BIO Web of Conferences

https://www.bio-conferences.org/

List of Papers (Total 473)

Seasonal rhythm of development of Allium trautvetterianum in the Kulyab Botanical Garden

The article deals with the seasonal rhythm of development of the bulbaceous acrosympodially accreting polycarpic Allium trautvetterianum Regel (the subgenus Melanocrommyum) when growing in the Kulyab Botanical Garden of the Khatlon Scientific Center, Academy of Sciences of Tajikistan in 2010-2015. Duration of vegetation and phenological phases is described. The species is...

Spatial structure of the Kodar-Kalar orobiome botanical diversity on bioclimatic basis

Bioclimatic substantiation of the vegetation spatial structure of the Kodar-Kalar orobiome on the basis of altitudinal vegetation divisions using the global climate model (BioClim) was carried out. Statistical analysis showed differences between altitudinal belts, sub-belts and also larch forests types on average annual temperature and average annual precipitation. The...

Spectroscopic studies of the quality of WCO (Waste Cooking Oil) fatty acid methyl esters

Different kinds of biodiesel fuels become more and more attractive form of fuel due to their unique characteristics such as: biodegradability, replenishability, and what is more a very low level of toxicity in terms of using them as a fuel. The test on the quality of diesel fuel is becoming a very important issue mainly due to the fact that its high quality may play an important...

Efficiency of solar radiation conversion in photovoltaic panels

This paper included analysis the conversion efficiency in photovoltaic panels. The tests were done between February and June at a test stand equipped with three commonly used types of photovoltaic panels: poly- and monocrystalline silicon and with semi-conductive layer made of copper (Cu), indium (In), gallium (Ga) and selenium (Se) (CIGS). Five days of each month were selected...

Study of chromosome composition of the southern Ural genotypes of Prunus pumila L. by various methods

Prunus pumila L. is a winter-hardy Siberian species widely used in kitchen-gardens, as well as in nurseries as a seed stock for plums and apricots and development of hybrids for stocks of these cultures. Rare cases of emergence of polyploids among introduced seedlings are known. Chromosome numbers of 11 morphologically different plants of this species from Chelyabinsk Oblast were...

Effect of methyl jasmonate on production of 20-hydroxyecdysone and turkesterone in hairy roots of Silene linicola C.C.Gmelin

Methyl jasmonate (MeJ) affects the regulation of secondary metabolism, and it is considered to be a promising elicitor in the culture of cells, tissues and plant organs. High-performance liquid chromatography method was used to identify the composition of ecdysteroids in hairy roots of Silene linicola. MeJ was found to have a stimulating effect on ecdysteroid biosynthesis in this...

New locations of rare lichen species in the Krasnoyarsk region

As a result of lichenological studies of the Salbinka River valley, new locations of lichen species listed in the Red Data Books of the Russian Federation and the Krasnoyarsk Territory have been identified. New habitats of Usnea longissima Ach., Lobaria isidiophora Yoshim., Lobaria scrobiculata (Scop.) P. Gaertn. and Lobaria pulmonaria (L.) Hoffm. have been revealed. Their brief...

Construction design of apple sorter

When assessing the quality of fruit and packaging process, fruit-producing farms owners decide to evaluate fruit by people or automated sorting lines. The purchase of an automated sorting line generates high costs for the company, but it brings benefits in the form of increased work efficiency, and the better organization of fruit packaging and storage processes. The use of that...

Spectroscopic studies of the quality of WCO (Waste Cooking Oil) fatty acid methyl esters

Different kinds of biodiesel fuels become more and more attractive form of fuel due to their unique characteristics such as: biodegradability, replenishability, and what is more a very low level of toxicity in terms of using them as a fuel. The test on the quality of diesel fuel is becoming a very important issue mainly due to the fact that its high quality may play an important...

Biostimulants and the antiradical activity of soybean seeds

In recent years, the interest in the application of biostimulants has increased, which positively affect the growth and development of plants and contribute to an increase in the yield and quality of crops. In Poland, the area of soybean cultivation is constantly increasing and thus the improvement of the quality of its seeds seems to be purposeful. In the available literature...

Effect of prolonged cultivation on the micropropagation in vitro of mint cultivars and breeding samples

The influence of the genotype and the number of subcultures on the development of meristem cultures of five mint cultivars and breeding samples – Krasnodarskaya 2, Diana, K37, No. 2.8.14, A2 (Mentha spp.) was studied. At the second stage of micropropagation, the analysis of morphometric parameters of explants during six subcultures of four genotypes showed an increase in the...

Assessment of genetic fidelity of Fritillaria dagana (Liliaceae) regenerated plants using ISSR markers

ISSR analysis of Fritillaria dagana, endangered ornamental geophyte from the Sayan Mountains, regenerated through direct gemmogenesis from bulb scale tissue was performed. More informative electrophoresis profile with clear and distinct bands was obtained at amplification with (CAC)3GC primer at 56 °C annealing. The genetic fidelity of F.dagana regenerants to maternal plants was...

