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    Wyświetlanie 1-13 z 13
    Tytuł:
    Assessing Positive Posttraumatic Changes Among Professionals Working With Trauma Victims: The Secondary Posttraumatic Growth Inventory
    Autorzy:
    Ogińska-Bulik, Nina
    Juczyński, Zygfryd
    Powiązania:
    https://bibliotekanauki.pl/articles/2124233.pdf
    Data publikacji:
    2022-06-13
    Wydawca:
    Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
    Tematy:
    consequences of trauma
    secondary posttraumatic growth
    Secondary Posttraumatic Growth Inventory
    psychometric properties
    professionals working with trauma victims
    Opis:
    By providing constant help to trauma victims, the helpers themselves run the risk of secondary traumatization. As a rule, research focuses on the negative consequences of secondary trauma. Meanwhile, there are also positive changes in the form of Secondary Posttraumatic Growth (SPTG). The present study describes the design and testing of a new tool for measuring SPTG. Thirty items were presented to employees from five different professions constantly working with trauma victims (N = 580). A 4-factor solution (PCA) turned out to be clear and unambiguously interpretable. After excluding items based on their component loading and redundancy, the tool was pared down to 12 items. A separate sample used in confirmatory factor analysis (CFA) yielded good fit indexes. The four dimensions were given the following designations: 1. New challenges and an increase in professional competences, 2. Increase in spiritual experiences and a greater sense of responsibility for others, 3. Greater confidence in oneself and appreciating life, 4. Increased acceptance and actions for others. Cronbach’s alpha was .90. The inventory demonstrated high stability, as indicated by the two-month test–retest stability value (.78). The theoretical validity was estimated by comparing SPTGI scores with other measures which should be associated with secondary positive changes. The SPTGI is a new, reliable, and valid instrument for measuring positive posttraumatic changes among professionals exposed to secondary trauma. It can be useful in scientific research and in clinical practice.
    Źródło:
    Roczniki Psychologiczne; 2022, 25, 2; 99-119
    1507-7888
    Pojawia się w:
    Roczniki Psychologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Negatywne i pozytywne konsekwencje wtórnej ekspozycji na traumę wśród pielęgniarek
    Negative and positive effects of secondary exposure to trauma among nurses
    Autorzy:
    Ogińska-Bulik, Nina
    Powiązania:
    https://bibliotekanauki.pl/articles/2176262.pdf
    Data publikacji:
    2021-06
    Wydawca:
    Uniwersytet Jagielloński. Collegium Medicum
    Tematy:
    ekspozycja na wtórną traumę
    wtórny stres
    wtórny wzrost
    obciążenie pracą
    pielęgniarki
    exposure to secondary trauma
    secondary stress
    secondary growth
    workload
    nurses
    Opis:
    Cel. Celem podjętych badań było ustalenie nasilenia wtórnego stresu traumatycznego i wtórnego wzrostu po traumie oraz ich powiązań z obciążeniem pracą wśród pielęgniarek eksponowanych na wtórną traumę. Grupa badana i metody. Do analizy włączono wyniki uzyskane od 281 pielęgniarek narażonych na wtórną traumę. Wiek badanych mieścił się w zakresie 20-65 lat (M = 42,62, SD = 11,43). W badaniach wykorzystano ankietę, Inwentarz Wtórnego Stresu Traumatycznego oraz Inwentarz Wtórnego Wzrostu Potraumatycznego. Wyniki. Uzyskane wyniki badań wskazały na wysokie nasilenie wtórnego stresu i umiarkowane nasilenie wtórnego wzrostu potraumatycznego w badanej grupie pielęgniarek. Wśród uwzględnionych trzech wskaźników obciążenia pracą zwłaszcza liczba godzin pracy w tygodniu przeznaczana na pomoc pacjentom w istotny sposób wiązała się ujemnie z wtórnym stresem i dodatnio z wtórnym wzrostem - pełniąc także rolę predyktora tych zmiennych. Wnioski. Duża liczba godzin pracy z pacjentami zdaje się pełnić rolę chroniącą pielęgniarki przed rozwojem negatywnych i sprzyjać występowaniu pozytywnych konsekwencji wtórnej ekspozycji na traumę. Słowa kluczowe: ekspozycja na wtórną traumę, wtórny stres, wtórny wzrost, obciążenie pracą, pielęgniarki
    Aim. The aim of the undertaken research was to determine the severity of secondary traumatic stress and secondary posttraumatic growth and their links with workload among nurses exposed to secondary trauma. Study group and methods. The analysis included the results obtained from 281 nurses exposed to secondary trauma. The age of the respondents ranged from 20 to 65 years (M = 42.62, SD = 11.43). The study used a survey, as well as the Secondary Traumatic Stress Inventory and the Secondary Posttraumatic Growth Inventory. Results. The obtained results indicated a high intensity of secondary traumatic stress and a moderate intensity of secondary growth after trauma in the studied group of nurses. Among the three workload indices included, the number of working hours per week devoted to helping patients is significantly associated with secondary stress – negatively and secondary growth – positively, also acting as a predictor of these variables. Conclusions. A large number of hours of work with patients seems to play a role that protects nurses from the development of negative and favors the occurrence of positive consequences of secondary exposure to trauma.
