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    Wyświetlanie 1-15 z 15
    Tytuł:
    Effect of priming of seeds of Medicago sativa "Bami" with gibberellic acid on germination, seedlings growth and antioxidant enzymes activity under salinity stress
    Autorzy:
    Younesi, O.
    Moradi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1828.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Ogrodnictwa
    Tematy:
    salinity
    seed priming
    Medicago sativa
    gibberellic acid
    germination
    seedling growth
    growth
    antioxidative enzyme
    alfalfa
    guaiacol peroxidase
    catalase
    ascorbate peroxidase
    glutathione reductase
    Źródło:
    Journal of Horticultural Research; 2014, 22, 2
    2300-5009
    Pojawia się w:
    Journal of Horticultural Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cross-modal anchoring: magnitude priming based on length leads to contrast effect in numerosity judgment
    Autorzy:
    Tomczak, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/2129194.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    estimations
    cross-modal anchoring
    numerosity judgment
    Opis:
    On one hand, Judgment and Decision Making (JDM) research reports a phenomena called the cross-modal effect, which shows that magnitude priming based on spatial attributes of a stimuli might influence numerical estimations. On the other hand, research directed at human cognition reports that processing of space and numbers may interfere. Despite different theoretical backgrounds, those two lines of research report similar results. Is it possible that the cross-modal anchoring and the interaction between space and number are just two manifestations of the same psychological effect, conceptualized within different paradigms? In Experiment 1 participants were asked to draw lines of different length and estimate numerosity of sets of dots presented for 100 ms. Based on current studies, magnitude priming is assimilated with subsequent numerical judgment. However, an unexpected contrast effect was observed in Experiment 1. Priming of “smallness” resulted in higher estimations of numerosity, while priming of “largeness” was associated with lower estimations. Short exposition time often leads to automatic attention processes, which could possibly account for the observed contrast effect. In Experiment 2 this assumption was tested, verifying potential differences between different exposition times (100 ms vs 300 ms). The same pattern of results was obtained. Findings of both experiments are discussed from the perspective of different anchoring paradigms and concepts related to space and number processing.
    Źródło:
    Polish Psychological Bulletin; 2018, 49, 4; 398-405
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The mechanism of non-numerical anchoring heuristic based on magnitude priming: is it just the basic anchoring effect in disguise?
    Autorzy:
    Tomczak, Pawel
    Traczyk, Jakub
    Powiązania:
    https://bibliotekanauki.pl/articles/2128273.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    anchoring effect
    magnitude priming
    non-numerical anchoring
    estimations
    Opis:
    The anchoring heuristic refers to phenomena when an arbitrary number affects subsequent numerical estimations. Oppenheimer, LeBoeuf and Brewer (2008) showed that it is not necessary for the anchor to be a numerical value (i.e., the act of drawing lines of different length effectively shifts numerical estimations), yet current models describing the anchoring heuristic do not fully account for the mechanism of non-numerical anchoring. However, this effect shows similarity to the basic anchoring effect – obtained without the comparative question and based on the availability of the given number in working memory. In this study, we attempt to verify whether those two effect share the same psychological mechanism. In Experiment 1, we show that non-numerical anchoring based on magnitude priming cannot be obtained when the lines are just observed. The examined mechanism proves to be dependent on the act of drawing, displaying limitations similar to the basic anchoring effect, previously pointed out by Brewer and Chapman (2002). By using the same numerical anchors in different size formats, in Experiment 2 we showed that anchoring based on magnitude priming occurs even when the numerical values do not affect the estimations. The results are discussed in the light of a possible mechanism that underlies the investigated effect.
    Źródło:
    Polish Psychological Bulletin; 2017, 3; 401-410
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seed priming and foliar application of plant growth regulators affect the growth and yield of okra under calcareous soils
    Autorzy:
    Tahir, M.T.
    Anjum, M.A.
    Saqib, M.
    Khalid, M.F.
