Fulltext search in archive
Results 2191 to 2220 of 5716:
Herbicide drift vs. crop resilience – the influence of micro-ratesOriginal PaperMilan Brankov, Bruno Canella Vieira, Milo¹ Rajkoviæ, Milena Simiæ, Jelena Vukadinoviæ, Violeta Mandiæ, Vesna DragièeviæPlant Soil Environ., 2023, 69(4):161-169 | DOI: 10.17221/58/2023-PSE A greenhouse study was conducted to test the effects of low herbicide dose exposure on different crops measuring visible damages, plant height, leaf area, and dry matter. Seven crops were tested: lettuce (Lactuca sativa L.) cv. Novosadska majska maslena, oil pumpkin (Cucurbita maxima Duch) cv. Olivija, oilseed rape (Brassica napus L.) cv. NS Ras, pepper (Capsicum annuum L.) cv. Kurtovska kapija, soybean (Glycine max (L.) Merr) cv. ZP Laura, sunflower (Helianthus annuus L.) cv. NS Kruna, and tomato (Solanum lycopersicum L.) cv. Dunavski Rubin. Herbicide dicamba in the range of 0.14 to 1 155.6 g a.i. (active ingredient)/ha inhibited biomass, height, leaf area, and visual injury of all crops, while glyphosate doses from 0.48 to 3 840 g a.i./ha also reduced the growth of all tested species. A rate of 116 g a.i./ha mesotrione was needed to reach 80% visual injury in oilseed rape, while the same effects on lettuce only required 1.8 g a.i./ha of mesotrione. Tomato and oil pumpkin were also sensitive to low mesotrione doses, where only 1.3 g and 0.5 g a.i./ha of mesotrione was needed for 80% of biomass reduction, respectively. Lettuce was the most sensitive crop of all tested species; biomass was reduced by 80% by dicamba, glyphosate, mesotrione, and nicosulfuron at the low rates of 33 g a.i./ha, 19 g a.i./ha, 1.25 g a.i./ha, and 2.7 g a.i./ha, respectively. Among all herbicides, visible injuries were detected in dicamba at the lowest rates. Soybean was the most tolerant of glyphosate, mesotrione, and nicosulfuron. Based on the available literature and obtained results, herbicide off-target movement must be mitigated to maximise herbicide efficacy and decrease the negative influence on susceptible plants and the environment. |
|
Pyrethroid susceptibility and oxidative detoxification mechanism in Colorado potato beetle and western corn rootwormOriginal PaperDaria Dworzañska, Joanna Zamojska, Pawe³ Wêgorek, Pawe³ K. Bere¶, S³awomir DrzewieckiPlant Protect. Sci., 2023, 59(2):174-184 | DOI: 10.17221/53/2022-PPS The Colorado potato beetle (CPB) and the western corn rootworm (WCR) are among the world’s most expansive insect pests. The aim of the study was to assess, for the first time in Poland, the levels of susceptibility to deltamethrin and tau-fluvalinate in the WCR and to determine the current status of susceptibility to those active substances in the CPB. In addition, the role of oxidative metabolism in the detoxification of pyrethroids was determined using piperonyl butoxide (PBO). The study found pyrethroid resistance in the CPB populations. The WCR populations exhibited “high susceptibility”, “susceptibility”, “low resistance” and “medium resistance” to the pyrethroids tested. Experiments using PBO showed that oxidative enzymes are involved in the deltamethrin detoxification mechanism in the CPB, although the effectiveness of this mechanism in Poland is decreasing. PBO was found to be highly toxic to the WCR populations. The findings from this study should be taken into account when developing a strategy to prevent the development of resistance in the pest species. The results for the toxicity of PBO to Polish WCR populations demonstrated that the enzymes inhibited by PBO are involved in important metabolic processes, which should be considered when developing innovative control methods for this pest. |
Influence of primary tillage on the displacement of soil particlesOriginal PaperPavel Bro¾, Josef HùlaRes. Agr. Eng., 2023, 69(2):101-106 | DOI: 10.17221/76/2022-RAE
|