    Źródło:
    Sztuka Leczenia; 2021, 36, 1; 9-21
    1234-7175
    1898-2026
    Pojawia się w:
    Sztuka Leczenia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    From negative to positive effects of secondary exposure to trauma – the mediating role of cognitive coping strategies
    Autorzy:
    Ogińska-Bulik, Nina
    Michalska, Paulina
    Juczyński, Zygfryd
    Powiązania:
    https://bibliotekanauki.pl/articles/28410620.pdf
    Data publikacji:
    2023-12-29
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    stress
    professionals
    exposure to secondary trauma
    secondary posttraumatic stress
    secondary posttraumatic growth
    cognitive coping strategies
    Opis:
    Background Professionals working with trauma victims can experience both negative and positive effects following exposure to secondary trauma. The aim of the study was to determine the relationship between secondary traumatic stress (STS), secondary posttraumatic growth (SPTG) and cognitive coping strategies and to establish the mediating role of cognitive coping strategies in the relationship between STS and SPTG. Material and Methods A group of 500 professionals working with trauma survivors were surveyed. The Secondary Traumatic Stress Inventory, the Secondary Posttraumatic Growth Inventory and the Cognitive Processing of Trauma Scale was used. Results The results indicated that 29% of professionals demonstrate a high intensity of STS, and nearly 34% exhibit a high level of SPTG. Denial and regret were positively correlated with STS; positive cognitive restructuring, resolution/acceptance and downward comparison were positively related to SPTG. Two cognitive coping strategies, i.e., positive cognitive restructuring and downward comparison, were found to act as mediators in the relationship between STS and SPTG. Conclusions Understanding the effects of secondary exposure to trauma and the coping responses of professionals working with trauma survivors will support the development of prevention and intervention actions aimed at protecting them from the deleterious impact of exposure to secondary trauma at work and promoting secondary posttraumatic growth.
    Źródło:
    Medycyna Pracy. Workers’ Health and Safety; 2023, 74, 6; 449-460
    0465-5893
    2353-1339
    Pojawia się w:
    Medycyna Pracy. Workers’ Health and Safety
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Predictors of the Consequences of Secondary Exposure to Trauma Among Professionals Working With Trauma Victims
    Autorzy:
    Juczyński, Zygfryd
    Ogińska-Bulik, Nina
    Powiązania:
    https://bibliotekanauki.pl/articles/31343460.pdf
    Data publikacji:
    2023
    Wydawca:
    Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
    Tematy:
    secondary traumatic stress
    secondary posttraumatic growth
    core beliefs
    cognitive processing of trauma
    discriminant function analysis
    Opis:
    Helping those who have experienced trauma exposes the helpers to secondary traumatization. The mechanisms of its development are most often explained using the cognitive model of trauma processing. The aim of the research is to determine how disturbances of core beliefs and cognitive processing in the form of coping with stress are associated with secondary traumatic stress (STS) and secondary posttraumatic growth (SPTG). The study was conducted among psychologists and social workers (N = 240), working with people after traumatic experiences. Four standardized measurement tools were used. Based on the differential diagnosis, four types of consequences were identified. Discriminant analysis was used to establish the optimal configuration of predictors explaining the differences between the four subgroups. Two significant discriminant functions were significant, each identifies different beliefs and coping strategies. The first is associated with the disruptions of core beliefs about the world and cognitive processing in the form of a non-adaptive strategy; the second—with disturbed beliefs about oneself and adaptation strategies. Our results show a much greater exposure of social workers to the negative consequences of secondary traumatic stress disorder. A system of constant monitoring should be introduced, and the principles of prevention and therapy should be implemented.
