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Tytuł:
Early performance of four sweet cherry cultivars grafted on Gisela 5 and Colt rootstocks in a high density growing system
Autorzy:
Milić, B.
Kalajdžić, J.
Keserović, Z.
Magazin, N.
Ognjanov, V.
Miodragović, M.
Popara, G.
Powiązania:
https://bibliotekanauki.pl/articles/12617664.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
fruit
sweet cherry
Gisela 5 cultivar
Colt rootstock
growing system
high density
plant performance
Opis:
Growing the sweet cherry on different vigor rootstocks, such as Colt and Gisela 5, in a high-density orchard, causes differences in growth and productivity and later imposes the need to change the growing system including pruning, flower and fruit thinning, irrigation and fertilization. In the present research, four sweet cherry cultivars (Summit, Kordia, Lapins and Regina) grafted on Colt and Gisela 5 rootstocks were assessed for morphological traits and productivity. The parameters investigated were: vegetative growth, bearing potential, fruit set, precocity, productivity, fruit growth habit and quality attributes. Compared to Colt, the trees on Gisela 5 had smaller TCSA and the length of two-year-old branches, in the fifth season after planting. Trees on Gisela 5 had a higher number of flower buds per may bouquet compared to Colt, which confirms that bearing potential is highly affected by the rootstock. Growing the sweet cherries on Gisela 5 induced a higher fruit setting in all cultivars except in Kordia. Fruit physical attributes were affected by the cultivar, growing system and experimental year. For all tested cultivars, the yield per tree was significantly lower on Colt compared to Gisela 5. Gisela 5 performed better than Colt, which suggests that Gisela 5 should be used as a rootstock in high density sweet cherry production systems.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 1; 99-108
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Between-population variation in plant performance traits and elemental composition of Colchicum autumnale L. and its relation to edaphic environments
Autorzy:
Mroz, L
Powiązania:
https://bibliotekanauki.pl/articles/57397.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
population variation
plant performance
vegetative performance
reproductive performance
elemental composition
mineral composition
parent material
soil property
redundancy analysis
Colchicum autumnale
edaphic environment
Opis:
Variation in vegetative and reproductive performance and leaf mineral composition among 25 populations of Colchicum autumnale (meadow saffron) from soils derived from six parent materials (limestone, marl, sandstone, greenstone, melaphyre and serpentine) in southwestern Poland has been investigated. The plant size (PS), total le-af area (TLA), leaf shape (LS), number of fruits per plant (NFP), number of seeds per plant (NFP), total weight seed per plant (TWSP) were estimated, and concentrations of seventeen elements (N, P, K, Ca, Mg, Na, S, Fe, Mn, Cu, Zn, Pb, Cd, Ni, Co, Cr, Mo) were analyzed in leaf and soil samples. In soil samples, also soil pH, organic matter content and sand, silt and clay content were determined. All soils (except melaphyre soil) contained elevated levels of Cr. Concentrations of soil Ni and Zn, Pb, Cd in serpentinite soil and polluted marl soils (respectively) were significantly higher than those of other examined soils. Meadow saffron leaves from all sites (except marl sites) contained elevated levels of Cr, Co and Ni. Statistical analysis, carried out with principal component analysis (PCA) revealed that a good correlation exists between the element content in leaves and plant performance traits and soil environment. The leaf Ca content and NFP were correlated and were much higher in populations from metal (except Cr) and nutrient-poor marl soils than in those from metal (except Ni in serpentine soil)and nutrient moderate rich soils derived from melaphyre, greenstones, serpentinite, limestones and sandstones and in those from metal-rich and nutrient-poor polluted marl soils. Meadow saffron plants tended to take up higher amounts of N, P, K, Mn, Cu and Na and lower amounts of S and had much higher TLA in populations from sandstone soils than those in populations from serpentinite, melaphyre, greenstone, marl and limestone soils. The leaf Co, Ni, Cr, Mg concentrations were correlated and were much higher in populations from serpentinite, melaphyre, greenstone, polluted marl and limestone soils than those from marl and sandstone soils. The pattern of variation in NFP and TLA across the different soil types was the opposite of that for leaf N, Cu, Na, Ni, Mg and S concentrations. Redundancy analysis (RDA) enables identification of the soil variables that best explain the variance pattern of plant response. The variation explained by the soil variables (15 soil elements and soil pH) was high (79%). The forward selection of soil variables identified soil Co, Mo, Ni, Ca and Zn concentrations as significantly influencing the ordination plant traits. The variation explained by these selected variables was 55%. Thus the five soil variables appeared to be the main factors determining the pattern variation of vegetative, reproductive and nutrient traits of Colchicum autumnale.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 229-239
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ przedsiewnej stymulacji laserowej nasion i dokarmiania mikroelementami (B, Mo) na plonowanie nasiennej, tetraploidalnej koniczyny czerwonej w czteroletnim użytkowaniu
Influence of pre-sowing laser stimulation and microelement nutrition (B, Mo) on yielding of seed of tetraploid red clover during four-year performance
Autorzy:
Wilczek, M.
