Muhamed JamilCzech J. Food Sci., 2023, 41(6):455-461 | DOI: 10.17221/85/2023-CJFS Wheat flour is one of the most important sources of nutrients, and it is widely consumed worldwide as a raw ingredient in bread and other pastries. High heavy metal concentrations in the consumed wheat products could induce higher health risks. This study evaluated the heavy metal concentrations in the most available foreign and domestic wheat flour in Sulaimani, Kurdistan Iraq. The wheat flour samples were collected from different locations, and the heavy metal concentration was measured by inductively coupled plasma optical emission spectrometry (ICP-OES). The mean values in wheat flour samples were roughly within the permissible limit set by Iraqi standard (IQS), GCC Standardization Organization (GSO) (GCC – Gulf Cooperation Council), Codex, and FAO/WHO. Heavy metals were detected in the descending order copper (Cu) > lead (Pb) > arsenic (As) > chromium (Cr) > nickel (Ni) > cadmium (Cd) > cobalt (Co). The results showed that wheat flour samples from the Sulaimani markets were slightly contaminated with Ni, and one domestic wheat flour sample with Pb was probably linked to fertiliser and soil contamination. It is concluded that wheat flour could be a source of chronic exposure to toxic heavy metals such as nickel and lead, resulting in adverse health issues later. Consequently, regular monitoring of soil contamination, water quality, and use of recommended levels of fertilisers and pesticides in the agricultural areas of Sulaimani are recommended. |
Phenotyping winter wheat for early ground coverOriginal PaperYuksel KayaCzech J. Genet. Plant Breed., 2022, 58(4):189-200 | DOI: 10.17221/91/2021-CJGPB The relationship between the early ground cover and the grain yield in winter wheat is not yet fully understood. In a winter wheat breeding programme, selection for early ground cover is traditionally made using visual scoring. Although visual scoring is preferred as a phenotypic screening tool by wheat breeders, its output may not be reliable, as it requires experience. A smartphone camera-based digital image technique can be recommended as a feasible, reliable, repeatable, affordable, and fast selection tool for early ground cover in wheat as an alternative to visual scoring. For this purpose, two wheat trials were conducted in the 2017-2018 and 2019-2020 seasons. In both seasons, 215 wheat genotypes in total, together with three checks from spring wheat, were tested under rain-fed conditions in the spring wheat zone in Turkey. All the tested wheat genotypes were grouped into spring, facultative, and winter growth habit using visual scoring. Simultaneously, photos were taken from each plot with a smartphone camera, and the early ground cover (%) was estimated using the smartphone camera-based digital image technique. The relationships between grain yield, visual scoring, and early ground cover could so be estimated. In both seasons, significant negative correlation between grain yield and visual scoring (r = -0.679** and r = -0.704**, respectively) and significant positive correlation between the grain yield and the early ground cover (r = 0.745** and r = 0.747**, respectively) were observed. The correlation between visual scoring and early ground cover were negative (r = -0.862** and r = -0.926**, respectively). The broad sense heritability estimates in both seasons were 0.51 and 0.85, respectively, for early ground cover, 0.91 and 0.94 for visual scoring, and 0.86 and 0.69 for grain yield. In this study, we revealed that testing winter wheat genotypes in the spring wheat zone rather than in the winter wheat zone could be a more effective way to unveil the positive relationship between the early ground cover and the grain yield. We have shown that the smartphone-based digital image technique is a useful selection tool for early ground cover in winter wheat. |