Immunohistochemical analysis of extracellular signal-regulated kinase expression in mature and immature bulls’ testes and epididymidesOriginal PaperS Jang, C Yun, B Kim, S Kang, J Lee, S Jeong, Y Cho, K Sung-Ho, L Chang-Min, C Moon, K Joong-SunVet Med - Czech, 2023, 68(6):231-237 | DOI: 10.17221/34/2023-VETMED Extracellular signal-regulated kinase (ERK) has been implicated in mammalian testicular and epididymal development. This study aimed to investigate ERK expression in the immature and mature testes and epididymides of bulls. We evaluated ERK expression using immunoblot analysis and immunohistochemistry. Immunoblot analysis revealed that immature bull testes and epididymides had higher phosphorylated ERK (pERK) expression than mature bull testes and epididymides. pERK immunoreactivity was higher in immature epididymides than in immature testes. pERK was localised mostly in spermatogonia, undifferentiated sustentacular (Sertoli) cells, and interstitial (Leydig) cells in immature testes, as well as in some spermatocytes and spermatids in mature testes. In immature epididymides, the body and tail had higher pERK expression than the head, whereas pERK was broadly distributed throughout the stereocilia, basal cells, and connective tissues. pERK distribution in the head of mature epididymides was similar to that in immature epididymides, whereas few connective tissue cells were expressed in the body and tail of mature epididymides. Collectively, these results suggest that ERK is expressed in the testis and epididymis of immature and mature bulls with varying intensities, and the role of ERK in male reproductive organs may include the specific function of its development. |
|
Clinical infection of Brucella canis in a companion dog with discospondylitis in the Republic of KoreaCase ReportJH Seo, YI Oh, SH Kim, KW Seo, BJ KangVet Med - Czech, 2023, 68(7):293-298 | DOI: 10.17221/37/2023-VETMED A 2-year-old, spayed female, Bichon Frise dog was presented with reluctance to exercise, back pain, and frequent sitting down. Multiple osteolysis, periosteal proliferation, and sclerosis of the vertebral endplates of T11–13 were observed in the radiography, computed tomography, and magnetic resonance imaging. The bacterial culture of the urine specimen, the polymerase chain reaction (PCR) of the blood, and the antibody tests were positive for Brucella canis. Accordingly, discospondylitis caused by B. canis was diagnosed and doxycycline was administered. The clinical signs resolved and the culture and PCR results were negative afterwards. Doxycycline was discontinued after 6 months. The clinical signs recurred 2 weeks later, and the combination treatment of doxycycline and enrofloxacin was initiated. Though no clinical signs were observed after 9 months and the bacterial cultures and PCR were negative, the antibody titre remained at 1 : 200 or more. The dog will continue taking antibiotics until the antibody titre drops. To the best of our knowledge, this is the first case report of a clinical infection of B. canis associated with canine discospondylitis in the Republic of Korea. Although the clinical signs of brucellosis might improve with antibiotic treatment, the disease cannot be cured due to Brucella’s various strategies to evade host immune systems. Specifically, it can proliferate and replicate within the host cells, resulting in an environment that makes treatment less effective. Furthermore, owing to its zoonotic potential, owners and veterinarians should consider lifelong management or euthanasia. |
Herbicides and nutrients interaction on earthworm activity in tomato cultivated soil and toxicity appraisalOriginal PaperPavani Yerra, Ponnusamy Janaki, Alaguthevar Ramalakshmi, Ramasamy Jagadeeswaran, Arjunan Sankari, Palanisamy Murali ArthanariPlant Soil Environ., 2023, 69(9):429-436 | DOI: 10.17221/223/2023-PSE While nutrients are administered through various sources and combinations, herbicides are used for pre-plant and pre-emergence weed control in the tomato fields. Therefore, a study was conducted to understand the effects of nutrient fertilisation through inorganic and organic sources along with farmers practice and the application of three herbicides, namely glyphosate, pendimethalin, and metribuzin, individually or in combinations, on earthworm activity in tomato crops. The herbicides caused a significant reduction in earthworm biomass and escapement to the lower 15 cm depth. Application of pendimethalin and metribuzin to soils inorganically fertilised with major and micronutrients resulted in low survival rates and a high ecological risk quotient. The effect was attenuated when farmyard manure was applied. The study suggests that when 2 to 3 herbicides are applied in succession and combined with inorganic fertilisers as nutrient sources, stringent measures like adding organic nutrient sources, applying the correct herbicide combination, etc., must be followed to reduce their toxicity to earthworms. This helps to protect and sustain earthworm activity and biodiversity in the soil. |