Influence of extruder screws speed and process temperature on the extrudate shape changes of the maize-spelt blends

The objective of the study was examination of changes in the shape factors of extruded products, which occur as a result of different settings of the extrusion process variables. Samples analysed included products created by means of the extrusion process from a mixture of spelt flour and cornmeal, with the share of spelt at 70 to 100%. The samples were made with the use of a co...

Influence of the composition and agglomeration pressure on the compaction level of the fertilizers based on biomass ash and digestate

The paper presents the results of research aimed at determining the influence of the composition of the fertilizer mixtures and the compaction pressure on the specific density and density index of fertilizer granules. Investigated mixtures were prepared from fly ash from power plant fuelled by biomass and digestate from biogas plant. The urea, sulfur and phosphorite were also...

Analysis of the distribution of the raw material base for biogas production in communes of the małopolskie voivodship

The purpose of the work was to determine the electricity production potential of the available fermentation masses of selected organic fractions in the Małopolskie voivodship, as aggregated at the commune level. The determined potential of biomass production for energy purposes was presented in the form of a spatial distribution, based on data obtained from the queries of the...

Modelling assessment of farmers workload

The article presents the principles of modeling the physical load assessment of farmers using Bayesian Network technology. Despite rapid development of mechanization and automation of work processes in agriculture, many farmers use their own physical strength, such as manual handling of loads. There are periods in which a farmer performs several or even a dozen of variety...

Selected properties of the potato snacks expanded in the microwave radiation

The results of measurements of the selected properties of the extruded potato pellets and snacks expanded in the microwave field are presented in the paper. The potato pellets with the addition of the baking soda were prepared with a single screw extruder TS-45. The snacks were obtained by pellets expansion in a conventional microwave oven. The expansion index and the hardness of...

The design of a prototype system which controls the flow of milk in the collector’s column of an autonomous milking apparatus

The research paper presents a prototype system controlling the flow of milk in the collection column of an autonomous milking apparatus. In the Matlab®-Simulink program, the simulation model of such a system was created. Its essential operation is illustrated in the block diagrams. The logic verification of the model’s operational accuracy (off-line simulation) did not reveal...

Effect of hydrothermal treated corn flour addition on the quality of corn-field bean gluten-free pasta

Corn semolina supplemented by field bean semolina in ratio of 2/1 (w/w) were used for obtaining protein and fiber enriched gluten-free pasta. The effect of hydrothermal treatment of corn flour on its applicability as gluten-free pasta improver was tested. A central composite design involving water hydration level and the amount of hydrothermal treated corn flour were used...

The influence of mixing inside the fermentation reactors during the study of biogas efficiency of the substrates in mesophilic technology

Along with the development of environmental friendly technologies, an increasing interest in generating the electricity and heat from renewable sources has been observed in Poland. Perfect example of such installations are agricultural biogas plants, where methane fermentation produces high-energy gas fuel i.e. biogas. Before investing, it is necessary to perform a detailed...

Influence of the Harvesting and Ensilage Technology on the Quality of Maize Straw Silage

The aim of the study was to assess how the harvesting and ensilage technology influenced the quality of maize straw silages. The research findings showed that it was best to make maize straw silage in a flexible silo, whereas it was least favourable to make it in a film-covered field prism. The choice of the adequate ensilage method results in a high quality silage even if there...

Modelling assessment of farmers workload

The article presents the principles of modeling the physical load assessment of farmers using Bayesian Network technology. Despite rapid development of mechanization and automation of work processes in agriculture, many farmers use their own physical strength, such as manual handling of loads. There are periods in which a farmer performs several or even a dozen of variety...

Spectroscopic studies of the quality of WCO (Waste Cooking Oil) fatty acid methyl esters

Different kinds of biodiesel fuels become more and more attractive form of fuel due to their unique characteristics such as: biodegradability, replenishability, and what is more a very low level of toxicity in terms of using them as a fuel. The test on the quality of diesel fuel is becoming a very important issue mainly due to the fact that its high quality may play an important...

Organizational and technological compatibility of the technological processes of second and third line maintenance of KhTZ-3522 tractors

The work is devoted to systematic substantiation of productivity, production structure and specialization of service stations of KhTZ-3522 tractors. Based on the technical and economic comparative analysis of the results of the technological processes modeling of the second and third line maintenance of KhTZ-3522 tractors, the parametrical series of production structures of...

Application of FTIR spectroscopy for analysis of the quality of honey

Every kind of honey is a very precious natural product which is made by Mellifera bees species. The chemical composition of honey depends on its origin or mode of production. Honey consists essentially of different sugars, predominantly fructose and glucose. There are also non – sugar ingredients like proteins and amino acids, as well as some kind of enzymes, such as: invertase...