title: Flowering phenology and potential pollen emission of threeArtemisiaspecies in relation to airborne pollen data in Poznań (Western Poland).
abstract: Artemisiapollen is an important allergen in Europe. In Poznań (Western Poland), threeArtemisiaspecies,A. vulgaris,A. campestrisandA. absinthium, are widely distributed. However, the contributions of these species to the total airborne pollen are unknown. The aim of the study was to determine the flowering phenology and pollen production of the three abovementioned species and to construct a model of potentialArtemisiapollen emission in the study area. Phenological observations were conducted in 2012 at six sites in Poznań using a BBCH phenological scale. Pollen production was estimated by counting the pollen grains per flower and recalculating the totals per inflorescence, plant and population in the study area. Airborne pollen concentrations were obtained using a Hirst-type volumetric trap located in the study area.Artemisia vulgarisbegan to flower the earliest, followed byA. absinthiumand thenA. campestris. The flowering ofA. vulgariscorresponded to the first peak in the airborne pollen level, and the flowering ofA. campestriscoincided with the second pollen peak. The highest amounts of pollen per single plant were produced byA. vulgarisandA. absinthium.A. campestrisproduced considerably less pollen, however, due to its common occurrence, it contributed markedly (30 %) to the summation of total of recorded pollen.A. vulgarisis the most important pollen source in Poznań, but the roles of two otherArtemisiaspecies cannot be ignored. In particular,A. campestrisshould be considered as an important pollen contributor and likely might be one of the main causes of allergic reactions during late summer.
authors.affiliation: Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznan, Poland ; Department of Climatology, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Dzięgielowa 27, 61-680 Poznan, Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Bogawski
authors.affiliation: Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznan, Poland.
authors.forename: Łukasz
authors.initials: Ł
authors.lastname: Grewling
authors.affiliation: Department of Plant Taxonomy, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznan, Poland.
authors.forename: Agata
authors.initials: A
authors.lastname: Frątczak
keywords: Aeroallergen; Artemisia absinthium; Artemisia campestris; Artemisia vulgaris; Pollen production