Effects of biochar on soil chemical properties: A global meta-analysis of agricultural soilOriginal PaperZenghui Sun, Ya Hu, Lei Shi, Gang Li, Zhe Pang, Siqi Liu, Yamiao Chen, Baobao JiaPlant Soil Environ., 2022, 68(6):272-289 | DOI: 10.17221/522/2021-PSE Improved soil properties are commonly reported benefits of adding biochar to agriculture soils. To investigate the range of biochar's effects on soil chemical properties (e.g., soil pH, electrical conductivity (EC), cation exchange capacity (CEC), soil organic carbon (SOC), soil total carbon (TC), and soil carbon-nitrogen ratio (C:N ratio)) in response to varied experimental conditions, a meta-analysis was conducted on previously published results. The results showed that the effect of biochar on soil chemical properties varied depending on management conditions, soil properties, biochar pyrolysis conditions, and biochar properties. The effect size (Hedges'd) of the biochar was greatest for SOC (0.50), the C:N ratio of soil (0.44), soil pH (0.39), TC (0.35), EC (0.21), and CEC (0.20). Among the various factors examined by aggregated boosted tree analysis, the effects of biochar on soil chemical properties were largely explained by the biochar application rate, initial soil pH, and soil sand content. In conclusion, our study suggests that improving soil chemical properties by adding biochar not only requires consideration of biochar application rates and chemical properties but also the local soil environmental factors, especially soil initial pH and sand content of the soil, should be considered. |
The economic well-being of smallholders and challenges during COVID-19 pandemic: A reviewReviewNurul Atiqah Binti Mohd Suib, Norlida Hanim Mohd Salleh, Mohd Fazim AhmadAgric. Econ. - Czech, 2023, 69(1):35-44 | DOI: 10.17221/344/2022-AGRICECON The challenges smallholders face in agricultural management between developed and developing countries differ and can also impact the smallholder's well-being. The purpose of this study is to identify factors that affect the well-being of smallholders. We conducted a systematic literature by applying the Preferred Reported Item for Systematic Review and Meta-Analysis (PRISMA) and extracted 30 articles from Scopus and Web of Science. These articles show three main factors that drive well-being: technology, optimal resource, and insurance, and two additional factors: market pricing and tax policy. Findings show that all the above factors will first impact economic well-being and, subsequently, social well-being. When COVID-19 struck, the smallholder's well-being was also affected in addition to the destabilised food chain. Travel restrictions have led to a labour shortage. The smallholders had to turn to e-commerce to sell their products. They also incurred losses and experienced difficulties in procuring agricultural intermediate inputs. The absence of agricultural insurance worsened the impact on the well-being of the smallholders. To safeguard the well-being of these smallholders, the study suggests that stakeholders should encourage local labour participation, increase investment in human capital, adopt e-commerce in marketing, offer agricultural insurance schemes against various disasters and continuously provide or increase subsidies to smallholders. |
Reducing greenhouse gas emission by alternation of the upland crop rotation in the Mekong Delta, VietnamOriginal PaperVan Dung Tran, Kim Thu Nguyen, Nguyen Hoang Phuc Ho, Nguyen Thanh Lich Duong, Ngoc Minh Tam Vu, Thi Phong Lan Nguyen, Long Vu Van, Ben MacDonaldSoil & Water Res., 2023, 18(1):16-24 | DOI: 10.17221/44/2022-SWR Agricultural production is one of the main sources of anthropogenic greenhouse gas (GHG) emissions, contributing 50% and 60% of CH4 and N2O emissions, respectively. This study evaluated the rice yield and components, the CH4 and N2O emissions and the global warming potential between the triple rice (R-R-R) and sesame-rice rotation (S-R-R) systems in Can Tho city, Vietnam. The experiments were conducted in 3 cropping seasons: Spring-Summer 2016, Summer-Autumn 2016, and Winter-Spring 2016-2017. The results showed that there was no significant difference in yield components and grain yield between triple rice and rotation systems. The application of sesame rotation in rice-based could reduce the CH4 and N2O emission by 30.5% and 18.7%, respectively. Global warming potential in the S-R-R rotation was 9860 kg CO2e/ha, significantly lower than the R-R-R rotation (12410 kg CO2e/ha) by 20.6%. These results show that the S-R-R rotation has the potential to mitigate GHG emissions, especially CH4, which contributes to a large amount of emissions in rice cultivation. |
