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Rescue of the critically endangered long-stalked pondweed (Potamogeton praelongus) in the Czech Republic
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SYSNO ASEP 0369742 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Rescue of the critically endangered long-stalked pondweed (Potamogeton praelongus) in the Czech Republic Author(s) Prausová, R. (CZ)
Janová, J. (CZ)
Adamec, Lubomír (BU-J) RID, ORCIDNumber of authors 3 Source Title Acta Biologica Slovenica - ISSN 1408-3671
Roč. 54, č. 1 (2011), 43-54Number of pages 12 s. Language eng - English Country SI - Slovenia Keywords population monitoring ; seed germination ; tissue culture Subject RIV EF - Botanics CEZ AV0Z60050516 - BU-J (2005-2011) Annotation Potamogeton praelongus occurs in the CR at only one natural site near Hradec Králové. A new artificial site in an nearby oxbow was selected in 2008. Similar micropopulations were introduced to backwater pools in the Protected Landscape Kokořínsko in 2003-2005. Monitoring micropopulations and habitat factors at P. praelongus sites, investigation of seed germination, and preparation of a sterile in-vitro culture for plant propagation are described here. Between 2008-2010, both micropopulations in the Orlice floodplain increased their size by three times annually. In 2010, plant stand areas of four micropopulations in the Kokořínsko region were 12-50 m2. The most effective treatment to break seed dormancy involved 2-h surface sterilisation in 5 % or 2.5 % NaClO solution proceeded by a period of desiccation. Scarification plays an important role in breaking seed dormancy, mainly physical dormancy. Using similar methods of NaClO sterilisation, an in-vitro culture was prepared. Workplace Institute of Botany Contact 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 Year of Publishing 2013
Number of the records: 1