Chemical relationships in earthworm casts of two urban green spaces indicate the earthworm contribution to urban nutrient cyclesOriginal PaperMadalina Iordache, Iacob Borza, Valentina AndriucãSoil & Water Res., 2023, 18(4):219-226 | DOI: 10.17221/26/2023-SWR Due to the earthworms’ implications in nutrient cycles through their burrowing and casting activity, earthworms are worth considering when urban biogeochemical cycles are analysed. Several chemical parameters and their relationships were analysed in earthworm casts of two urban parks, namely the pH, total organic carbon (TOC), total nitrogen (Nt), plant available phosphorus (P), plant available potassium (K), and calcium water soluble (Ca). It was statistically significantly found that the TOC, Nt, P and K are reciprocally determined in the earthworm casts: 74.4% of the pH variability is co-determined by the N, P, K, TOC, and Ca contents; 95.9% of the Nt variability is co-determined by the pH, P, K, TOC, and Ca contents; 95.4% of the P variability is co-determined by the pH, N, K, TOC, and Ca contents; 94.5% of the K variability is co-determined by the pH, N, P, TOC, and Ca contents; 86.6% of the TOC variability is co-determined by the pH, N, P, K, and Ca contents. This study revealed the complexity of the chemical relationships inside earthworm casts, their reciprocal dependencies, and highlighted the complexity of the earthworms’ contribution to biogeochemical cycles in urban areas. Our findings propose earthworms as indicators of the integrative conservation management of urban ecosystems. |
The importance of local faunal research of moths for plant protection: an example from an agricultural landscape in central EuropeOriginal PaperVendula Hrube¹ová, Hana ©efrová, Zdenìk La¹tùvkaPlant Protect. Sci., 2023, 59(4):348-355 | DOI: 10.17221/33/2023-PPS
|
The effects of Pycnogenol, a pine bark extract on pulmonary inflammation by Asian sand dust in miceOriginal PaperSW Pak, SJ Lee, Kim WI, YG Yang, YK Cho, JS Kim, TW Kim, JW Ko, JC Kim, SH Kim, IS ShinVet Med - Czech, 2024, 69(1):8-17 | DOI: 10.17221/77/2023-VETMED Erratum in: Vet Med-Czech. 2024 Nov 29;69(11):401. doi: 10.17221/97/2024-VETMED |
Enhanced biodiesel production from waste cooking oils catalyzed by sodium hydroxide supported on heterogeneous co-catalyst of bentonite clayOriginal PaperDarwin Darwin, Rini Ayu Marisa Harahap, Atmadian Pratama, Muhammad Thifa, Muhammad Alwi A FayedRes. Agr. Eng., 2023, 69(3):124-131 | DOI: 10.17221/70/2022-RAE
|
Palliative care for cancer patients in veterinary medicineReviewCSF Repetti, JR Rueda, CD Porto, R Prevedello Franco, RJS Girio, FFR Manhoso, IB CostaVet Med - Czech, 2023, 68(1):2-10 | DOI: 10.17221/76/2022-VETMED
|
Past, present and future of the applications of machine learning in soil science and hydrologyReviewXiangwei Wang, Yizhe Yang, Jianglong Lv, Hailong HeSoil & Water Res., 2023, 18(2):67-80 | DOI: 10.17221/94/2022-SWR Machine learning can handle an ever-increasing amount of data with the ability to learn models from the data. It has been widely used in a variety of disciplines and is gaining increasingly more attention nowadays. As it is challenging to map soil and hydrological information that are characterised with high spatial and temporal variability, applications of machine learning in soil science and hydrology (AMLSH) have become popularised. To better understand the current state of AMLSH research, a scientific and quantitative approach was performed to statistically analyse publication information from 1973 to 2021 archived in the Scopus database using scientometric analysis tools, including VOSviewer, CiteSpace, and the open-source R package “bibliometrix”. The results show a significant increase in the number of publications on AMLSH since 2006. The major contributions were identified based on country origins (China, the USA, and India), institutions (Hohai University, Islamic Azad University, and Wuhan University), and journals (Journal of Hydrology, Remote Sensing, and Geoderma). The keywords analysis of the AMLSH research demonstrates four research hotspots: neural network, artificial intelligence, machine learning, and soil. The most frequently utilised machine learning (ML) methods are neural networks, decision trees, random forests and other methods for image processing and predictive analysis. McBratney et al. 2003 is the most highly cited article. Our research sheds light on the research process on AMLSH and concludes with future research perspectives. |