Cwintal, M.
Powiązania:
https://bibliotekanauki.pl/articles/36331.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
uprawa roslin
koniczyna czerwona
koniczyna czerwona Terenia
odmiany roslin
nasiona
stymulacja przedsiewna
stymulacja laserowa
nawozenie borem
nawozenie molibdenem
mikroelementy
plonowanie
uzytkowanie czteroletnie
wydajnosc roslin
plant cultivation
red clover
Terenia cultivar
plant cultivar
seed
pre-sowing stimulation
laser stimulation
boron fertilization
microelement
yielding
plant use
plant performance
Opis:
W latach 2006-2009 przeprowadzono badania z tetraploidalną koniczyną czerwoną, odmiany ‘Terenia’, uprawianą na nasiona. W eksperymencie uwzględniono dwa czynniki: 1. przedsiewną stymulację nasion laserem He-Ne, o gęstości powierzchniowej mocy 4 i 8 mW·cm-2, stosowaną 1- i 3- krotnie. 2. dokarmianie roślin w fazie pąkowania z drugiego pokosu borem i molibdenem (0; 0,15 B + 0,01 Mo; 0,30 B + 0,02 Mo; 0,45 B + 0,03 Mo kg·ha-1). Koniczynę uprawiano w cyklu 4-letnim. Największy wpływ na plony nasion miały warunki meteorologiczne, kiedy to okres wegetacji wynosił 104 dni, średnia temperatura powietrza 18,4oC, a suma opadów 233,6mm. Plony nasion tetraploidalnej koniczyny czerwonej wahały się od 485 (2008 r.) do 692 kg·ha-1 (2007). Już najniższa dawka mikroelementów (B – 0,15 i Mo – 0,01 kg·ha-1) istotnie zwiększała liczbę nasion w główce i procent ich osadzenia oraz plony zebrane i potencjalne. Wyższe dawki boru i molibdenu, w porównaniu z najniższą, nie spowodowały uzasadnionych statystycznie różnic w plonach nasion i wymienionych elementach ich struktury. Przedsiewna stymulacja nasion światłem lasera istotnie zwiększała tylko liczbę roślin na 1 m2 po wschodach oraz plony zielonej i suchej masy ściernianki. W sprzyjających warunkach pogodowych możliwa jest uprawa tetraploidalnej koniczyny czerwonej na nasiona w czteroletnim cyklu (I rok: wsiewka w jęczmień jary – zbiór ziarna jęczmienia i ściernianki; II, III, IV rok: zbiór pierwszego pokosu na paszę, a drugiego na nasiona).