Inorganic and organic foliar fertilization in olivesReviewSavros Sotiropoulos, Christos Chatzissavvidis, Ioannis Papadakis, Viktor Kavvadias, Christos Paschalidis, Chrysovalantou Antonopoulou, Antonia KorikiHort. Sci. (Prague), 2023, 50(1):1-11 | DOI: 10.17221/69/2022-HORTSCI The application of nutrient solutions to the foliage of plants is an alternative means to fertilise crops. Foliar fertilisation is used to overcome the disadvantages of soil applications. Variable plant responses to these foliar fertilisation spray solutions have often been described in the literature. However, knowledge about the penetration mechanisms, the role of a leaf-applied inorganic or organic solution, and the results obtained by its application is still limited. The complex character of the factors determining the effects of sprays hinders the development of suitable foliar fertilisation strategies, applicable under variable local conditions and for various plant types. This review describes some basic factors involved in the penetration process of foliar sprays in olive (Olea europaea L.) trees. Chemistry, leaf penetration, and plant nutrition principles will be merged with the aim of clarifying the constraints, opportunities, and future perspectives of sprays to cure olive tree nutrient deficiencies and, hence, both increase the yield and improve the fruit quality. |
Detection of the T1640C RYR1 mutation indicating malignant hyperthermia in dogsShort CommunicationJ Haluskova, B Holeckova, L Kokulova, M Galdikova, J Bucan, V Schwarzbacherova, S SedlakovaVet Med - Czech, 2023, 68(11):428-434 | DOI: 10.17221/46/2023-VETMED Malignant hyperthermia (MH) is a clinical syndrome exhibiting elevation of expired carbon dioxide, hyperthermia, muscle rigidity, rhabdomyolysis, acidosis and hyperkalaemia, as well as cardiac dysrhythmia and renal failure. The syndrome manifests itself as a response to anaesthetic agents, such as e.g., halothane, desflurane, and succinylcholine. Depending on the animal species, MH is characterised by autosomal dominant or recessive inheritance, and so far two genes have been identified whose mutations can be linked to MH: RYR1 and CACNA1S. In different species, various mutations of the RYR1 gene have been described which may underlie MH. One of these mutations in dogs is T1640C, which results in the substitution of alanine for valine of the amino acid 547 (V547A) in the RYR1 protein. In our work, we aimed to investigate MH at the DNA level by identifying the T1640C mutation in a group of 50 dogs. For this purpose we used the PCR-RFLP technique, and in six dogs also direct sequencing of PCR products and subsequent comparison of their sequences with the RYR1 gene sequence in an online database. The results of our study show that none of the dogs analysed had any mutant allele of the RYR1 gene, indicating that none should be affected by MH. |
Effect of bioengineering treatments on reduction of soil erosion from road cut slope and fill slopeOriginal PaperAidin Parsakhoo, Seyed Ataollah HosseiniJ. For. Sci., 2023, 69(9):367-376 | DOI: 10.17221/55/2023-JFS The efficiency of different conservation practices on soil loss from road side slopes is scarcely identified in the Hyrcanian forests of Iran, which could retard the implementation of these management practices. Sediment of 48 plots on the cut slopes and fill slopes of forest roads were collected to explore their responses to soil conservation practices, including straw bale (SB), living hedge (LH), dead hedge (DH), geo-cell (GC), geotextile (GT), and bare soil (BS). Moreover, the efficiency of conservation practices was evaluated to find a cost-effective approach. Sediment traps were installed at the toe of side slopes in the ditch and end of each treated plot. Sediment volume was measured monthly for six months. The results demonstrated that the lowest soil loss occurred in autumn and fill slopes treated with GC (5.05 g·m–2) and the highest in winter and cut slopes treated with SB (41.81 g·m–2). In all cases, soil loss from BS (126.74 g·m–2) was significantly higher than in plots treated with conservation practices. GC performed well under certain circumstances due to two-dimensional protections of contiguous wooden lumbers. Moreover, it was found that in a short time there were not any significant differences between LH (28.78 g·m–2), DH (36.01 g·m–2), and GT (30.61 g·m–2) in soil loss control ability. Regarding implementation and installation costs, GC (USD 16.67 per plot) was the most expensive, while LH (USD 3.33 per plot) was the cheapest. Regarding GC, it is necessary to conduct long-term research to determine economic efficiency, durability, maintenance, and repair costs. Until then, it is possible to use affordable treatments such as LH, which have yielded favourable results in efficiency. |