Adaptation analysis of insect-resistant transgenic line after introducing mcry1F gene in maizeOriginal PaperDaming Wang, Junqi Yin, Fengci Wu, Baifeng Wang, Zhilei Jiang, Jingang Liang, Xinyuan SongPlant Soil Environ., 2023, 69(1):18-24 | DOI: 10.17221/286/2022-PSE The ability to adapt, survive, and compete with weeds of transgenic plants is the necessary evaluation content to release transgenic lines in target regions. We compared weediness and agronomic traits of transgenic maize lines G1F-8 and G1F-19 carrying the mcry1F gene with their near-isogenic maize inbred line Zheng 58 in the wasteland and cultivated field under natural conditions for two consecutive years. The results showed that there was no significant difference identified in the species, quantity, and relative coverage ratio (RCR) of weeds between fields with G1F-8, G1F-19, and Zheng 58, regardless of the sowing pattern in the wasteland. Compared with the vigour of weeds, none of G1F-8, G1F-19, and Zheng 58 showed survival advantages, and all showed weak growth potential with no final grain yield. Meanwhile, no volunteer seedlings were found upon investigation in the following year. The simulated seed overwintering experiment in the wasteland further showed that the three kinds of maize could not germinate in the second year. In cultivated land, G1F-8 and G1F-19 had the same growth stages, plant height, and RCR as Zheng 58 throughout two years. In conclusion, the transgenic lines G1F-8 and G1F-19 exhibited no adaptability risk in Gongzhuling, Jilin, China. |
Effect of Broussonetia papyrifera leaf meal on growth performance, antioxidant capacity, and gut health status of growing rabbitsOriginal PaperKunliang Han, Bang Zhang, Yan CuiCzech J. Anim. Sci., 2023, 68(2):87-97 | DOI: 10.17221/146/2022-CJAS
|
Common bean (Phaseolus vulgaris L.) seed germination improves the essential amino acid profile, flavonoid content and expansion indexShort CommunicationLuis Díaz-Batalla, Karina Aguilar-Arteaga, Javier Castro-Rosas, Reyna Nallely Falfán-Cortés, Ricardo Omar Navarro-Cortez, Carlos Alberto Gómez-AldapaCzech J. Food Sci., 2023, 41(1):73-77 | DOI: 10.17221/5/2022-CJFS Common bean (Phaseolus vulgaris L.) is one of the most important grain legume foods for the human diet. Common bean seed is gaining attention due to its content of secondary metabolites with positive effects on human health. The present work analysed the effect of common bean germination on the essential amino acid profile, active compound content, and expansion index after extrusion processing. The content of tryptophan (Trp) in raw common bean (RCB) and in germinated common bean (GCB) seeds was 6.1 and 7.9 mg·g–1 of protein, respectively. The limiting amino acids in RCB were sulphur amino acids and Trp, and in GCB only the sulphur amino acids were the limiting amino acids. The germination process in beans increases the levels of quercetin and kaempferol and allows the synthesis of daidzein and genistein, and significantly increases the expansion index after extrusion processing. The germination of common bean could be used as a strategy to improve nutritional, nutraceutical, and processing properties. |
Are they both the same shit? Winter faeces of roe and red deer show no difference in nutritional componentsOriginal PaperStipan Èupiæ, Milo¹ Je¾ek, Francisco CeaceroJ. For. Sci., 2023, 69(3):114-123 | DOI: 10.17221/19/2023-JFS
|
|
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. |