    Hussain, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/12664203.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    Pakistan
    plant cultivation
    okra
    Abelmoschus esculentus
    seed priming
    plant growth
    growth regulator
    growth regulator effect
    foliar application
    naphthaleneacetic acid
    gibberellin A3
    Opis:
    A field study was conducted to evaluate the effect of different plant growth regulators (PGRs) applied through seed priming and foliar spray on growth and yield of three okra cultivars grown under calcareous soils. The cultivars of Punjab Selection and Sabzpari produced significantly higher number of branches and leaves per plant, pod length and diameter and pod yield as compared to cv. Green ferry, while, cv. Punjab selection produced significantly greater number of flowers and pods per plant as compared to other two cultivars. Seed germination (%), plant height, and fruit set (%) were not affected by the cultivars. Among the PGR treatments, seed primed with GA3 resulted in significantly higher germination percentage and greater plant height at flowering. Seed priming and foliar spray with NAA and GA3 were effective in increasing the final plant height, number of branches, number of leaves, number of flowers and number of pods per plant and fruit set (%), fresh weight per pod and pod yield. However, pod diameter, pod moisture content and dry weight per pod were not influenced by the PGR treatments applied. These results suggested that the PGRs have great potential to improve seed germination, enhance growth and increase yield of okra cultivars under calcareous soils.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 4; 25-33
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of laser- and hydropriming of seeds on some physiological parameters in sugar beet
    Autorzy:
    Sacala, E.
    Demczuk, A.
    Grzys, E.
    Prosba-Bialczyk, U.
    Szajsner, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/15329.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    laser stimulation
    priming
    seed
    physiological parameter
    sugar-beet
    phosphorus
    acid phosphatase
    chlorophyll
    carotenoid
    sugar
    nutrient value
    Opis:
    The aim of this study was to evaluate the effect of pre-sowing seeds treatments on some agro-physiological parameters of sugar beets. The selected seeds treatments were: laser stimulation, hydropriming and combination of hydropriming and laser radiation. The impact of the seeds stimulation was analysed by determining the acid phosphatase activity, concentration of phosphate and photosynthetic pigments in leaves as well as nutrient status and some yield parameters of the roots. The plants were assayed four times during vegetation period. Experiment shown that different priming methods had relatively small effect on both the level of orthophosphate and total phosphorus concentration. On the other hand, the plants raised from seeds both hydro- and laser-primed remained more stable level of phosphate during whole vegetative season than remaining plants. The highest activity of acid phosphatase was observed in the younger plants and amongst different seed treatments, plants grown from non-primed seeds and laser primed seeds showed the highest enzyme activity. In the later stages of growth the activity considerably lowered. Considering the effect of different seeds treatments it was observed a significant increase in enzyme activity in plants emerged from the hydroprimed or laser stimulated seeds as well as an increment of chlorophylls in plants emerged from the hydroprimed seeds and both hydro- and laser primed ones. Seeds stimulation had a positive effect on the potassium content particularly in leaves of sugar beet and on some yield parameters of the roots. Concluding, it can be stated that the effect of pre-sowing seed stimulation (priming) was visible during the entire growing season and amongst the examined methods of seeds treatment, hydropriming sole or in a combination with laser radiation caused the highest alterations in assayed parameters.
    Źródło:
    Journal of Elementology; 2016, 21, 2
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of seed priming on improvement of germination of Vicia villosa under allelopathic components of Eucalyptus camaldulensis
    Autorzy:
    Saberi, Morteza
    Tarnian, Farajollah
    Powiązania:
    https://bibliotekanauki.pl/articles/2199684.pdf
    Data publikacji:
    2012-08-20
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    allelopathy
    germination
    chemical stimulators
    Eucalyptus camaldulensis
    Vicia villosa
    Opis:
    The objective of this study was to evaluate the effectiveness of seed priming in improving seed germination and seedling vigor of Vicia villosa under laboratory conditions. Chemical stimulators included: gibberellic acid (125,250 and 500 ppm), salicylic acid (100,200 and 300 mg/lit) and extract of Eucalyptus camaldulensis (0, 25, 50, 75 and 100 %). This experiment was carried out as factorial experiment based on a randomized completely design, with four replications. The results showed that Eucalyptus camaldulensis extract had inhibitive effect on germination and early seedling growth of Vicia villosa. Early seedling growth of Vicia villosa increased by pretreatment of seeds in chemical stimulators so that the highest effect was observed in gibberellic acid (250 ppm). The chemical stimulators don’t have any effect on germination speed. Interaction effects of allelopathic and pretreatment with chemical stimulators were significance on germination percentage, root, shoot and plant length and seed vigor index.
