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    Wyświetlanie 1-7 z 7
    Tytuł:
    The role of kaolin and Bordeaux mixture in Vitis vinifera under water stress conditions: oxidative stress
    Autorzy:
    Dias, M.
    Jesus, C.
    Pinto, G.
    Santos, C.
    Goncalves, B.
    Goncalves, D.
    Malheiro, A.
    Correia, C.
    Moutinho-Pereira, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/80420.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    kaolin
    Bordeaux mixture
    Vitis vinifera
    water stress
    oxidative stress
    grape-vine
    plant stress
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improved yield, fruit quality, and shelf life in ‘Flame Seedless’ grapevine with pre-harvest foliar applications of forchlorfenuron, gibberellic acid, and abscisic acid
    Autorzy:
    Khalil, H.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1080011.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    gibberellic acid
    forchlorfenuron
    abscisic acid
    grape-vine
    Vitis vinifera
    fruit quality
    berry size
    anthocyanin
    Opis:
    The effect of gibberellic acid (GA3), forchlorfenuron (CPPU), and abscisic acid (ABA) on the parameters of yield of ‘Flame Seedless’ grapes was investigated. The clusters of 8-year-old grapevines were sprayed with solutions: GA3 at 25 mg·dm-3, CPPU at 10 mg·dm-3, and ABA at 300 mg·dm-3, alone or in combinations. GA3 and CPPU treatment increased yield, cluster weight and length, berry weight and diameter, as well as fruit firmness, but reduced the total soluble solids (TSS) and intensity of berry color. Anthocyanin content of berries treated with GA3 and CPPU increased significantly by ABA treatment. Shelf life was increased by GA3 and CPPU treatments, as they decreased the percentage of weight loss, shattering, and unmarketable berries after storing at 20 °C for 7 days. Thus, it can be concluded that the combined use of GA3, CPPU, and ABA may be an efficient practice for fruit enlargement, coloration, and keeping quality in ‘Flame Seedless’ grape.
    Źródło:
    Journal of Horticultural Research; 2020, 28, 1; 77-86
    2300-5009
    Pojawia się w:
    Journal of Horticultural Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Leaf nutrient status of ‘Trakya İlkeren’ grape variety (Vitis vinifera L.) in different phenological stages
    Autorzy:
    Köse, B.
    Horuz, A.
    Akınoğlu, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/11859518.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    grape-vine
    Vitis vinifera
    Trakya Ilkeren cultivar
    plant cultivar
    leaf nutrient content
    rootstock
    phenological stage
    Opis:
    Nutrition of grapevines is very sensitive issue in vineyards. Soil quality is very important matter for growth and quality in vine growing. Rootstocks affect the growth and productivity of grapevine as well as increase or decrease of the nutrient uptake. The present study was conducted to determine the phenological changes of nutrient uptakes in 10 years ‘Trakya İlkeren’ grape variety (Vitis vinifera L.) in the heavy clay soil conditions. The grapevines are grown on 5BB and 5C rootstocks. The changes of macro and micronutrients in leaf blades from bud burst to post harvest period were investigated in the experiment. Leaf nutrient contents of leaf blades show varied depending on the phenological stages and rootstocks (P < 0.01 and P < 0.05). Nitrogen and phosphorus content of leaf blade was decreased until veraison stage for both rootstocks. The highest potassium (K) content was obtained at blooming stage. In blooming stage nitrogen (N), phosphorus (P), potassium (K) and magnesium (Mg) nutrients was found high on 5C rootstock whereas calcium (Ca) was high on 5BB. Grapevines were found insufficient for P, K and Mg nutrients in the study. Total chlorophyll and chlorophyll a/b ratio showed significantly varied among to rootstocks and phenological stages (P < 0.01). While the highest leaf chlorophyll content was measured during flowering period it was found at the lowest through to harvest on both rootstocks. Overall total chlorophyll contents and chlorophyll a/b ratio were significantly higher on 5BB grafted vines. In the research, 5C was found to be more successful rootstock than 5BB for nutrient uptakes.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 4; 15-24
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of grapevine resistance to downy and powdery mildew in ‘Regent’ × ‘Bogazkere’ hybrid population segregating for resistance genes
    Autorzy:
    Shidfar, M.
