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    Wyświetlanie 1-8 z 8
    Tytuł:
    Growth traits of natural regeneration of Scots pine (Pinus sylvestris L.) in south-eastern Poland
    Autorzy:
    Masternak, Katarzyna
    Głębocka, Katarzyna
    Surowaniec, Krystian
    Kowalczyk, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2041518.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    Scots pine
    soil preparation
    regeneration methods
    seedlings growth
    Opis:
    In recent years, particular attention has been paid to enhancing the meaning of natural regeneration, which is a part of the implementation of the concept of sustainable development and is one of the pillars of the natural direction of forest silviculture. Since the middle of the last century, the contribution of natural regeneration in Poland has been steadily increasing. The paper presents the analysis of density and variability of growth traits of natural regeneration of Scots pine (Pinus sylvestris L.) in south-eastern Poland. The study involved four compartments, which were prepared with the use of tiller and plough (active and double mouldboard). Density of seedlings, their height and root collar diameter, were measured. Density and growth characteristics of seedlings were higher at the tiller area and furrow compared with nonscarified soil and ridge. The highest cover with herbaceous plant was reported in ridges and non-scarified soil, but in most of the analysed compartments, it had no effect on the density of seedlings. It was found that different methods for soil preparation create different conditions for germination of seeds, which is reflected in the number of seedlings and its growth traits.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 3; 220-226
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stratification period combined with mechanical treatments increase Prunus persica and Prunus armeniaca seed germination
    Autorzy:
    Szymajda, M.
    Zurawicz, E.
    Maciorowski, R.
    Prus, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2077761.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    peach and apricot embryo
    cotyledon shortening
    young seedlings growth
    survival analysis
    Kaplan-Meier estimator
    Opis:
    The deep dormancy of the Prunus species seeds is caused by the presence of germination inhibi- tors, mainly abscisic acid (ABA) – in the endocarp, the seed coat and endosperm, and in the embryo. As a consequence, the removal of the endocarp, the seed coat together with the endosperm increases the num- ber of germinated seeds. The effect of different treatments of seeds of three peach cultivars – ‘Madison’, ‘Elberta’ and ‘Rakoniewicka’, and of three apricot cultivars – M II‑42, ‘Bella’ and ‘Somo’, were assessed in terms of seed germination and the growth of obtained young seedlings. Seed treatments involved different duration of stratification period at 5°C and removing endocarp, seed coat with endosperm and the part of cotyledons of the embryo. The best seed/embryo germination, about 96% for the peach cultivars and practically 100% for the apricot cultivars, was obtained by stratifying seeds for 90 days and then removing the seed coat together with the endosperm and subjecting the extracted embryos to a temperature of 20°C. The seedlings obtained from the seeds treated this way have shown good growth. Using these treatments, it was possible to obtain a larger number of apricot and peach seedlings, and thus increase the breeding efficiency of these species.
    Źródło:
    Dendrobiology; 2019, 81; 47-57
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Response of corn seedlings on mint and caraway essential oils in microencapsulated formulation
    Reakcja siewek kukurydzy na mikrokapsułkowane olejki eteryczne z mięty i kminku
    Autorzy:
    Pociecha, E.
    Gorczyca, A.
    Synowiec, A.
    Staszkiewicz, K.
    Matras, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/334677.pdf
    Data publikacji:
    2018
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
    Tematy:
    maize
    essential oil
    peppermint
    caraway
    germination
    seedlings growth
    kukurydza
    olejek eteryczny
    mięta
    kminek
    kiełkowanie
    wzrost siewek
    Opis:
    The aim of this study was to examine the influence of microencapsulated essential oils (EO) of peppermint (Mentha × piperita L.) and caraway (Carum carvi L.) on the initial growth and metabolism of maize (Zea mays L.). Four concentrations EO of caraway and peppermint, i.e. 3, 30, 300 and 3000 mg·L-1, were used. The influence of EO on the energy of germination of seeds, germination coefficient, biometry of seedlings, infection of seedlings by blight, activity of amylases in seeds, electrolyte leakage and efficiency of photosystem II were assessed. The results of an experiment showed that EO only in the highest concentrations have an inhibitory effect on the initial growth of maize. Concentrations in the range of 3-300 mg·L-1 do not limit the growth of maize seedlings. The EO in the lowest concentrations have a limiting effect on the pathogenesis of seedling blight caused by microorganisms of the natural seed microbiome. Based on the results, it can be concluded that peppermint and caraway EO have potential as a natural herbicide in the maize protection.