Experiments involving tetraploid red clover cv. 'Terenia' grown for seeds were carried out in 2006-2009. Two factors were included: 1. pre-sowing seed stimulation using He – Ne laser at power surface densities 4 and 8 mW cm-2, applied once and 3 times; 2. nutrition of second-cut plants at the budding stage with boron and molybdenum (0; 0.15 B + 0.01 Mo; 0.30 B + 0.02 Mo; 0.45 B + 0.03 Mo kg ha-1). The clover was grown in a 4-year cycle. Meteorological conditions, when the vegetation period lasted up to 104 days, air temperature amounted to 18.4oC and precipitation sum was 233.6 mm, exerted the largest influence on seed yields. The seed yields of tetraploid red clover oscillated from 485 (2008) to 692 kg ha-1 (2007). The lowest microelements rate (B – 0.15 and Mo – 0.01 kg ha-1) significantly increased the seed number per head along with their percentage, as well as harvested and potential yields. Higher boron and molybdenum doses did not cause statistically significant differences in seed yields and in the abovementioned yield structure elements. Presowing seed stimulation using laser radiation significantly increased only the number of plants per 1 m2 after the emergence as well as yields of green and dry matter of stubble crop. Under favourable weather conditions, there is a possibility to cultivate the tetraploid red clover for seeds in a 4-year cycle (I year: as inter-crop into spring barley – harvest of barley grains and stubble crop; II, III, and IV years: harvest of the first cut for fodder, while the second cut for seeds).
Źródło:
Acta Agrophysica; 2011, 17, 1[188]
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future Performance Study of Al-Muamirah Wastewater Treatment Plant Applying a Statistical Analysis
Autorzy:
Nasir, Mohsin J.
Noori, Nazik A.
Kariem, Nagam O.
Powiązania:
https://bibliotekanauki.pl/articles/2027893.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
future performance
statistical analysis
wastewater treatment plant
Opis:
Wastewater management is considered to be a great challenge, particularly in towns and cities with rapidly growing population. The study aimed to assess the Al-Muamirah WW treatment plant (WWTP), located in the Babylon governorate of Iraq, in terms of its hydraulic loading as a quality performance indicator. The findings showed that there will be a significant deficit in the capacity of the plant of 20%, 32% and 37% in the year of 2024, and will cumulatively arise in 2030 to become 26%, 41.5% and 47.7% for suggested growth rates of 1.27%, 2.5% and 3.95%, respectively. The outcomes of expected amounts of daily discarded wastewater in terms of estimated population were analyzed using the ANOVA test and it was found that the population growth ratio has a significant impact on the generated inflow, as f (2,30) = 3.713, and p= 0.019 < 0.05.
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 264-268
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agronomic performance and heterosis of strawberry inbred hybrids obtained by top-cross mating system
Autorzy:
Kaczmarska, E.
Gawroński, J.
Powiązania:
https://bibliotekanauki.pl/articles/12619194.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
strawberry
heterosis
plant hybrid
inbreeding
top-cross
mating system
agronomic performance
Opis:
The aim of this study was to develop an inbred lines from octoploid strawberry and to determine their breeding value by estimating the effects of general combining ability (GCA) and mid-parent heterosis. All inbred lines were obtained through selfing using five cultivars. The number of inflorescences, number of flowers per inflorescence, fruit yield, fruit number per plant, average fruit weight, number and weight of leaves as well as number of runners per plant were recorded from 2014 to 2015. The highest breeding value was estimated for maternal forms of ‘Senga Sengana’ 17 for six important traits. The lowest GCA effects were exhibited by inbred lines derived from clone 1387 18. Degree of heterosis for a given trait differed greatly among hybrids. The highest heterosis in terms of a number of inflorescences, fruit yield, number of fruits per plant and leaf weight occurred in the Kent 7-14 × ‘Dukat’ progeny. The results obtained could be used to evaluate the agronomic performance and to make more efficient choices of parents in current strawberry breeding programs
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 1; 85-97
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the Solar Power Plant Efficiency Degradation Resulting from Heating
Autorzy:
Lavrik, A.
Yakovleva, E.
Lеskov, A.
Powiązania:
https://bibliotekanauki.pl/articles/124651.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
photoelectric module
PEM
solar power plant
performance coefficient
heating
cooling
Opis:
Renewable power sources (RPS) play an ever growing role in power production. With the green power cost decreasing, the RPS share (including hydro power plants) in power production grows fast. Using RPS in supplying power to various facilities reduces the CO2 emission into atmosphere, thus reducing the greenhouse effect and being a fundamental factor in fighting the global warming. Every type of RPS possesses certain drawbacks that need to be eliminated. RPS units do have disadvantages, too, including low efficiency coefficient, and low specific power. However, there is the need for specific technological conditions. The present work describes the issue of photoelectric module heating. Photoelectric module heating results in both lower output voltage and module aging acceleration. The present work offers the method for assessing the practicability of development and implementation of solar power cell module active cooling systems, based on the photoelectric module daily performance schedules, drawing on statistic meteorological data collected over many years, and also it presents the brief description of various methods for cooling photoelectric modules.