    Źródło:
    Roczniki Psychologiczne; 2023, 26, 3; 241-260
    1507-7888
    Pojawia się w:
    Roczniki Psychologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The mediating role of job satisfaction in the relationship between social support and the consequences of secondary exposure to trauma among medical providers working with trauma victims
    Autorzy:
    Gurowiec, Piotr Jerzy
    Ogińska-Bulik, Nina
    Michalska, Paulina
    Powiązania:
    https://bibliotekanauki.pl/articles/21375400.pdf
    Data publikacji:
    2023-11-13
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    social support
    job satisfaction
    medical providers
    medical providers working with trauma victims
    secondary traumatic stress
    secondary posttraumatic growth
    Opis:
    Objectives: Medical providers working with trauma survivors are exposed to the negative and positive effects of secondary trauma, both of which are affected by social support and job satisfaction. The aim of this study was to determine the mediating role of job satisfaction in the relationship between social support and the negative and positive effects of secondary exposure to trauma among medical personnel. The negative indicator of such exposure was secondary traumatic stress (STS), while the positive indicator was secondary posttraumatic growth (SPTG). Material and Methods: The analyses included 419 medical providers working with trauma victims (201 paramedics and 218 nurses). Data was collected with the Secondary Traumatic Stress Inventory, Secondary Posttraumatic Growth Inventory, Social Support Scale, Work Satisfaction Scale, and survey. Mediation analyses were applied to assess relationships between variables. Results: The mediation analyses indicated that job satisfaction mediates (mainly partly) the relationship between social support and STS and SPTG. This may indicate that both social support and job satisfaction act as significant predictors of the negative and positive effects of secondary exposure to trauma. Conclusions: As a friendly and mutually-supportive environment can increase job satisfaction, reducing the risk of secondary traumatic stress and promoting positive posttraumatic changes, it is important to increase social support and job satisfaction among medical providers exposed to secondary trauma.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2023, 36, 4; 505-516
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Budowa pni drzew jednoliściennych
    Stem structure of monocotyledonous trees
    Autorzy:
    Jura-Morawiec, J.
    Tulik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1009031.pdf
    Data publikacji:
    2010
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    dendrologia
    jednoliscienne
    drzewa
    Asparagaceae
    Asphodelaceae
    Laxmanniaceae
    Ruscaceae
    Arecaceae
    Pandanaceae
    pnie drzew
    przyrost drzew
    przyrosty wtorne
    anomalous cambium
    diffuse secondary growth
    wood
    monocotyledonous trees
    Opis:
    This paper describes process of secondary stem growth in monocotyledonous trees realized by anomalous cambium or diffuse secondary growth. The anatomical structure of stem wood and external covering tissues are also described.
    Źródło:
    Sylwan; 2010, 154, 11; 755-763
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Callus Culture of common thyme (Thymus vulgaris L.)
    Autorzy:
    Pawelec, Krzysztof
    Kulpa, Danuta
    Siwek, Hanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1179591.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    growth regulator
    in vitro culture
    micropropagation
    secondary metabolite
    Opis:
    The aim of the study was to investigate the influence of plant growth regulators on callus culture of common thyme (Thymus vulgaris L.) and the possibility of using such callus cultures to obtain rosmarinic acid. The explants used to initiate shoot culture were the seeds of common thyme. The seeds were individually placed into test tubes with MS culture media of macro- and micro-element content according to Murashige and Skoog (1962). For the purpose of initiation of cultures, leaves dissected along the vascular bundle were used. The leaves were placed on MS medium with the addition of BAP in combination with NAA in a concentration of 3 and 5 mg•dm-3. Propagation of callus cultures was conducted with the use of fragments of callus tissue placed on MS media supplemented with BAP used separately in a concentration of 3 mg•dm-3, and in combination with NAA (1, 2, 3 mg•dm-3) and 2,4-D in a concentration of 0.5, 1 or 1.5 mg•dm-3 respectively. In each stage of the experiment, explants placed on MS media without the addition of plant growth regulators were the control. It was found that initiation of common thyme cultures should be conducted on MS media without plant growth regulators. For the purpose of initiation of callus culture of common thyme, the optimal culture medium was MS with the addition of 3 mg•dm-3 BAP and NAA. Propagation of callus tissue of common thyme should be conducted on culture media supplemented with 3 mg•dm-3 BAP used in combination with 1 mg•dm-3 NAA. It was observed that the mass of the propagated callus tissue decreased with an increase of NAA content.
    Źródło:
    World Scientific News; 2017, 74; 94-105
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of different hormonal treatments on growth parameters and secondary metabolite production in organ culture of Hyssopus officinalis L.