    Źródło:
    Plant Breeding and Seed Science; 2012, 66; 99-108
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Emotional and Non-emotional Concepts Activation on Information Processing and Unintentional Memorizing
    Autorzy:
    Pawłowska, Monika
    Magier-Łakomy, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/430584.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    semantic concepts
    cognitive representation of emotion
    congruency effect
    lexical decision task (LTD)
    priming effect
    priming paradigm
    unintentional memorizing
    Opis:
    The aim of the work is to compare mechanisms of semantic and emotional processing and memory. Targets (words and non-words) were primed (100 ms) by category name (semantic in Experiment 1 and emotional in Experiment 2). The congruency of prime and target was manipulated. The reaction time of lexical decisions and the effects of unintentional memorizing of word targets were measured. Activation of semantic (Experiment 1) and emotional (Experiment 2) nodes leads to faster processing of related concepts: congruent targets are processed faster than incongruent. Processing congruent primed emotional concepts depends on their modality: anger and joy words are processed faster than sadness. Thus, congruently primed activating emotional concepts are processed differently from congruently primed deactivating concepts. The effectiveness of unintentional memory of emotional and non-emotional concepts (words) is based on different mechanisms: congruently primed emotional words are better remembered than incongruently primed. The results are discussed in the framework of spreading activation theory and theory of emotional memory.
    Źródło:
    Polish Psychological Bulletin; 2011, 42, 3; 150-159
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soybean seed germinattion and seedling growth in response to deterioration and priming: effect of seed size
    Autorzy:
    Moshtaghi-Khavaran, Amir
    Khomari, Saeid
    Zare, Naser
    Powiązania:
    https://bibliotekanauki.pl/articles/2199614.pdf
    Data publikacji:
    2014-12-18
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    aging
    germination
    priming
    seed size
    soybean
    Opis:
    A laboratory experiment was conducted to determine if separation of soybean [Glycine max (L.) Merr.] seeds by size might be effective in germinability of aged and primed seeds and subsequent seedling vigour. A known soybean seed lot was separated into four size classes using round-hole screens. The seed lots were deteriorated by rapid aging and invigorated by hydro- and halo-priming. These pre-treated seeds were planted in rolled paper towels and the results were evaluated according to ISTA rules. The small soybean seeds had higher speed of germination than the other size classes. The seedlings produced from large and medium seeds were longer and heavier than those from other size classes. Our results indicated that the large seeds had less sensitivity to short-term aging condition owing to the number of normal seedlings, while the deterioration more increased the germination time of large and medium seeds, compared to small ones. The alleviatory effects of halo-priming on deterioration of seeds are greater compared with hydro-priming. Although there are some debates, the present data further indicate that larger soybean seeds are susceptible to aging condition.
    Źródło:
    Plant Breeding and Seed Science; 2014, 70; 55-67
    1429-3862
    2083-599X
    Pojawia się w:
    Plant Breeding and Seed Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of laser priming on canola yield and its components under salt stress
    Autorzy:
    Mohammadi, S.K.
    Shekari, F.
    Fotovat, R.