Źródło:
Journal of Ecological Engineering; 2018, 19, 3; 115-119
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of the solar power plant performance in temperate climate
Autorzy:
Zdyb, A.
Dragan, P.
Jaremek, A.
Powiązania:
https://bibliotekanauki.pl/articles/105126.pdf
Data publikacji:
2018
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
photovoltaics
grid connected solar plant
photovoltaic performance
inclination angle
tilt angle
Opis:
Due to gradual depletion of fossil fuels resources and emission of harmful chemicals accompanying the combustion process, the interest in alternative energy sources still increases. Among many kinds of alternative sources, solar radiation is very special because of its wide availability and large technical potential. Photovoltaic systems providing the electric energy are used in many countries. The most important part of photovoltaic system is a module, which parameters (e.g. efficiency, rated power, temperature coefficients of power and efficiency, short circuit current, open circuit voltage) are determined in laboratory tests under Standard Test Conditions (STC: 25°C, 1,000 W/m2 , air mass 1.5). However, in real outdoor conditions the modules exhibit lower efficiency since local climate influences their performance and different external factors generate energy losses in the whole system. The aim of this work is the performance analysis of a solar power plant connected to the grid, which total rated power is 2.985 MW and it works in temperate climate in eastern Poland. Insolation in the location was estimated according to Solargis data and the role of the modules tilt angle, of which the value is non-typical for the considered location was studied. The tilt angle smaller than optimal angle allows increasing the amount of the solar radiation collected in the summer period. The electric energy production based on the inverters data in 2016 and 2017 as well as yearly yield are presented. The results are compared to data coming from other solar power plants, also located at high latitude.
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2018, 65, 1; 73-79
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected aspects of the choice of live steam pressure in PWR nuclear power plant
Autorzy:
Laskowski, Rafał
Smyk, Adam
Jurkowski, Romuald
Ancé, Julien
Wołowicz, Marcin
Uzunow, Nikołaj
Powiązania:
https://bibliotekanauki.pl/articles/2134928.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
live steam
pressure
efficiency
power output
nuclear power plant
nuclear
power
plant
performance
entropy balance
Opis:
In commercially available generation III and III+ PWR (pressurized water reactor) reactors, pressure of steam produced in steam generators varies in a relatively wide range from 5.7 to 7.8 MPa. Therefore, it is important to ask which value of steam pressure should be used for a specific unit, taking into account different location conditions, the size of the power system and conditions of operation with other sources of electricity generation. The paper analyzes the effect of steam pressure at the outlet of a steam generator on the performance of a PWR nuclear power plant by presenting changes in gross and net power and efficiency of the unit for steam pressures in the range of 6.8 to 7.8 MPa. In order to determine losses in the thermal system of the PWR power plant, in particular those caused by flow resistance and live steam throttling between the steam generator and the turbine inlet, results concerning entropy generation in the thermal system of the power plant have been presented. A model of a nuclear power plant was developed using the Ebsilon software and validated based on data concerning the Olkiluoto Unit 3 EPR (evolutionary power reactor) power plant. The calculations in the model were done for design conditions and for a constant thermal power of the steam generator. Under nominal conditions of the Olkiluoto Unit 3 EPR power unit, steam pressure is about 7.8 MPa and the steam dryness fraction is 0.997. The analysis indicates that in the assumed range of live steam pressure the gross power output and efficiency increase by 32 MW and 0.735 percentage point, respectively, and the net power output and efficiency increase by 27.8 MW and 0.638 percentage point, respectively. In the case of all types of commercially available PWR reactors, water pressure in the primary circuit is in the range of 15.5−16.0 MPa. For such pressure, reducing the live steam pressure leads to a reduction in the efficiency of the unit. Although a higher steam pressure increases the efficiency of the system, it is necessary to take into account the limitations resulting from technical and economic criteria as well as operating conditions of the primary circuit, including the necessary DNBR (departure from nucleate boiling ratio) margin. For the above reasons, increasing the live steam pressure above 7.8 MPa (the value used in EPR units that have already been completed) is unjustified, as it is associated with higher costs of the steam generator and the high-pressure part of the turbine.