    Autorzy:
    Shoja, H.M.
    Shishavan, H.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096354.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    growth parameters
    Hyssopus officinalis
    photosynthetic pigment
    secondary metabolite
    thidiazuron
    Opis:
    Hyssopus officinalis L. is a medicinal plant containing valuable phytochemicals and is used extensively in the pharmaceutical industry. As this plant naturally contains low levels of these metabolites, plant cell and tissue culture technologies are used to produce them in large volumes. The present study aimed first to evaluate the effects of different types of cytokinins, including benzyl adenine (BA), kinetin (KIN), and thidiazuron (TDZ), at 1 ppm concentration in the culture medium on growth parameters and production of secondary metabolites and photosynthetic pigments in organ culture of H. officinalis; in the second step, the study investigated the effect of different concentrations (0, 0.2, 1, 1.5, and 2 ppm) of the most effective type of cytokinin. The results showed that TDZ was the optimal type of growth regulator compared to BA and KIN as it showed a positive influence on the studied traits; furthermore, its highest concentration of 2 ppm in culture medium was determined to be the best one that enabled the highest production of secondary metabolites and photosynthetic pigments. We conclude that the presence of growth regulators can strongly influence the growth and development of plants in tissue culture conditions.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 1; 33-41
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Secondary speech therapy prophylaxis aimed at children with low birth weight – a part of research
    Autorzy:
    Gacka, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/930560.pdf
    Data publikacji:
    2020-12-15
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    secondary speech therapy prophylaxis
    screening tests
    low birth weight
    preterm birth
    intrauterine foetal growth retardation
    Opis:
    In the paper, the results of the study of secondary speech therapy prophylaxis aimed at children with low birth weight (preterm babies and babies born at term but with intrauterine growth retardation). The study group consisted of 187 children with a birth weight below 2500 g. Low birth weight is one of the risk factors for various developmental disorders, including disorders of the development of language communication. That is why early identification of the first symptoms of language acquisition (speech development) disorders is so important. The aim of the undertaken research was to analyse the activities in the field of secondary speech therapy prophylaxis, covering this risk group.
    Źródło:
    Interdyscyplinarne Konteksty Pedagogiki Specjalnej; 2020, 30; 109-123
    2300-391X
    Pojawia się w:
    Interdyscyplinarne Konteksty Pedagogiki Specjalnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Medicinal and aromatic plants production under salt stress. A review
    Produkcja roślin leczniczych oraz aromatycznych w warunkach stresu wywołanego zasoleniem (przegląd)
    Autorzy:
    Said-Al Ahl, H.A.H.
    Omer, E.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/71835.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Włókien Naturalnych i Roślin Zielarskich
    Tematy:
    medicinal plant
    aromatic plant
    plant production
    salt stress
    proline
    plant growth
    plant development
    secondary product
    salt tolerance
    Opis:
    Salinization of soils or waters is one of the world’s most serious environmental problems in agriculture. It is necessary to determine the environmental factors under which medicinal and aromatic plants give higher yields and better quality. The problem of salinity is characterized by an excess of inorganic salts and is common in the arid and semi-arid lands, where it has been naturally formed under the prevailing climatic conditions and due to higher rates of evapotranspiration and lack of leaching water. Although more frequent in arid lands, salt-affected soils are also present in areas where salinity is caused by poor quality of irrigation water. Saline soil induces physiological and metabolic disturbances in plants, affecting development, growth, yield, and quality of plants. Plants affects adversely as a result of salinity, seed germination, survival percentage, morphological characteristics, development and yield and its components. In general, salt stress decreases the photosynthesis and respiration rate of plants. Total carbohydrate, fatty acid and protein content were adversely affected due to salinity effect, but increased the level of amino acids, particularly proline. The content of some secondary plant products is significantly higher in plants grown under salt stress than in those cultivated in normal conditions. The salinity tolerance depends on the interaction between salinity and other environmental factors.