    Darudi, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/26380.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    laser irradiation
    canola
    yield
    yield component
    salt stress
    salinity
    seed
    correlation coefficient
    Opis:
    The effect of laser priming at different irradiation times on canola yield and its components under saline conditions were investigated. The results showed that laser priming had a positive effect on yield and its components and caused yield increase under saline conditions. Increase in salt levels had a negative and significant effect on seed yield, number of seeds per pod, number of pod per plant, pod length and plant height. The results showed that 45-min laser priming had the strongest effect on yield and yield components and reduced significantly the adverse effects of salinity.By contrast, laser radiation applied for 60 and 75 min, resulted in a dramatic decrease in yield and its components. Correlation coefficients between the attributes showed that canola yield had a positive and significant correlation with plant height, number of seeds, pod per main branch and lateral branches, length of pod and number of lateral branches. Effects of laser and salinity were significant on lateral branch pod length but not on main branch pods.
    Źródło:
    International Agrophysics; 2012, 26, 1
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of interlingual and intralingual semantic priming on translating ambiguous words
    Autorzy:
    Maciuszek, Józef
    Unrug, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2127399.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ambiguity
    semantic priming
    translating homonyms
    bilingualism
    Opis:
    The two experiments described in this article are focused on semantic priming in the context of lexical ambiguity and hierarchic model of mental lexicon. For both experiments, the verification method was a decision taken in the process of translating a sentence from Polish (L1) to English (L2). The decision was a result of solving dilemma of interpretation of the particular sentence that included homonym. The sentences used in the experiments were prepared in a manner that allowed them to be interpreted in at least two ways – each way being a direct result of interpretation of a ambiguous word meaning included in a sentence. In this study the secondary meanings of the homonyms were primed. In the first experiment the primes were presented in L2 – therefore this part of the study was concentrated on interlingual aspect of semantic priming. The second experiment was focused on intralingual aspect of semantic priming and the primes were presented in L1. The results of both experiments have shown the effect of semantic priming of ambiguous words’ meanings when translating from one language to another. Participants used significantly more often (when translating sentences from Polish to English) those English words the meaning of which was primed in the experimental groups during the first phase of the conducted experiments. We discuss the results in the context of the hierarchic model of mental lexicon in the case of bilingualism and we suggest possible paths for future research.
    Źródło:
    Polish Psychological Bulletin; 2018, 49, 2; 221-228
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of osmopriming on proline metabolism in germinating rape (Brassica napus L.) seeds under salinity stress
    Autorzy:
    Kubala, S.
    Wojtyla, L.
    Mikolajczyk, M.
    Lechowska, K.
    Garnczarska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/79882.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    osmopriming
    proline
    Brassica napus
    seed
    salinity stress
    seed priming
    abiotic stress
    biotic stress
    salinity tolerance
    germinating seed
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Technological applications of border effects by hole charges system explosion
    Technologiczne wykorzystanie efektów granicznych wybuchu systemu ładunków otworowych
    Autorzy:
    Kravets, Viktor
    Shukurov, Azar
    Zakusylo, Roman
    Kovtun, Andrij
    Powiązania:
    https://bibliotekanauki.pl/articles/1063124.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    explosive
    border effect
    tamping
    overdrill
    modelling
    cutter break
    priming charge
    conic charge
    metallic laying
    power stream
    materiał wybuchowy
    efekt graniczny
    przybitka
    nadmierne przebicie
    modelowanie
    perforacja
    ładunek inicjujący
    ładunek stożkowy
    warstwa metaliczna
    strumień energii
    Opis:
    W technika strzelniczej w przemyśle górniczym wykorzystuje głównie wydłużone ładunki wybuchowe, gdyż zapewnia to optymalne rozmieszczenie materiałów wybuchowych w obszarze, w którym niszczony jest górotwór. Zdecydowanie najczęściej stosuje się otwarte otwory strzałowe, gdyż ułatwia to ich elaborację. Ładunek materiału wybuchowego umieszczany w otworze strzałowym powinien spełniać kilka funkcji. Przede wszystkim, powinien efektywnie kruszyć górotwór wokół otworu strzałowego. Powinien także zabezpieczać przed wystąpieniem efektu nieprawidłowej fragmentacji górotworu wokół otworu strzałowego. Zmniejszenie lub całkowita likwidacja efektu nieprawidłowej fragmentacji górotworu jest możliwa w wyniku wprowadzenia rozwiązań strukturalnych, powodujących zmianę kierunku strumienia energii wybuchu w pożądany sposób. W omawianym obszarze nadal poszukiwane są nowe rozwiązania. W pracy przeprowadzono analizę rozwoju procesu deformacji górotworu w strefie wybuchu, w celu opracowania metody zabezpieczającej przed niewłaściwym przebiegiem fragmentacji materiału skalnego.
