Počet záznamů: 1
Seed bank of Littorella uniflora (L.) Asch. in the Czech Republic, Central Europe: does burial depth and sediment type influence seed germination?
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SYSNO ASEP 0475698 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Seed bank of Littorella uniflora (L.) Asch. in the Czech Republic, Central Europe: does burial depth and sediment type influence seed germination? Tvůrce(i) Kolář, J. (CZ)
Kučerová, Andrea (BU-J) RID, ORCID
Jakubec, J. (CZ)
Vymazal, J. (CZ)Zdroj.dok. Hydrobiologia. - : Springer - ISSN 0018-8158
Roč. 794, č. 1 (2017), s. 347-358Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Isoetids ; Fishpond eutrophication ; Summer drainage Vědní obor RIV EF - Botanika Obor OECD Plant sciences, botany Institucionální podpora BU-J - RVO:67985939 UT WOS 000401474400023 EID SCOPUS 85027852652 DOI 10.1007/s10750-017-3109-3 Anotace Littorella uniflora (Plantaginaceae) is a scarce and declining aquatic plant in Europe. Its population has been strongly reduced by changes in fishpond management (eutrophication) in the Czech Republic since the 1950s. The seed bank od Littorella uniflora was studied in both recent (n = 8) and historical localities (the last found from 1972 to 2000, n = 10). The effects of sediment type and burial depth on seed germination were tested using extracted seeds from two recent populations. The seeds were found in 60% of the historical localities, mostly in low densities (less than 6 seeds per 3.75 l of sediment), and also in 100% of the recent localities in various densities (8–1390 seeds per 3.75 l of sediment), however, low germination rates (0–13.3%) were estimated. The seeds germinated best on wet filter paper, followed by nutrient-rich fishpond sediment, but poorly on sand mixed with different substrates. Burial depth significantly affected seed germination. The seeds germinated only on the soil surface and at the depth of 1 cm but no seed germinated at the depth of 3 and 5 cm. Besides low water transparency, both high rate of sediment accumulation and the absence of summer drainage may endanger L. uniflora populations in fishponds. 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 2018
Počet záznamů: 1