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Influence of soil heterogeneity and competition on growth features of three meadow species
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SYSNO ASEP 0104172 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Influence of soil heterogeneity and competition on growth features of three meadow species Title Vliv půdní heterogenity a kompetice na růstové vlastnosti tří lučních druhů Author(s) Janeček, Štěpán (BU-J) RID
Janečková, P. (CZ)
Lepš, Jan (ENTU-I)Source Title Flora. - : Elsevier - ISSN 0367-2530
Roč. 199, č. 1 (2004), s. 3-11Number of pages 9 s. Language eng - English Country DE - Germany Keywords foraging ; Molinia caerulea ; root distribution Subject RIV EF - Botanics R&D Projects KSK6005114 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA206/02/0953 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z6005908 - BU-J Annotation The effect of competition and artificially created soil heterogeneity was studied in a pot experiment. A tussock grass, Holcus lanatus and rhizomatous sedge Carex hartmanii were grown alone and in combination with another tussock grass, Molinia caerulea, in homogeneous and heterogeneous soil treatments. The heterogeneous treatment consisted of four compartments, two nutrient rich and two nutrient poor, in the homogenous treatment total nutrient content was the same as in the heterogeneous treatment. Soil heterogeneity increased M. caerulea total production, and increased C. hartmanii root:shoot ratio; no effect on H. lanatus was observed. Both M. caerulea and C. hartmanii were able to place their underground organs preferentially into nutrient rich patches. M. caerulea and H. lanatus total biomass was lower in the presence of the competitor; C. hartmanii responded to competition only by increased allocation to rhizoms. M. caerulea was more affected by competition in the heterogeneous environment 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 2005
Number of the records: 1