    Źródło:
    Materiały Wysokoenergetyczne; 2019, 11, 2; 21-30
    2083-0165
    Pojawia się w:
    Materiały Wysokoenergetyczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The auditory priming effect in Japanese learners of English: effects of voice specificity and word stress patterns
    Efekty torowania słuchowego u Japończyków uczących się języka angielskiego jako obcego: wpływy specyfiki głosu i schematów akcentowych
    Autorzy:
    Hori, Tomoko
    Sugiura, Kaori
    Powiązania:
    https://bibliotekanauki.pl/articles/2118637.pdf
    Data publikacji:
    2013-12-30
    Wydawca:
    Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
    Tematy:
    torowanie słuchowe
    reprezentacja fonologiczna
    głos
    schematy akcentowe
    auditory priming
    phonological representation
    voice
    stress patterns
    Opis:
    This study investigated whether and to what extent stimulus characteristics such as voices (same vs. different) and stress patterns (strong–weak vs. weak–strong) influence the auditory priming effect. The experiment involved 20 Japanese participants learning the English language, who were asked to listen to English words (half of them in the same voice or stress pattern as in a prior study session) and repeat them as quickly and accurately as possible. The participants were significantly faster at initiating word production, when the word was spoken in the same voice in the study and test phase. Our results also revealed that neither English proficiency nor stress patterns had any influence on the priming effect.
    Celem artykułu jest wyjaśnienie, czy – a jeśli tak, to w jakim stopniu – dwie cechy bodźca, mianowicie głos (ten sam / inny) i schemat akcentowania (mocny – słaby / słaby – mocny), wpływają na rezultaty torowania słuchowego. W eksperymencie badawczym uczestniczyło 20 Japończyków uczących się języka angielskiego jako obcego, którzy byli proszeni o wysłuchanie i powtórzenie angielskich wyrazów jak najszybciej i najdokładniej (połowa z nich była wypowiedziana tym samym głosem lub miała taki sam schemat akcentowy jak w poprzedniej sesji). Uczestnicy badania zaczynali wypowiadać słowa znacznie szybciej, kiedy wyraz był wypowiadany tym samym głosem. Przeprowadzone badanie wykazało również, że ani biegła znajomość języka angielskiego, ani schematy akcentowe nie miały wpływu na efekt torowania.
    Źródło:
    Białostockie Archiwum Językowe; 2013, 13; 67-81
    1641-6961
    Pojawia się w:
    Białostockie Archiwum Językowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ kondycjonowania na kiełkowanie i wigor nasion bratka ogrodowego (Viola x wittrockiana Gams.)
    The effect of priming on germination and vigour of pansy (Viola x wittrockiana Gams.) seeds
    Autorzy:
    Dorna, H.
    Li, W.
