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    Wyświetlanie 1-6 z 6
    Tytuł:
    Przyrost i wzrost nadziemnej i podziemnej czesci podrostow jodlowych
    Autorzy:
    Skrzyszewski, J.
    Szczygiel, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/813975.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    jodla pospolita
    wzrost roslin
    hodowla lasu
    Abies alba
    podrost
    lesnictwo
    system korzeniowy
    drzewa lesne
    Źródło:
    Sylwan; 2002, 146, 06; 41-49
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza porownawcza nadziemnej i podziemnej czesci podrostow jodlowych wzrastajacych w roznych warunkach oswietlenia
    Autorzy:
    Skrzyszewski, J.
    Gomolka, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/824347.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    wzrost roslin
    czynniki srodowiska
    korony drzew
    hodowla lasu
    swiatlo
    cechy morfologiczne
    podrost
    dynamika wzrostu
    lesnictwo
    system korzeniowy
    jodla
    drzewa lesne
    Źródło:
    Sylwan; 1998, 142, 01; 83-91
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rozwój korzeni grochu zwyczajnego (Pisum sativum L.) w warunkach stresu glinowego i silnego zakwaszenia środowiska
    Development of pea (Pisum sativum L.) roots under aluminium stress conditions and strong acidity of medium
    Autorzy:
    Weryszko-Chmielewska, E.
    Chwil, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/794187.pdf
    Data publikacji:
    1998
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    uprawa roslin
    groch zwyczajny
    Pisum sativum
    system korzeniowy
    tempo wzrostu
    wzrost roslin
    budowa anatomiczna
    glin
    stres glinowy
    stres roslin
    zakwaszenie gleby
    stopien zakwaszenia
    Opis:
    Roots of pea cv. “Cukrowy Iłówiecki” were studied in water cultures using AlCl₃ in following doses: 0, 3, 6, 27 mg Al/dm³ medium (3-weeks course) as well as 0, 6, 27 g Al/dm³ medium (1-week course). Root length measurements were carried out in several terms. There were compared the anatomical structures of top and proximal root zones in a light microscope. The surface of a cap and epidermis were investigated in a scanning electron microscope. Aluminium doses inhibited root elongative growth proportional to the concentrations applied. Root thickness significantly increased at the highest Al levels. Deep outer tissue destructions as well as inner structure distempers like: hypertrophv and cell damage in various root regions were observed.
    Źródło:
    Zeszyty Problemowe Postępów Nauk Rolniczych; 1998, 456
    0084-5477
    Pojawia się w:
    Zeszyty Problemowe Postępów Nauk Rolniczych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wplyw zageszczenia gleby w warstwie podornej na wzrost pszenicy w doswiadczeniu fitotronowym
    Autorzy:
    Lipiec, J
    Nosalewicz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402581.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    pszenica
    wzrost roslin
    system korzeniowy
    gleby
    gestosc gleby
    badania fitotronowe
    komory fitotronowe
    warstwa podorna
    zageszczenie gleb
    wheat
    plant growth
    root system
    soil
    soil density
    phytotron research
    growth chamber
    subsoil
    soil compaction
    Źródło:
    Acta Agrophysica; 2001, 53; 101-107
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ zagęszczenia sadzonek buka zwyczajnego w pojemnikach na jego cechy morfologiczne
    The influence of seedling density in containers on morphological characteristics of European beech
    Autorzy:
    Wrzesiński, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1311365.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    szkolkarstwo lesne
    szkolki lesne
    szkolki kontenerowe
    kontenery typu Hiko
    sadzonki
    zageszczenie
    buk zwyczajny
    Fagus sylvatica
    wzrost roslin
    system korzeniowy
    cechy morfologiczne
    seedling density
    seedling size
    shoot height
    seedling root system
    container type
    container nursery
    Opis:
    This study examines the influence on growth parameters, in particular the morphological features of the root system, of 1-year-old European beech seedlings cultivated in containers with two different densities. The experiment was conducted in the container nursery in Skierdy (Forest District of Jabłonna) in spring 2011. After 10 months of cultivation in Hiko polyethylene containers, above- and below-ground parts of the seedlings were measured. The measurements of the root system were conducted with a scanner and the WinRHIZO software. No influence due to the seedling density on either shoot height or thickness was observed, but instead the research showed that different seedling densities affected the development of root systems. The mean root thickness and dry mass of the European beech seedlings were significantly higher at the lower density. The influence of seedling density on the development of root mass deserves special attention as it is the most important factor affecting future growth of the seedlings during cultivation. This tendency also suggests that the amount of nutrients allocated to shoot development may be higher in order to improve the efficiency of photosynthesis. At both densities, differences in biomass accumulation affected the root-toshoot ratio. In seedlings cultivated at the lower density, the increased dry root matter of the seedlings resulted in a significant increase in the root-to-shoot ratio. This may cause a potential growth advantage of these seedlings after they are planted and may thus result in a more productive cultivation.