    Akkurt, M.
    Atak, A.
    Ergül, A.
    Söylemezoğlu, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/12621161.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    plant cultivation
    grape-vine
    Vitis vinifera
    fruit tree
    plant cultivar
    Bogazkere cultivar
    Regent cultivar
    plant hybrid
    hybrid population
    resistance gene
    Opis:
    Fruit production should be adapted to future scenarios that are frequently associated with scarce resources, especially freshwater and fertilizers. New biologically-based fruit production strategies, i.e. taking into account tree growth and water status, are required to optimize irrigation and fertilization under abiotic stress conditions. It was hypothesized that a moderate abiotic stress, here deficit irrigation with or without nitrogen deficit, in the preharvest period, could decrease postharvest losses due to diseases and pruning weights due to reduced vegetative growth, without sacrificing the yield and fruit quality. This study was conducted over two years using the same trees of ‘Moncante’ nectarine cultivar grown in a commercial orchard. Trees were assigned to three treatments: (1) full irrigation at 80% estimated crop evapotranspiration (ETc), (2) deficit irrigation, i.e. at 75% of full irrigation, and (3) deficit irrigation and deficit nitrogen, i.e. at 75% of full irrigation and 75% of usual N-fertilization adopted by the grower in this commercial orchard. Deficit irrigation alone and in combination with deficit nitrogen reduced postharvest diseases and pruning weights without significant yield losses. Our results suggest that ETc-based approaches of reduced water irrigation may be a sustainable way to decrease phytosanitary inputs and workload in the orchard while maintaining the orchard performance.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 1; 181-188
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phenolic compounds and properties of antioxidants in grapevine roots [Vitis vinifera L.] under low-temperature stress followed by recovery
    Autorzy:
    Weidner, S
    Kordala, E.
    Brosowska-Arendt, W.
    Karamac, M.
    Kosinska, A.
    Amarowicz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/57473.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    oxidative stress
    environment condition
    plant growth
    root
    Vitis vinifera
    phenolic compound
    chill stress
    plant development
    grape-vine
    antioxidative system
    Opis:
    The research has been performed on roots of Vitis vinifera, cv. Himrod, obtained from seedlings grown under chill stress conditions (+10oC in the day and +7oC at night), under optimum conditions (+25oC in the day and +18oC at night) and from seedling which underwent a recover period after the chill stress treatment. The purpose of the study has been to determine quantitative and qualitative changes in phenolic compounds as well as to demonstrate changes in antiradical properties of extracts from grapevine roots, which appeared as a result of chill stress and during recovery under the optimum conditions following the stress. Phenolic compounds from grapevine roots were extracted using 80% acetone. The total content of phenolics was determined by colorimetry. The content of tannins was tested by precipitation with bovine serum albumin. The reducing power as well as DPPH• free radical and ABTS+• cation radical scavenging activity of the extracts were also tested. In order to identify phenolic compounds present in the extracts the RP-HPLC technique was employed. The tested material was found to contain tannins and three identified phenolic acids: ferulic, caffeic and p-coumaric ones. The latter occurred in the highest concentrations (from 4.46 to 6.28 µg/g fresh matter). Ferulic acid appeared in smaller amounts (from 1.68 to 2.65 µg/g fresh matter), followed by caffeic acid (from 0.87 to 1.55 µg/g fresh matter). Significantly less total phenolic compounds occurred in roots of seedlings subjected to chill stress. However, the total content of these compounds increased significantly in roots of plants which underwent recovery after chill stress. Concentration of tannins was determined by two methods. The content of condensed tannins was depressed in roots as a result of low temperature stress, whereas the content of condensed and hydrolysing tannins (determined via the BSA method) rose under chill stress conditions. A significant increase in tannins in root extracts (determined with both methods) was found during the recovery process after the stress. The three identified phenolic acids appeared in grapevine roots as ester-bound compounds. It has been demonstrated that the content of phenolic acids significantly fell as a result of low temperatures, but increased during recovery after chill stress. The weakest ability to scavenge DPPH• and ABTS+• free radicals as well as the reducing power were shown by the extract obtained from grapevine roots from the seedlings subjected to chill stress. Both free radical scavenging activity and reducing power were observed to increase considerably during recovery after stress. This seems to prove that during the recovery process following chill stress the synthesis of antioxidative compounds in grapevine roots is much more intensive.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2009, 78, 4; 279-286
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Phenolic compounds and properties of antioxidants in grapevine roots [Vitis vinifera L.] under drought stress followed by recovery
    Autorzy:
    Weidner, S
    Karolak, M.
