Effect of mowing and fertilization on biomass and carbohydrate reserves of Molinia caerulea at two organizational levels

0365146 - BÚ 2012 RIV FR eng J - Journal Article
Bartoš, Michael - Janeček, Štěpán - Klimešová, Jitka
Effect of mowing and fertilization on biomass and carbohydrate reserves of Molinia caerulea at two organizational levels.
Acta Oecologica-International Journal of Ecology. Roč. 37, č. 4 (2011), 299-306. ISSN 1146-609X. E-ISSN 1873-6238
R&D Projects: GA ČR GA526/09/0963; GA ČR GA526/07/0808
Institutional research plan: CEZ:AV0Z60050516
Keywords : Apical dominance * Resprouting, * Clonal multiplication
Subject RIV: EF - Botanics
Impact factor: 1.570, year: 2011

We asked whether plant investment into current and future growth in the clonal grass Molinia caerulea, dominant in a species-rich meadow, expressed per shoot or per growth unit differs between a mown and an abandoned or fertilized meadow (mown and fertilized). As a measure of investments into current growth we used aboveground biomass and as a measure of investments into future growth we used storage of carbohydrates. Biomass production was higher in managed plots (both mown-fertilized and mown plots) when expressed per growth unit and lower when expressed per shoot. Storage of carbohydrates was not different at the end of the season in plants from differently treated plots when expressed per growth unit, but was significantly reduced for individual shoots from managed plots. This implies that the interpretation of the results from our study depends on organization level and method of plant response assessment (storage vs. growth).
Permanent Link: http://hdl.handle.net/11104/0200457