Survival of Rumex obtusifolius L. in an unmanaged grassland
| Autor: | Alois Honek, Stanislav Pekár, Zdenka Martinkova, J. Strobach |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
geography
geography.geographical_feature_category Ecology media_common.quotation_subject fungi food and beverages Plant Science Rumex obtusifolius Biology biology.organism_classification Competition (biology) Grassland Rhizome Plant ecology Agronomy Botany Quadrat Festuca rubra media_common Woody plant |
| Zdroj: | Plant Ecology. 205:105-111 |
| ISSN: | 1573-5052 1385-0237 |
| DOI: | 10.1007/s11258-009-9601-8 |
| Popis: | Survival of broad-leaved dock (Rumex obtusifolius) plants exposed to grass (mainly Festuca rubra and Elymusrepens) competition in unmanaged grassland in Central Europe was investigated. Individual plants (n = 244) were marked in a 35 × 28 m experimental plot divided into 20 quadrats. The mortality of the dock plants was recorded twice a year, and plant size (number of flowering stems) recorded for 8 years (2000–2007). Half of the plants died within 4 years and 4% survived to the end of the experiment. On average, winter mortality (October–April, 60%) was greater than summer mortality (May–September, 40%) but both varied between years. The plants decreased in size as they approached death. The survival of dock plants in particular quadrats was negatively correlated with the biomass of grass roots and rhizomes. Intensity of below-ground competition and possibly water deficiency contributed most to dock mortality. |
| Databáze: | OpenAIRE |
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