    Karamac, M.
    Kosinska, A.
    Amarowicz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/59363.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    soil condition
    drought stress
    oxidative stress
    root
    Vitis vinifera
    seedling
    plant root
    phenolic compound
    root tissue
    grape-vine
    soil moisture
    antioxidative system
    Opis:
    Grapevine seedlings Vitis vinifera were grown in a greenhouse under optimum conditions (soil moisture ca 70%) and under drought stress (soil moisture ca 35%). In addition, some of the plants subjected to drought underwent subsequent regeneration under optimum conditions. Drought stress caused accumulation of total phenolic compounds in grapevine roots, which may indicate that these compounds play an important role in the adaptation of roots to growth under stress conditions. Phenolic acids found in the roots occurred in the ester-bound form only. p-coumaric acid was present in the highest concentrations (6.2 to 10.5 µg/g fresh matter). The content of ferulic acid was lower, ranging from 2.4 to 4.6 µg/g fresh matter. The lowest concentration in grapevine roots was achieved by caffeic acid (2.4 to 2.9 µg/g fresh matter). The levels of p-coumaric and ferulic acids in roots rose significantly under the drought stress, while the concentration of caffeic acid increased during the post-drought recovery period. This may suggest that some of the phenolic acids protect plants under stress conditions. All the extracts from grapevine roots had antioxidative properties, but the antiradical activity of the extracts obtained from roots subjected to drought stress was inferior to the control. The same extracts were also characterised by depressed reducing power. The results imply that tolerance of grapevine to soil drought may be associated with the value of antioxidative potential in root tissues of these plants.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2009, 78, 2; 97-103
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of polyphenols on cell viability of selected varieties of grapes berries and pomace
    Autorzy:
    Capakova, Z.
    Humpolicek, P.
    Mlcek, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/11895240.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    Czech Republic
    plant cultivation
    grape-vine
    Vitis vinifera
    fruit bush
    grape
    grape pomace
    Moravian Muscat cultivar
    Blue Burgundy cultivar
    Lemberger cultivar
    cell viability
    polyphenol
    phenolic compound
    proliferation
    Opis:
    The effect on cell viability and content of PhC of three grapes varieties – Moravian Muscat, Blue Burgundy and Lemberger is presented. The effect of polyphenols from wine and grapes was studied for many times, but the effect of pomace, the by-product of wine production, was neglected. Thus study is devoted to compare the effect of berries and pomace on cell viability in context of their utilization as source of bioactive compounds. Effect on viability of human keratinocytes (HaCaT) was investigated in vitro using following concentrations of PhC in cultivation medium: 25, 50, 75 and 100 µg·ml–1. The results show that the content of PhC in berries and pomace was similar and the cell viability decreased with increasing concentrations of PhC, in most cases. The impact on cell viability also depends on individual variety of grapes.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 115-121
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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