    Celem badań było określenie wpływu mikrokapsułkowanych olejków eterycznych (EO) z mięty (Mentha × piperita L.) i kminku (Carum carvi L.) na początkowy wzrost i metabolizm kukurydzy (Zea mays L.). W doświadczeniu wykorzystano cztery stężenia olejku miętowego i kminkowego, tj. 3, 30, 300 i 3000 mg·L-1. Oceniono wpływ EO na energię kiełkowania nasion, współczynnik kiełkowania, biometrię siewek, porażenie zgorzelą siewek, analizę aktywności amylaz w nasionach, wyciek elektrolitów i wydajność fotosystemu II. Na podstawie otrzymanych wyników stwierdzono, że EO tylko w najwyższych stężeniach mają hamujący wpływ na początkowy wzrost kukurydzy. Stężenia w zakresie 3-300 mg·L-1 nie ograniczają wzrostu siewek kukurydzy. EO w najniższych stężeniach mają działanie ograniczające patogenezę zgorzeli siewek wywołanej przez mikroorganizmy naturalnego mikrobiomu nasion. Podsumowując, należy stwierdzić, że kukurydza wykazuje mniejszą wrażliwość na zastosowane EO niż chwasty. W związku z tym EO z mięty i kminku mają potencjał jako naturalne herbicydy w ochronie kukurydzy.
    Źródło:
    Journal of Research and Applications in Agricultural Engineering; 2018, 63, 3; 62-69
    1642-686X
    2719-423X
    Pojawia się w:
    Journal of Research and Applications in Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of thidiazuron on in vitro shoot regeneration of Morus alba
    Autorzy:
    Rezaei-Zafarghandi, M.S.
    Rahmati-Joneidabad, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096960.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mulberry
    cotyledon
    plant growth regulator
    organogenesis
    in vitro-grown seedlings
    Opis:
    Mulberry (Morus alba L.) is an ornamental, medicinal, and fruit plant that belongs to the Moraceae family. One of the most important techniques used in plant biotechnology is tissue culture, which enables mass production of pathogen-free plants. Cotyledon has a high potential for shoot regeneration; however, to the best of our knowledge, there are no reports on plant regeneration from cotyledon explants of mulberry. Therefore, this study aimed to evaluate the potential of seedling-derived cotyledon segments to obtain shoot multiplication of mulberry. Various concentrations (0, 0.25, 0.5, 1, 2, 3, and 4 mg/l) of thidiazuron (TDZ) in combination with indole butyric acid (IBA) were used in a completely randomized design in three replications. The results showed that the highest percentage of regeneration frequency (96.67%) and the maximum number of shoots (4.43) were obtained on Murashige and Skoog (MS) medium supplemented with 0.25 mg/l TDZ and 0.025 mg/l IBA. In the rooting experiment, the maximum rooting percentage (83.33%) and the maximum number of roots per shoot (4.36) were obtained on MS medium containing 2 mg/l IBA. In vitro-raised plantlets were placed in pots and kept in room temperature for 30 days, and the plantlets showed more than 90% survival rate. On the basis of our results, the protocol described in this study has a high potential to be used in the micropropagation of this valuable plant.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 1; 55-61
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie kompostowanego osadu ściekowego i ektopróchnicy leśnej do wzbogacania gleb w uprawie szkółkarskiej lipy drobnolistnej (Tilia cordata Mill.)
    The Use of Compost from Sewage Sludge and Forest Ectohumus for Enrichment of Soils in the Nursery Cultivation of Littleleaf Linden (Tilia cordata Mill.)
    Autorzy:
    Klimek, A.
    Rolbiecki, S.
    Rolbiecki, R.
    Długosz, J.
    Musiał, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1819165.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    osad ściekowy
    uprawa szkółkarska
    lipa drobnolistna
    ectomycorrhizal fungi
    pine seedlings
    leaf litter
    acari
    growth
    mites
    Opis:
    The influence of fertilization with the compost prepared from treated sewage sludge with bark additive and mulching with the fresh forest ectohumus on the soil conditions, chosen parameters of two- and three-year old littleleaf linden seedlings growth as well as the occurrence of soil mites (Acari) was investigated in the paper. The experiments were carried out in 2009–2010 at forest nursery Białe Błota (Forest District Bydgoszcz) on the rusty soil. The whole area of the experiment was irrigated with the use of stationary sprinkling machine. The soil was characterized by the alkaline reaction (pH in H2O was in the range 7.2–7.4), the low content of available potassium and available phosphorus as well as the content of C-org from 35.7 to 38.4 g kg-1),. The C:N ratio ranged from 14.3 to 14.9. Two- and three-year old seedlings of littleleaf linden grown on plots fertilized with the compost were higher than those cultivated on plots with mineral fertilizer and they were also characterized by the higher number of leaves and the higher leaf area. Mulching – which was carried out in September of the first growing season – did not influence significantly on the growth parameters of two-year old seedlings (with the exception of the decrease in a leaf area). In the third growing season the mulching significantly influenced on all the seedling growth parameters tested, and – furthermore – there was also a significant interaction between the both studied treatments in shaping of the all growth parameters (with the exception of the plant height) of littleleaf linden seedlings. The density of mites in the soil was distinctly increased after the mulch-ing treatment , and it was many fold higher as compared to the control plot MC. On the base of the analysis it was found that the mulching and the fertilization with compost prepared from municipal sewage sludge influenced positively on the abundance of mites, especially oribatid mites as well as on their species diversity. Tectocepheus velatus was the most abundant species among the oribatid mites on all the stands of littleleaf linden cultivation. Abundance dynamics of this oribatid species in the two-years period of the study, especially on the variant with mulching and organic fertilization, indicates the upward trend in the number of its population.
