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    Wyświetlanie 1-3 z 3
    Tytuł:
    ABA alleviated soybean seedling stress exposed to UV-C radiation
    Autorzy:
    Yang, L.
    Gao, N.
    Yang, Y.
    Zhang, Y.
    Gao, J.
    Sun, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082655.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    ultraviolet-C
    ABA
    active oxygen metabolism
    flavonoids
    soybean
    Opis:
    In order to understand the roles of abscisis acid in soybean exposed to UV-C radiation, soybean seedlings were exposed to UV-C radiation and ABA was applied. The chlorophyll content, active oxygen metabolism and flavonoids content of soybean seedlings were investigated. The present study revealed that UV-C radiation significantly attenuated the chlorophyll content and suppressed PSII activity. It was observed that the contents of H2O2, malondialdehyde and O2 - were markedly increased, and the activities of antioxidant enzymes such as superoxide dismutase, peroxidase and catalase were enhanced, so were the flavonoids content, whereas the seedling height and biomass were significantly reduced. ABA application improved the activities of superoxide dismutase, peroxidase, catalase and the contents of flavonoids, decreased the contents of H2O2, MDA and O2 -, and also increased the chlorophyll content and enhanced PSII performance, thus enhancing biomass accumulation. The results suggested that ABA alleviated UV-C damage to soybean seedlings by reducing ROS generation and enhancing antioxidase activity. The isoflavones daidzin and genistein were significantly responsive to UV-C.
    Źródło:
    International Agrophysics; 2020, 34, 1; 115-121
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of UV-C irradiation of potato seed tubers on the defects in potato plant crops
    Wpływ naświetlania sadzeniaków ziemniaka UV-C na powstawanie wad bulw w plonie roślin potomnych
    Autorzy:
    Jakubowski, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/93525.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    potato
    tuber
    ultraviolet C
    defect
    ziemniak
    bulwa
    ultrafiolet w paśmie C
    wada
    Opis:
    The purpose of the paper was to determine the impact of UV-C irradiation of seed potatoes on the formation of tuber defects in the progeny crop. The field experiment was carried out in 2016-2018, and the object of research was potato plants of the Vineta, Lord and Owacja varieties. Different heights of the UV-C radiator above the chamber bottom (40-100 cm) and exposure times (1-30 min.) were used. Data was analyzed with the STATISTICA 13.3 program, at the assumed significance level α = 0.05, using a non-parametric test χ2 for multidimensional contingency tables. In the scope of the parameters of the chamber for UV irradiation of plant material adopted in the experiment, no statistically significant UV-C effect on potato tuber defects was demonstrated. In the potato tuber crop of the examined varieties, shape deformations in the form of kidney and spindle disease were identified. The crop of potato obtained from seed potatoes irradiated with UV-C demonstrated a lower percentage of deformed tubers, as compared to the control combination.
    Praca miała na celu określenie wpływ naświetlania sadzeniaków ziemniaka UV-C na powstawanie wad bulw w plonie roślin potomnych. Ścisłe doświadczenie polowe realizowano w latach 2016-2018 a obiektem badań były rośliny ziemniaka odmiany Vineta, Lord i Owacja. Stosowano różne wysokości promiennika UV-C nad dnem komory (40, 70 i 100 cm) oraz czasy naświetlania (1, 10 i 30 min.). Analizę danych wykonano w programie STATISTICA 13.3 na założonym poziomie istotności α=0,05 stosując nieparametryczny test χ 2 dla wielowymiarowych tabel kontyngencji. W zakresie przyjętych w doświadczeniu parametrów pracy komory do naświetlania materiału roślinnego ultrafioletem nie wykazano statystycznie istotnego wpływu UV-C na powstawanie wad bulw ziemniaka. Stwierdzono, że w plonie bulw ziemniaka badanych odmian występują deformacje kształtu mające postać nerkowatości i wrzecionowatości. W plonie ziemniaka, uzyskanego z roślin sadzeniaków naświetlanych UV-C, stwierdzono mniejszy odsetek bulw zdeformowanych w odniesieniu do kombinacji kontrolnej.
    Źródło:
    Agricultural Engineering; 2019, 23, 3; 71-77
    2083-1587
    Pojawia się w:
    Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effectiveness of Melt-Blown Filter Cartridge and UV-C Rays on the Reduction of Total Coliform and Water Hardness in Production Process Water
    Autorzy:
    Fikri, Elanda
    Putri, Nursyifa Yuliani
    Djuhriah, Nanny
    Hanurawaty, Neneng Yetty
    Khair, Amar Sharaf Eldin
    Powiązania:
    https://bibliotekanauki.pl/articles/2086408.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    melt blown
    filter cartridge
    ultraviolet C
    UVC
    total coliform
    water hardness
    Opis:
    Water is one of the humans’ basic needs that are essential in daily lives. The water use related to the production of the food processing industry must at least meet the quality standards required for drinking water. The Production process water is obtained from the artesian well that has been treated with a physical treatment process. The microbiological examination result of total Coliform is 8.6 MPN/100 ml meaning that it does not meet the quality standard requirements, which is 0 MPN/100 ml (The Minister of Health Regulation Number 492 of 2010, concerning Drinking Water Quality Requirements), it is necessary to treat the production process water using a Melt Blown Filter (MBF) and UV-C rays. The purpose of this study was to determine the differences in the variation of the 1, 3, and 5-micron of Melt Blown Filter cartridge 10” in reducing the amount of total Coliform, as well as the water hardness and their effect on disinfection using UV-C rays. The type of research used is experimental research with a pretest-posttest without control research design. There is a reduction in the average total Coliform after the treatment using a Melt Blown Filter, with a result of 1, 3, and 5-micron as 2.95 MPN /100ml, 3.61 MPB/100 ml, and 7.31 MPN/100 ml with a percentage reduction of 100%, 94.5%, and 82.4%, respectively. The average total Coliform using the Melt Blown Filter equipped with the UV-C rays treatment resulted in a reduction of 1, 3, and 5-micron as 2.95 MPN/100 ml, 3.95 MPN/100 ml, 8.88 MPN/100 ml respectively, with a reduction percentage of 100%, for each treatment. The data analysis for total coliform using the One-Way ANOVA test resulted in a pvalue of 0.001, the effective variation obtained is 1-micron MBF equipped with UV-C rays. The analysis of results pertaining to the water hardness data showed that the use of Melt Blown Filter could not reduce water hardness, but the UV-C rays could still be used accordingly. The data analysis for water hardness was performed using KruskalWallis with a p-value of 0.820, meaning that there are no differences in Melt Blown Filter variation on the results of total water hardness value.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 4; 181--190
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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