Źródło:
Archives of Thermodynamics; 2022, 43, 3; 85--109
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of carbendazim residues in fruits vegetables and cereals by HPLC with column switching
Autorzy:
Michel, M
Buszewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/66285.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
carbendazim residue
determination
plant protection
food analysis
cereal
vegetable
high performance liquid chromatography
fruit
Opis:
Method for determination of carbendazim residues in fruits, vegetables and cereals was described. The compound was extracted with methanol-hydrochloric acid mixture, and after liquid-liquid partition step with dichloromethane, was determined by high performance liquid chromatography (HPLC) with column switching and ultraviolet (UV) detection. The average recoveries of carbendazim from fortified sample were from 68.7% ± 4.3% to 92.6% ± 4.5%, the coefficients of variation were from 2.9% to 6.3%, and the limits of quantification at λ = 279 nm were from 0.02 mg/kg to 0.2 mg/kg.
Przedstawiono procedurę analityczną oznaczania pozostałości karbendazymu w materiale roślinnym techniką wysokosprawnej chromatografii cieczowej HPLC z wykorzystaniem przełączania kolumn. Procedura ta opracowana została w celu wykorzystania w badaniach monitoringowych płodów rolnych i ogrodniczych traktowanych preparatami zawierającymi substancje czynne z grupy fungicydów benzimidazolowych: benomyl, karbendazym, tiofanat metylu. Średni odzysk karbendazymu z próbek fortyfikowanych mieścił się w granicach od 68,7% ± 4,3% do 92,6% ± 4,5%, współczynnik zmienności wynosił od 2,9% do 6,3%, a granica oznaczalności przy długości fali λ = 279 nm była od 0,02 mg/kg do 0,2 mg/kg.
Źródło:
Journal of Plant Protection Research; 2002, 42, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An influence of fouling gathered on the heat transfer surfaces on the heat performance characteristics of the ship steam systems heat exchangers
Autorzy:
Hajduk, T.
Powiązania:
https://bibliotekanauki.pl/articles/1841551.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
marine power plant
gathering of fouling
heat transfer surface
heat performance characteristics
thermal resistance
heat trransfer
heat exchangers
Opis:
More than half of the incidents reported to EMSA relate to nautical events such as collision, groundings and contacts. Knowledge of accurate and high-integrity positioning is therefore not only a need for future automated shipping but a base for today’s safe navigation. Examples on accidents include Ever Given in the Suez Canal and HNoMS Helge Ingstad in Norway. A Network-RTK (NRTK) service can be used as an augmentation technique to improve performance of shipborne GNSS receivers for future positioning of manned and unmanned vessels in restricted areas, such as port areas, fairways, and inland water ways. NRTK service providers generate RTK corrections based on the observations of networks of GNSS reference stations which enables the users to determine their position with centimeter accuracy in real-time using a shipborne GNSS receiver. Selection of appropriate communication channels for dissemination of NRTK corrections data is the key to a secure positioning (localization) service. In PrePare-Ships project, the modern maritime communication system VDES (VHF Data Exchange System) is proposed to distribute SWEPOS (NRTK in Sweden) correction data to shipborne positioning modules. VDES is a very reliable technique and it is compatible with most onboard functionalities. In order to minimize the impact on the overall VDES data capacity in a local area, NRTK correction data shall only occupy a single VDES slot with a net capacity of 650 bytes. Update rates may vary but are preferably at 1Hz. However, NRTK correction data size changes instantly, depending on the number of visible GNSS satellites, and the data rate can therefore sometimes reach in excess of 1000 byte/s. In this study, a smart technique is proposed to reduce size of NRTK correction data to instantly adapt with the VDES requirements by choosing a combination of specific signals, satellites or even constellations such that the data rate is not more than 650 byte/s, and at the same time it achieves optimal positioning performance with the accuracy required by the PrePare-Ships project application.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 1; 183-189
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study on tissue culture induced variation identified with metAFLP and RP – HPLC in barley and triticale regenerants
Autorzy:
Machczynska, J.
