Pollen morphology of Polish species of genus Rubus - Part I. Rubus gracilis

• Autorzy: Wronska-Pilarek D , Malinski T. , Lira J.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Rubus; Polish species; pollen morphology; Rubus gracilis; statistical analysis; intraspecific variability; pollen variability; locality

• Wydawca: -
• Czasopismo: Dendrobiology
• Rocznik: 2006
• Tom: 56
• Opis fizyczny: p.69-77,fig.,ref.

Twórcy

autor

Wronska-Pilarek D

• August Cieszkowski Agricultural University, Wojska Polskiego 71d, 60-625 Poznan, Poland

autor

Malinski T.

autor

Lira J.

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