    Szopińska, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/11542861.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    priming
    germination
    vigor
    seed
    pansy
    Viola x wittrockiana
    germination capacity
    Opis:
    Porównywano wpływ trzech metod kondycjonowania: hydrokondycjonowania, kondycjonowania w solach mineralnych oraz osmokondycjonowania na kiełkowanie i wigor nasion fiołka ogrodowego w temperaturze 20, 30 i 35°C. Nasiona hydrokondycjonowano w ograniczonej ilości wody (600 i 700 μl H2O·g nasion-1, 2, 3 lub 4 dni), kondycjonowano w roztworze KNO3 (-1.5 MPa, 5 dni) oraz osmokondycjonowano w roztworach glikolu polietylenowego (-1,0, -1,25 lub -1,5 MPa PEG 8000, 7 dni) w temperaturze 15 lub 20°C. Oceniano kiełkowanie i wigor nasion niekondycjonowanych i kondycjonowanych. Na ogól hydro-kondycjonowanie negatywnie wpływało na szybkość kiełkowania, procent kiełkujących nasion oraz zdolność kiełkowania. Kondycjonowanie w roztworze KNO3 przyśpieszyło kiełkowanie nasion w temperaturze 20, 30 i 35°C, ale nie miało wpływu na procent nasion kiełkujących i zdolność kiełkowania. Osmokondycjonowanie nasion w roztworze PEG o potencjale osmotycznym -1.0 MPa w temperaturze 20°C nie tylko znacząco poprawiaáo wskaźniki wigoru w temperaturze 20, 30 i 35°C, ale również najkorzystniej z zastosowanych metod wpáywaáo na procent nasion kiełkujących w temperaturze 30 i 35°C i istotnie zwiększyło zdolność kiełkowania nasion w temperaturze 20 i 30°C.
    Three seed priming techniques: hydropriming, halopriming and osmopriming, were compared for their effects on germination and vigour of pansy (Viola × wittrockiana Gams.) seeds at 20°C, 30°C and 35°C. Seeds were hydroprimed in the restricted volumes of water (600 and 700 μl H2O·g seed-1, 2, 3 or 4 days), haloprimed in KNO3 solution (-1.5 MPa, 5 days), and osmoprimed in polyethylene glycol solutions (-1.0, -1.25 or -1.5 MPa PEG 8000, 7 days) at 15°C or 20°C. Seed germination and vigour tests were performed for untreated and primed seeds. Generally, hydropriming negatively affected the speed of germination, the percentage of germinating seeds and germination capacity. Halopriming accelerated seed germination at 20°C, 30°C and 35°C but did not influence the percentage of germinating seeds and germination capacity. Osmopriming of seeds in PEG solution of osmotic potential –1.0 MPa at 20°C not only improved germination rates at 20°C, 30°C, and 35°C to the highest extent, but also increased percentage of germinating seeds at 30°C and 35°C most effectively and positively affected seed germination capacity at 20°C and 30°C.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2014, 13, 6; 15-29
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stimulation of Plant Growth through Interactions of Bacteria and Protozoa: Testing the Auxiliary Microbial Loop Hypothesis
    Autorzy:
    Bonkowski, Michael
    Clarholm, Marianne
    Powiązania:
    https://bibliotekanauki.pl/articles/763461.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Protozoa, bacteria, microbial loop, plant growth, priming effect, rhizosphere ecology
    Opis:
    By feeding on bacterial biomass protozoa play an acknowledged role in the liberation of nutrients in the plant rhizosphere. In addition there are suggestions that plants have mechanisms working through changes in root architecture and initiation of active release from soil organic matter, which are used to improve uptake and recirculation of nutrients in the ecosystem. All processes are carried out on a local scale in soil with roots, bacteria and protozoa interacting. The many actors and the small scale of interactions make experimentation difficult. We discuss mistakes, pit falls and misinterpretations and provide suggestions for improvement. Recent methodological progress has opened new exciting avenues for protozoan research. New techniques have already helped to reveal protozoan regulation of cooperation as well as conflict in bacterial communities. These mechanisms in turn affect bacterial functioning and target molecular control points in rhizosphere food webs in relation to plants. Integrating nutritional and regulatory aspects into new concepts of protozoan functioning in soil is a challenging frontier in protozoology.
    Źródło:
    Acta Protozoologica; 2012, 51, 3
    1689-0027
    Pojawia się w:
    Acta Protozoologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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