Measuring of infiltration rate in different types of soil in the Czech Republic using a rainfall simulatorOriginal PaperDavid Kabelka, David Kincl, Jan Vopravil, Jiøí Brychta, Jan BaèovskýSoil & Water Res., 2023, 18(2):128-137 | DOI: 10.17221/132/2022-SWR Knowledge of the issue of water movement in the soil is the basis for agricultural activity, but also for many other sectors. One of the basic indicators that is evaluated in soil science is the rate of water infiltration into the soil. The article specifically states how soil texture and soil moisture affect the rate of water infiltration. The results show that changes in water infiltration can be significant and certain trends can be traced. The rate of water infiltration into the soil is most affected by the sand fraction (soil particles 0.05–2 mm). The higher the percentage of these soil particles in the soil, the lower the changes in infiltration rate depending on the degree of saturation. The article further evaluates soil moisture in relation to texture. The results were obtained at several research locations within the period 2014–2021 in the territory of the Czech Republic. The above findings are primarily applicable to the region of Central Europe or can be used as comparative values for regions in the rest of the world. |
Determination of Verticillium and Fusarium wilt resistance levels of different interspecific hybrid eggplant linesOriginal PaperSevtap Doksöz Boncukçu, Naif Geboloğlu, Funda ªahinHort. Sci. (Prague), 2023, 50(2):152-158 | DOI: 10.17221/62/2022-HORTSCI This study was conducted to investigate the resistance of 4 wild eggplant species (Solanum aethiopium group Aculeatum, S. incanum, S. macrocarpon, S. linnaeanum), 3 cultivated eggplant varieties (‘Anamur F1’, ‘Pala’, ‘Yamula’), 1 eggplant rootstock (Köksal F1) and 34 interspecific hybrids to Verticillium dahliae Kleb. and Fusarium oxysporum f.sp. melongenae. Disease resistance of eggplant genotypes was determined by the pathogenicity test. The disease severity values varied between 0–80% for Verticillium and between 0–100% for Fusarium. Among the 42 genotypes, 18 genotypes were found to be moderately resistant and 1 genotype was found to be highly resistant to Verticillium. At the same time, 2 of the 42 genotypes were found to be moderately resistant and 22 of the 42 genotypes were found to be highly resistant to Fusarium. All hybrids with S. integrifollium, Solanum aethiopicum group Gilo as father were found to be highly resistant to Fusarium oxysporum f.sp. melongenae. Solanum linnaeanum did not exhibit any disease symptoms and was found to be highly resistant to both disease agents. Present interspecific hybrid eggplant genotypes with known resistance to Verticillium and Fusarium wilt are expected to have significant contributions in developing new eggplant rootstocks and hybrid eggplant cultivars in the future. |
A blockchain-based approach for food surplus managementOriginal PaperGianpaolo Iazzolino, Francesca Guerriero, Luigino Filice, Giorgio ScarpelliAgric. Econ. - Czech, 2023, 69(7):276-283 | DOI: 10.17221/146/2023-AGRICECON
|
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
|
LbCu/ZnSOD and LbMnSOD involved in drought stress tolerance induced by strigolactones of cut lilyOriginal PaperBowen Chiai, Tian Xiea, Li Liua, Junhui Yan, Zixian Zhao, Minghua Deng, Jinfen WenaHort. Sci. (Prague), 2023, 50(3):241-251 | DOI: 10.17221/17/2022-HORTSCI In this study, LbCu/ZnSOD, LbFeSOD, and LbMnSOD genes were cloned, the role of strigolactones (SLs), a novel plant hormone that is ubiquitous in plants in modulating plant responses to abiotic stress, on the three superoxide dismutases (SODs) under polyethylene glycol PEG-6000 stress were researched in the petals of cut lily flowers. The results indicated that during the development of the lily bud, the expression levels of LbMnSOD gradually increased and those of LbCu/ZnSOD decreased, while the LbFeSOD expression remained at a very low level. When the cut lily flowers were subjected to 10% PEG-6000 stress, the relative water content (RWC) declined, the malondialdehyde (MDA) content and relative electrical conductivity (REC) dramatically increased in the petals. However, when exogenous SLs were employed, the RWC were improved, while the MDA and REC were reduced. Meanwhile, the SLs significantly increased the activities of the total SOD (T-SOD), Cu/ZnSOD and MnSOD, the expression levels of LbCu/ZnSOD and LbMnSOD, especially LbCu/ZnSOD, were markedly up-regulated in the petals. In conclusion, our research indicates that SOD enzymes, especially Cu/ZnSOD and MnSOD, are involved in the drought stress tolerance; the application of strigolactones can enhance the activities of the two SODs, and may increase the expression of LbCu/ZnSOD and LbMnSOD via a positive feedback mechanism in the cut lily petals. |