Molybdoenzymes isolated from S. glanis liver can produce nitric oxide from nitrates and nitritesOriginal PaperKarlygash Aubakirova, Mereke Satkanov, Maral Kulataeva, Gulmira Assylbekova, Aigul Kambarbekova, Zerekbai AlikulovCzech J. Anim. Sci., 2023, 68(5):222-230 | DOI: 10.17221/206/2022-CJAS
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Impact of lard-based diacylglycerols on the quality and sensory characteristics of emulsion-type sausageOriginal PaperXiaoqin Diao, Weiting Sun, Dengyong Liu*, Haining Guan*, Ruixin Jia, Ying WangCzech J. Food Sci., 2023, 41(3):196-203 | DOI: 10.17221/111/2022-CJFS
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Problems in cabbage stem weevil control (Ceutorhynchus pallidacytlus Marsh.) in winter oilseed rapeOriginal PaperMarek Seidenglanz, Jaroslav ©afáø, María Muñoz Arbeález, Petr Hedìnec, Eva Hrudová, Romana Bajerová, Pavel KolaøíkPlant Protect. Sci., 2022, 58(3):220-233 | DOI: 10.17221/153/2021-PPS Due to the length of egg-laying period (> 80 days), two applications of insecticides against cabbage stem weevil (Ceutorhynchus pallidactylus Marsh.) are currently needed. However, resistance of pollen beetle (Brassicogethes aeneus F.) to pyrethroids complicates the choice of suitable insecticide for the second application. The active ingredients cypermethrin, etofenprox, pymetrozine, indoxacarb and chlorpyrifos-ethyl applied as second spring applications to winter oilseed rape crops were assessed under field conditions from 2016 to 2018 to ascertain how they could reinforce the effects of the first spring application (beta-cyfluthrin) on cabbage stem weevil. Chlorpyrifos-ethyl and etofenprox strengthened the effects of the first spring spray on cabbage stem weevil markedly more than cypermethrin. Pymetrozine and indoxacarb, effective on resistant populations of pollen beetles, showed the lowest contribution to increase the effects. Indoxacarb showed a low effect on C. pallidactylus in laboratory tests too. The impacts of the bans on active ingredients chlorpyrifos-ethyl and pymetrozine are discussed. |
Culture of Steinernema glaseri on three solid media and their virulence against Galleria mellonella larvaeOriginal PaperCarlos I. Cortés-Martínez, Adriana Ines Rodríguez-Hernández, Ma del Rocío López-Cuellar, Norberto Chavarría-Hernández, Rodolfo De los Santos RomeroPlant Protect. Sci., 2023, 59(3):278-283 | DOI: 10.17221/1/2023-PPS Steinernema glaseri is a potential biocontrol agent against white grubs of the Phyllophaga spp. complex; however, its suitability for in vitro multiplication has been scarcely investigated. In this study, the effects of the surface culture of NJ-43 strain with its symbiotic bacteria Xenorhabdus poinarii on egg-yolk agar (P2), chicken-liver agar and nutrient meat-peptone (MP) agar on infective juvenile (IJ) productivity and their virulence against Galleria mellonella larvae were investigated. The bacteria on the surface of the agar were first incubated in darkness at 30 °C for 54–102 h, and then 100 surface-sterilised IJs were added. After two harvests, the accumulated productivity was higher on chicken-liver agar (536 × 103 IJs/m2 day) and P2 agar (534 × 103 IJs/m2 day) than on nutrient MP agar (58 × 103 IJs/m2 day). The mean virulence of the in vitro produced IJs was 46–60% and showed no statistically significant difference among the three culture media. In conclusion, the maximum multiplication factor of S. glaseri NJ-43 on solid media was 385, and its original virulence was retained. |
Evaluation of plant growth regulators for control of dormancy in apricot (Prunus armeniaca L.)Original PaperTomá¹ Neèas, Eli¹ka Zezulová, Ivo Ondrá¹ek, Tomá¹ Kiss, Jan NámìstekHort. Sci. (Prague), 2023, 50(3):175-188 | DOI: 10.17221/135/2022-HORTSCI
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