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    Wyświetlanie 1-3 z 3
    Tytuł:
    A new way of dissemination in Anagallis arvensis L. [Primulaceae]
    Autorzy:
    Drobnik, J
    Bacler, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/56559.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    weed
    Anagallis arvensis
    Primulaceae
    botany
    dissemination
    Opis:
    Anagallis arvensis L. fruits are globose pyxides. They contain a unique globose columella with 20-30 seeds on its surface. In ripe, open fruits the ball-shaped columella detaches easily and becomes a unique diaspore, which can roll on the ground. This way of dissemination has not been described so far neither in Anagallis nor in other Primulaceae.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2007, 76, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphological differentiation of Primula veris L. pollen from natural and cultivated populations
    Autorzy:
    Morozowska, M
    Idzikowska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/58673.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    statistical analysis
    Primulaceae
    natural population
    cultivated population
    pollen morphology
    Primula veris
    morphological differentiation
    Opis:
    Micromorphological characterisation and the comparative statistical analysis of the size of Primula veris L. pollen grains collected in three natural and three cultivated populations were done. Observations were carried out with SEM. The obtained measurements were analysed with the use of one-way ANOVA, Kruskal-Wallis Test and the Student-t Test. Pollen grains from long-styled ('pin') flower-morphs were mainly 6 colpate and from shortstyled ('thrum') flower-morphs 8 colpate. Colpi of some grains from 'thrum' flowers were 'sinuous' and 'circular', and they incised into the apocolpium zone. Ornamentation of 'pin' pollen grains was microreticulate, with lumina up to 0.8 μm wide, and for pollen grains from 'thrum' flowers was reticulate and eureticulate with lumina 1.1-1.7 μm wide. In lumina of mesocolpium area some free columellae were observed. Pollen grains from 'thrum' flower-morphs were more variable in size, both in natural and in cultivated populations, than grains from 'pin' flower-morphs. The differences in mean length (P) and breadth (E) of pollen grains from 'thrum' flowers collected in cultivated populations were statistically important (FP = 3.154 for the critical F005 = 3.098; K-We = 7.469 for the critical Test value α=005 = 5.991). Pollen grains from 'thrum' flowers were bigger when coming from plants growing in natural populations (tE = 2.784 for the critical Test value α=005 = 2.001).
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2004, 73, 3
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Genetic variation of cowslip [Primula veris L.] populations [West Poland]
    Autorzy:
    Morozowska, M
    Krzakowa, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/57550.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Primulaceae
    Polish population
    botany
    Primula veris
    allozyme
    gene flow
    Primula
    genetic differentiation
    Opis:
    Genetic variation of twelve Polish populations of Primula veris L. from western Poland was investigated in respect of six enzyme systems: 6-phosphogluconate dehydrogenase (6PGD), diaphorase (DIA), menadione reductase (MNR), formate dehydrogenase (FDH), isocitrate dehydrogenase (IDH) and glutamate oxaloacetate transaminase (GOT). Only two of them (6PGD and DIA) were polymorphic and all populations were compared according to four loci and eight alleles. For 6PGD only one out of the two detected loci (locus 6PGD-2) was polymorphic and consisted of three alleles a, b and c. For DIA each of two detected loci had two alleles. For 6PGD-2 one population was monomorphic and four populations were monomorphic for DIA-1 and DIA-2. The rest of the populations were polymorphic with low frequency of heterozygotes. The low heterozygosity level, found in the examined populations, was confirmed by high values of the fixation index (F). The level of genetic differentiation among GST populations specified for each polymorphic loci, was equal to 0.045 for 6PGD-2 and had the value of 0.078 for DIA-2 and 0.186 for DIA-1. Nm value for polymorphic loci was 1.10 for DIA-1 and 2.94 for DIA-2, and for 6PGD-2 was 5.33, what indicates some gene flow between the examined populations. The dendrogram constructed on the basis of genotype frequencies showed that the populations were divided into two groups, however the most southern population No. 2 was clearly similar to the northern population No. 8.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2003, 72, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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