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    Wyświetlanie 1-4 z 4
    Tytuł:
    Rooting of azalea shoot cuttings depending on the degree of lignification
    Autorzy:
    Nawrocka-Grzeskowiak, U
    Grzeskowiak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/41327.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    shoot anatomy
    rooting
    lignification
    propagation
    lignified cutting
    cutting
    azalea
    Ericaceae
    Rhododendron
    Opis:
    Relationship between the degree of cutting lignification and rooting ability was studied. Anatomical changes in cuttings were observed, too. The study involved azalea hybrids from groups: Gent, Rustica Flore Pleno, Occidentale and Knap Hill, which can be propagated vegetatively by shoot cuttings. The cuttings were apical parts of shoots, 7-10 cm long. They were collected at various stages of lignification. Rooting was performed in a greenhouse with controlled temperature of the rooting bed. Only the penetrating observation of mother plants allows to determine the best period of taking the cuttings. The cuttings were treated with a growth regulator, 0.5% IBA (indolebutyric acid), combined with Captan in talcum powder. Sand and peat (1:2) were used as a medium for rooting.
    Źródło:
    Dendrobiology; 2003, 49
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nutritional value of red clover (Trifolium pratense L.) and birdsfoot trefoil (Lotus corniculatus L.) harvested in different maturity stages
    Wartość pokarmowa koniczyny łąkowej (Trifolium pratense L.) i komonicy zwyczajnej (Lotus corniculatus L.) zbieranych w różnych fazach dojrzałości
    Autorzy:
    Wróbel, Barbara
    Zielewicz, Waldemar
    Powiązania:
    https://bibliotekanauki.pl/articles/336168.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
    Tematy:
    legumes
    protein
    structural carbohydrates
    lignification
    quality decline
    growth rate
    rośliny bobowate
    białko
    węglowodany strukturalne
    lignifikacja
    spadek jakości
    Opis:
    During the years 2014-2015, herbage samples of red clover (Trifolium pratense L.) variety Chlumecky and birdsfoot trefoil (Lotus corniculatus L.) variety Leo were harvested at weekly intervals on 9 occasions from late April to late June. Effects of legume plant species and date of harvest on crude protein (CP), water soluble carbohydrates (WSC), neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin (ADL) and dry matter digestibility (DDM) were studied. Regardless of the date of harvest birdsfoot trefoil contained more crude protein, NDF and ADF fraction than red clover. Red clover contained more WSC. Crude protein concentration and DDM declined and WSC, NDF, ADF and ADL increased with advancing maturity of both legume species. But the rate of NDF increase with maturity in red clover was slower.
    W latach 2014-2015, co tydzień, dziewięciokrotnie, od końca kwietnia do końca czerwca, pobierano próbki roślin dwóch gatunków: koniczyny łąkowej (Trifolium pratense L.) odmiany Chlumecky i komonicy zwyczajnej (Lotus corniculatus L.) odmiany Leo. Badano wpływ gatunku rośliny bobowatej i terminu zbioru na zawartość białka ogólnego (CP), cukrów rozpuszczalnych (WSC), neutralnego włókna detergentowego (NDF), kwaśnego włókna detergentowego (ADF), lignin (ADL) i strawność suchej masy (DDM). Niezależnie od terminu zbioru komonica zwyczajna zawierała więcej białka ogólnego oraz frakcji włókna NDF i ADF niż koniczyna łąkowa. Koniczyna łąkowa zawierała więcej cukrów rozpuszczalnych. Wraz z postępem faz rozwojowych obu gatunków roślin zawartość białka ogólnego i strawność suchej masy malała, a zawartość WSC, NDF, ADF i ADL rosła. Jednak tempo wzrostu zawartości NDF w koniczynie łąkowej było mniejsze.
    Źródło:
    Journal of Research and Applications in Agricultural Engineering; 2019, 64, 4; 14-19
    1642-686X
    2719-423X
    Pojawia się w:
    Journal of Research and Applications in Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Leaf architecture, lignification, and tensile strength during vegetative phase change in Zea mays
    Autorzy:
    Balsamo, R A
    Orkwiszewski, J.A.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/59251.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    leaf morphology
    lignification
    tensile strength
    vegetative phase
    plant development
    Zea mays
    morphological change
    physiological change
    plant anatomy
    histochemical analysis
    Opis:
    Background and Aims: Leaf morphology, anatomy, degree of lignification, and tensile strength were studied during vegetative phase change in an inbred line of Zea mays (OH43 x W23) to determine factors that influence mechanical properties during development. Methods: Tensometer, light microscopy, histochemistry. Key results: Mature leaf length increased linearly with plant development, peaked at leaves 7 and 8 (corresponding to the onset of the adult phase) and then declined. Leaf width was stable for leaves 1 through 3, increased to leaf 7, remained stable to leaf 10, and then declined through leaf 13. Lamina thickness was highest for leaf 1 and decreased throughout development. Leaf failure load to width ratio and failure load to thickness ratio increased with development suggesting that changes in leaf morphology during development do not entirely account for increases in failure load. Histochemical analyses revealed that leaf tensile strength correlates with percent lignification and the onset of anatomical adult features at various developmental stages. Conclusions: These data demonstrate that in Zea mays lignification of the midrib parenchyma and epidermis may be directly correlated with increased tensile strength associated with phase change from juvenility to adulthood. Failure load and resultant tensile strength values are primarily determined by the percent tissue lignification and the appearance of leaf architectural characters that are associated with the transition from the juvenile to the adult phase. Increased mechanical stability that occurs during the phase transition from juvenility to adulthood may signify a fundamental change in strategy for an individual plant from rapid growth (survival) to reproduction.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 181-188
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anatomical study on the developing pericarp of selected Rosa species (Rosaceae)
    Autorzy:
    Guzicka, M.
    Zielinski, J.
    Tomaszewski, D.
    Gawlak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/41015.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    plant anatomy
    developing pericarp
    pericarp
    structure
    wild plant
    rose
    Rosa
    Rosaceae
    SEM analysis
    CLSM zob.confocal laser scanning microscopy
    confocal laser scanning microscopy
    lignification
    achene
    Opis:
    Results of anatomical studies on the developing pericarp of selected wild roses are presented. Using SEM and CLSM, the changes in the pericarp structure of 5 species have been observed during its formation, from the flowering stage to fully ripe achenes. In the morphological development of the pericarp of Rosa species two main phases can be distinguished: the phase of intensive growth of the pericarp during which the fruit achieves its final shape and volume, and the subsequent phase of pericarp ripening when no significant morphological changes in the pericarp occur. Similarly, in the process of the anatomical development of the pericarp two phases are noticeable, however, during both stages, great internal changes proceed in the fruit. The first phase consists of intensive cell divisions and enlargement, gradual thickening of cell walls and formation of all pericarp layers. Due to these changes, the pericarp achieves its final anatomical structure. The second phase, involving the pericarp ripening, is manifested in the modification of cell walls, mainly by their quick thickening, but first of all by their lignification. The lignification of pericarp cell walls begins in the inner endocarp; it proceeds in the outer endocarp, later in mesocarp and finishes in the hypodermal cells of the exocarp. The epidermal cells remain alive the longest and their walls do not (or hardly) become lignified. The death of all cells finishes the pericarp ripening.
    Źródło:
    Dendrobiology; 2012, 68
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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