Orlowska, R.
Ogorek, K.A.
Bednarek, P.T.
Powiązania:
https://bibliotekanauki.pl/articles/951298.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
tissue culture
in vitro culture
plant regeneration
genetic change
DNA methylation
histone modification
high performance liquid chromatography
barley
triticale
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Walory przyrodniczo-użytkowe łąk doliny Środkowej Mogilnicy
Natural and uselfulnes values of meadows of the middle section of the Mogilnica River valley
Autorzy:
Kryszak, A.
Kryszak, J.
Klarzynska, A.
Powiązania:
https://bibliotekanauki.pl/articles/46842.pdf
Data publikacji:
2007
Wydawca:
Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Tematy:
dolina Srodkowej Mogilnicy
laki
roslinnosc lakowa
roznorodnosc gatunkowa
synantropizacja roslin
walory przyrodnicze
walory uzytkowe
zbiorowiska lakowe
zbiorowiska roslinne
zespoly roslinne
Mogilnica valley
meadow
meadow community
meadow plant
natural value
performance value
plant community
plant synanthropization
species diversity
Opis:
W dolinie Środkowej Mogilnicy oceniano walory przyrodnicze zbiorowisk łąkowych na podstawie liczby gatunków, wskaźnika różnorodności florystycznej Shannona-Wienera (H’) i metody waloryzacji Oświta oraz ich wartość gospodarczą i użytkową (LWU). Określono ponadto warunki siedliskowe wyróżnionych zbiorowisk: uwilgotnienie (F), odczyn gleby (R) oraz jej zasobność w azot (N), z zastosowaniem liczb wskaźnikowych Ellenberga. Walory przyrodnicze i użytkowe wyróżnionych zbiorowisk zależą od usytuowania w dolinie. Zbiorowiska położone najbliżej rzeki, zaklasyfikowane do klasy Phragmitetea, wykształcone są w formie typowej i przedstawiają duże oraz umiarkowanie duże walory przyrodnicze (od V do VII klasy waloryzacji), jednakże ich ruń ma najczęściej niską wartość użytkową (LWU od 1,63 do 6,90). Aktualnie użytkowane zbiorowiska klasy Molinio-Arrhenatheretea przedstawiają umiarkowane walory przyrodnicze (III i IV klasa waloryzacji). Z łąk tych uzyskuje się wysokie plony I pokosu (4,4 do 5,7 t s.m.· ha-1) o dobrej wartości użytkowej (LWU od 7,37 do 7,56).
Natural importance and economical and usefulness values (FVS) of meadows situated in the valley of the central Mogilnica River were assessed. The natural value was determined on the basis of: the number of species in a phytosociological relevés, phytosociological structure, floristic diversity expressed by the Shannon-Wiener index (H’) and the method of plant community valorization according to Oświt. Site conditions: moisture (F), soil reaction (R), soil nitrogen content (N) of the examined meadow communities were evaluated using the Ellenberg phyto-indication. Both natural and usefulness values of the examined communities depend on the place of occurrence in the valley. The communities situated closest to the river, which were assigned to the class of Phragmitetea, developed in their typical forms and presented significant and moderately significant natural values, although their sward was found to be characterized by low usefulness value. Communities growing further from the river, representing the Molinio-Arrhena-theretea class, are utilized at the present time. Grasses found in these communities are of moderate natural importance but the meadows provide high yields of good fodder value.
Źródło:
Acta Scientiarum Polonorum. Agricultura; 2007, 06, 4
1644-0625
Pojawia się w:
Acta Scientiarum Polonorum. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anethum graveolens L. in vitro cultures - a potential source of bioactive metabolites, phenolic acids and furanocoumarins
Autorzy:
Szopa, A.
Ekiert, H.
