Differences in germination and seedling establishment of alien and native Impatiens species

0332085 - BÚ 2010 RIV CZ eng J - Journal Article
Perglová, Irena - Pergl, Jan - Skálová, Hana - Moravcová, Lenka - Jarošík, Vojtěch - Pyšek, Petr
Differences in germination and seedling establishment of alien and native Impatiens species.
Preslia. Roč. 81, č. 4 (2009), s. 357-375. ISSN 0032-7786. E-ISSN 0032-7786
R&D Projects: GA ČR GA206/07/0668; GA ČR GA206/09/0563; GA MŠMT LC06073; GA AV ČR IAA600050811
Institutional research plan: CEZ:AV0Z60050516
Keywords : plant invasions * seed * population dynamics
Subject RIV: EF - Botanics
Impact factor: 2.638, year: 2009
http://www.preslia.cz/P094Perglova.pdf

Seed and seedling traits of three congeneric alien species in Europe, differing in their region of origin, invasion status and history (Impatiens glandulifera, I. parviflora, I. capensis), were compared with the native I. noli-tangere in the laboratory and common garden experiments. Differences in the invasiveness of three alien species of balsams in the temperate zone of Central Europe can be attributed, at least in part, to their differing performances in the early stages of their life cycle. The short period of time required for seed stratification and the high seedling biomass of I. glandulifera might have increased its invasion potential compared to other Impatiens species occurring in the Czech Republic. The absence of I. capensis, a successful invader in several European countries, from the Czech flora may be due to a low propagule pressure.
Permanent Link: http://hdl.handle.net/11104/0177432