DOI: 10.11118/978-80-7701-087-0-0294

PHENOLOGICAL MONITORING OF ALLERGENIC GRASSES IN RECREATIONAL ZONES: RISKS OF AN EARLY POLLEN SEASON IN THE CONTEXT OF REGIONAL FLOWERING VARIABILITY

Andrea Srubková¹

¹ Czech Hydrometeorological department, branch Brno, Kroftova 43, 616 67 Brno, Czechia

Recreational zones in climatically distinct regions require a specific approach to maintenance management with regard to visitor health. This study analyzes flowering dynamics and the associated pollen production of two key allergenic species: meadow foxtail (Alopecurus pratensis) and orchard grass (Dactylis glomerata). The monitoring is based on data from three phenological stations: Lednice (South Moravia), Běleč nad Orlicí (East Bohemia), and Mladecko (Silesia). The aim of the research is to quantify temporal differences in the onset and duration of flowering and to determine the periods of highest risk for the pollen season. For meadow foxtail, the results confirm significant variability in the onset of pollen production; however, an increasingly earlier onset of flowering is observed across all sites. A notable difference lies in the flowering duration: in warmer regions, meadow foxtail flowers for an average of 22 days, whereas in cooler areas, this period extends up to 46 days. Orchard grass also exhibits significant variability and an earlier onset of flowering, but maintains an average flowering duration of approximately 23 days across all locations. This study highlights preventive measures and serves as a basis for improving the quality of life and the safe movement of allergy sufferers within recreational zones.

Klíčová slova: Flowering phenophase, allergies, poaceae family, recreation

stránky: 294-298, Publikováno: 2026, online: 2026