Powiązania:
https://bibliotekanauki.pl/articles/19449.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Anethum graveolens
in vitro culture
potential source
bioactive metabolite
phenolic acid
furanocoumarin
Apiaceae
plant growth regulator
secondary metabolite
high performance liquid chromatography
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2015, 57, 2
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and Performance Evaluation of a Pulverizer for Plantain Flour Process Plant
Autorzy:
Olutomilola, Emmanuel Olatunji
Ayodeji, Sesan Peter
Adeyeri, Michael Kanisuru
Fagbemi, Tayo Nathaniel
Powiązania:
https://bibliotekanauki.pl/articles/23965544.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
cukrzyca COVID 19
rozwój pulweryzatora
ocena wydajności
zakład przetwarzania mąki
diabetes COVID-19
pulverizer development
performance evaluation
plantain
flour process plant
Opis:
Diabetes, adjudged a risk factor for coronavirus infectious disease 2019 (COVID-19), can be managed through consumption of plantain and its associated products. Plantain is usually processed into flour and other storable/value-added products due to its very short shelf-life. To process unripe plantain pulps into flour, there is a need for size reduction after drying. This paper presents the development and performance evaluation of a size reduction unit for pulverizing, sieving and conveying material to the next processing stage in a plantain flour process plant. Its model was developed using solidworks application software. After design analysis, the model was simulated to establish its suitability/adequacy for fabrication. The pulverizer was fabricated using locally available materials. Its performance evaluation gave 400kg/h throughput, 96% crushing efficiency and 96% efficiency based on the required particle size. The average particle size of flour obtained was 236μm using 500μm screen. Effect of cyclone control-valve on the pulverizer’s overall efficiency was also investigated by allowing it to operate when the valve was completely closed, partially closed and fully opened. It was observed that the control-valve’s positions significantly influenced the machine’s performance/efficiency. It can thus be inferred that the position of cyclone control-valve has significant effect on a pulverizer’s efficiency/performance. Hence, leaving control-valve fully opened during operation would help a pulverizer perform with optimum efficiency, as the pulverizer was able to convey material, efficiently in that position, to the next processing stage during performance evaluation.
Źródło:
Production Engineering Archives; 2021, 27, 3; 223--231
2353-5156
2353-7779
Pojawia się w:
Production Engineering Archives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of chlorogenic and gallic acids by UPLC-MS/MS
Oznanczanie zawartości kwasu chlorogenowego i galusowego za pomocą UPLC-MS/MS
Autorzy:
Gryszczynska, A.
Opala, B.
Lowicki, Z.
Krajewska-Patan, A.
Buchwald, W.
Czerny, B.
Mielcarek, S.
Boron, D.
Bogacz, A.
Mrozikiewicz, P.M.
Powiązania:
https://bibliotekanauki.pl/articles/72301.pdf
Data publikacji:
2013
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
determination
chlorogenic acid
gallic acid
Rhodiola kirilowii
Rhodiola rosea
polyphenolic acid
plant extract
ultra performance liquid chromatography-tandem mass spectrometric method
analytical method
Opis:
The aim of our study were qualitative and quantitative analyses of two polyphenolic acids: chlorogenic and gallic acids. These compounds were determined in two species of Rhodiola: R. kirilowii and R. rosea. After collecting plants, aqueous and hydroalcoholic extracts were prepared. In order to identify analysed polyphenolic compounds ultra performance liquid chromatography - tandem mass spectrometry (UPLC-MS/MS, Waters) was used. Gallic acid is commonly found in the roots of these plants. Aqueous extract in both species is a rich source of gallic acid. The UPLC-MS/MS studies allow to use this analytical method for determination of polyphenolic acids accordance with the requirements of ICH. Chromatographic method developed by our team is more precise then previously published.
W Instytucie Włókien Naturalnych i Roślin Zielarskich podjęto badania mające na celu opracowanie metody detekcji kwasu chlorogenowego oraz galusowego za pomocą ultrasprawnej chromatografii cieczowej sprzężonej z tandemowym spektrometrem mas (UPLCMS/ MS, Waters). Badaniom poddano dwa gatunki różnica: Rhodiola kirilowii oraz R. rosea. Rośliny zostały wyhodowane w uprawie gruntowej w Instytucie. Przeprowadzona walidacja metody pozwoliła na jej wykorzystanie w ocenie zawartości kwasu chlorogenowego oraz galusowego w badanych roślinach, ponieważ zawartość analizowanych związków zależna jest zarówno od gatunku jak i warunków uprawy.
Źródło:
Herba Polonica; 2013, 59, 1
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
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