    Źródło:
    Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 3; 2811-2828
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Występowanie Fusarium spp. na życie ozimym (Secale cereale L.) i podatność różnych genotypów na porażenie przez F. avenaceum (Fr.) Sacc. i F. culmorum (W.G.Sm.) Sacc.
    The occurrence of Fusarium spp. on winter rye (Secale cereale L.) and susceptibility of different genotypes to infection with F. avenaceum (Fr.) Sacc. and F. culmorum (W.G.Sm.) Sacc.
    Autorzy:
    Kiecana, Irena
    Cegiełko, Małgorzata
    Mielniczuk, Elżbieta
    Powiązania:
    https://bibliotekanauki.pl/articles/42791092.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    doświadczenie fitotronowe
    nekroza korzeni i pochew liściowych
    podatność odmian
    siewki
    growth chamber
    roots and leaf sheaths necrosis
    seedlings
    susceptibility of cultivars
    Opis:
    Badania przeprowadzono w latach 2001–2005 na 10 polach uprawnych żyta ozimego w województwie lubelskim. W każdym sezonie wegetacji po przezimowaniu oceniano udział roślin z objawami nekrozy korzeni i pochew liściowych. Odsetek takich roślin wynosił od 3,5 w 2002 do 45 w 2004 roku. Natomiast wartości wskaźników chorobowych wynosiły od 0,7 w 2002 do 22,0 w 2001 roku i różniły się istotnie. Głównym patogenem żyta okazał się F. avenaceum (33,5% wszystkich Fusarium ssp.). W znacznych ilościach wyosabniano także F. culmorum (18,8%) oraz F. poae (8,7%). Badania fitotronowe dotyczące podatności siewek 10 odmian żyta na porażenie przez F. avenaceum nr 24 i F. culmorum nr 33 wykazały, że najbardziej podatne na te patogeny były odmiany Kier oraz Dańkowskie Złote, dla których wartości wskaźników chorobowych wynosiły odpowiednio 58,0 i 64,25 w przypadku infekcji podłoża przez F. avenaceum oraz 88,25 dla odmiany Kier i 70,5 w przypadku odmiany Dańkowskie Złote w kombinacji doświadczenia z F. culmorum. Najmniej podatną na porażenie siewek przez F. avenaceum i F. culmorum okazała się odmiana Gradan F1, dla której wskaźniki chorobowe wynosiły odpowiednio 25,5 i 41,25.
    The investigations were carried out in 2001–2005 at 10 winter rye cultivation plots in the Lublin Province. The participation of plants with root and leaf sheaths necrosis was evaluated after winter in each vegetation season. The percentage of diseased plants ranged from 3.5 in 2002, to 45.0 in 2004. Mean values of the disease index ranged from 0.7 in 2002 to 22.0 in 2001 and differed significantly. The main pathogen of rye plants turned out to be the species F. avenaceum (33.5% of all Fusarium spp.). Considerable amounts of F. culmorum (18,8%) and F. poae (8.7%) were also detected. Investigation carried out in growth chamber on susceptibility of seedlings of 10 rye cultivars to infection with strains F. avenaceum 24 and F. culmorum 33 showed that the most susceptible genotypes to both these pathogens were cv. Kier and Dańkowskie Złote, for which values of the disease index amounted 58.0 and 64.25, respectively in the case of ground inoculation with F. avenaceum and 88.25 for cv. Kier and 70,5 for cv. Dańkowskie Złote in the experimental combination with F. culmorum. The least susceptible for seedlings infection with F. avenaceum and F. culmorum was cv. Gradan F1, for which values of the disease index amounted 25.5 and 41.25, respectively.  