Refined approach to the evaluation of heat resistance applied to Enterobacteriaceae in cheese stretchingOriginal PaperIrena Nìmeèková*, ©árka Tre¹lová, Eli¹ka Le¹kováCzech J. Food Sci., 2023, 41(5):358-366 | DOI: 10.17221/83/2023-CJFS
|
Pedo-climatic predictions and reality of sunflower (Helianthus annuus L.) growing in SlovakiaOriginal PaperJozef Vilèek, Matú¹ Maxin, Monika Lörincová, Miroslav KudlaPlant Soil Environ., 2023, 69(11):545-553 | DOI: 10.17221/323/2023-PSE This work aims to differentiate the rural land of Slovakia in view of the possibility of effective sunflower growing. The differentiation is based on pedo-climatic and production-economic parameters. Soil categorisation took into account the correlation between the site properties (soil and climatic conditions) and the biological and agrotechnical requirements of the crops. Sunflower requirements were included in yield databases using software filters such that a given site property excluded or limited sunflower growing, which was reflected in predicted production. The prediction was subsequently interpolated into four suitability categories: soils unsuitable for sunflower growing, less suitable soils, suitable soils and very suitable soils. A map of categories of soil suitability for sunflower growing was created using a Geographic Information System on the distribution of soil parameters in Slovakia. According to our calculation in Slovakia, 18.8% of farmland is very suitable for sunflower growing, 24.9% is suitable, 16.6% is less suitable, and 39.7% is unsuitable for sunflower growing. These categories are characterised and specified in detail in the paper in terms of geographical, soil, climatic, production and economic parameters. The analysis of the actual sowing of sunflowers between 2018 and 2021 showed that 51% of the areas were located in very suitable soils, 32% in suitable, 10% in less suitable soils and 7% in unsuitable soils for cultivation. |
Stand structure of a juvenile Paulownia Shan Tong plantation grown in the temperate dry climate zone in Hungary – A case studyShort CommunicationFruzsina Szabó, Károly Rédei, Tamás Ábri, Elza Kovács, Lajos JuhászJ. For. Sci., 2023, 69(12):550-556 | DOI: 10.17221/90/2023-JFS In this paper, empirical relationships between diameter at breast height (DBH), crown diameter (CD), and stem number per hectare (N) were improved in a Paulownia Shan Tong plantation. Various functions of these variables were defined, focusing on growing space (Gs) and stem number per hectare. The linear crown index between CD and DBH seems to be particularly important in predicting stem number per hectare. Based on an analysis of the relationships, a CD-DBH (R2 = 0.7254) and a DBH-N graphic model (R2 = 0.7302) can be applied widely in plantation forestry. Under suitable site conditions, the investigated Paulownia hybrid can provide a higher increment in DBH than most of poplar hybrids at a certain age. The aim of this study was to explore the relationships between the Gs based on CD and DBH. These types of investigations are of fundamental importance in terms of the growing technology of tree plantations. |
Bankability of a public private partnership in agricultural sector: A project in Sub Saharan AfricaOriginal PaperDonato Morea, Marino BalzariniAgric. Econ. - Czech, 2019, 65(5):212-222 | DOI: 10.17221/258/2018-AGRICECON A public private partnership can be an effective approach to deal the projects with modern agricultural development in Sub Saharan Africa. A former financial analysis of a development project, carried out by the authors, showed that public and private partners can effectively join in a mutually satisfactory venture capital. The same project is now complemented with a bankability study, considering lenders options, equity allocation, collaterals and likely applicable interest rates, available cash flow and sustainable debt service repayment to provide a through financing scenario for each partner's perspective assessing the relevant Debt Service and Loan Life Cover Ratios. Cash flow and interest rates fluctuation impacts are eventually investigated with a sensitivity analysis to prove the robustness of the proposed scenario. |
Sustainably produced butter: The effect of product knowledge, interest in sustainability, and consumer characteristics on purchase frequencyOriginal PaperDominika Jakubowska, Tomá¹ SadílekAgric. Econ. - Czech, 2023, 69(1):25-34 | DOI: 10.17221/294/2022-AGRICECON
|
