Počet záznamů: 1
Effects of fruit position on fruit mass and seed germination in the alien species Heracleum mantegazzianum (Apiaceae) and the implications for its invasion
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SYSNO ASEP 0025513 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Effects of fruit position on fruit mass and seed germination in the alien species Heracleum mantegazzianum (Apiaceae) and the implications for its invasion Překlad názvu Vliv pozice plodu invazního druhu Heracleum mantegazzianum na mateřské rostlině na jeho hmotnost a klíčivost Tvůrce(i) Moravcová, Lenka (BU-J) RID, ORCID
Perglová, Irena (BU-J) RID
Pyšek, Petr (BU-J) RID, ORCID
Jarošík, Vojtěch (BU-J)
Pergl, Jan (BU-J) RID, ORCIDZdroj.dok. Acta Oecologica-International Journal of Ecology. - : Elsevier - ISSN 1146-609X
Roč. 28, - (2005), s. 1-10Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova seed germination ; invasive species ; Heracleum mantegazzianum Vědní obor RIV EF - Botanika CEZ AV0Z60050516 - BU-J (2005-2011) Anotace Study of germination in an invasive alien Heracleum mantegazzianum showed that fruits from terminal inflorescences were heavier than those from satellites and branches, and those produced in the centre of an umbel were heavier than those from the margin. Mean percentage germination was 91%, varied among sites but was not affected by fruit position on a plant. Germination rate increased with fruit mass. Neither umbel size nor time of flowering had a significant effect on germination characteristics. At some sites there was a negative relationship between fruit mass and plant height. A combination of reproductive traits (high fecundity, high germination capacity, opportunistic behaviour associated with limited effect of fruit position on a plant on germination characteristics) contributes to this species ability to successfully invade new habitats. Pracoviště Botanický ústav Kontakt Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Rok sběru 2006
Počet záznamů: 1