    Źródło:
    Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2009, 252; 151-161
    0373-7837
    2657-8913
    Pojawia się w:
    Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ nawozów i fungicydów na kiełkowanie nasion oraz początkową fazę rozwoju siewek olszy czarnej Alnus glutinosa (Gaertn.)
    The impact of fertilisers and fungicides on seed germination and the initial phase of seedling growth in black alder Alnus glutinosa (Gaertn.)
    Autorzy:
    Bedkowski, M.
    Buraczyk, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2142638.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    organic fertilisers
    fungicides
    germination
    dynamics of seedling growth
    dry mass of seedlings
    Alnus glutinosa
    bionawozy
    fungicydy
    kiełkowanie nasion
    dynamika wzrostu sadzonek
    sucha masa siewek
    Opis:
    To test the influence of selected fertilisers and fungicides on the germination of black alder seeds and the initial phase of seedling growth, we conducted a laboratory experiment outlined in this paper. Six treatments were applied on petri dishes each containing 30 seeds. The substrate for germination was sterile filter paper wetted with an aqueous solution of either one of two fungicides, two organic fertilisers, a mineral fertiliser or distilled water (control). Fungicides and fertilisers were applied according to the manufacturers’ recommendations. In order to keep genetic variability to a minimum, seeds originated from a single tree in a seed stand located in the Chotyłów Forest District, eastern Poland. Germination and growth took place at a temperature of 23oc ± 2oC with a 14 h/10 h day/night cycle. Seeds began to germinate as early as the second day after sowing, except for the mineral fertiliser treatment, in which the first sprouting was observed on day 3. Seedling length was measured daily from the day of germination of a given seed through to day 15. Germination was found to proceed most rapidly in the control, while the largest increments in length and dry mass occurred in the control and fertiliser treatment with the so-called N1 fertiliser (solely comprising growth stimulators in the form of humic acids, chitosan and silicon). The most limited growth was observed under the influence of the F1 fungicide (active compound Thiram) as well as the organic fertiliser N2 (a mixture of mineral components and organic growth stimulators). Roots were found to develop most rapidly in the control and in the treatment with N1 (no mineral components). These are also the only two treatments in which the roots were longer than the stems after 15 days. Fertiliser N2 was found to have the most unfavourable influence on both, germination and the first phase of seedling deve- lopment. The fact that selected fertilizers and fungicides affected black alder seeds and seedlings under laboratory conditions does not mean that they will have an impact under field conditions or on other forest tree species. Therefore, this type of research will need to be conducted individually for each forest tree species.
    Źródło:
    Leśne Prace Badawcze; 2020, 81, 3; 107-114
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Podatność sadzonek sosny zwyczajnej i świerka pospolitego na infekcję opieńką ciemną w warunkach podwyższonej koncentracji CO2 w powietrzu
    Scots pine and Norway spruce seedlings susceptibility to infection by Armillaria ostoyae under increased CO2 concentration
    Autorzy:
    Lech, P.
    Żółciak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/989044.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    sosna zwyczajna
    Pinus sylvestris
    swierk pospolity
    Picea abies
    sadzonki
    infekcja grzybowa
    grzyby
    opienka ciemna
    Armillaria ostoyae
    czynniki srodowiska
    dwutlenek wegla
    koncentracja dwutlenku wegla
    wzrost roslin
    odpornosc na patogeny
    armillaria ostoyae
    growth and mortality of seedlings
    infection intensity
    co²
    Opis:
    Comparative cultivation experiment was carried out in the greenhouse to verify the assumption that increased air CO2 concentration (up to 1000 ppm) stimulates the infection intensity and mortality rate of Scots pine and Norway spruce seedlings subjected to the artificial inoculation with Armillaria ostoyae (Romagn.) Herink. It was found that increased air CO2 concentration reduces the intensity of pine and spruce seedlings infection by A. ostoyae, what was expressed both by the greater number of healthy and lower number of died seedlings at the end of 16−months−long experiment. However, the statistical significance of the observed differences was confirmed in case of only one out of three A. ostoyae isolates used in the experiment. It was also found that during the first 12 months of the experiment growth of pine and spruce seedlings was significantly stimulated by 1000 ppm air CO2 concentration compared to the ambient air conditions (approximately 380 ppm CO2) with not statistically significant effect of A. ostoyae presence. It was manifested for both tree species with significantly higher values of diameter at the stem base in all variants subjected to increased air CO2 concentration. No such difference was observed for the height of seedlings. All the findings suggest that elevated air CO2 concentration may compensate negative impact of disease on growth at the early stages of pathogen attack.
    Źródło:
    Sylwan; 2017, 161, 05; 385-394
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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