    Zasolenie gleb oraz wód jest jednym z najpoważniejszych problemów z zakresu ochrony roślin występujących w rolnictwie. Dlatego niezbędne jest określenie czynników środowiskowych wpływających na jakość, a także wysokość plonowania roślin leczniczych i aromatycznych. Zasolenie spowodowane obecnością nadmiaru nieorganicznych soli jest charakterystyczne dla suchych oraz półsuchych terenów powstałych w wyniku działania lokalnych warunków klimatycznych, braku ewapotranspiracji, jak również przenikania wody. Większy stopień zasolenia terenów suchych spotykany jest na obszarach, na których jakość wody jest niższa. Zasolenie gleby wpływa na fizjologię roślin, wywołując zaburzenia w metabolizmie, rozwoju, wzroście, plonowaniu oraz jakości. Zasolenie wpływa także negatywnie na zdolność kiełkowania nasion, wskaźnik przetrwania roślin, ich morfologię, wydajność oraz jakość plonu. Stres wywołany zasoleniem obniża zdolność rośliny do procesów fotosyntezy oraz procesów ich oddychania. Wynikiem tego jest obniżony poziom całkowitej zawartości węglowodanów, kwasów tłuszczowych oraz białek, a także wzrostu zawartości aminokwasów, w szczególności proliny. W hodowli roślin w warunkach stresu wywołanego zasoleniem podłoża zaobserwowano wzrost poziomu produkcji niektórych metabolitów wtórnych w porównaniu z uprawą w normalnych warunkach. Zdolność roślin do tolerancji zasolenia wynika z interakcji między czynnikami środowiskowymi a warunkami zasolenia.
    Źródło:
    Herba Polonica; 2011, 57, 2
    0018-0599
    Pojawia się w:
    Herba Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ВЕЛИЧИНА КОРРЕЛЯЦИОННОЙ СВЯЗИ МЕЖДУ СКОРОСТНО-СИЛОВЫМИ ПОКАЗАТЕЛЯМИ И ДИНАМИЧЕСКИМИ ПАРАМЕТРАМИ ФАЗ ОПОРНОЙ ЧАСТИ ПРЫЖКА В ДЛИНУ С РАЗБЕГА У ШКОЛЬНИЦ 11-17 ЛЕТ, НЕ ЗАНИМАЮЩИХСЯ СПОРТОМ
    Autorzy:
    Масловский, Е. А.
    Соболевски, К. З.
    Powiązania:
    https://bibliotekanauki.pl/articles/450686.pdf
    Data publikacji:
    2016
    Wydawca:
    Wyższa Szkoła Wychowania Fizycznego i Turystyki w Białymstoku
    Tematy:
    вектординамографический метод
    корреляционные связи
    динамические усилия в фазе постановки ноги
    динамические усилия в фазе амортизации
    динамические усилия в фазе вторичного нарастания усилия
    структура опорной части прыжка
    двигательные навыки.
    vector-dynamic method
    correlation connections
    dynamic efforts in the phase of foot position
    dynamic efforts in the phase of depreciation
    dynamic efforts in the phase of secondary growth of exertion
    structure of the pedestal part of jump
    motive skills
    Opis:
    В статье представлены закономерности возрастного развития скоростно-силовых показателей и динамических параметров фаз опорной части прыжка в длину с разбега и взаимосвязь между ними у школьниц 11-17 лет.
    The article presents patters of the age-related development of speed-power indicators and dynamic parameters of the phases of anchorage of running jump and the interrelation between them in 11-17 year-old schoolgirls.
    Źródło:
    Roczniki Naukowe Wyższej Szkoły Wychowania Fizycznego i Turystyki w Białymstoku; 2016, 3(17); 39-41 s.
    2081-1063
    Pojawia się w:
    Roczniki Naukowe Wyższej Szkoły Wychowania Fizycznego i Turystyki w Białymstoku
    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:
    Wood anatomy of ivy-hosting black alder (Alnus glutinosa Gaertn.)
    Autorzy:
    Yaman, B
    Powiązania:
    https://bibliotekanauki.pl/articles/41410.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    tree
    English ivy
    ivy
    Hedera helix
    ivy impact
    host tree
    secondary xylem
    growth
    wood
    anatomy
    black alder tree
    Alnus glutinosa
    qualitative property
    Opis:
    The study aims at investigating the impact of ivy (Hedera helix L.) on the growth and on some wood anatomical characteristics of black alder trees. Ivy-hosting and non-hosting black alder have a similar wood anatomy in terms of qualitative properties. However, in ivy-hosting trees tangential and radial diameter of vessels are narrower (p <0.001), and inter-vessel pits are smaller (p <0.01), whereas vessel frequency is higher (p<0.05) than those of non-hosting ones. The average maximum ray height is greater (p<0.05), and ray number mm-1 is lower (p < 0.001) than those of non-hosting individuals. In addition, the last ten years’ average radial growth has decreased 39.5% compared to that of non-hosting black alder.
    Źródło:
    Dendrobiology; 2009, 62; 41-45
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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