- Tytuł:
- Pollen morphology of Polish species of genus Rubus - Part I. Rubus gracilis
- Autorzy:
-
Wronska-Pilarek, D
Malinski, T.
Lira, J. - Powiązania:
- https://bibliotekanauki.pl/articles/41631.pdf
- Data publikacji:
- 2006
- Wydawca:
- Polska Akademia Nauk. Instytut Dendrologii PAN
- Tematy:
-
Rubus
Polish species
pollen morphology
Rubus gracilis
statistical analysis
intraspecific variability
pollen variability
locality - Opis:
- Pollen morphology and pollen variability of Rubus gracilis were studied. A total of 260 grains from 13 natural Polish localities were examined. Important characteristics include: a stretched bridge; a visible pore area and endopores; ectocolpi arranged regularly, more or less evenly spaced or, more rarely, joining one another in the apocolpium, long (79.3% length of the polar axis) and narrow; exine sculpture striate, distinct; striae and muri of equal width, rather narrow; striae usually running parallel to the polar axis, sometimes forming semicircles in the apocolpium zone; with distinct perforations. The size, outline and shape turned out to be poor criteria when identifying the species. A statistical analysis of 10 quantitative grain characteristics showed their little variability. The highest variability was found to occur in two traits connected with d (the distance between the apices of two ectocolpi). Statistical studies revealed no differences among the grains from the individual localities, likely the result of apomixis.
- Źródło:
-
Dendrobiology; 2006, 56; 69-77
1641-1307 - Pojawia się w:
- Dendrobiology
- Dostawca treści:
- Biblioteka Nauki
Artykuł