    Źródło:
    Leśne Prace Badawcze; 2015, 76, 3; 304-310
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wplyw zlokalizowanego stresu tlenowego w glebie na rozwoj korzeni i czesci nadziemnych kukurydzy [ modelowe badania rizotronowe ]
    Effect of localized soil oxygen stress on root and shoot development in maize ( a model rhizotrone study)
    Autorzy:
    Bennicelli, R P
    Powiązania:
    https://bibliotekanauki.pl/articles/1628361.pdf
    Data publikacji:
    1994
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    agrofizyka
    gleby
    kukurydza
    system korzeniowy
    wzrost roslin
    badania modelowe
    badania rizotronowe
    dynamika rozwoju
    powietrze glebowe
    aeracja
    stres tlenowy
    agrophysics
    soil
    maize
    root system
    plant growth
    model research
    development dynamics
    soil air
    aeration
    oxygen stress
    Opis:
    The aim of the study was to test the usefulness of split rhizotrone technique to investigate the effect of localized soil anoxia on root and shoot developement, using maize as a test plant. The experiment was performed in 6 split rhizotrons enabling differentiation of soil aeration status in each half of the rhizotron by blowing nitrogen or air through them. The rhizotrone consists of two parts (each 16.6 dm3 in volume) inclined with an angle 60°. Each part is constructed of 1 mm thick stainless steel plate with a glass inner wall for root observation and has dimensions 84 cm x 40.5 cm x 5.0 cm. The rhizotrons were filled in with a brown loess soil material (Eutric Camhisol) from Ap horizon (from Eli/6wka, near Lublin). Maize seedlings with the roots splitted between the rhizotrone halves (eukivars KLG 2210 and DEA) were used in the experiments. Until the stress period the soil moisture tension of 20-80 kPa provided good water and air conditions. At a stage of 8 leaves three treatments were applied for a period of 7 days; an oxic control (P/P), a localized anoxia with 50% of the roots in nitrogen treated part (P/A), and a complete anoxia (A/A) with gas nitrogen in both parts. During the stress period diurnal elongation rates of primary roots (by marking positions of the tips each day) as well as distribution of two indicators of soil oxygenation status with depth viz. of oxygen diffusion rate (ODR) and of redox potential (Eh) in soil were measured. Shoot elongation rates were monitored with a potentiometer attached to the youngest leaf. Microscopic photographs of cross- sections of the caps and of apical meristems of primary roots at 400 magnification were made to show the changes in their anatomy due to anoxia. Chemical analysis of the shoots was performed after the stress period. For each cultivar the experiment was repeated three times. The investigations performed allowed the following conclusions to be drown out: 1. The split rhizotrone was shown to be a useful technique to study behaviour of the primary maize roots under localized anoxia conditions. 2. The ODR and Eh distribution with depth showed deterioration of oxygenation status (drop of ODR from control values above 100 |µg m-2 s-1 to the level 30 µg m-2 s-1, decrease of Eh from control values above 550 mV to the level, 300 mV) due to replacement of the soil air with gaseous nitrogen. 3. Root elongation rates under anoxic conditions (both under complete - A/A, and localized - A/P anoxia) were on the level of about 50% of the controle (P/P) during first 4 days and decreased practically to zero by the end of the stress period. In turn, the oxic part of the rhizotrone combined with localized anoxia treatment of the same plant (P/A) exhibited compensation effect and was characterized by stimulation of the root elongation rate up to 80%. This effect was especially distinct after 2-5 days of the stress duration and then tended to decrease. 4Distribution of the root mass in depth under anoxic treatments was characterized by concentration of about 80% of the root mass within first 10 cm of the soil. 5.Microscopic photographs of the root tips showed, under anoxic conditions, shorter meristematic zone, smaller number of mitosis, beginning of aerenchyma formation and dying of the cells at a distance of 1 mm from the root cap. 6.The shoots responded to applying anoxia to both rhizotrone parts by 20% reduction of the growth rate. 7.Both root and shoot elongation rates were correlated also with the temperature. 8.Oxygen deficiency in soil resulted in an increase of exchangeable manganese, what was reflected by its increased concentration in the maize shoots.
    Źródło:
    Acta Agrophysica; 1994, 03; 3-72
    1234-4125
    Pojawia się w:
    Acta Agrophysica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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